M48T248VPM(2003) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

M48T248VPM
(Rev.:2003)

5.0 or 3.3V, 1024K TIMEKEEPER® SRAM with PHANTOM

STMicroelectronics 

M48T248Y

M48T248V

5.0 or 3.3V, 1024K TIMEKEEPER® SRAM with PHANTOM

FEATURES SUMMARY

s 5.0V OR 3.3V OPERATING VOLTAGE

s REAL TIME CLOCK KEEPS TRACK OF

TENTHS/HUNDREDTHS OF SECONDS,

SECONDS, MINUTES, HOURS, DAYS, DATE

OF THE MONTH, MONTHS, and YEARS

s AUTOMATIC LEAP YEAR CORRECTION

VALID UP TO THE YEAR 2100

s AUTOMATIC SWITCH-OVER and DESELECT

CIRCUITRY

s CHOICE OF POWER-FAIL DESELECT

VOLTAGES:

(VPFD = Power-fail Deselect Voltage):

– M48T248Y: 4.25V ≤ VPFD ≤ 4.50V

– M48T248V: 2.80V ≤ VPFD ≤ 2.97V

s FULL 10% VCC OPERATING RANGE

s OVER 10 YEARS’ DATA RETENTION IN THE

ABSENCE OF POWER

s WATCH FUNCTION IS TRANSPARENT TO

RAM OPERATION

s 128K x 8 NV SRAM DIRECTLY REPLACES

VOLATILE STATIC RAM OR EEPROM

Figure 1. 32-pin, DIP Package

32

1

PMDIP32 (PM)

March 2003

Rev. 2.0

1/24

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