Texas Instruments SN74ABT8646 Scan Test Devices With Octal Bus Transceivers And Registers SN74ABT8646DW

The SN74ABT8646DW is a scan test device featuring octal bus transceivers and registers, designed by Texas Instruments. It is part of the SCOPE family of testability products and is compatible with the IEEE Standard 1149.1-1990 for boundary-scan testing. This device operates in a normal mode that is functionally equivalent to the ,ÄôF646 and ,ÄôABT646, allowing for seamless integration into existing designs. The SN74ABT8646DW supports various test operations, including parallel-signature analysis and pseudorandom pattern generation, which can be controlled via a 4-wire test access port (TAP). It features two boundary-scan cells per I/O for enhanced flexibility in testing. The device is characterized for operation within a temperature range of -40¬8C to 85¬8C and utilizes a state-of-the-art EPIC-II BiCMOS design to minimize power dissipation. Data flow is managed through output-enable and direction inputs, with clock and select inputs facilitating data transfer between the A and B buses. The device is available in a 28-pin SOIC package, making it suitable for various applications requiring reliable data transmission and testing capabilities.