74LVC1T45GS,132

Overview

The Nexperia 74LVC1T45GS,132 is a single-bit dual-supply translating transceiver with three-state outputs housed in an XSON6 package (SOT1202). It enables bidirectional level translation between ports A and B. Both VCC(A) and VCC(B) support voltages from 1.2 V to 5.5 V. The device includes IOFF circuitry for partial power-down applications and active bus hold functionality. It operates within a temperature range of -40 °C to +125 °C.

Feature Summary

• Bidirectional voltage level translation between independent supply domains
• IOFF circuitry prevents backflow current during partial power-down
• Active bus hold maintains valid logic levels on floating inputs
• Three-state outputs controlled by a dedicated direction input

Applications

• Connecting microcontrollers operating at different logic voltage levels
• Interfacing memory modules with varying supply requirements
• Level shifting in mixed-voltage embedded systems
• Bidirectional data transfer between low-power nodes

Procurement Notes

Verify the specific suffix GS corresponds to the SOT1202 XSON6 package configuration. Confirm the component belongs to the standard LVC series rather than the LVCH variant, which dictates the presence or absence of bus hold features. Ensure the ordering code matches the required temperature grade and packaging specifications before finalizing procurement.

Selection Notes

Select this component when interfacing two distinct voltage domains requiring bidirectional data flow. Verify that both supply rails fall within the 1.2 V to 5.5 V operational window. Consider the XSON6 footprint constraints and ensure the design accommodates the necessary thermal dissipation characteristics for the selected ambient temperature range.

Part Context

This part belongs to the 74LVC/LVCH1T45 family of dual-supply translating transceivers. The GS suffix identifies the specific XSON6 (SOT1202) surface-mount package variant. It shares functional similarities with other members of the series but differs in physical dimensions and pinout orientation relative to alternative packages like TSSOP6 or standard XSON6.

Replacement Considerations

Substitutes include 74LVCH1T45GS,132 for identical functionality with added bus hold features. Other compatible variants are 74LVC1T45GN,132 and 74LVC1T45GM,132, though these utilize different package footprints.