74AVC4T774RSVRG4

Overview

The SN74AVC4T774RSVRG4 is a four-bit dual-supply bus transceiver manufactured by Texas Instruments. It facilitates bidirectional voltage level translation between two independent power domains, supporting supply voltages from 1.2 V to 3.6 V on both ports. The device operates with a maximum data rate of 380 Mb/s and features a propagation delay of 2.4 ns. It utilizes a 16-pin UQFN package (RSVR) designed for surface-mount applications. The component functions within an ambient temperature range of -40°C to +85°C and includes three-state outputs to prevent bus contention during inactive states.

Feature Summary

• Configurable voltage-level shifting enables seamless communication between different logic families and power domains without external components.
• Bidirectional data transfer capability allows signals to flow freely between Port A and Port B based on the direction control input state.
• Three-state outputs isolate the bus when the device is disabled, ensuring signal integrity in multi-driver environments.

Applications

• Interfacing low-voltage microcontrollers with higher-voltage peripheral devices
• Level translation in portable battery-operated systems requiring multiple voltage rails
• High-speed data bus isolation in embedded computing architectures

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free and RoHS compliance status as per manufacturer documentation. Confirm the UQFN-16 package dimensions match your PCB footprint requirements. Ensure the operating voltage range aligns with your system's power rails. Check for moisture sensitivity level ratings if reflow soldering is required. Validate that the 380 Mb/s speed meets your application's timing constraints.

Selection Notes

Select this component when bidirectional translation between two distinct voltage domains is required for a four-bit wide bus. The UQFN package offers a compact solution for space-constrained designs compared to larger TSSOP alternatives. Consider the 2.4 ns propagation delay for high-speed synchronous or asynchronous interfaces. Ensure the 1.2 V minimum supply voltage supports your lowest logic rail. Verify thermal performance within the specified -40°C to +85°C industrial temperature range.

Part Context

This part belongs to the SN74AVC4T774 series of dual-supply bus transceivers. It shares functional similarities with other members like the SN74AVC4T774RGYR but differs in packaging. The RSVR suffix specifically denotes the 16-pin Ultra Small Quad Flat No-lead package variant. It serves as a bridge component in mixed-voltage digital systems, replacing older single-supply translators that lack true bidirectional flexibility.

Replacement Considerations

SN74AVC4T774RGYR is a verified alternative offering identical electrical characteristics in a 16-VQFN package. SN74AVC4T774PWRG4 provides the same functionality in a TSSOP-16 package for through-hole or larger footprint compatibility. Verify pin-to-pin compatibility and package dimensions before substitution.