74ABTH162245DGVRE4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ABTH162245DGVRE4 is a 16-bit noninverting bus transceiver with 3-state outputs, manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range of -40°C to +85°C. The device features two independent 8-bit sections, each with its own direction control (DIR) and output enable (OE) inputs. Propagation delays are typically 2.2 ns from A to B and 2.7 ns from B to A at VCC = 5 V. The A-port outputs include equivalent 25-Ω series resistors and can source or sink up to 12 mA.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Flow-through architecture optimizes PCB layout for high-speed synchronous communication.
• Active bus-hold circuitry maintains valid logic levels on unused or floating data inputs.
• A-port outputs incorporate internal 25-Ω series resistors to minimize signal overshoot and undershoot.
• Distributed VCC and GND pin configuration reduces high-speed switching noise.

Buffers, Drivers, Receivers, Transceivers Applications

• Synchronous two-way communication between data buses
• High-speed memory interface circuits
• Buffering and bidirectional level shifting in 5V digital systems

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the package marking and date code against the manufacturer's latest documentation to confirm authenticity. Ensure the component matches the TVSOP-48 (DGV) physical dimensions and pinout specifications. Confirm that the ordering suffix 'E4' corresponds to the specific lead finish and environmental compliance requirements defined in the current product datasheet.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing 5V synchronous bus interfaces requiring low propagation delay and robust drive capability. The integrated bus-hold eliminates external pull-up or pull-down resistors, simplifying the design. The flow-through pinout facilitates easier routing compared to standard architectures. Verify that the system power supply remains strictly within the 4.5 V to 5.5 V range to ensure proper operation.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the Widebus family of 16-bit bus transceivers from Texas Instruments. It utilizes EPIC-II BiCMOS technology to reduce power dissipation while maintaining high performance. The device is available in multiple packages, including TSSOP, TVSOP, and SSOP, catering to various board space constraints.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74ABTH162245DGGR

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle unused data inputs?

The device includes active bus-hold circuitry that holds unused or floating data inputs at a valid logic level, eliminating the need for external pull-up or pull-down resistors.

What is the purpose of the series resistors in the A-port outputs?

The A-port outputs contain equivalent 25-Ω series resistors designed to reduce overshoot and undershoot during signal transitions, improving signal integrity without requiring external components.