Download the SN74LS173A datasheet PDF.
This datasheet also covers the SN74LS173D variant, as both devices belong to the same 4-bit d-type register family and are provided as variant models within a single manufacturer datasheet.
Full PDF Text Transcription for SN74LS173A (Reference)
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SN74LS173A. For precise diagrams, and layout, please refer to the original PDF.
4-BIT D-TYPE REGISTER WITH 3-STATE OUTPUTS The SN54 / 74LS173A is a high-speed 4-Bit Register featuring 3-state outputs for use in bus-organized systems. The clock is ful...
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ing 3-state outputs for use in bus-organized systems. The clock is fully edge-triggered allowing either a load from the D inputs or a hold (retain register contents) depending on the state of the Input Enable Lines (IE1, IE2). A HIGH on either Output Enable line (OE1, OE2) brings the output to a high impedance state without affecting the actual register contents. A HIGH on the Master Reset (MR) input resets the Register regardless of the state of the Clock (CP), the Output Enable (OE1, OE2) or the Input Enable (IE1, IE2) lines.