63S440 Datasheet (Monolithic Memories) - 1024 x 4 PROM / Ti-W PROM

63S440, 1024 x 4 PROM / Ti-W PROM

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

63S440 Features

* Benefits

* 24 ns typical access time

* Reliable Titanium-Tungsten fuses (Ti-W) guarantees greater than 98% programming yields

* Low voltage generic programming

* Pin compatible with standard SchoHky PROMs

* PNP inputs for low input current

* Open colle