Datasheet4U Logo Datasheet4U.com

M48T212A - 3.3V TIMEKEEPER CONTROLLER

General Description

The M48T212A is a self-contained device that includes 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.

Key Features

  • Timing EX tEXPD A tEXPD E1CON tAPD E2CON.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
M48T08Y 64 Kbit 8Kb x 8 TIMEKEEPER SRAM STMicroelectronics
M48T129V 1Mbit (128 Kbit x 8) TIMEKEEPER SRAM STMicroelectronics
M48T129Y 1Mbit (128 Kbit x 8) TIMEKEEPER SRAM STMicroelectronics
M48T37V 256 Kbit (32 Kbit x 8) TIMEKEEPER SRAM STMicroelectronics
M48T37Y 256 Kbit (32 Kbit x 8) TIMEKEEPER SRAM STMicroelectronics

Other Datasheets by STMicroelectronics

Part Number Description
M48T212V 3.3V TIMEKEEPER supervisor
M48T212Y 5V/3.3V TIMEKEEPER[ CONTROLLER
M48T201V 3.3V-5V TIMEKEEPER CONTROLLER
M48T201Y 3.3V-5V TIMEKEEPER CONTROLLER
M48T248V 5.0 or 3.3V / 1024K TIMEKEEPER SRAM

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
M48T212A 3.3V TIMEKEEPER® CONTROLLER PRELIMINARY DATA s CONVERTS LOW POWER SRAM into NVRAMs YEAR 2000 COMPLIANT (4-Digit Year) USES SUPER CAPACITOR or LITHIUM BATTERY (User Supplied) BATTERY LOW FLAG INTEGRATED REAL TIME CLOCK, POWER-FAIL CONTROL CIRCUIT AUTOMATIC POWER-FAIL CHIP DESELECT and WRITE PROTECTION WATCHDOG TIMER WRITE PROTECT VOLTAGES (VPFD = Power-fail Deselect Voltage): – M48T212A: 2.7V ≤ VPFD ≤ 3.0V MICROPROCESSOR POWER-ON RESET PROGRAMMABLE ALARM OUTPUT ACTIVE in the BATTERY BACKED-UP MODE 4 A0-A3 A E EX W G WDI RSTIN1 RSTIN2 X0 XI M48T212A IRQ/FT RST E1CON E2CON VCCSW VOUT s s s s 44 1 SOH44 (MH) s s s s s Figure 1.