Features
■ DROP-IN REPLACEMENT for PC COMPUTER CLOCK/CALENDAR
■ COUNTS SECONDS, MINUTES, HOURS, DAYS, DAY of the WEEK, DATE, MONTH and YEAR with LEAP YEAR COMPENSATION
■ INTERFACED WITH SOFTWARE AS 128 RAM LOCATIONS:
■ 14 Bytes of Clock and Control Registers
■ 114 Bytes of General Purpose RAM
■ SELECTABLE BUS TIMING (Intel/Motorola)
■ THREE INTERRUPTS are SEPARATELY
■ SOFTWARE-MASKABLE and TESTABLE
■ Time-of-Day Alarm (Once/Second to
■ Once/Day)
■ Periodic Rates from 122µs to 500ms
■ End-of-Clock Update Cycle
■ PROGRAMMABLE SQUARE WAVE OUTPUT
■ SELF-CONTAINED BATTERY and CRYSTAL in the CAPHAT DIP PACKAGE
■ PACKAGING INCLUDES a 28-LEAD SOIC and SNAPHAT® TOP (to be Ordered Separately)
■ SOIC PACKAGE PROVIDES DIRECT CONNECTION for a SNAPHAT TOP CONTAINS the BATTERY and CRYSTAL
■ PIN and FUNCTION COMPATIBLE with bq3285/7A and DS128887