M48T08 and M48T18 are integrated ultra-low power SRAMs with a real-time clock, power-fail control circuit, and battery. They feature byte-wide RAM-like clock access, BCD coded year, month, day, date, hours, minutes, and seconds, typical clock accuracy of ±1 minute per month at 25°C, automatic power-fail chip deselect and write protection, and more.
The document describes the M48T08/18/08Y TIMEKEEPER® RAM, an 8K x 8 non-volatile static RAM and real-time clock available in CAPHAT™ DIP or SOIC packages. It features a built-in quartz crystal and long-life lithium button cell for battery-backed memory retention.
| Memory Capacity | 8K x 8 |
|---|---|
| Operating Temperature Range | 0 to 70 °C |
| Typical Clock Accuracy | +1 minute per month at 25°C |
The device provides an 8K x 8 non-volatile static RAM.
Yes, the CAPHAT™ package houses a quartz crystal and a long-life lithium button cell.
The typical clock accuracy is +1 minute per month at 25°C.