Part Number
|
M48T251V |
Manufacturer
|
ST Microelectronics |
Description
|
5.0 or 3.3V / 4096K TIMEKEEPER SRAM with PHANTOM |
Published
|
Apr 29, 2005 |
Detailed Description
|
M48T251Y M48T251V
5.0 or 3.3V, 4096K TIMEKEEPER® SRAM with PHANTOM
FEATURES SUMMARY s 5.0V OR 3.3V OPERATING VOLTAGE
s
...
|
Datasheet
|
M48T251V
|
Overview
M48T251Y M48T251V
5.
0 or 3.
3V, 4096K TIMEKEEPER® SRAM with PHANTOM
FEATURES SUMMARY s 5.
0V OR 3.
3V OPERATING VOLTAGE
s
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 DESELECT CIRCUITRY CHOICE OF POWER-FAIL DESELECT VOLTAGES: (VPFD = Power-fail Deselect Voltage): – M48T251Y: 4.
25V ≤ VPFD ≤ 4.
50V – M48T251V: 2.
80V
s
s
32 1
s
PMDIP32 (PM)
≤ VPFD ≤ 2.
97V
s s
FULL 10% VCC OPERATING RANGE OVER 10 YEARS’ DATA RETENTION IN THE ABSENCE OF POWER WATCH FUNCTION IS TRANSPARENT TO RAM OPERATION 512K x 8...
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