M41T56M6F 512 bit (64 bit x8) Serial Access TIMEKEEPER SRAM complex integrated circuits

FEATURES SUMMARY

■ 5V ±10% SUPPLY VOLTAGE

■ COUNTERS FOR SECONDS, MINUTES, HOURS, DAY, DATE, MONTH, YEARS, AND CENTURY

■ YEAR 2000 COMPLIANT

■ SOFTWARE CLOCK CALIBRATION

■ AUTOMATIC POWER-FAIL DETECT AND SWITCH CIRCUITRY

■ I 2C BUS COMPATIBLE

■ 56 BYTES OF GENERAL PURPOSE RAM

■ ULTRA-LOW BATTERY SUPPLY CURRENT OF 450nA

■ LOW OPERATING CURRENT OF 300µA

■ OPERATING TEMPERATURE OF –40 to 85°C

■ AUTOMATIC LEAP YEAR COMPENSATION

■ SPECIAL SOFTWARE PROGRAMMABLE OUTPUT

■ PACKAGING OPTIONS INCLUDE: – 28-lead SOIC and SNAPHAT® TOP (to be ordered separately) – SO8

SUMMARY DESCRIPTION

The M41T56 TIMEKEEPER® is a low power, 512- bit static CMOS RAM organized as 64 words by 8 bits. A built-in 32,768Hz oscillator (external crystal controlled) and the first 8 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 twoline, bi-directional bus. The built-in address register is incremented automatically after each WRITE or READ data byte.

STOCK LIST

           King--- Originator of ANTERWELL, engaged in the IC electronics industry in 1998 and establish ANTERWELL in 2004. The company is located in Shenzhen Huaqiang North, the largest electronic center in Asia. Our main business is the technical development and electronic products import and export business. Currently, we have branches in Hong Kong and Malaysia.

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