SCAN18245TSSCX

Buffers, Drivers, Receivers, Transceivers Overview

The SCAN18245TSSCX is a non-inverting transceiver with 3-STATE outputs, compliant with IEEE 1149.1 (JTAG). It features dual 9-bit bytes with separate data inputs and byte-oriented output enable and direction control signals. Operating at 4.5V to 5.5V, it provides TTL-compatible inputs and reduced-swing outputs capable of driving 50 Ω transmission lines. The device includes boundary-scan test logic and a Test Access Port for system verification.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• IEEE 1149.1 Standard Test Access Port and Boundary Scan Architecture compliance
• Dual output enable control signals for independent bus management
• Reduced-swing outputs designed for specific drive requirements
• Integrated CLAMP and HIGHZ instructions for test operations

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented applications requiring bidirectional data flow
• Parity applications utilizing 9-bit data buses
• System-level testing via boundary-scan chains
• Transmission line interfacing with TTL input levels

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the obsolete status of this component before procurement planning. Confirm availability of parameter-equivalent substitutes such as the SN74ABT16863DL series from Texas Instruments. Ensure design updates accommodate potential lead time variations associated with alternative sourcing or lifecycle transitions.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this device for systems requiring JTAG-compliant boundary scan integration alongside high-speed bidirectional buffering. Evaluate the 56-lead SSOP package constraints against board space limitations. Consider the specific drive capabilities for 50 Ω transmission lines when designing interface circuits for reliable signal integrity.

Buffers, Drivers, Receivers, Transceivers Part Context

This component belongs to the SCAN product family, characterized by integrated test access ports. It serves as a bridge between standard logic interfaces and boundary-scan architectures. The device facilitates both functional data transfer and diagnostic testing within complex electronic systems.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute part numbers include SN74ABT16863DL and SN74ABT16863DLR from Texas Instruments. These are listed as parameter-equivalent alternatives in distributor databases.

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle data direction?

Direction pins DIR1 and DIR2 control data flow; LOW enables B to A, while HIGH enables A to B.

What is the function of the G1 and G2 pins?

G1 and G2 are output enable pins that place ports in a high impedance condition when set to HIGH.