The Am9128 is a 2048 × 8 static RAM device offered in a 24‑pin DIP package. It features TTL‑compatible inputs and outputs, three‑state buffers, and requires no clock or refresh circuitry, making it suitable for static memory applications.
Key specifications include access times ranging from 70 ns to 200 ns depending on the speed grade, supply voltage up to +55 V, and operating temperature ranges of 0 °C to +70 °C (commercial) or –55 °C to +125 °C (military). Ordering information, pin assignments, and detailed electrical characteristics are provided for design engineers.
| Memory Capacity | 2048 × 8 bits |
|---|---|
| Package Type | 24‑pin DIP |
| Maximum Access Time (ns) | 70‑200 |
| Power‑Down Current | as low as 15 mA |
| Supply Voltage | +5 V (standard) up to +55 V |
| Operating Temperature (Commercial) | 0 °C to +70 °C |
| Operating Temperature (Military/Extended) | –55 °C to +125 °C |
The device uses a standard 24‑pin DIP layout and pin 1 is marked for orientation.
Commercial versions operate from 0 °C to +70 °C, while military/extended versions operate from –55 °C to +125 °C.
The Am9128‑70 variant has a maximum access time of 70 ns.
It operates from a single +5 V supply and supports supply voltages up to +45 V (commercial) or +55 V (military).