DS1689 - (DS1689 / DS1693) 3-Volt/5-Volt Serialized Real-Time Clock
X1 X2 RCLR AD0-AD7 PWR KS CS ALE WR RD VCCO IRQ ORDERING INFORMATION PART # DS1689S DS1689SN DS1693 DESCRIPTION RTC IC, 28-pin SOIC RTC IC, 28-pin SOIC IND RTC Module; 28-pin DIP SQW VCCI GND VBAT VBAUX PSEL CEI CEO - Crystal Input - Crystal Output - RAM Clear Input - Mux’ed Address/Data Bus -
DS1689 Features
* Incorporates industry standard DS1287 PC clock plus enhanced features:
* +3- or +5V operation
* 64-bit silicon serial number
* 64-bit customer specific ROM or additional serial number available
* Power control circuitry supports system power-on from date/time alarm or key closure
