74LVC1T45GW-Q100H

Overview

The Nexperia 74LVC1T45GW-Q100H is a single-bit, dual-supply translating transceiver with three-state outputs designed for bidirectional level translation. It features two 1-bit input-output ports (A and B), a direction control input (DIR), and independent supply pins VCC(A) and VCC(B). Both supplies support voltages from 1.2 V to 5.5 V. The device operates within an ambient temperature range of -40 °C to +125 °C and is housed in a TSSOP6 plastic thin shrink small outline package (SOT363-2).

Feature Summary

• Bidirectional voltage level translation between any low voltage nodes ranging from 1.2 V to 5.5 V.
• IOFF circuitry enables partial power-down mode by disabling outputs to prevent damaging backflow current.
• Automotive product qualification in accordance with AEC-Q100 Grade 1 standards.
• High noise immunity with latch-up performance exceeding 100 mA per JESD 78 Class II.

Applications

• Translating signals between different low voltage logic nodes such as 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, and 5.0 V.
• Partial power-down applications requiring protection against backflow current during suspend modes.
• Automotive electronic systems requiring components qualified to AEC-Q100 Grade 1 standards.

Procurement Notes

Verify the specific suffix 'GW' corresponds to the TSSOP6 (SOT363-2) package configuration required for your design. Confirm that the Q100 designation aligns with automotive grade requirements. Ensure the ordering information matches the exact temperature range specifications needed for your operational environment.

Selection Notes

Select this component when designing circuits that require flexible bidirectional translation across widely varying supply voltages on both sides of the interface. The inclusion of IOFF functionality makes it suitable for systems where partial power-down states are necessary to minimize leakage currents. Verify that the maximum data rate requirements fit within the specified limits for your target voltage translation pairs.

Part Context

This part belongs to the 74LVC1T45-Q100 family of dual supply translating transceivers manufactured by Nexperia. It shares functional similarities with other members of the series but is distinguished by its specific GW package variant and automotive qualification. The device provides a compact solution for interfacing disparate voltage domains in space-constrained applications.

Replacement Considerations

The datasheet lists the 74LVCH1T45GW-Q100 as a related type number within the same family. Designers should verify if active bus hold circuitry is required, as this feature is present in the LVCH variant but not the LVC version.