74HCT2G02DC,125

Overview

The Nexperia 74HCT2G02DC,125 is a dual 2-input NOR gate in the HCT logic series. It operates within a supply voltage range of 4.5 V to 5.5 V and features TTL input levels for direct interfacing with Transistor-Transistor Logic systems. The device is housed in an 8-lead VSSOP package (SOT765-1) and supports surface mount installation. It provides high noise immunity and low power dissipation typical of CMOS technology. The component is specified for operation across an ambient temperature range from -40 °C to +125 °C.

Feature Summary

• Features reduced input threshold levels compatible with TTL logic signals
• Includes internal clamp diodes on inputs to allow current limiting resistors
• Provides symmetrical output impedance and balanced propagation delays

Applications

• Interfacing between TTL logic sources and CMOS circuits
• Implementing NOR logic functions in mixed-voltage environments
• Signal processing in industrial control systems

Procurement Notes

Verify the specific ordering suffix

Selection Notes

Select this variant when TTL-compatible inputs are required alongside CMOS performance characteristics. The VSSOP package offers space efficiency for dense PCB layouts. Ensure the design accommodates the specified operating temperature range and supply voltage constraints for reliable signal integrity.

Part Context

This component belongs to the Nexperia 74HCT2G02 family of dual 2-input NOR gates. The DC suffix indicates the VSSOP8 plastic very thin shrink small outline package (SOT765-1). The 125 suffix denotes the standard tape and reel packaging format used for automated assembly processes.

Replacement Considerations

The 74HC2G02DC serves as a CMOS-level alternative within the same package. For single-gate implementations, the 74HCT1G02 series offers equivalent functionality in smaller footprints such as UMT5 or SO5.