SN54ABT8646 Overview
The ’ABT8646 and scan-test devices with octal bus transceivers and registers are members of the Texas Instruments SCOPE testability integrated-circuit family. This family of devices supports IEEE Standard 1149.1-1990 boundary scan to facilitate testing of plex circuit-board assemblies. Scan access to the test circuitry is acplished via the 4-wire test access port (TAP) interface.