This document describes the features and characteristics of the WMF128K8-XXX5 model product from White Electronic Designs Corp., including access times, packaging options, erase architecture, organization, operating temperature ranges, and supply voltage.
The WMF128K8-XXX5 is a 128K × 8 monolithic flash memory offered in a variety of hermetic ceramic and flat‑pack packages. It supports 5 V programming (5 V ± 10 %) and operates over commercial, industrial and military temperature ranges. The device includes embedded erase and program algorithms, TTL‑compatible inputs and CMOS outputs.
The datasheet details absolute maximum ratings, recommended operating conditions, DC and AC electrical characteristics, timing parameters for write/erase/program cycles, and ordering information for each package type. It also lists endurance (≥10 000 cycles), data retention (10 years), and leakage currents.
| Memory organization | 128K × 8 |
|---|---|
| Access time | 150 ns (max) |
| Supply voltage (typical) | 5.0 V |
| Operating temperature | -55 °C – +125 °C |
| Endurance (write/erase cycles) | ≥10 000 cycles |
| Data retention | 10 years (Mil Temp) |
It can operate from –55 °C up to +125 °C.
The flash memory is rated for at least 10 000 write/erase cycles.