53S440 Overview
The 53/63S440 and 53/63S441/A are 1024 x 4 bipolar PROMs featuring low input current PNP inputs, full Schottky clamping with open collector or three-state outputs. The titanium-tungsten fuses store a logical low and are programmed to the high-state. Special on-chip circuitry and extra fuses provide preprogramming testing which assures high programming yields and high reliability.
53S440 Key Features
- 24 ns typical access time
- Reliable Titanium-Tungsten fuses (Ti-W) guarantees
- Low voltage generic programming
- Pin patible with standard SchoHky PROMs
- PNP inputs for low input current
- Open collector and three-state outputs