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SN74LVTH182502A Datasheet 3.3-v Abt Scan Test Devices

Manufacturer: Texas Instruments

Overview: SN54LVTH18502A, SN54LVTH182502A, SN74LVTH18502A, SN74LVTH182502A 3.3-V ABT SCAN TEST DEVICES WITH 18-BIT UNIVERSAL BUS TRANSCEIVERS SCBS668C − JULY 1996 − REVISED JUNE 2004 D Members of the Texas Instruments SCOPE ™ Family of Testability Products D Members of the Texas Instruments Widebus ™ Family D State-of-the-Art 3.3-V ABT Design Supports Mixed-Mode Signal Operation (5-V Input and Output Voltages With 3.3-V VCC) D Support Unregulated Battery Operation Down to 2.7 V D UBT ™ (Universal Bus Transceiver) bines D-Type Latches and D-Type Flip-Flops for Operation in Transparent, Latched, or Clocked Mode D Bus Hold on Data Inputs Eliminates the Need for External Pullup Resistors D B-Port Outputs of ’LVTH182502A Devices Have Equivalent 25-Ω Series Resistors, So No External Resistors Are Required D patible With the IEEE Standard 1149.1-1990 (JTAG) Test Access Port and Boundary-Scan Architecture D SCOPE ™ Instruction Set − IEEE Standard 1149.1-1990 Required Instructions and Optional CLAMP and HIGHZ − Parallel-Signature Analysis at Inputs − Pseudorandom 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.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The ’LVTH18502A and ’LVTH182502A 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 plex circuit-board assemblies.

Scan access to the test circuitry is acplished via the 4-wire test access port (TAP) interface.

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