Description
74S472 (512 x 8) 4096-Bit TTL PROM
General Description
This Schottky memory is organized in the popular 512 words by 8 bits configuration. A memory enable input is provided to control the output states. When the device is enabled, the outputs represent the contents of the selected word. When disabled, the 8 outputs go to the “OFF” or high impedance state.
PROMs are shipped from the factory with lows in all locations. A high may be programmed into any selected location by following the programming instructions.
Features
■ Advanced titanium-tungsten (Ti-W) fuses
■ Schottky-clamped for high speed
Address access down to-35 ns max
Enable access-25 ns max
Enable recovery-25 ns max
■ PNP inputs for reduced input loading
■All DC and AC parameters guaranteed over temperature
■Low voltage TRI-SAFETM programming
■ TRI-STATE® outputs
