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

...
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제품설명 단가 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 제품 번호 205-3456
제조사 부품 번호X1B000311000112
제조사Epson
₩1,478.70
Each (On a Reel of 250)
수량
Real Time Clock - - - - - 3.2x2.5 ceramic package 10 - - - - - -
RS 제품 번호 205-3453
제조사 부품 번호X1B000232000112
제조사Epson
₩3,785.10
Each (In a Pack of 2)
수량
Real Time Clock - - 128bit - - SOP-14 14 - - - - - -
RS 제품 번호 205-3461
제조사 부품 번호X1B000371000212
제조사Epson
₩3,964.90
Each (In a Pack of 2)
수량
Real Time Clock - - - - - 3.2x2.5 ceramic package 10 - - - - - -
RS 제품 번호 205-3454
제조사 부품 번호X1B000242000112
제조사Epson
₩1,753.05
Each (On a Reel of 250)
수량
Real Time Clock - - 128bit - - SOP-14 14 - - - - - -
RS 제품 번호 205-3457
제조사 부품 번호X1B000311000112
제조사Epson
₩1,802.65
Each (In a Pack of 5)
수량
Real Time Clock - - - - - 3.2x2.5 ceramic package 10 - - - - - -
RS 제품 번호 205-3459
제조사 부품 번호X1B000371000112
제조사Epson
₩6,037.25
Each
수량
Real Time Clock - - - - - 3.2x2.5 ceramic package 10 - - - - - -
RS 제품 번호 205-3452
제조사 부품 번호X1B000232000112
제조사Epson
₩3,064.35
Each (On a Reel of 250)
수량
Real Time Clock - - 128bit - - SOP-14 14 - - - - - -
RS 제품 번호 205-3460
제조사 부품 번호X1B000371000212
제조사Epson
₩2,883.00
Each (On a Reel of 250)
수량
Real Time Clock - - - - - 3.2x2.5 ceramic package 10 - - - - - -
RS 제품 번호 205-3458
제조사 부품 번호X1B000371000112
제조사Epson
₩4,236.15
Each (On a Reel of 250)
수량
Real Time Clock - - - - - 3.2x2.5 ceramic package 10 - - - - - -
RS 제품 번호 205-3455
제조사 부품 번호X1B000242000112
제조사Epson
₩2,162.25
Each (In a Pack of 5)
수량
Real Time Clock - - 128bit - - SOP-14 14 - - - - - -
RS 제품 번호 205-3463
제조사 부품 번호X1B000301000112
제조사Epson
₩9,011.70
Each
수량
Real Time Clock - - - - - 3.2x2.5 ceramic package 10 - - - - - -
RS 제품 번호 205-3462
제조사 부품 번호X1B000301000112
제조사Epson
₩4,326.05
Each (On a Reel of 250)
수량
Real Time Clock - - - - - 3.2x2.5 ceramic package 10 - - - - - -