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, an RTC will also include a calendar and an alarm

How 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 facilitates the performance of the software functions that are time dependant.

Designed to run on ultra-low power consumption, RTCs often run on a lithium battery source but can also run on 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

...
Read more Read less

Filters

Viewing 1 - 12 of 12 products
Results per page
Description Price Functions 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
RS Stock No. 205-3463
Mfr. Part No.X1B000301000112
BrandEpson
MYR29.80
Each
units
Real Time Clock - - - - - 3.2x2.5 ceramic package 10 - - - - - -
RS Stock No. 205-3456
Mfr. Part No.X1B000311000112
BrandEpson
MYR5.631
Each (On a Reel of 250)
units
Real Time Clock - - - - - 3.2x2.5 ceramic package 10 - - - - - -
RS Stock No. 205-3454
Mfr. Part No.X1B000242000112
BrandEpson
MYR6.523
Each (On a Reel of 250)
units
Real Time Clock - - 128bit - - SOP-14 14 - - - - - -
RS Stock No. 205-3460
Mfr. Part No.X1B000371000212
BrandEpson
MYR11.394
Each (On a Reel of 250)
units
Real Time Clock - - - - - 3.2x2.5 ceramic package 10 - - - - - -
RS Stock No. 205-3455
Mfr. Part No.X1B000242000112
BrandEpson
MYR7.152
Each (In a Pack of 5)
units
Real Time Clock - - 128bit - - SOP-14 14 - - - - - -
RS Stock No. 205-3461
Mfr. Part No.X1B000371000212
BrandEpson
MYR13.11
Each (In a Pack of 2)
units
Real Time Clock - - - - - 3.2x2.5 ceramic package 10 - - - - - -
RS Stock No. 205-3457
Mfr. Part No.X1B000311000112
BrandEpson
MYR5.96
Each (In a Pack of 5)
units
Real Time Clock - - - - - 3.2x2.5 ceramic package 10 - - - - - -
RS Stock No. 205-3452
Mfr. Part No.X1B000232000112
BrandEpson
MYR11.673
Each (On a Reel of 250)
units
Real Time Clock - - 128bit - - SOP-14 14 - - - - - -
RS Stock No. 205-3453
Mfr. Part No.X1B000232000112
BrandEpson
MYR12.515
Each (In a Pack of 2)
units
Real Time Clock - - 128bit - - SOP-14 14 - - - - - -
RS Stock No. 205-3462
Mfr. Part No.X1B000301000112
BrandEpson
MYR14.304
Each (On a Reel of 250)
units
Real Time Clock - - - - - 3.2x2.5 ceramic package 10 - - - - - -
RS Stock No. 205-3459
Mfr. Part No.X1B000371000112
BrandEpson
MYR19.97
Each
units
Real Time Clock - - - - - 3.2x2.5 ceramic package 10 - - - - - -
RS Stock No. 205-3458
Mfr. Part No.X1B000371000112
BrandEpson
MYR14.006
Each (On a Reel of 250)
units
Real Time Clock - - - - - 3.2x2.5 ceramic package 10 - - - - - -