Texas Instruments 20-SOIC SN74ALS245A-1DWRG4

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The SN74ALS245A-1DWRG4 is a quad bi-directional bus transceiver IC from Texas Instruments, part of the 74ALS family, which provides data transmission between two buses in either direction. It features three-state outputs enabling high impedance when controlled by an enable pin, making it suitable for bus-oriented systems. The device has non-inverting buffers with each pair designed to be used as a full-duplex bidirectional line driver, supporting standard TTL voltage levels. The "-1" signifies the specific variant and "DWRG4" refers to the package type and temperature range, indicating a wide-body SOIC (Small Outline Integrated Circuit) package with specified operating conditions.