This manual describes the M48Z2M1Y and M48Z2M1V series integrated ultra low power SRAMs, power-fail control circuits, and batteries.
The M48Z2M1Y and M48Z2M1V are non-volatile static RAMs organized as 2,097,152 words by 8 bits. These devices combine CMOS SRAMs with two internal lithium batteries and a control circuit in a 36-pin plastic DIP package. They provide data retention for 10 years in the absence of power and feature automatic power-fail chip deselect and write protection.
| Capacity | 16 Mbit (2 Mb x 8) |
|---|---|
| Data Retention | 10 years |
| Supply Voltage (M48Z2M1Y) | 4.5 to 5.5 V |
| Supply Voltage (M48Z2M1V) | 3.0 to 3.6 V |
| Package | PLDIP36 |
The device provides 10 years of data retention in the absence of power.
No, the document states these devices are not recommended for new design.
The control circuitry connects the internal batteries to sustain data until valid power returns.