SN74LVTH2952DBR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVTH2952DBR is an octal bus transceiver and register manufactured by Texas Instruments. It operates at a supply voltage of 2.7 V to 3.6 V and supports mixed-mode signal operation with 5-V input and output voltages while powered by 3.3 V. The device contains two 8-bit back-to-back registers for bidirectional data storage between buses A and B. Data is latched on the low-to-high clock transition when the clock-enable input is low. It features active bus-hold circuitry, Ioff support for hot insertion, and power-up 3-state functionality.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation allowing 5-V TTL interface compatibility with 3.3-V VCC systems
• Contains two 8-bit back-to-back registers storing data flowing bidirectionally between two buses
• Active bus-hold circuitry maintains valid logic levels on floating or unused data inputs

Buffers, Drivers, Receivers, Transceivers Applications

• Hot-insertion applications requiring Ioff and power-up 3-state support
• Bidirectional bus architectures utilizing separate clocking and enabling controls
• Mixed-voltage system environments interfacing 5-V signals with 3.3-V components

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and tape-and-reel specifications. Ensure that the selected variant matches the required operating temperature range and pinout configuration for your printed circuit board design. Cross-reference the part marking with official datasheets to validate authenticity and production status before procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems that require simultaneous data latching and bidirectional transfer across two distinct buses. The integrated bus-hold feature eliminates the need for external pullup or pulldown resistors, simplifying the schematic. Consider the device's capability to handle 5-V inputs during 3.3-V operation if interfacing with legacy or higher-voltage logic families.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the LVTH logic family, designed specifically for low-voltage 3.3-V applications. It provides a TTL-compatible interface, bridging modern low-power designs with traditional 5-V system environments. The SN74LVTH2952 series integrates both buffering and register functions into a single octal package.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Consult the manufacturer's cross-reference tools for verified alternative part numbers. Do not substitute based solely on pin compatibility; verify electrical characteristics and functional equivalence in the official documentation.