74HCT2G02GD,125

Overview

The Nexperia 74HCT2G02GD,125 is a dual 2-input NOR gate from the HCT logic family. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an ambient temperature range of -40 °C to +125 °C. The device features TTL-compatible input levels and includes internal clamp diodes for interfacing with voltages exceeding VCC. Static characteristics specify a maximum low-level output current of 5.2 mA and a high-level output current of -5.2 mA at VCC = 4.5 V. Dynamic performance indicates a typical propagation delay of 12 ns at VCC = 4.5 V.

Feature Summary

• Features reduced input threshold levels to enable direct interfacing with TTL logic signals.
• Includes input clamp diodes allowing the use of current limiting resistors for voltage levels above VCC.
• Provides high noise immunity and CMOS low power dissipation characteristics.

Applications

• Logic level translation between TTL and CMOS systems
• Signal processing in industrial control environments
• General-purpose digital logic applications

Procurement Notes

Verify the specific package variant against the datasheet, as the GD suffix corresponds to the XSON8U package which was removed from this document revision. Confirm that the ordered component matches the required SOT765-1 (VSSOP8) or SOT505-2 (TSSOP8) footprint if the GD package is obsolete. Ensure compliance with RoHS standards and check for automotive qualification requirements if applicable.

Selection Notes

Select this component when TTL-to-CMOS interface capability is required within the HCT family. The device offers extended temperature operation up to +125 °C suitable for demanding environments. Verify that the 4.5 V to 5.5 V supply voltage range aligns with the system design constraints and that the dual NOR gate configuration meets the circuit logic requirements.

Part Context

This part belongs to the Nexperia 74HCT2G02 series of dual 2-input NOR gates. The datasheet explicitly notes that type numbers with the GD suffix were removed in revision 6. Current production typically utilizes the DC (VSSOP8) or DP (TSSOP8) packages. The HCT series is designed specifically for compatibility with Transistor-Transistor Logic (TTL) inputs while maintaining CMOS performance benefits.

Replacement Considerations

Public confirmed substitute part numbers: 74HCT2G02DC,125; 74HCT2G02DP,125.