M62X42B Datasheet (OKI electronic componets)

M62X42B, MSM62X42B

The MSM62X42B is a bus-connection Microcomputer peripheral IC of a Real Time Clock with built-in crystal in the perpetual calendar which can be read and written from a second unit.

The interface between this IC and a microcomputer uses 4 data buses, 4 address buses, 3 control buses and 2 chip select

M62X42B Features

* 32.768kHz built-in crystal oscillator (2 ranks of ± 10PPM and ± 50PPM

* DIP) (2 ranks of ± 20PPM and ± 50PPM

* SOP)

* Real time clock of second, minute, date, month, year and day of week

* Interface corresponding to microcomputer bus

* 30-second compen