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54F648 - Octal Transceiver/Register

This page provides the datasheet information for the 54F648, a member of the 54F646 Octal Transceiver/Register family.

Datasheet Summary

Description

These devices consist of bus transceiver circuits with TRISTATE D-type flip-flops and control circuitry arranged for multiplexed transmission of data directly from the input bus or from the internal registers Data on the A or B bus will be clocked into the registers as the appropriate clock pin goes

Features

  • Y Independent registers for A and B buses Y Multiplexed real-time and stored data Y ’F648 has inverting data paths Y ’F646 ’F646B have non-inverting data paths Y ’F646B is a faster version of the ’F646 Y TRI-STATE outputs Y 300 mil slim DIP Y Guaranteed 4000V minimum ESD protection Commercial 74F646SPC 74F646SC (Note 1) 74F646MSA (Note 1) 74F646BSPC 74F646BSC (Note 1) 74F648SPC 74F648SC (Note 1) Military 54F646DM (Note 2) 54F646FM (Note 2) 54F646LM (Note 2) 54F648SDM (Note 2) 54F648FM (Note 2).

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Datasheet Details

Part number 54F648
Manufacturer National Semiconductor
File Size 399.28 KB
Description Octal Transceiver/Register
Datasheet download datasheet 54F648 Datasheet
Additional preview pages of the 54F648 datasheet.

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Full PDF Text Transcription

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Obsolete 54F 74F646  74F646B  54F 74F648 Octal Transceiver Register with TRI-STATE Outputs December 1994 54F 74F646  74F646B  54F 74F648 Octal Transceiver Register with TRI-STATE Outputs General Description These devices consist of bus transceiver circuits with TRISTATE D-type flip-flops and control circuitry arranged for multiplexed transmission of data directly from the input bus or from the internal registers Data on the A or B bus will be clocked into the registers as the appropriate clock pin goes to a high logic level Control G and direction pins are provided to control the transceiver function In the transceiver mode data present at the high impedance port may be stored in either the A or the B register or in both The select controls can multiplex stored and real-time (trans
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