I2c Real Time Clock Ic

The clock date provides seconds minutes hours day date month and year information.

I2c real time clock ic.

The mcp7940n series of low power real time clocks rtc uses digital timing compensation for an accurate clock calendar a programmable output control for versatility and a power sense circuit that automatically switches to the backup supply. These devices feature either i 2 c or spi bus interfaces and support a range of automotive applications instrument cluster tachographs black boxes for electronic road pricing battery management units car radios. Using a low cost 32 768 khz crystal it tracks time using several internal registers. The date at the end of the month is.

St offers a wide portfolio of real time clock rtc ics with parallel or serial interface including ultra low power devices and the world s smallest package with embedded crystal. The ds1307 serial real time clock rtc is a low power full binary coded decimal bcd clock calendar plus 56 bytes of nv sram. They provide year month day weekday hours minutes and second information and. The integration of the microelectromechanical systems m.

Address and data are transferred serially through an i2c bus. The clock calendar provides seconds minutes hours day date month and year information. The device provides seconds minutes hours day date month and year information. The ds3231m is a low cost extremely accurate i2c real time clock rtc.

The ds1337 serial real time clock is a low power clock calendar with two programmable timeof day alarms and a programmable squarewave output. Address and data are transferred serially through an i2c bus. The clock calendar provides seconds minutes hours day date month and year information. Ablic inc s real time clock ics have a time keeping current consumption of 0 25 µa and a time keeping operating voltage of 1 1 v which enables a much longer battery life.

Address and data are transferred serially through an i2c bidirectional bus. Our devices offer many value added features such as supervisory functions that include alarm battery switchover and reset as well as special features with time stamp anti tamper for secure applications and an. The ic can work from directly supply on vcc and switch to battery automatically when required. The ds1307 is a low power full binary bcd real time clock rtc ic with 56 bytes of svram that communicates through i2c protocol.

The 1339 serial real time clock rtc is a low power clock date device with two programmable time of day alarms and a programmable square wave output. The 1337ag device is a low power serial real time clock rtc device with two programmable time of day alarms and a programmable square wave output. Our automotive real time clocks provide the highest reliability and lowest power consumption.