M48T02-120PC1 数据手册 ( 数据表 ) - STMicroelectronics

DESCRIPTION
The M48T02,12 TIMEKEEPER RAM is a 2K x 8 non-volatile static RAM and real time clock which is pin and functional compatible with the MK48T02,12.
   
■ INTEGRATED ULTRA LOW POWER SRAM,
    REAL TIME CLOCK and POWER-FAIL
    CONTROL CIRCUIT
■ BYTEWIDE RAM-LIKE CLOCK ACCESS
■ BCD CODED YEAR, MONTH, DAY, DATE,
    HOURS, MINUTES and SECONDS
■ CLOCK ACCURACY of ± 1 MINUTE a
    MONTH, @ 25°C
■ SOFTWARE CONTROLLED CLOCK
    CALIBRATION for HIGH ACCURACY
    APPLICATIONS
■ AUTOMATICPOWER-FAILCHIPDESELECTand
    WRITE PROTECTION
■ CHOICE of TWO WRITE PROTECT
    VOLTAGES:
    – M48T02: 4.5V ≤ VPFD ≤ 4.75V
    – M48T12: 4.2V ≤ VPFD ≤ 4.5V
■ SELF CONTAINED BATTERY and CRYSTAL
    in the CAPHAT DIP PACKAGE
■ 10 YEARS of DATA RETENTION and CLOCK
    OPERATION in the ABSENCE of POWER
■ PIN and FUNCTION COMPATIBLE with
    JEDEC STANDARD 2K x 8 SRAMs