The IDT7164 is a 65,536-bit high-speed static RAM organized as 8K x 8. It is fabricated using IDT’s high-performance, high-reliability CMOS technology. It features high-speed address/chip select access time, low power consumption, and battery backup operation.
The IDT7164S and IDT7164L are 64‑Kbit (8K × 8) CMOS static RAM devices offered in both commercial and military grades. They operate from a single 5 V supply, provide TTL‑compatible I/O, three‑state outputs, and low‑power standby modes. The L version includes a 2 V battery‑backup data‑retention capability.
The datasheet details pin configurations, absolute maximum ratings, DC and AC electrical characteristics, timing diagrams for read and write cycles, and available package options such as 28‑pin DIP, SOJ and 600‑mil DIP. Ordering information and compliance with MIL‑STD‑883 Class B are also provided.
| Memory size | 64 Kbit (8K × 8) |
|---|---|
| Supply voltage | 5 V ±10 % |
| Operating temperature (commercial) | 0 °C to +70 °C |
| Operating temperature (military) | -55 °C to +125 °C |
| Address access time (commercial) | 15 ns |
| Address access time (military) | 20 ns to 85 ns |
| Battery backup voltage (L version) | 2 V data‑retention |
| Package options | 28‑pin DIP, 28‑pin SOJ, 600‑mil DIP |
The device operates from a single 5 V supply (±10 %).
Yes, the low‑power (L) version provides battery‑backup data retention at 2 V.
It is offered in 28‑pin DIP, 28‑pin SOJ, and 600‑mil plastic DIP packages.