74AVCH1T45DBVRG4

Overview

The SN74AVCH1T45DBVRG4 is a single-bit dual-supply bus transceiver from the Texas Instruments AVCH logic family. It operates with supply voltages ranging from 1.2 V to 3.6 V on both ports A and B, enabling flexible voltage level translation between different logic domains. The device features a propagation delay of 5.6 ns and supports data rates up to 500 Mbps. It is housed in a compact SOT-23-6 package and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Configurable voltage translation between two independent power supply rails for port A and port B
• Bidirectional data transfer capability with non-inverting logic function
• Three-state outputs that minimize bus contention during inactive periods

Applications

• Interfacing low-voltage processors with higher-voltage peripheral devices
• Portable equipment requiring efficient power management across mixed-voltage subsystems
• Consumer electronics utilizing multiple logic families within a single system

Procurement Notes

Verify the G4 suffix indicates RoHS compliance and green material status as per manufacturer specifications. Confirm the SOT-23-6 package dimensions match your PCB footprint requirements. Ensure the operating temperature range meets your environmental design constraints. Cross-reference the datasheet revision date to ensure compatibility with current design standards.

Selection Notes

Select this component when a single-channel bidirectional translator is required for mixed-voltage interfaces. The AVCH series offers optimized performance for high-speed applications compared to standard AVC variants. Consider the SOT-23-6 package size if board space is limited. Verify that the input and output voltage levels fall within the specified 1.2 V to 3.6 V operational window for reliable signal integrity.

Part Context

This part belongs to the SN74AVC(H)1T45 family of single-bit bus transceivers designed for dual-supply applications. It serves as a bridge between different voltage domains, such as 1.8 V and 3.3 V systems. The device is widely used in mobile and handheld devices where power efficiency and small form factors are critical design parameters.

Replacement Considerations

The SN74AVCH1T45DBVR is a compatible alternative without the G4 suffix, offering identical electrical characteristics. Other members of the 74AVCH1T45 family may provide different packaging options or slight parameter variations.