74AVC2T45DP-Q100H

Overview

The Nexperia 74AVC2T45DP-Q100H is a dual-bit, dual-supply voltage level translator and transceiver housed in an 8-lead TSSOP package (SOT505-2). It supports bidirectional translation between supply voltages ranging from 0.8 V to 3.6 V on both ports A and B. The device features a direction control input (DIR) for managing data flow and includes IOFF circuitry for partial power-down applications. Qualified to AEC-Q100 Grade 1 standards, it operates within a temperature range of -40 °C to +125 °C.

Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 standards
• IOFF circuitry enables partial power-down mode preventing backflow current
• Bidirectional data transmission controlled by a dedicated DIR pin
• Wide operating temperature range extending to +125 °C

Applications

• Automotive electronic systems requiring voltage level translation
• Partial power-down applications utilizing IOFF functionality
• Interfacing low-voltage nodes such as 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V

Procurement Notes

Verify the specific ordering suffix matches the required package type and temperature grade. Confirm that the DP designation corresponds to the TSSOP8 form factor. Ensure the Q100H suffix aligns with automotive qualification requirements. Cross-reference the manufacturer part number against official Nexperia documentation to validate component authenticity and specifications before procurement.

Selection Notes

Select this component when bidirectional translation between dual supplies within the 0.8 V to 3.6 V range is required. The presence of a DIR pin allows explicit control over data direction, distinguishing it from auto-direction sensing variants. Consider the TSSOP8 package dimensions for PCB layout constraints. Verify that the AEC-Q100 Grade 1 qualification meets the specific reliability targets of the target application environment.

Part Context

This device belongs to the 74AVC2T45-Q100 family of dual-bit translating transceivers. It shares functional characteristics with other members of the series but differs in physical packaging. The DP variant specifically utilizes the TSSOP8 outline, whereas other family members may employ VSSOP, XSON, or leadless packages. All variants maintain identical electrical performance and automotive qualification status.

Replacement Considerations

Substitutes must match the dual-supply voltage range, bidirectional functionality, and AEC-Q100 Grade 1 qualification. Package compatibility requires verifying the TSSOP8 footprint. Electrical parameters such as propagation delay and leakage current should be compared against the original datasheet specifications.