SN74ABTH18502A - Texas Instruments

SN74ABTH18502A SCAN TEST DEVICES

The ’ABTH18502A and ’ABTH182502A scan test devices with 18-bit universal bus transceivers 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 complex circuit-board assemblies. Scan access to the test circuitry is accomplished via the.

Features

ndom Pattern Generation From Outputs
  – Sample Inputs/Toggle Outputs
  – Binary Count From Outputs
  – Device Identification
  – Even-Parity Opcodes D Packaged in 64-Pin Plastic Thin Quad Flat (PM) Packages Using 0.5-mm Center-to-Center Spacings and 68-Pin Ceramic Quad Flat (HV) Packages Using 25-mil Center-to-Center Spacings SN54ABTH18502A, SN54ABTH182502A . . . HV PACKAGE (TOP VIEW) 1A2 1A1 1OEAB GND 1LEAB 1CLKAB TDO VCC NC TMS 1CLKBA 1LEBA 1OEBA GND 1B1 1B2 1B3 1A3 1A4 1A5 GND 1A6 1A7 1A8 1A9 NC VCC 2A1 2A2 2A3 GND 2A4 2A5 2A6 9 8 7 6 5 4 3 2 1 68 67 66 65 64 63 62 61 10 60 11 59 12 58 .