Part Number
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M48T212Y |
Manufacturer
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ST Microelectronics |
Description
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5V/3.3V TIMEKEEPER[ CONTROLLER |
Published
|
Apr 29, 2005 |
Detailed Description
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M48T212Y M48T212V
5V/3.3V TIMEKEEPER® CONTROLLER
s
CONVERTS LOW POWER SRAM into NVRAMs YEAR 2000 COMPLIANT (4-Digit Yea...
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Datasheet
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M48T212Y
|
Overview
M48T212Y M48T212V
5V/3.
3V TIMEKEEPER® CONTROLLER
s
CONVERTS LOW POWER SRAM into NVRAMs YEAR 2000 COMPLIANT (4-Digit Year) BATTERY LOW FLAG INTEGRATED REAL TIME CLOCK, POWER-FAIL CONTROL CIRCUIT, BATTERY and CRYSTAL AUTOMATIC POWER-FAIL CHIP DESELECT and WRITE PROTECTION WATCHDOG TIMER CHOICE of WRITE PROTECT VOLTAGES (VPFD = Power-fail Deselect Voltage): – M48T212Y: 4.
2V ≤ VPFD ≤ 4.
5V – M48T212V: 2.
7V ≤ VPFD ≤ 3.
0V
s s s
SNAPHAT (SH) Battery
s
44 1
SOH44 (MH)
s s
s s
MICROPROCESSOR POWER-ON RESET PROGRAMMABLE ALARM OUTPUT ACTIVE in the BATTERY BACKED-UP MODE PACKAGING INCLUDES a 44-LEAD SOIC and SNAPHAT® TOP (to be Ordered Separately)
Figure 1.
Logic Diagram
s
VCC
VCCSW
DESCRIPT...
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