The document introduces the M48T129Y and M48T129V, which are 1Mbit SRAM products. These products feature ultra-low power consumption, real-time clock, battery, and crystal. They have BCD-coded century, year, month, day, date, hours, minutes, and seconds. They support automatic power-fail chip deselect and write protection. In addition, they have software-controlled clock calibration and can retain data for up to 10 years.
The STMicroelectronics M48T129Y/V is a 1Mbit (128Kb x 8) integrated ultra-low power SRAM featuring a real-time clock, power-fail control circuit, and battery/crystal backup. It offers Y2K compliance with BCD-coded century, year, month, day, date, hours, minutes, and seconds.
| Memory Capacity | 128Kb x 8 |
|---|---|
| Operating Voltage (M48T129Y) | 4.5V to 5.5V |
| Operating Voltage (M48T129V) | 3.0V to 3.6V |
| Ambient Operating Temperature | -40 to +70 °C |
| Storage Temperature | -40 to 85 °C |
| Data Retention Time | 10 years |
The power-fail deselect voltage (Vprp) ranges from 4.2V to 4.5V.
The power-fail deselect voltage (Vprp) ranges from 2.7V to 3.0V.
Yes, it is Year 2000 compliant with BCD coded century, year, month, day, date, hours, minutes, and seconds.