74AVC4T774GU-Q100X

Overview

The Nexperia 74AVC4T774GU-Q100X is a 4-bit dual supply translating transceiver with 3-state outputs, designed for bidirectional level translation. It operates within a wide voltage range of 0.8 V to 3.6 V on both VCC(A) and VCC(B). The device supports maximum data rates up to 380 Mbit/s depending on voltage conditions. It features individual direction control inputs (DIRn), an output enable input (OE), and IOFF circuitry for partial power-down applications. Qualified to AEC-Q100 Grade 1 standards, it functions reliably from -40 °C to +125 °C.

Feature Summary

• Automotive qualification in accordance with AEC-Q100 (Grade 1)
• Bidirectional level translation between any low voltage nodes
• IOFF circuitry prevents damaging backflow current during power-down
• Suspend mode isolates buses when either supply is at GND

Applications

• Automotive electronic systems
• Interfacing between different logic voltage domains
• Partial power-down applications requiring isolation

Procurement Notes

Verify the specific ordering suffix GU against the required package type XQFN16 (SOT1161-1). Confirm that the Q100 designation aligns with automotive reliability requirements. Ensure the marking code B77 matches the physical component received. Cross-reference the datasheet revision date to confirm technical specifications are current.

Selection Notes

Select this component when independent direction control per bit is required rather than a single global direction pin. Choose the GU package variant for space-constrained designs needing an extremely thin profile. Verify that the target application requires separate VCC(A) and VCC(B) supplies capable of operating within the 0.8 V to 3.6 V range.

Part Context

This part belongs to the 74AVC4T774-Q100 family of translating transceivers. It shares functional characteristics with other variants like the 74AVC4T774BQ-Q100 but differs in packaging. The GU suffix specifically denotes the XQFN16 plastic package, distinguishing it from DHVQFN or TSSOP options within the same logical family.

Replacement Considerations

The 74AVC4T774BQ-Q100 serves as a functional equivalent with identical electrical performance but utilizes a DHVQFN16 package. Substitution requires verifying footprint compatibility due to the difference between XQFN16 and DHVQFN16 mechanical dimensions.