Description
AD0
AD7 NC MOT
CS
AS R/ W DS
RESET
IRQ
SQW VCC GND
Multiplexed Address/Data Bus
No Connection
Bus Type Selection
Chip Select
Address Strobe
Read/Write Input
Data Strobe
Reset Input
Features
- Drop.
- in replacement for IBM AT computer clock/calendar Pin-compatible with the MC146818B and DS1287 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,.
DS12887 Datasheet
