This is a document about the ACT-F128K32 high-speed CMOS flash multichip module (MCM). The MCM is designed for military, space, or high reliability applications. It can be organized as a 128K x 32-bit, 256K x 16-bit, or 512K x 8-bit device and is input TTL and output CMOS compatible. The MCM has various access time grades and features low standby current and embedded erase and program algorithms.
The ACT-F128K32 is a high‑speed, 4 Megabit CMOS flash multichip module offered in hermetically sealed ceramic packages (68‑lead CQFP or 66‑lead PGA). It can be organized as 128 K×32, 256 K×16 or 512 K×8 bits and is compatible with TTL inputs and CMOS outputs. The device includes embedded erase and program algorithms, low standby current, and operates over a wide temperature range.
Key characteristics include access times from 60 ns to 150 ns, a single 5 V supply for read/write, 100 k erase/program cycles, and MIL‑PRF‑38534 compliance. Detailed timing diagrams, command sequences, and protection features (low‑Vcc write inhibit, glitch protection, logical inhibit) are provided for system designers.