Datasheet4U Logo Datasheet4U.com

M48T212Y Datasheet 5v/3.3v Timekeeper[ Controller

Manufacturer: STMicroelectronics

Overview: M48T212Y M48T212V 5V/3.3V TIMEKEEPER® CONTROLLER s CONVERTS LOW POWER SRAM into NVRAMs YEAR 2000 PLIANT (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.

General 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.

Access to all TIMEKEEPER ® functions and the external RAM is the same as conventional bytewide SRAM.

The 16 TIMEKEEPER Registers offer Century, Year, Month, Date, Day, Hour, Minute, Second, Calibration, Alarm, Watchdog, and Flags.

Key Features

  • age VOH Battery Back-up VOUT Curren.

More Datasheets from STMicroelectronics

Part Number Description
M48T212A 3.3V TIMEKEEPER CONTROLLER
M48T212V 3.3V TIMEKEEPER supervisor
M48T201V 3.3V-5V TIMEKEEPER CONTROLLER
M48T201Y 3.3V-5V TIMEKEEPER CONTROLLER
M48T248V 5.0 or 3.3V / 1024K TIMEKEEPER SRAM
M48T248Y 5.0 or 3.3V / 1024K TIMEKEEPER SRAM
M48T251V 5.0 or 3.3V / 4096K TIMEKEEPER SRAM with PHANTOM
M48T251Y 5.0 or 3.3V / 4096K TIMEKEEPER SRAM with PHANTOM
M48T02 16Kbit (2 Kb x 8) TIMEKEEPER SRAM
M48T08 64 Kbit 8Kb x 8 TIMEKEEPER SRAM

M48T212Y Distributor