74AVC4T774BQX

Overview

The Nexperia 74AVC4T774BQX is a 4-bit dual supply translating transceiver with 3-state outputs, housed in a DHVQFN16 (SOT763-1) package. It supports bidirectional level translation between voltage nodes ranging from 0.8 V to 3.6 V on both VCC(A) and VCC(B). The device achieves maximum data rates of 380 Mbit/s for translations at or above 1.8 V to 3.3 V. It operates within an ambient temperature range of -40 °C to +125 °C and includes IOFF circuitry for partial power-down applications.

Feature Summary

• Bidirectional level translation capability across dual independent supply domains
• IOFF circuitry prevents damaging backflow current during partial power-down states
• High electrostatic discharge protection exceeding 8000 V via Human Body Model standard

Applications

• Interfacing low-voltage logic nodes such as 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V
• Partial power-down mode operations requiring isolation of powered-down buses
• Systems requiring high-speed bidirectional data transmission between disparate voltage domains

Procurement Notes

Verify the specific ordering suffix 'BQ' corresponds to the DHVQFN16 package variant when sourcing. Confirm that the required operating temperature range aligns with the -40 °C to +125 °C specification provided in the product data sheet. Ensure design compatibility with the 3-state output configuration and direction control inputs.

Selection Notes

Select this component for designs requiring flexible voltage translation between any combination of low-voltage nodes within the 0.8 V to 3.6 V range. Consider the DHVQFN16 package dimensions for PCB layout constraints. Evaluate the propagation delay characteristics against system timing requirements, noting variations based on specific VCC(A) and VCC(B) combinations.

Part Context

This device belongs to the 74AVC series of Advanced Very-low-voltage CMOS logic products. It functions as a translating transceiver designed to bridge different voltage levels efficiently. The AVC family emphasizes low power consumption and high noise immunity, making it suitable for modern low-voltage digital systems where multiple supply rails are present.

Replacement Considerations

Check for alternative packages like XQFN16 (74AVC4T774GU) if pinout compatibility allows. Verify functional equivalence with other 4-bit dual-supply translators from the same manufacturer family before substitution.