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M48T212Y - 5V/3.3V TIMEKEEPER[ CONTROLLER

Datasheet Summary

Description

The M48T212Y/V are self-contained devices that include a real time clock (RTC), programmable alarms, a watchdog timer, and two external chip enable outputs which provide control of up to four (two in parallel) external low-power static RAMs.

Features

  • age VOH Battery Back-up VOUT Curren.

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Datasheet Details

Part number M48T212Y
Manufacturer STMicroelectronics
File Size 150.07 KB
Description 5V/3.3V TIMEKEEPER[ CONTROLLER
Datasheet download datasheet M48T212Y Datasheet
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Full PDF Text Transcription

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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.
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