74AVCH1T45GS,132

Overview

The Nexperia 74AVCH1T45GS,132 is a single-bit, dual-supply voltage level translator and transceiver featuring three-state outputs. It supports bidirectional data translation between voltage domains ranging from 0.8 V to 3.6 V on both ports A and B. The device incorporates active bus hold circuitry to maintain valid logic levels on floating inputs without external resistors. It includes IOFF circuitry for partial power-down applications, preventing damaging backflow currents when supplies are off. The component operates within an ambient temperature range of -40 °C to +125 °C and is housed in a 6-terminal XSON package (SOT1202).

Feature Summary

• Enables bidirectional level translation between independent dual supply voltage domains.
• Integrates active bus hold circuitry to secure unused or floating data inputs at valid logic states.
• Provides IOFF circuitry to disable outputs and prevent backflow current during partial power-down conditions.

Applications

• Bidirectional logic level-shifting between different system voltage domains
• Unidirectional logic level-shifting applications
• Partial power-down mode operations requiring backflow prevention

Procurement Notes

Verify the specific ordering suffix matches the required package variant, as the GS designation corresponds to the SOT1202 XSON6 package. Confirm that the application environment remains within the specified -40 °C to +125 °C operating temperature range. Ensure supply voltages on both ports do not exceed the absolute maximum ratings defined in the datasheet to maintain device integrity.

Selection Notes

Select this component for designs requiring a single-channel bidirectional translator with explicit direction control via the DIR pin. It is suitable for interfacing low-voltage nodes such as 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V. Consider the SOT1202 package dimensions if PCB space is constrained. Verify that the system can manage bus contention precautions due to the absence of a dedicated output enable pin.

Part Context

This part belongs to the 74AVCH series of advanced CMOS logic devices manufactured by Nexperia. The 74AVCH1T45 serves as the single-bit counterpart to the dual-bit 74AVCH2T45. Both share similar electrical characteristics and features but differ in channel count. The GS suffix specifically identifies the extremely thin small outline package variant designed for surface-mount assembly.

Replacement Considerations

The 74AVCH1T45GM and 74AVCH1T45GN are functional equivalents offering alternative package options (SOT886 and SOT1115 respectively) while maintaining identical electrical performance and pinout configurations.