SN74LVTH2952DGVR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVTH2952DGVR is an octal bus transceiver and register designed for low-voltage 3.3-V VCC operation with TTL interface capability to 5-V systems. It consists of two 8-bit back-to-back registers storing data flowing bidirectionally between buses A and B. Data is latched on the low-to-high clock transition when clock-enable is low, while output-enable controls port access. The device supports unregulated battery operation down to 2.7 V and features active bus-hold circuitry to eliminate external pullup/pulldown resistors.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation with 5-V input/output voltages during 3.3-V VCC operation
• Active bus-hold circuitry maintains valid logic levels on floating or unused data inputs
• Provides Ioff and power-up 3-state functionality to support hot-insertion applications
• Latch-up performance exceeds 500 mA per JESD 17 specification

Buffers, Drivers, Receivers, Transceivers Applications

• Bidirectional data buffering between 3.3-V and 5-V system environments
• Octal bus transceivers requiring storage capabilities in mixed-signal designs
• Hot-insertion applications utilizing power-up 3-state protection

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'DGVR' corresponds to the TVSOP-14 package and tape-and-reel shipping configuration. Confirm that the component meets RoHS compliance standards as indicated in the manufacturer's documentation. Ensure the supply voltage range aligns with the recommended operating conditions of 2.7 V to 3.6 V for proper functionality.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing circuits that require both buffering and storage for octal data paths. It is suitable for applications needing compatibility between 3.3-V logic families and legacy 5-V systems. Consider its bus-hold feature if minimizing external passive components is a design priority.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the Texas Instruments LVTH logic family, which provides low-voltage CMOS technology optimized for 3.3-V operation. The SN74LVTH2952 series integrates bus transceiver functions with dual 8-bit register storage, distinguishing it from standard non-latching transceivers within the same product category.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVTH2952DW

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle floating inputs?

The SN74LVTH2952DGVR includes active bus-hold circuitry that holds unused or floating data inputs at a valid logic level, removing 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 during hot-insertion scenarios.