74ABTH162245ADGG,5

Buffers, Drivers, Receivers, Transceivers Overview

The Nexperia 74ABTH162245ADGG,5 is a 16-bit bus transceiver featuring integrated 30 Ω series termination resistors and 3-state outputs. It operates within a supply voltage range of 4.5 V to 5.5 V using BiCMOS technology. The device supports two independent 8-bit channels with separate output enables (1OE, 2OE) and direction controls (1DIR, 2DIR). It includes IOFF circuitry for partial power-down protection and bus-hold inputs to eliminate external pull-up requirements. Propagation delays range from 1.0 ns to 4.9 ns depending on conditions.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Incorporates integrated 30 Ω series termination resistors for signal integrity
• Features bus-hold data inputs to maintain unused input states without external components
• Provides IOFF circuitry to prevent damaging backflow current during partial power-down
• Supports direct interface with TTL logic levels

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed parallel bus interfaces requiring controlled impedance
• Mixed voltage system interconnects utilizing TTL-compatible signaling
• Partial power-down applications requiring safe isolation when powered off

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix matches the required package variant and temperature rating. Confirm that the 'H' designation in the part number corresponds to the inclusion of bus-hold functionality, as this distinguishes it from the standard non-bus-hold version. Ensure compatibility with the 4.5 V to 5.5 V supply requirement before procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems that require high-speed bidirectional data transfer with built-in termination to reduce reflections. The choice between the standard and 'H' variants depends on whether internal bus-hold circuits are needed to simplify the design by removing external pull-up resistors. Verify that the operating environment stays within the specified -40 °C to +85 °C temperature range.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the 74ABT/ABTH162245A family of 16-bit bus transceivers manufactured by Nexperia. It utilizes BiCMOS technology to achieve high speed and strong output drive capabilities. The ADGG suffix indicates packaging in a TSSOP48 plastic thin shrink small outline package (SOT362-1), suitable for surface-mount assembly.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The 74ABT162245ADGG serves as a functional substitute but lacks the bus-hold feature found in the ABTH variant. Direct replacements must match the 4.5 V to 5.5 V operating voltage and TSSOP48 package constraints.

Buffers, Drivers, Receivers, Transceivers FAQ

What is the difference between the 74ABT162245A and 74ABTH162245A?

The 74ABTH162245A incorporates bus-hold data inputs which eliminate the need for external pull-up resistors to hold unused inputs, whereas the 74ABT162245A does not have this feature.

How does the IOFF circuitry function?

The IOFF circuitry disables the outputs to prevent potentially damaging backflow current through the device when it is powered down, making it suitable for partial power-down applications.