74ALVCH32973 latch equivalent, 16-bit bus transceiver and transparant d-type latch.
direction (1DIR, 2DIR), latch enable (1LOE, 2LOE), transceiver output enable (1TOE, 2TOE) and latch enable (1LE, 2LE) control inputs; four 8-bit transceiver ports (1An, 2.
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