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DM74S473AV Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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DM74S473AV Datasheet(HTML) 1 Page - National Semiconductor (TI) |
1 / 6 page TLD9715 November 1990 DM74S473 (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 pro- vided to control the output states When the device is en- abled 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 loca- tions A high may be programmed into any selected location by following the programming instructions Features Y Advanced titanium-tungsten (Ti-W) fuses Y Schottky-clamped for high speed Address access45 ns max Enable access30 ns max Enable recovery30 ns max Y PNP inputs for reduced input loading Y All DC and AC parameters guaranteed over temperature Y Low voltage TRI-SAFETM programming Y Open-collector outputs Block Diagram TLD9715 1 Pin Names A0 – A8 Addresses G Output Enable GND Ground Q0 – Q7 Outputs VCC Power Supply TRI SAFETM is a trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation RRD B30M105Printed in U S A |
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