74AVC1T45GS,132

Overview

The Nexperia 74AVC1T45GS,132 is a single-bit dual-supply voltage level translator and transceiver featuring three-state outputs. It enables bidirectional data translation between ports A and B, controlled by a dedicated direction input (DIR). Both supply pins, VCC(A) and VCC(B), support voltages from 0.8 V to 3.6 V, allowing compatibility with various low-voltage logic nodes including 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V. The device achieves maximum data rates of up to 500 Mbit/s during 1.8 V to 3.3 V translation. It incorporates IOFF circuitry for partial power-down applications to prevent backflow currents and operates within an ambient temperature range of -40 °C to +125 °C.

Feature Summary

• Bidirectional level translation capability between two independent dual-supply domains
• IOFF circuitry enabling safe partial power-down mode operation without damaging backflow currents
• High noise immunity with overvoltage tolerant inputs compatible with 3.6 V systems
• Low power CMOS dissipation with suspend mode functionality when supplies are at ground

Applications

• Translating signals between different low-voltage logic nodes in embedded systems
• Partial power-down scenarios requiring isolation of powered-down sections
• Bidirectional data bus interfacing where direction control is managed externally
• Connecting microcontrollers or memory devices operating at distinct supply voltages

Procurement Notes

Verify the package designation SOT1202 corresponds to the required PCB footprint before ordering. Confirm that the thermal performance of the XSON6 package meets system dissipation requirements under maximum load conditions. Ensure ESD handling procedures are followed as specified for leadless packages. Check RoHS compliance status if restricted substance regulations apply to the final assembly environment.

Selection Notes

Select this component when a single-channel bidirectional translator is needed with explicit direction control rather than auto-sensing. Verify that the target application requires separate VCC(A) and VCC(B) supplies within the 0.8 V to 3.6 V range. Consider the 500 Mbit/s speed limit for high-frequency interfaces. Evaluate the SOT1202 package size against available board space constraints compared to other available variants like TSSOP6 or X2SON6.

Part Context

This part belongs to the 74AVC series of advanced low-voltage CMOS logic products designed for high-speed applications. The 74AVC1T45 family provides versatile level shifting solutions for modern electronic systems transitioning between various voltage standards. It complements other Nexperia translators by offering a compact solution for single-bit translation needs in space-constrained designs.

Replacement Considerations

Direct replacements include other 74AVC1T45 variants such as 74AVC1T45GW (TSSOP6), 74AVC1T45GM (XSON6 SOT886), and 74AVC1T45GX (X2SON6). These share identical electrical characteristics but differ in physical package dimensions and thermal properties. Ensure the substitute package fits the existing PCB layout.