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74F646B - Octal Transceiver / Register

Download the 74F646B datasheet PDF. This datasheet also covers the 74F646 variant, as both devices belong to the same octal transceiver / register family and are provided as variant models within a single manufacturer datasheet.

General Description

These devices consist of bus transceiver circuits with 3STATE, D-type flip-flops, and control circuitry arranged for multiplexed transmission of data directly from the input bus or from the internal registers.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (74F646_FairchildSemiconductor.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
74F646B Octal Transceiver Register National
74F646 Octal transceiver/register Philips
74F646 Octal Transceiver Register National
74F646A Octal transceiver/register Philips
74F64 4-2-3-2-input AND-OR-invert gate Philips

Other Datasheets by Fairchild (now onsemi)

Part Number Description
74F646 Octal Transceiver/Register
74F64 4-2-3-2-Input AND-OR-Invert Gate
74F640 Octal Bus Transceiver
74F645 Octal Bus Transceiver
74F620 Inverting Octal Bus Transceiver

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
74F646 • 74F646B • 74F648 Octal Transceiver/Register with 3-STATE Outputs March 1988 Revised August 1999 74F646 • 74F646B • 74F648 Octal Transceiver/Register with 3-STATE Outputs General Description These devices consist of bus transceiver circuits with 3STATE, 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.