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UM2149 Datasheet PDF

UMC UM2149

UM2149 is a 4096-8it Static Random Access Memory organized 1024 words by 4 bits and is fabricated using UMC's new N-channel Silicon-Gate HMOS technology. It is designed using fully static circuitry, therefore requiring no clock or refreshing to operate. The three-state output facilitates memory expansion by allowing the outputs to be OR-tied to other
Part No. UM2149
Datasheet UM2149 Download
Manufacturer
UMC
Description 1K x 4 High Speed NMOS SRAM
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UM2149 datasheet page 1 preview

FEATURES

● 45 ns maximum address access
● Fully static operation: No clocks or strobes required
● Fast chip select access time: 20ns max.
● Identical cycle and access times
● Single +5V supply
● Industry standard 2114 pinout
● Totally TTL compatible: All inputs and outputs
● Common data input and outputs Ii High density 18-pin package
● Three-state output

GENERAL DESCRIPTION

The UMC Address set-up times are not required and the data is read out non-destructively with the same polarity as the input data. Common data input and output pins provide maximum design flexibility.
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