SN74LVC2952ANSR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVC2952ANSR is an octal bus transceiver and register with 3-state outputs manufactured by Texas Instruments. It operates from a supply voltage range of 1.65 V to 3.6 V. The device features inputs that accept voltages up to 5.5 V, supporting mixed-mode signal operation on all ports. It consists of two 8-bit back-to-back registers for data storage in both directions between bidirectional buses. Data is stored on the low-to-high transition of the clock input when the clock-enable input is low. The maximum propagation delay is 8.2 ns at 3.3 V.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation allowing connection between 3.3-V and 5-V devices
• Includes Ioff circuitry to support partial-power-down mode and prevent damaging current backflow
• Features latch-up performance exceeding 250 mA per JESD 17 standard
• Provides ESD protection exceeding 2000-V human-body model and 1000-V charged-device model

Buffers, Drivers, Receivers, Transceivers Applications

• Mixed-mode signal translation in 3.3-V/5-V system environments
• Octal bus transceiver applications requiring bidirectional data flow
• Partial-power-down applications utilizing Ioff functionality

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package type and manufacturer part number against official documentation before procurement. Confirm RoHS compliance and moisture sensitivity level ratings required for your assembly process. Ensure ordering suffixes match the desired packaging format. Cross-reference the datasheet revision date to ensure compatibility with your design specifications.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring bidirectional data transfer between buses operating at different voltage levels. The integrated register capability allows for data storage during transmission. Consider the 1.65-V to 3.6-V supply range and 5.5-V input tolerance for interface requirements. Evaluate the 8.2 ns propagation delay for timing constraints in your application.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74LVC2952A family of octal bus transceivers and registers. It is designed for low-voltage CMOS applications. The 'ANSR' suffix indicates a specific surface-mount package variant produced by Texas Instruments. It serves as a bridge for data communication between components with differing logic voltage standards.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVC2952ADBR

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle partial-power-down scenarios?

The device includes Ioff circuitry that disables the outputs when powered down, preventing damaging current backflow through the device.

What is the maximum input voltage supported by the device?

The inputs can accept voltages up to 5.5 V, which allows the device to be used as a translator in mixed 3.3-V/5-V system environments.