DESCRIPTION
The M41T00 TIMEKEEPER® RAM is a low power Serial TIMEKEEPER with a built-in 32.768kHz oscillator (external crystal controlled). Eight bytes of the RAM are used for the clock/calendar function and are configured in binary coded decimal (BCD) format. Addresses and data are transferred serially via a two-line bi-directional bus. The built-in address register is incremented automatically after each write or read data byte.

■ 2.0V to 5.5V SUPPLY VOLTAGE
■ COUNTERS for SECONDS, MINUTES, HOURS, DAY, DATE, MONTH, YEARS and CENTURY
■ YEAR 2000 COMPLIANT
■ SOFTWARE CLOCK CALIBRATION
■ AUTOMATIC SWITCH-OVER and DESELECT CIRCUITRY
■ I2C BUS COMPATIBLE
■ ULTRA-LOW BATTERY SUPPLY CURRENT of 1µA
■ LOW OPERATING CURRENT of 300µA
■ OPERATING TEMPERATURE of –40 to 85°C
■ AUTOMATIC LEAP YEAR COMPENSATION
■ SPECIAL SOFTWARE PROGRAMMABLE OUTPUT