Description
AD0-AD7 - Multiplexed Address/Data Bus NC - No Connect MOT - Bus Type Selection CS - RTC Chip Select Input AS - Address Strobe - Read/Write Input R/ W DS - Data Strobe RESET - Reset Input IRQ - Interrupt Request Output SQW - Square Wave Output VCC - +5 Volt Main Supply GND - Ground
DESCRIPTION
The
Features
- Drop-in replacement for IBM AT computer clock/calendar Pin compatible with the MC146818B and DS1287 www. DataSheet4U. com Totally nonvolatile with over 10 years of operation in the absence of power Self-contained subsystem includes lithium, quartz, and support circuitry. Counts seconds, minutes, hours, days, day of the week, date, month, and year with leap year compensation valid up to 2100 Binary or BCD representation of time, calendar, and alarm 12.
- or 24.
- hour clock with AM and P.
12C887 Datasheet
