M41T256Y
FEATURES
SUMMARY
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5V OPERATING VOLTAGE SERIAL INTERFACE SUPPORTS EXTENDED I2C BUS ADDRESSING (400k Hz) AUTOMATIC SWITCH-OVER AND DESELECT CIRCUITRY POWER-FAIL DESELECT VOLTAGES:
- M41T256Y: VCC = 4.5 to 5.5V; VPFD = 4.2 < VPFD < 4.5V COUNTERS FOR TENTHS/HUNDREDTHS OF SECONDS, SECONDS, MINUTES, HOURS, DAY, DATE, MONTH, and YEAR PROGRAMMABLE SOFTWARE CLOCK CALIBRATION 32,752 BYTES OF GENERAL PURPOSE RAM MICROPROCESSOR POWER-ON RESET HOLDS MICROPROCESSOR IN RESET UNTIL SUPPLY VOLTAGE REACHES STABLE OPERATING LEVEL AUTOMATIC ADDRESS-INCREMENTING TAMPER INDICATION CIRCUIT WITH TIMESTAMP SLEEP MODE FUNCTION PACKAGING INCLUDES A 44-LEAD SOIC AND SNAPHAT® TOP (to be ordered separately) SOIC PACKAGE PROVIDES DIRECT CONNECTION FOR A SNAPHAT® TOP WHICH CONTAINS THE BATTERY AND CRYSTAL
Figure 1. 44-pin, Hatless SOIC Package
44 1
SO44 (MT)
Figure 2. 44-pin SOIC Package
SNAPHAT (SH) Crystal/Battery
44 1
SOH44 (MH)
June 2004
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