74AVC1T8128GSX

Overview

The Nexperia 74AVC1T8128GSX is a single dual-supply translating 2-input NOR gate with an enable input, housed in an XSON8 (SOT1203) package. It supports independent supply voltages VCC(A) and VCC(B) ranging from 0.8 V to 3.6 V, enabling translation between low-voltage nodes such as 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V. Inputs A, B, and E are referenced to VCC(A), while output Y is referenced to VCC(B). The device operates within a temperature range of -40 °C to +125 °C.

Feature Summary

• Dual-supply architecture allows flexible voltage translation between independent logic domains.
• IOFF circuitry prevents damaging backflow current during partial power-down applications.
• Suspend mode places the output in a high-impedance state when either supply rail is at ground level.

Applications

• Translating signals between mixed voltage logic nodes
• Partial power-down system management
• Low-voltage interface circuits

Procurement Notes

Verify that the ordering suffix matches GSX for the XSON8 package configuration. Confirm the specific revision status against the latest official datasheet before finalizing design-in decisions. Ensure supply chain sources provide authentic Nexperia components to maintain specified electrical performance and reliability standards.

Selection Notes

Select this component when designing systems requiring translation between asymmetric voltage levels within the 0.8 V to 3.6 V range. The dual-supply capability accommodates distinct logic families on separate rails. The integrated enable input provides additional control over signal propagation, suitable for complex bus architectures.

Part Context

This device belongs to the 74AVC series of advanced CMOS logic products designed for low-voltage operation. The AVC family focuses on high-speed performance and low power consumption, making it suitable for portable electronics and communication interfaces where space and energy efficiency are critical constraints.

Replacement Considerations

Direct substitutes include other single 2-input NOR gates with dual-supply capabilities from the same manufacturer, such as variants within the 74AVC or 74LVC families, provided they match the XSON8 footprint and voltage specifications.

FAQ

How does the IOFF feature function?

The IOFF circuitry disables the output to prevent damaging backflow current through the device when it is powered down.

What determines the Suspend mode state?

If either VCC(A) or VCC(B) is at GND level, the device enters Suspend mode, placing the Y output in a high-impedance OFF-state.