MSM6242B - DIRECT BUS CONNECTED CMOS REAL TIME CLOCK/CALENDAR

OKI Electric

General Description

The MSM6242B is a silicon gate CMOS Real Time Clock/Calendar for use in direct busconnection Microprocessor/Microcomputer applications.

An on-chip 32.768 KHz crystal oscillator time base is divided to provide addressable 4-bit I/O data for SECONDS, MINUTES, HOURS, DAY OF WEEK, DATE, MONTH and YEAR.

Key Features

DIRECT.

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MSM6242B direct bus connected cmos real time clock/calendar by OKI Electric - Datasheet Preview

Datasheet Details

Part number	MSM6242B
Manufacturer	OKI Electric
File Size	177.74 KB
Description	DIRECT BUS CONNECTED CMOS REAL TIME CLOCK/CALENDAR
Datasheet	MSM6242B Datasheet

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¡ Semiconductor MSM6242B ¡ Semiconductor DESCRIPTION The MSM6242B is a silicon gate CMOS Real Time Clock/Calendar for use in direct busconnection Microprocessor/Microcomputer applications. An on-chip 32.768 KHz crystal oscillator time base is divided to provide addressable 4-bit I/O data for SECONDS, MINUTES, HOURS, DAY OF WEEK, DATE, MONTH and YEAR. Data access is controlled by 4-bit address, chip selects (CSO, CS1), WRITE, READ, and ALE. Control Registers D, E and F provide for 30 SECOND error adjustment, INTERRUPT REQUEST (IRQ FLAG) and BUSY status bits, clock STOP, HOLD, and RESET FLAG bits, 4 selectable INTERRUPTS rates are available at the STD.