74AVC2T45GF,115

Overview

The Nexperia 74AVC2T45GF,115 is a dual-bit, dual-supply voltage level translator and transceiver housed in an XSON8 package (SOT1116). It supports bidirectional data translation between two independent supply domains, VCC(A) and VCC(B), both ranging from 0.8 V to 3.6 V. The device features a direction control input (DIR) to manage transmission flow between ports A and B. It includes IOFF circuitry for partial power-down applications and operates within a temperature range of -40 °C to +125 °C.

Feature Summary

• Enables bidirectional level translation 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.
• Incorporates IOFF circuitry to disable outputs and prevent damaging backflow current during partial power-down states.
• Features suspend mode that places both ports in a high-impedance OFF-state when either supply voltage is at GND level.

Applications

• Bidirectional logic level-shifting between mixed-voltage systems
• Partial power-down applications requiring isolation of powered-down ports
• Interfacing low-voltage microcontrollers with peripheral devices operating at different supply levels

Procurement Notes

Verify the ordering suffix GF corresponds to the XSON8 package (SOT1116) with dimensions 1.2 x 1.0 x 0.35 mm. Confirm the temperature grade is industrial (-40 °C to +125 °C). Ensure the specific revision of the datasheet matches the production lot requirements for JEDEC compliance and ESD protection specifications.

Selection Notes

Select this component when designing circuits requiring bidirectional translation between two distinct low-voltage domains without auto-direction sensing. The explicit DIR pin requires system-level control for direction switching. Verify that the application can tolerate the enable/disable delays associated with manual direction changes to avoid bus contention.

Part Context

This part belongs to the 74AVC series of translating transceivers designed for high-speed, low-voltage applications. Unlike the 74LVC or 74HC families, the AVC series offers lower propagation delay and wider supply voltage compatibility. The GF suffix specifically denotes the leadless XSON8 package variant optimized for space-constrained PCB layouts.

Replacement Considerations

Direct replacements include other 74AVC2T45 variants with different packages, such as 74AVC2T45GS (XSON8 SOT1203) or 74AVC2T45DC (VSSOP8). Cross-family substitutes like 74LVC2T45 offer similar functionality but with higher propagation delays and different electrical characteristics.