SN74LVC2952APWT

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVC2952APWT 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 and features inputs that accept voltages up to 5.5 V, supporting mixed-mode signal operation on all ports. The device consists of two 8-bit back-to-back registers that store data flowing in both directions between two 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 use as translators in mixed 3.3-V/5-V system environments
• 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

Buffers, Drivers, Receivers, Transceivers Applications

• Octal bus transceivers
• Mixed-mode signal translation
• Partial-power-down applications

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'T' corresponds to the TSSOP-24 package and reel packaging configuration. Confirm the operating temperature range matches the application requirements, as this variant is specified for -40°C to 85°C. Ensure compatibility with the required logic levels and power supply constraints before procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring bidirectional data transfer with storage capabilities between 3.3-V and 5-V systems. The integrated registers allow for data latching during transmission. Consider the 3-state output capability for bus sharing applications. Verify that the 1.65-V to 3.6-V supply voltage range aligns with the target system architecture.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LVC2952A family of octal bus transceivers and registers. It is designed for high-speed data transfer in low-voltage applications. The device provides robust ESD protection and supports various interface standards common in digital communication systems.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVC2952ADW

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 mechanism for storing data in the registers?

Data on the A or B bus is stored in the registers on the low-to-high transition of the clock (CLKAB or CLKBA) input, provided that the clock-enable (CLKENAB or CLKENBA) input is low.