74LVC2T45GD,125

Translators, Level Shifters Overview

The Nexperia 74LVC2T45GD,125 is a dual supply translating transceiver with 3-state outputs. It features two 2-bit input-output ports (nA and nB), a direction control input (DIR), and dual supply pins VCC(A) and VCC(B). Both supplies operate between 1.2 V and 5.5 V. Pins nA and DIR reference VCC(A), while nB references VCC(B). A HIGH on DIR enables transmission from nA to nB; LOW enables nB to nA. The device supports partial power-down via IOFF circuitry and enters suspend mode when either supply is at GND.

Translators, Level Shifters Feature Summary

• Enables bidirectional level translation between any low voltage nodes ranging from 1.2 V to 5.5 V.
• Includes IOFF circuitry that disables outputs to prevent damaging backflow current during partial power-down applications.
• Features active bus hold circuitry to maintain unused or floating data inputs at valid logic levels.

Translators, Level Shifters Applications

• Translating between mixed voltage domains such as 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, and 5.0 V.
• Partial power-down systems requiring protection against backflow current.
• Applications utilizing suspended states where one port supply is grounded.

Translators, Level Shifters Procurement Notes

Verify the specific package designation GD corresponds to the XSON-8 configuration in official documentation before procurement. Confirm the component status and availability through authorized Nexperia channels or distributors. Ensure the ordering suffix matches the required temperature range and packaging format for your production line.

Translators, Level Shifters Selection Notes

Select this component when bidirectional translation between disparate low-voltage logic families is required within the 1.2 V to 5.5 V range. Consider the XSON-8 package for space-constrained designs. Evaluate the need for bus hold functionality to manage floating inputs, which distinguishes this variant from standard LVC versions lacking this feature.

Translators, Level Shifters Part Context

This part belongs to the 74LVC/LVCH2T45 family of dual supply translating transceivers manufactured by Nexperia. It shares functional similarities with other members like the 74LVCH2T45GD,125 but differs in specific internal circuitry such as the inclusion of bus hold features. The GD suffix indicates an XSON-8 leadless package suitable for surface mount assembly.

Translators, Level Shifters Replacement Considerations

The 74LVCH2T45GD,125 serves as a direct functional substitute within the same package, differing primarily in the presence of bus hold circuitry. Verify pin compatibility and electrical characteristics against the target application requirements before substitution.