W27C4096 is a high speed, low power electrically erasable and programmable read only memory organized as 262144 × 16 bits that operates on a single 5 volt power supply. The W27C4096 provides an electrical chip erase function.
The W27C4096 is a 256K × 16‑bit electrically erasable and programmable read‑only memory (EPROM) that operates from a single 5 V supply. It offers high‑speed access (120‑150 ns max) and includes both UV‑independent electrical erase and programming functions.
The document provides pin configurations, timing diagrams, DC/AC characteristics, package options, and recommended system decoupling guidelines for designers integrating the device into memory arrays or embedded systems.
| Memory organization | 256K × 16 bits |
|---|---|
| Supply voltage | 5 V (single supply) |
| Access time (max) | 120‑150 ns |
| Standby current (max) | 100 µA |
| Program voltage (VPP) | 12 V |
| Read cycle time | 120‑150 ns |
The chip can be electrically erased in about 100 ms using a suitable EPROM writer.
The standby current is specified as up to 100 µA.