Texas Instruments 20-SOIC SN74LS645-1DWR

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The SN74LS645-1DWR is an eight-channel bus transceiver IC from Texas Instruments, part of the 74LS logic family. This device provides bidirectional data transmission between two buses and typically comes in a Wide Leadless Chip Carrier (WLCSP) package. The "-1" variant denotes a version with increased maximum specified output current (IOL) compared to the standard SN74LS645. The "DWR" suffix indicates it's supplied in tape and reel packaging for convenient automated assembly in high-volume manufacturing.