This document describes the features and characteristics of the M48T201Y and M48T201V products, including converting low power SRAM into NVRAM, year 2000 compliant, low battery flag, integrated real time clock, power-fail control circuit, battery and crystal, etc.
The M48T201Y and M48T201V are self-contained timekeeping devices that convert low-power SRAM into non-volatile memory (NVRAM). These chips include an integrated real-time clock, programmable alarms, a watchdog timer, and a square wave output. They control up to 512K x 8 of external static RAM via the GCON and ECON signals.
| Supply Voltage (M48T201Y) | 4.5 to 5.5V |
|---|---|
| Supply Voltage (M48T201V) | 3.0 to 3.6V |
| External RAM Capacity | 512K x 8 |
| Package Type | 44-lead SOIC |
They are self-contained devices that include a real time clock, programmable alarms, a watchdog timer, and a square wave output.
It features an integrated real-time clock with power-fail control circuit and battery support to maintain time.