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DM74S473AJ データシート - National ->Texas Instruments

部品番号コンポーネント説明メーカー
DM74S473AJ (512 x 8) 4096-Bit TTL PROM National-Semiconductor
National ->Texas Instruments National-Semiconductor
DM74S473AJ PDF データシート : DM74S473AJ pdf   
DM74S473 image

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 accessÐ45 ns max
   Enable accessÐ30 ns max
   Enable recoveryÐ30 ns max
PNP inputs for reduced input loading
All DC and AC parameters guaranteed over temperature
Low voltage TRI-SAFE™ programming
Open-collector outputs


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