Features

■ 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

■ Typical clock accuracy of ±1 minute a month,

at 25 °C

■ Software controlled clock calibration for high

accuracy applications

■ Automatic power-fail chip deselect and WRITE

protection

■ WRITE protect voltages

(VPFD = power-fail deselect voltage):

– M48T02: VCC = 4.75 to 5.5 V;

4.5 V ≤ VPFD ≤ 4.75 V

– M48T12: VCC = 4.5 to 5.5 V;

4.2 V ≤ VPFD ≤ 4.5 V

■ Self-contained battery and crystal in the

CAPHAT™ DIP package

■ Pin and function compatible with JEDEC

standard 2 K x 8 SRAMs

■ RoHS compliant

– Lead-free second level interconnect