X1228 Datasheet (Xicor) - Real Time Clock/Calendar/CPU Supervisor with EEPROM

X1228, Real Time Clock/Calendar/CPU Supervisor with EEPROM

14-Pin TSSOP/SOIC X1 X2 NC NC NC RESET VSS 1 2 3 4 5 6 7 14 13 12 11 10 9 8 VCC VBACK PHZ/IRQ NC NC SCL SDA NC = No internal connection REV 1.3 3/24/04 www.xicor.com Characteristics subject to change without notice.

2 of 31 X1228 PIN ASSIGNMENTS Pin Number SOIC/TSSOP 1 Symbol X1 Brief Desc

X1228 Features

* Repetitive Alarms & Temperature Compensation 4K (512 x 8) X1228 2-Wire™ RTC Real Time Clock/Calendar/CPU Supervisor with EEPROM FEATURES

* Real Time Clock/Calendar

* Tracks time in Hours, Minutes, and Seconds

* Day of the Week, Day, Month, and Year

* 2 Polled Alar