74ALVCH16245GRDR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ALVCH16245GRDR is a 16-bit (dual-octal) noninverting bus transceiver with 3-state outputs manufactured by Texas Instruments. It operates from a supply voltage range of 1.65 V to 3.6 V and features a maximum propagation delay of 3 ns at 3.3 V. The device provides ±24-mA output drive capability and includes active bus-hold circuitry on data inputs to eliminate the need for external pullup or pulldown resistors. Packaged in a Microstar Junior BGA (GRD) with 54 pins, it supports asynchronous communication between two data buses.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Active bus-hold circuitry maintains valid logic states on unused or undriven inputs without requiring external resistors
• Designed for asynchronous communication between two data buses using direction-control and output-enable inputs
• Latch-up performance exceeds 250 mA per JESD 17 standard requirements

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous communication between two data buses
• Memory and memory mapping
• Clock drivers and buffered oscillators

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package marking VH245 corresponds to the GRD Microstar Junior configuration. Confirm that the orderable part number matches the required tape and reel quantity of 1000 units. Ensure the design accounts for the 54-pin terminal assignments provided in the datasheet.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when a 16-bit widebus transceiver is required for low-voltage applications between 1.65 V and 3.6 V. The GRD package offers a compact footprint suitable for high-density designs. Consider the 3 ns propagation delay and ±24 mA drive strength for signal integrity requirements.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the Texas Instruments Widebus family of logic ICs. It is designed as a 16-bit version of the octal bus transceiver architecture, providing dual independent control sections within a single package. The GRD suffix indicates the specific Microstar Junior BGA packaging variant.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74ALVCH16245ZRDR

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle unused inputs?

The input circuitry features active bus-hold circuitry that holds unused or undriven inputs at a valid logic state, eliminating the need for external pullup or pulldown resistors.

What is the function of the DIR and OE inputs?

The direction-control (DIR) input activates either the B-port or A-port outputs, while the output-enable (OE) input places both ports into a high-impedance mode when asserted high.