Texas Instruments 20-SOIC SN74ALS621A-1DW

The SN74ALS621A-1DW is a dual bus transceiver IC from Texas Instruments, part of the ALS logic family. It's designed for bidirectional data communication between two buses and operates with TTL input/output levels. This device features open-collector outputs that can drive multiple loads, allowing it to interface with other logic families. With a propagation delay and high/low output current ratings, it maintains signal integrity at high speeds. The '-1' suffix typically denotes a specific manufacturer's packaging or temperature range variant. Data sheets provide detailed electrical specifications, pinout information, and recommended operating conditions.