M48T212V-85MH1

The M48T212V-85MH1 is self-contained devices that include a real time clock (RTC), programmable alarms, a watchdog timer, and two external chip enable outputs which provide control of up to four (two in parallel) external low-power static RAMs. Access to all TIMEKEEPER®functions and the external RAM is the same asconventional bytewide SRAM. The 16 TIMEKEEPER Registers offer Century, Year, Month, Date, Day, Hour, Minute, Second, Calibration, Alarm, Watchdog, and Flags. Externally attached static RAMs are controlled by the M48T212Y/V via the E1CON and E2CON signals.

The absolute maximum ratings of the M48T212V-85MH1 are: (1)Ambient Operating Temperature: 0 to 70 °C ; (2)Storage Temperature (VCC Off, Oscillator Off): 40 to 85 °C ; (3)Lead Solder Temperature for 10 seconds: 260 °C ; (4)Input or Output Voltages: 0.3 to VCC +0.3 V ; (5)Supply Voltage: 0.3 to 4.6 V ; (6)Output Current: 20 mA ; (7)Power Dissipation: 1 W.