SN74LVCH16245AZRDR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVCH16245AZRDR is a 16-bit noninverting bus transceiver with 3-state outputs from the Texas Instruments LVCH family. It operates on a supply voltage range of 1.65 V to 3.6 V and features inputs tolerant 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 to maintain valid logic states on unused inputs without external resistors.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports asynchronous communication between data buses with mixed-mode signal capabilities for 5-V I/O and 3.3-V VCC systems.
• Active bus-hold circuitry maintains valid logic states on undriven data inputs, eliminating the need for external pullup or pulldown resistors.
• Ioff feature disables outputs during partial-power-down mode to prevent damaging current backflow through the device.

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 suffix 'ZRDR' against the manufacturer's official orderable addendum, as standard documentation lists TSSOP (DGG), TVSOP (DGV), and SSOP (DL) variants. Confirm that the requested part number matches the exact pinout and thermal characteristics defined in the datasheet before finalizing procurement specifications.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring wide voltage translation between 1.65 V and 3.6 V domains with 5.5 V tolerant inputs. Ensure the design accommodates the specified operating temperature range of -40°C to 125°C and utilizes the Ioff functionality if live insertion or partial power-down protection is required.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the Texas Instruments Widebus Family, designed for high-density bus applications. It functions as either two independent 8-bit transceivers or a single 16-bit transceiver. The LVCH series is optimized for low power consumption while maintaining high-speed performance suitable for modern portable and industrial electronics.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVCH16245ADGGR

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle unused data inputs?

The SN74LVCH16245A utilizes active bus-hold circuitry to hold unused or undriven data inputs at a valid logic state, which removes the requirement for external pullup or pulldown resistors.

What is the function of the Ioff circuitry?

The Ioff circuitry supports partial-power-down mode by disabling the outputs when VCC is 0 V, thereby preventing damaging current backflow through the device into the powered-down system.