Real Time Clocks

What is a Real Time Clock?A Real Time Clock (RTC) is a computer clock which is usually in the form of an integrated circuit. They have been designed to keep track of time, in real time - hence the product name. A Real Time Clock is usually an integral part of the computer motherboard. More often than not, a RTC will also include a calendar and an alarmHow do Real Time Clocks work?The memory on the clocks system stores system descriptions and set up values such as "Current Time Value". The information that is held in the RTC is read with a microprocessor, commonly over a serial interface which facilitate the performance of the software functions that are time dependant. They are designed to run on an ultra-low power consumption, often run on a lithium battery source or normal power. This power source allows them to continue running and generating real time when a system is down. The newer models of RTC use super-capacitors as a source of power that can be recharged and soldered to the board.Some Real Time Clocks feature synchronisation to an external signal, such as a compensated power line frequency. It allows the device to provide an accurate result without having an on-board temperature compensation scheme. RTC Time Values Year Month Date Hours Minutes Seconds
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Part Details Brand Stock Functions Recently Introduced Date Format Time Format User RAM Bus Type Mounting Type Package Type Pin Count Dimensions Length Width Height Maximum Operating Supply Voltage Maximum Operating Temperature Minimum Operating Temperature Minimum Operating Supply Voltage
STMicroelectronics M41T80M6F, Real Time Clock Serial-2 Wire, Serial-I2C, 8-Pin SOIC
  • ₪ 7.62
  • Each (On a Reel of 2500)
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STMicroelectronics Please note that the Stock level on this page is periodically updated during the day.

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7465 Please note that the Stock level on this page is periodically updated during the day.

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Alarm, Calendar Please note that the Stock level on this page is periodically updated during the day.

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- Binary, D:D:M:Y:C Please note that the Stock level on this page is periodically updated during the day.

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- - Serial-2 Wire, Serial-I2C Please note that the Stock level on this page is periodically updated during the day.

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Surface Mount Please note that the Stock level on this page is periodically updated during the day.

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SO Please note that the Stock level on this page is periodically updated during the day.

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8 Please note that the Stock level on this page is periodically updated during the day.

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5 x 4 x 1.5mm Please note that the Stock level on this page is periodically updated during the day.

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5mm Please note that the Stock level on this page is periodically updated during the day.

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2 V Please note that the Stock level on this page is periodically updated during the day.

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STMicroelectronics M41T82RM6F, Real Time Clock, 32bit RAM Serial-2 Wire, Serial-I2C, 8-Pin SOIC
  • ₪ 9.14
  • Each (On a Reel of 2500)
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STMicroelectronics Please note that the Stock level on this page is periodically updated during the day.

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Check Stock Levels Alarm, Battery Backup, Calendar, Watchdog Timer Please note that the Stock level on this page is periodically updated during the day.

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- Binary, D:D:M:Y:C Please note that the Stock level on this page is periodically updated during the day.

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Serial-2 Wire, Serial-I2C Please note that the Stock level on this page is periodically updated during the day.

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Surface Mount Please note that the Stock level on this page is periodically updated during the day.

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SO Please note that the Stock level on this page is periodically updated during the day.

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8 Please note that the Stock level on this page is periodically updated during the day.

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5 x 4 x 1.5mm Please note that the Stock level on this page is periodically updated during the day.

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5mm Please note that the Stock level on this page is periodically updated during the day.

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STMicroelectronics M41T82SM6F, Real Time Clock, 32bit RAM Serial-2 Wire, Serial-I2C, 8-Pin SOIC
  • ₪ 9.14
  • Each (On a Reel of 2500)
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STMicroelectronics Please note that the Stock level on this page is periodically updated during the day.

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Check Stock Levels Alarm, Battery Backup, Calendar, Watchdog Timer Please note that the Stock level on this page is periodically updated during the day.

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- Binary, D:D:M:Y:C Please note that the Stock level on this page is periodically updated during the day.

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Serial-2 Wire, Serial-I2C Please note that the Stock level on this page is periodically updated during the day.

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Surface Mount Please note that the Stock level on this page is periodically updated during the day.

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SO Please note that the Stock level on this page is periodically updated during the day.

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8 Please note that the Stock level on this page is periodically updated during the day.

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5 x 4 x 1.5mm Please note that the Stock level on this page is periodically updated during the day.

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STMicroelectronics M41ST85WMX6TR, Real Time Clock, 64bit RAM, 28-Pin SOX
  • ₪ 24.68
  • Each (On a Reel of 1000)
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STMicroelectronics Please note that the Stock level on this page is periodically updated during the day.

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Check Stock Levels Alarm, Battery Backup, Calendar, Watchdog Timer Please note that the Stock level on this page is periodically updated during the day.

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- Binary, D:D:M:Y:C Please note that the Stock level on this page is periodically updated during the day.

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SOX Please note that the Stock level on this page is periodically updated during the day.

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28 Please note that the Stock level on this page is periodically updated during the day.

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18.01 x 7.67 x 2.39mm Please note that the Stock level on this page is periodically updated during the day.

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18.01mm Please note that the Stock level on this page is periodically updated during the day.

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3.6 V Please note that the Stock level on this page is periodically updated during the day.

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+85 °C Please note that the Stock level on this page is periodically updated during the day.

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-40 °C Please note that the Stock level on this page is periodically updated during the day.

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2.7 V Please note that the Stock level on this page is periodically updated during the day.

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Microchip MCP79401-I/SN, Real Time Clock (RTC) Serial-I2C, 8-Pin SOIC
  • ₪ 6.64
  • Each (In a Tube of 100)
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Microchip Please note that the Stock level on this page is periodically updated during the day.

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450 Please note that the Stock level on this page is periodically updated during the day.

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- - - HH:MM:SS Please note that the Stock level on this page is periodically updated during the day.

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Surface Mount Please note that the Stock level on this page is periodically updated during the day.

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SOIC Please note that the Stock level on this page is periodically updated during the day.

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8 Please note that the Stock level on this page is periodically updated during the day.

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4.9 x 3.9 x 1.5mm Please note that the Stock level on this page is periodically updated during the day.

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4.9mm Please note that the Stock level on this page is periodically updated during the day.

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5.5 V Please note that the Stock level on this page is periodically updated during the day.

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+85 °C Please note that the Stock level on this page is periodically updated during the day.

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-40 °C Please note that the Stock level on this page is periodically updated during the day.

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1.8 V Please note that the Stock level on this page is periodically updated during the day.

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Microchip MCP79412-I/MS, Real Time Clock (RTC) Serial-I2C, 8-Pin MSOP
  • ₪ 7.48
  • Each (In a Tube of 100)
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Microchip Please note that the Stock level on this page is periodically updated during the day.

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280 Please note that the Stock level on this page is periodically updated during the day.

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- - - HH:MM:SS Please note that the Stock level on this page is periodically updated during the day.

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- Serial-I2C Please note that the Stock level on this page is periodically updated during the day.

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Surface Mount Please note that the Stock level on this page is periodically updated during the day.

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MSOP Please note that the Stock level on this page is periodically updated during the day.

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8 Please note that the Stock level on this page is periodically updated during the day.

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3 x 3 x 0.95mm Please note that the Stock level on this page is periodically updated during the day.

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3mm Please note that the Stock level on this page is periodically updated during the day.

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3mm Please note that the Stock level on this page is periodically updated during the day.

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0.95mm Please note that the Stock level on this page is periodically updated during the day.

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5.5 V Please note that the Stock level on this page is periodically updated during the day.

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+85 °C Please note that the Stock level on this page is periodically updated during the day.

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-40 °C Please note that the Stock level on this page is periodically updated during the day.

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1.8 V Please note that the Stock level on this page is periodically updated during the day.

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Microchip MCP7940N-E/SN, Real Time Clock (RTC) Serial-I2C, 8-Pin SOIC
  • ₪ 5.90
  • Each (In a Tube of 100)
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Microchip Please note that the Stock level on this page is periodically updated during the day.

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260 Please note that the Stock level on this page is periodically updated during the day.

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- - - HH:MM:SS Please note that the Stock level on this page is periodically updated during the day.

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- Serial-I2C Please note that the Stock level on this page is periodically updated during the day.

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Surface Mount Please note that the Stock level on this page is periodically updated during the day.

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SOIC Please note that the Stock level on this page is periodically updated during the day.

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8 Please note that the Stock level on this page is periodically updated during the day.

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4.9 x 3.9 x 1.5mm Please note that the Stock level on this page is periodically updated during the day.

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5.5 V Please note that the Stock level on this page is periodically updated during the day.

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+125 °C Please note that the Stock level on this page is periodically updated during the day.

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1.8 V Please note that the Stock level on this page is periodically updated during the day.

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Microchip MCP795W10-I/SL, Real Time Clock (RTC) Serial-SPI, 14-Pin SOIC
  • ₪ 11.18
  • Each (In a Tube of 57)
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Microchip Please note that the Stock level on this page is periodically updated during the day.

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260 Please note that the Stock level on this page is periodically updated during the day.

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Surface Mount Please note that the Stock level on this page is periodically updated during the day.

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SOIC Please note that the Stock level on this page is periodically updated during the day.

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14 Please note that the Stock level on this page is periodically updated during the day.

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8.65 x 3.9 x 1.5mm Please note that the Stock level on this page is periodically updated during the day.

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1.8 V Please note that the Stock level on this page is periodically updated during the day.

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Microchip MCP79400-I/MS, Real Time Clock (RTC) Serial-I2C, 8-Pin MSOP
  • ₪ 6.33
  • Each (In a Tube of 100)
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Microchip Please note that the Stock level on this page is periodically updated during the day.

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Check Stock Levels - - D:M:Y, DW Please note that the Stock level on this page is periodically updated during the day.

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HH:MM:SS Please note that the Stock level on this page is periodically updated during the day.

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MSOP Please note that the Stock level on this page is periodically updated during the day.

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8 Please note that the Stock level on this page is periodically updated during the day.

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3 x 3 x 0.95mm Please note that the Stock level on this page is periodically updated during the day.

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3mm Please note that the Stock level on this page is periodically updated during the day.

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3mm Please note that the Stock level on this page is periodically updated during the day.

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0.95mm Please note that the Stock level on this page is periodically updated during the day.

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5.5 V Please note that the Stock level on this page is periodically updated during the day.

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+85 °C Please note that the Stock level on this page is periodically updated during the day.

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BU9873FVT-GE2, Real Time Clock (RTC) Serial-I2C, 8-Pin TSSOP
  • ₪ 2.63
  • Each (On a Reel of 3000)
  • Compare
  • RS Stock No. 185-0951
  • Brand ROHM
  • Mfr. Part No. BU9873FVT-GE2
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Check Stock Levels Real Time Clock Please note that the Stock level on this page is periodically updated during the day.

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- YY:MM:DD:dd Please note that the Stock level on this page is periodically updated during the day.

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HH:MM:SS Please note that the Stock level on this page is periodically updated during the day.

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Surface Mount Please note that the Stock level on this page is periodically updated during the day.

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TSSOP Please note that the Stock level on this page is periodically updated during the day.

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8 Please note that the Stock level on this page is periodically updated during the day.

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4.4 x 3 x 1mm Please note that the Stock level on this page is periodically updated during the day.

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3mm Please note that the Stock level on this page is periodically updated during the day.

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1mm Please note that the Stock level on this page is periodically updated during the day.

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5.5 V Please note that the Stock level on this page is periodically updated during the day.

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+85 °C Please note that the Stock level on this page is periodically updated during the day.

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-40 °C Please note that the Stock level on this page is periodically updated during the day.

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  • RS Stock No. 185-1011
  • Brand ROHM
  • Mfr. Part No. BU9873FVT-GE2
ROHM Please note that the Stock level on this page is periodically updated during the day.

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Check Stock Levels Real Time Clock Please note that the Stock level on this page is periodically updated during the day.

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- YY:MM:DD:dd Please note that the Stock level on this page is periodically updated during the day.

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HH:MM:SS Please note that the Stock level on this page is periodically updated during the day.

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- Serial-I2C Please note that the Stock level on this page is periodically updated during the day.

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Surface Mount Please note that the Stock level on this page is periodically updated during the day.

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TSSOP Please note that the Stock level on this page is periodically updated during the day.

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8 Please note that the Stock level on this page is periodically updated during the day.

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4.4 x 3 x 1mm Please note that the Stock level on this page is periodically updated during the day.

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4.4mm Please note that the Stock level on this page is periodically updated during the day.

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3mm Please note that the Stock level on this page is periodically updated during the day.

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1mm Please note that the Stock level on this page is periodically updated during the day.

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5.5 V Please note that the Stock level on this page is periodically updated during the day.

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+85 °C Please note that the Stock level on this page is periodically updated during the day.

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-40 °C Please note that the Stock level on this page is periodically updated during the day.

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1.8 V Please note that the Stock level on this page is periodically updated during the day.

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Microchip Please note that the Stock level on this page is periodically updated during the day.

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Check Stock Levels - - - HH:MM:SS Please note that the Stock level on this page is periodically updated during the day.

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- Serial-I2C Please note that the Stock level on this page is periodically updated during the day.

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Surface Mount Please note that the Stock level on this page is periodically updated during the day.

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MSOP Please note that the Stock level on this page is periodically updated during the day.

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8 Please note that the Stock level on this page is periodically updated during the day.

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3 x 3 x 0.95mm Please note that the Stock level on this page is periodically updated during the day.

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3mm Please note that the Stock level on this page is periodically updated during the day.

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3mm Please note that the Stock level on this page is periodically updated during the day.

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0.95mm Please note that the Stock level on this page is periodically updated during the day.

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5.5 V Please note that the Stock level on this page is periodically updated during the day.

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+85 °C Please note that the Stock level on this page is periodically updated during the day.

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-40 °C Please note that the Stock level on this page is periodically updated during the day.

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1.8 V Please note that the Stock level on this page is periodically updated during the day.

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Microchip Please note that the Stock level on this page is periodically updated during the day.

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Check Stock Levels - - - HH:MM:SS Please note that the Stock level on this page is periodically updated during the day.

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- Serial-I2C Please note that the Stock level on this page is periodically updated during the day.

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Surface Mount Please note that the Stock level on this page is periodically updated during the day.

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SOIC Please note that the Stock level on this page is periodically updated during the day.

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8 Please note that the Stock level on this page is periodically updated during the day.

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4.9 x 3.9 x 1.5mm Please note that the Stock level on this page is periodically updated during the day.

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4.9mm Please note that the Stock level on this page is periodically updated during the day.

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3.9mm Please note that the Stock level on this page is periodically updated during the day.

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1.5mm Please note that the Stock level on this page is periodically updated during the day.

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5.5 V Please note that the Stock level on this page is periodically updated during the day.

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+85 °C Please note that the Stock level on this page is periodically updated during the day.

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-40 °C Please note that the Stock level on this page is periodically updated during the day.

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1.8 V Please note that the Stock level on this page is periodically updated during the day.

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Microchip Please note that the Stock level on this page is periodically updated during the day.

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Check Stock Levels - - - HH:MM:SS Please note that the Stock level on this page is periodically updated during the day.

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- Serial-I2C Please note that the Stock level on this page is periodically updated during the day.

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Surface Mount Please note that the Stock level on this page is periodically updated during the day.

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SOIC Please note that the Stock level on this page is periodically updated during the day.

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8 Please note that the Stock level on this page is periodically updated during the day.

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4.9 x 3.9 x 1.5mm Please note that the Stock level on this page is periodically updated during the day.

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4.9mm Please note that the Stock level on this page is periodically updated during the day.

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3.9mm Please note that the Stock level on this page is periodically updated during the day.

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1.5mm Please note that the Stock level on this page is periodically updated during the day.

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5.5 V Please note that the Stock level on this page is periodically updated during the day.

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+125 °C Please note that the Stock level on this page is periodically updated during the day.

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-40 °C Please note that the Stock level on this page is periodically updated during the day.

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1.8 V Please note that the Stock level on this page is periodically updated during the day.

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Microchip Please note that the Stock level on this page is periodically updated during the day.

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Check Stock Levels - - - HH:MM:SS Please note that the Stock level on this page is periodically updated during the day.

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- Serial-I2C Please note that the Stock level on this page is periodically updated during the day.

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Surface Mount Please note that the Stock level on this page is periodically updated during the day.

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MSOP Please note that the Stock level on this page is periodically updated during the day.

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8 Please note that the Stock level on this page is periodically updated during the day.

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3 x 3 x 0.95mm Please note that the Stock level on this page is periodically updated during the day.

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3mm Please note that the Stock level on this page is periodically updated during the day.

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3mm Please note that the Stock level on this page is periodically updated during the day.

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0.95mm Please note that the Stock level on this page is periodically updated during the day.

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5.5 V Please note that the Stock level on this page is periodically updated during the day.

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Check Stock Levels - - - HH:MM:SS Please note that the Stock level on this page is periodically updated during the day.

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SOIC Please note that the Stock level on this page is periodically updated during the day.

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14 Please note that the Stock level on this page is periodically updated during the day.

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8.65 x 3.9 x 1.5mm Please note that the Stock level on this page is periodically updated during the day.

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8.65mm Please note that the Stock level on this page is periodically updated during the day.

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3.9mm Please note that the Stock level on this page is periodically updated during the day.

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1.5mm Please note that the Stock level on this page is periodically updated during the day.

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3.6 V Please note that the Stock level on this page is periodically updated during the day.

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+85 °C Please note that the Stock level on this page is periodically updated during the day.

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1.8 V Please note that the Stock level on this page is periodically updated during the day.

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ROHM BU9873NUX-TTR, Real Time Clock (RTC) Serial-I2C, 8-Pin VSON008X2030
  • ₪ 3.07
  • Each (On a Reel of 4000)
  • Compare
  • RS Stock No. 177-9886
  • Brand ROHM
  • Mfr. Part No. BU9873NUX-TTR
ROHM Please note that the Stock level on this page is periodically updated during the day.

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- - HH:MM:SS Please note that the Stock level on this page is periodically updated during the day.

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VSON008X2030 Please note that the Stock level on this page is periodically updated during the day.

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8 Please note that the Stock level on this page is periodically updated during the day.

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2 x 3 x 0.58mm Please note that the Stock level on this page is periodically updated during the day.

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2mm Please note that the Stock level on this page is periodically updated during the day.

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3mm Please note that the Stock level on this page is periodically updated during the day.

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0.85mm Please note that the Stock level on this page is periodically updated during the day.

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5.5 V Please note that the Stock level on this page is periodically updated during the day.

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  • RS Stock No. 178-0558
  • Brand ROHM
  • Mfr. Part No. BU9873NUX-TTR
ROHM Please note that the Stock level on this page is periodically updated during the day.

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Check Stock Levels Real Time Clock Please note that the Stock level on this page is periodically updated during the day.

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- - HH:MM:SS Please note that the Stock level on this page is periodically updated during the day.

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Surface Mount Please note that the Stock level on this page is periodically updated during the day.

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VSON008X2030 Please note that the Stock level on this page is periodically updated during the day.

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8 Please note that the Stock level on this page is periodically updated during the day.

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2 x 3 x 0.58mm Please note that the Stock level on this page is periodically updated during the day.

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2mm Please note that the Stock level on this page is periodically updated during the day.

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3mm Please note that the Stock level on this page is periodically updated during the day.

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0.85mm Please note that the Stock level on this page is periodically updated during the day.

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5.5 V Please note that the Stock level on this page is periodically updated during the day.

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+85 °C Please note that the Stock level on this page is periodically updated during the day.

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-40 °C Please note that the Stock level on this page is periodically updated during the day.

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1.8 V Please note that the Stock level on this page is periodically updated during the day.

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STMicroelectronics Please note that the Stock level on this page is periodically updated during the day.

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Check Stock Levels Alarm, Battery Backup, Calendar, Watchdog Timer Please note that the Stock level on this page is periodically updated during the day.

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SOX Please note that the Stock level on this page is periodically updated during the day.

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28 Please note that the Stock level on this page is periodically updated during the day.

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18.01 x 7.67 x 2.39mm Please note that the Stock level on this page is periodically updated during the day.

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18.01mm Please note that the Stock level on this page is periodically updated during the day.

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7.67mm Please note that the Stock level on this page is periodically updated during the day.

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2.39mm Please note that the Stock level on this page is periodically updated during the day.

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3.6 V Please note that the Stock level on this page is periodically updated during the day.

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+85 °C Please note that the Stock level on this page is periodically updated during the day.

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-40 °C Please note that the Stock level on this page is periodically updated during the day.

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2.7 V Please note that the Stock level on this page is periodically updated during the day.

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STMicroelectronics Please note that the Stock level on this page is periodically updated during the day.

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Check Stock Levels Alarm, Calendar Please note that the Stock level on this page is periodically updated during the day.

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- Binary, D:D:M:Y:C Please note that the Stock level on this page is periodically updated during the day.

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- - Serial-2 Wire, Serial-I2C Please note that the Stock level on this page is periodically updated during the day.

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Surface Mount Please note that the Stock level on this page is periodically updated during the day.

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SO Please note that the Stock level on this page is periodically updated during the day.

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8 Please note that the Stock level on this page is periodically updated during the day.

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5 x 4 x 1.5mm Please note that the Stock level on this page is periodically updated during the day.

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5mm Please note that the Stock level on this page is periodically updated during the day.

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4mm Please note that the Stock level on this page is periodically updated during the day.

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1.5mm Please note that the Stock level on this page is periodically updated during the day.

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5.5 V Please note that the Stock level on this page is periodically updated during the day.

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+85 °C Please note that the Stock level on this page is periodically updated during the day.

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-40 °C Please note that the Stock level on this page is periodically updated during the day.

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2 V Please note that the Stock level on this page is periodically updated during the day.

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