This Schottky memory is organized in the popular 512 words by 8 bits configuration. Memory enable inputs are provided to control the output states. When the device is enabled, the outputs represent the contents of the selectedword. When disabled, the 8 outputs go to the "OFF" or highimpedance 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.