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Numéro de référence | M48T251Y | ||
Description | 5.0 or 3.3V / 4096K TIMEKEEPER SRAM with PHANTOM | ||
Fabricant | ST Microelectronics | ||
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1 Page
M48T251Y
M48T251V
5.0 or 3.3V, 4096K 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):
– M48T251Y: 4.25V ≤ VPFD ≤ 4.50V
– M48T251V: 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 512K 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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Pages | Pages 24 | ||
Télécharger | [ M48T251Y ] |
No | Description détaillée | Fabricant |
M48T251V | 5.0 or 3.3V / 4096K TIMEKEEPER SRAM with PHANTOM | ST Microelectronics |
M48T251Y | 5.0 or 3.3V / 4096K TIMEKEEPER SRAM with PHANTOM | ST Microelectronics |
US18650VTC5A | Lithium-Ion Battery | Sony |
TSPC106 | PCI Bus Bridge Memory Controller | ATMEL |
TP9380 | NPN SILICON RF POWER TRANSISTOR | Advanced Semiconductor |
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