SN74LVCH16245AGQLR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVCH16245AGQLR is a 16-bit (dual-octal) noninverting bus transceiver from the Texas Instruments Widebus family, designed for asynchronous communication between data buses. It operates from 1.65 V to 3.6 V with inputs accepting voltages up to 5.5 V. The device features active bus-hold circuitry and Ioff support for partial-power-down mode. It provides a maximum propagation delay of 4 ns at 3.3 V and supports mixed-mode signal operation on all ports.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation allowing 5-V input/output voltage compatibility with 3.3-V VCC
• Active bus-hold circuitry maintains unused or undriven data inputs at a valid logic state without external resistors
• Ioff feature enables live insertion, partial-power-down mode, and back-drive protection by disabling outputs when powered down

Buffers, Drivers, Receivers, Transceivers Applications

• Electronic Points of Sale
• Test and Measurement equipment
• Wearable Health and Fitness Devices
• Tablets

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package type against the datasheet Device Information table, as the GQL suffix indicates a BGA configuration distinct from standard TSSOP or SSOP variants. Confirm that the ordering suffix matches the required pinout and thermal characteristics for your PCB layout. Ensure the component status is listed as Active Production before finalizing procurement plans.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring bidirectional level translation between 1.65-V and 5.5-V domains within a single system. The dual-octal architecture allows flexible configuration as either one 16-bit or two independent 8-bit transceivers. Consider the GQL package dimensions if space constraints require a compact footprint compared to traditional surface-mount packages.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LVCH16245A series, which is part of Texas Instruments' Widebus family of high-speed bus transceivers. The LVCH series specifically targets low-voltage applications while maintaining 5-V tolerance, bridging the gap between older LVC devices and newer ultra-low-voltage technologies.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVCH16245ADGGR

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle unused data inputs?

The device utilizes active bus-hold circuitry to hold unused or undriven data inputs at a valid logic state, eliminating the need for external pullup or pulldown resistors.

What is the function of the Ioff circuitry?

The Ioff circuitry disables the outputs when the device is in a power-down state, preventing damaging current backflow through the device during partial-power-down or live insertion scenarios.