54F/74F189 64-Bit Random Access Memory with TRI-STATE® Outputs

2022-02-16
●General Description
■The 'F189 is a high-speed 64-bit RAM organized as a 16-word by 4-bit array. Address inputs are buffered to minimize loading and are fully decoded on-chip. The outputs are TRI-STATE and are in the high impedance state whenever the Chip Select (CS) input is HIGH. The outputs are active only in the Read mode and the output data is the complement of the stored data.
●Features
■TRI-STATE outputs for data bus applications
■Buffered inputs minimize loading
■Address decoding on-chip
■Diode clamped inputs minimize ringing
■Available in SOIC, (300 mil only)

National Semiconductor

74F18954F18974F189PC74F189SC74F189SJ54F189DL54F189FL54F189LLF18954F74F74F189SCX

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Part#

64-Bit Random Access Memory

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Datasheet

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Please see the document for details

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DIP;Flatpak;LCC;SOIC

English Chinese Chinese and English Japanese

August 1995

TL/F/9493

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