M48T248Y
M48T248Y is 5.0 or 3.3V / 1024K TIMEKEEPER SRAM manufactured by STMicroelectronics.
FEATURES
SUMMARY
- 5.0V OR 3.3V OPERATING VOLTAGE
Figure 1. 32-pin, DIP Package
- REAL TIME CLOCK KEEPS TRACK OF TENTHS/HUNDREDTHS OF SECONDS, SECONDS, MINUTES, HOURS, DAYS, DATE OF THE MONTH, MONTHS, AND YEARS
- AUTOMATIC LEAP YEAR CORRECTION
VALID UP TO THE YEAR 2100
)- AUTOMATIC SWITCH-OVER AND t(s DESELECT CIRCUITRY
- CHOICE OF POWER-FAIL DESELECT uc VOLTAGES: d(VPFD = Power-fail Deselect Voltage): ro- M48T248Y: 4.25V ≤ VPFD ≤ 4.50V P- M48T248V: 2.80V ≤ VPFD ≤ 2.97V te- FULL 10% VCC OPERATING RANGE le- OVER 10 YEARS’ DATA RETENTION IN
THE ABSENCE OF POWER so- WATCH FUNCTION IS TRANSPARENT TO b RAM OPERATION
O- 128K x 8 NV SRAM DIRECTLY REPLACES Obsolete Product(s) -VOLATILE STATIC RAM OR EEPROM
32 1
PMDIP32 (PM)
February 2005
1/24
M48T248Y, M48T248V
TABLE OF CONTENTS
FEATURES
SUMMARY
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