Texas Instruments 20-SOIC SN74LS641DW

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The SN74LS641DW is an 8-bit bus transceiver from the Texas Instruments' 74LS series. It's designed for bidirectional data transfer between two buses with separate grounds, functioning within a voltage range of typically 4.75V to 5.25V. This device comes in a PDIP-20 package and is part of the TTL logic family known for its fast switching speeds and low power consumption. The datasheet provides detailed information on pinout, electrical specifications, and application circuits.