This document describes the features and characteristics of Alliance Semiconductor's AS7C31025B 3.3V 128K X 8 CMOS SRAM, including temperature range, organization, access time, power consumption, technology, interface, etc.
The AS7C31025B is a high‑performance 1,048,576‑bit CMOS static RAM organized as 131,072 × 8 bits. It operates from a single 3.3 V supply and offers fast address and output enable access times suitable for high‑performance applications.
The document provides electrical ratings, timing diagrams for read and write cycles, package dimensions, and ordering codes for both commercial and industrial temperature ranges. Key specifications such as supply voltage, power dissipation, and temperature limits are listed, along with recommended operating conditions.
| Supply voltage (Vcc) | 3.0 V – 3.6 V (nominal 3.3 V) |
|---|---|
| Maximum address access time | 10 ns – 20 ns |
| Maximum output enable access time | 5 ns – 8 ns |
| Power dissipation | ≤ 1.0 W |
| Storage temperature (plastic) | -65 °C – +150 °C |
| Package | 32‑pin SOJ (300 mil / 400 mil) |
It operates from 3.0 V to 3.6 V, with a nominal voltage of 3.3 V.
Address access times are 10 ns, 12 ns, 15 ns, or 20 ns, and output enable times are 5 ns, 6 ns, 7 ns, or 8 ns.
The device contains 1,048,576 bits organized as 131,072 × 8‑bit words.