(China (Mainland))
Product Summary
The M62X42B 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 the M62X42B and a microcomputer uses 4 data buses, 4 address buses, 3 control buses and 2 chip selects and carries out setting up, amending and reading time.
Parametrics
M62X42B absolute maimum ratings: (1)Power supply voltage, VDD: -0.3 to 7V; (2)Input voltage VI: -0.3 to VDD+0.3V; (3)Output voltage Vo: -0.3 to VDD+0.3V; (4)Storage temperature, Tstg: -55 to 85℃; (5)Soldering conditions (lead), Tsol: Temp.:under 260℃; Time: within 10 seconds.
Features
M62X42B features: (1)32.768kHz built-in crystal oscillator; (2)Real time clock of second, minute, date, month, year and day of week; (3)Interface corresponding to microcomputer bus; (4)30-second compensation controlled by software; (5)Periodical interrupt function (or periodical waveform output) for alarm; (6)STOP/START function for clock; (7)12/24 hour selectable; (8)AEL input for 8048 system, 8051 system or 8085 system (when a microcomputer does not provide the ALE output, fix the AEL input at H); (9)Low current consumption for CMOS device; (10)Low STANDBY voltage and small STANDBY current; (11)18-pin plastic DIP(DIP18-P-300); (12)24-pin plastic SOP.
Diagrams
