SN74LVCH16245AZQLR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVCH16245AZQLR is a 16-bit noninverting bus transceiver from the Texas Instruments Widebus family, designed for asynchronous communication between data buses. It operates within a supply voltage range of 1.65 V to 3.6 V and features inputs that accept voltages up to 5.5 V, supporting mixed-mode signal operation in 5-V input/output environments with 3.3-V VCC. The device provides a maximum propagation delay of 4 ns at 3.3 V and includes active bus-hold circuitry on data inputs to maintain valid logic states without external resistors. It supports partial-power-down mode via Ioff circuitry and offers ESD protection exceeding JESD 22 specifications.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Operates from 1.65 V to 3.6 V with 5.5 V tolerant inputs for mixed-mode applications
• Active bus-hold circuitry eliminates the need for external pullup or pulldown resistors
• Ioff feature supports live insertion, partial-power-down mode, and back-drive protection
• Latch-up performance exceeds 250 mA per JESD 17

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 configuration associated with the ZQL suffix against the manufacturer's orderable addendum. Confirm that the component status is listed as Active Production. Ensure compatibility with the required operating temperature range and moisture sensitivity level ratings before procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring 16-bit bidirectional data transfer with mixed-voltage interface capabilities. It is suitable for systems needing down voltage translation from 5-V domains to lower voltage cores. Consider the thermal characteristics and layout guidelines provided in the datasheet to manage power dissipation and prevent ringing on light loads.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LVCH16245A series, which is part of Texas Instruments' Widebus family of logic integrated circuits. The series is characterized by low voltage CMOS technology optimized for high-speed asynchronous communication. The device functions as either two independent 8-bit transceivers or a single 16-bit transceiver depending on system requirements.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVCH16245ADGGR

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle unused or undriven data inputs?

The device utilizes active bus-hold circuitry on all data inputs to hold them 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 powered down, preventing damaging current backflow through the device and supporting partial-power-down applications.

Can this device be used for voltage translation?

Yes, the inputs accept voltages up to 5.5 V while the device operates from 1.65 V to 3.6 V, allowing it to be used as a translator in mixed 3.3-V and 5-V system environments.