SN74ABTH16460DLR

Specialty Logic Overview

The SN74ABTH16460DLR is a 56-pin SSOP multiplexed registered transceiver from the Widebus family. It operates on a 4.5 V to 5.5 V supply with an industrial temperature range of -40°C to +85°C. The device features high-drive outputs capable of -32 mA IOH and 64 mA IOL, supporting clock frequencies up to 160 MHz. Propagation delays range from 2 ns to 7.7 ns depending on the signal path. It includes active bus-hold circuitry for data inputs and maintains a high-impedance state during power-up.

Specialty Logic Feature Summary

• Provides four-to-one multiplexing or demultiplexing capabilities between separate data paths and a single data path
• Integrates internal storage latches and flip-flops for address and data information retention
• Features active bus-hold circuitry on data inputs to maintain valid logic levels without external resistors
• Ensures high-impedance states during power-up and power-down sequences

Specialty Logic Applications

• Multiplexing and demultiplexing of address and data information in microprocessor applications
• Bus-interface applications requiring multiple data path selection
• Memory-interleaving applications

Specialty Logic Procurement Notes

Verify the specific package variant (DL) against current datasheet revisions. Confirm that the operating temperature range meets system requirements. Ensure control pins are properly terminated to prevent floating states. Check for updated availability status as product lifecycles may change.

Specialty Logic Selection Notes

Select this component when designing systems that require routing four distinct 4-bit data streams onto a single bus. The integrated registers allow for flexible timing control via latch-enable and clock signals. Consider the high-drive output capability for driving heavy capacitive loads or long traces.

Specialty Logic Part Context

This device belongs to Texas Instruments' Widebus family, utilizing EPIC-IIB BiCMOS design technology. It is part of the SN74ABTH series, which offers high-speed performance with reduced power dissipation compared to standard logic families. The DL suffix indicates a plastic shrink small-outline package.

Specialty Logic Replacement Considerations

SN54ABTH16460WD

Specialty Logic FAQ

How does the device handle unused or floating data inputs?

Active bus-hold circuitry is provided on the A and B ports to hold unused or floating data inputs at a valid logic level, eliminating the need for external pullup or pulldown resistors.

What is the maximum operating frequency?

The device supports a maximum clock frequency of 160 MHz under recommended operating conditions.

How is the high-impedance state managed during power transitions?

The device enters a high-impedance state when VCC is between 0 and 2.1 V. To ensure this state above 2.1 V, the OE pin should be tied to VCC through a pullup resistor.