X1228 Datasheet (Intersil Corporation) - Real Time Clock/Calendar/CPU Supervisor

X1228, Real Time Clock/Calendar/CPU Supervisor

14 Ld 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 PIN ASSIGNMENTS Pin Number SOIC/TSSOP 1 Symbol X1 Brief Description X1.

The X1 pin is the input of an inverting amplifier.

An external 32.768kHz quartz crystal

X1228 Features

* Real Time Clock/Calendar

* Tracks Time in Hours, Minutes, and Seconds

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

* 2 Polled Alarms (Non-volatile)

* Settable on the Second, Minute, Hour, Day of the Week, Day, or Month

* Repeat Mode (periodic interrupts)