This document describes the features and characteristics of the M48Z08 and M48Z18 5 V, 64 Kbit (8 Kb x 8) ZEROPOWER® SRAMs.
The M48Z08 and M48Z18 are 8 K x 8 non-volatile static RAMs designed to be pin and function compatible with JEDEC standard 8 K x 8 SRAMs. These devices integrate an ultra-low power SRAM with a power-fail control circuit and a self-contained battery in a 28-pin CAPHAT DIP package to provide non-volatile memory storage.
| Memory Size | 64 Kbit (8 Kb x 8) |
|---|---|
| Package Type | 28-pin plastic DIP, battery CAPHAT™ |
| Operating Temperature Range | 0 to 70 °C |
| READ cycle time | 100 ns |
| WRITE cycle time | 100 ns |
| Battery Storage Life | at least 11 years |
M48Z08 operates with VCC = 4.75 to 5.5 V and VPFD = 4.5 to 4.75 V, while M48Z18 operates with VCC = 4.5 to 5.5 V and VPFD = 4.2 to 4.5 V.
When VCC falls below approximately 3 V, the control circuitry connects the internal battery to maintain data until valid power returns.
Yes, it is pin and function compatible with JEDEC standard 8 K x 8 SRAMs and fits into many ROM, EPROM, and EEPROM sockets.