74AVC2T45DC-Q100H

Overview

The Nexperia 74AVC2T45DC-Q100H is a dual-bit, dual-supply voltage level translator and transceiver housed in an 8-lead VSSOP package (SOT765-1). It supports bidirectional data translation between two independent power domains, with both VCC(A) and VCC(B) operating within a range of 0.8 V to 3.6 V. The device features a dedicated direction control input (DIR) to manage transmission flow. It is qualified to AEC-Q100 Grade 1 standards for automotive applications and operates across extended temperature ranges from -40 °C to +85 °C and up to +125 °C.

Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 specifications
• Integrated IOFF circuitry enabling partial power-down mode operation
• High noise immunity with low overshoot and undershoot characteristics
• Robust latch-up performance exceeding 100 mA per JESD 78 Class II

Applications

• Bidirectional logic level shifting between mixed-voltage systems
• Unidirectional logic level-shifting applications
• Partial power-down scenarios requiring backflow current prevention

Procurement Notes

Verify the specific suffix 'Q100H' corresponds to the required automotive grade and tape-and-reel packaging configuration. Confirm that the VSSOP-8 package variant matches the design footprint requirements. Ensure the ordering code aligns with the specified temperature range and RoHS compliance status before finalizing procurement orders.

Selection Notes

Select this component when designing interfaces between low-voltage nodes such as 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V. The device is suitable for applications requiring explicit direction control via the DIR pin rather than auto-direction sensing. Consider the VSSOP-8 package constraints and the requirement for separate supply rails for ports A and B during system architecture planning.

Part Context

This part belongs to the 74AVC2T45-Q100 family of dual-supply translating transceivers. It shares functional similarities with other members like the 74AVC2T45DP-Q100 but differs in physical packaging. The DC suffix specifically denotes the VSSOP-8 form factor, distinguishing it from TSSOP or XSON variants within the same electrical specification set.

Replacement Considerations

Direct substitutes include the 74AVC2T45DP-Q100 and 74AVC2T45GT-Q100, which offer identical electrical performance but utilize different package types such as TSSOP8 or XSON8.