SN74LVTH2952DW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVTH2952DW is an octal bus transceiver and register manufactured by Texas Instruments, 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. The device supports unregulated battery operation down to 2.7 V, features active bus-hold circuitry to eliminate external pullup/pulldown resistors, and provides Ioff and power-up 3-state support for hot insertion applications.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Dual 8-bit back-to-back registers enable bidirectional data storage between two independent buses.
• Active bus-hold circuitry maintains valid logic levels on floating or unused inputs without external components.
• Ioff and power-up 3-state circuits prevent damaging current backflow and driver conflicts during hot insertion.

Buffers, Drivers, Receivers, Transceivers Applications

• Hot-insertion memory and I/O architectures
• Bidirectional data buffering between 3.3-V and 5-V system environments
• Bus-oriented latch applications requiring data retention

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against the manufacturer's package option addendum to confirm the physical package type (e.g., SOIC-24 DW) and shipping carrier (Tube). Ensure the component meets the required operating temperature range (-40°C to +85°C) and that all unused control inputs are properly terminated to VCC or GND to ensure stable operation.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring simultaneous data latching and bidirectional transfer on dual 8-bit buses. It is suitable for mixed-signal environments where 5-V tolerant inputs are necessary alongside 3.3-V core logic. Consider the SN74LVTH2952DWR variant if tape-and-reel packaging is preferred over tubes for automated assembly processes.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SNx4LVTH2952 family of octal bus transceivers and registers. It is functionally compatible with other LVTH series devices but is distinct from standard bus transceivers due to its integrated dual-register architecture. The 'DW' suffix specifically denotes the 24-pin Small Outline Integrated Circuit (SOIC) package configuration.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVTH2952DWR