MSM62X42B Overview
The MSM62X42B is a bus-connection Microputer 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 microputer uses 4 data buses, 4 address buses, 3 control buses and 2 chip selects and carries out setting up, amending and reading time. ALE input is available for 8048 system, 8051 system or 8085 system...
MSM62X42B Key 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 microputer bus
- 30-second pensation controlled by software
- Periodical interrupt function (or periodical waveform output) for alarm
- STOP/START function for clock
- 12/24 hour selectable
- AEL input for 8048 system, 8051 system or 8085 system (when a microputer does not provide the ALE output, fix the AEL in
- Low current consumption for CMOS device
- Low STANDBY voltage and small STANDBY current