74HCT4002N,112

Overview

The NXP USA Inc. 74HCT4002N,112 is a dual 4-input NOR gate from the HCT logic family, housed in a DIP14 plastic dual in-line package (SOT27-1). 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 complies with JEDEC standard JESD7A and features TTL input levels. Static characteristics include high-level output voltages up to 4.4 V at 20 µA load and low-level output voltages as low as 0.1 V at 20 µA load. Dynamic performance specifies propagation delays of 22 ns maximum at 4.5 V.

Feature Summary

• Dual 4-input NOR gate architecture
• TTL-compatible input levels
• Low-power dissipation design
• ESD protection exceeding 2000 V (HBM) and 200 V (MM)

Applications

• Digital logic circuit implementation
• Signal processing applications
• General-purpose computing systems

Procurement Notes

Verify the specific ordering suffix '112' against current NXP documentation to confirm packaging details and availability status. Ensure the DIP14 package variant matches the required mechanical constraints for the target PCB layout. Confirm that the HCT series specifications align with the system's voltage and timing requirements before finalizing procurement.

Selection Notes

Select this component when TTL-compatible inputs are required alongside CMOS noise immunity and low power consumption. The HCT series ensures compatibility with standard TTL logic outputs while offering improved performance over older LS families. Verify that the DIP14 package fits the assembly process and that the operating temperature range meets environmental conditions.

Part Context

This part belongs to the 74HC/HCT4002 family of dual 4-input NOR gates manufactured by NXP Semiconductors. The HCT variant specifically bridges TTL and CMOS technologies, providing robust performance in mixed-logic environments. The DIP14 package offers through-hole mounting options suitable for prototyping and legacy board designs.

Replacement Considerations

Compatible substitutes include other 74HCT4002 variants from different manufacturers, such as those from Texas Instruments or ON Semiconductor, provided they meet the same DIP14 package and electrical specifications. Ensure pinout compatibility and verify that any alternative parts adhere to the same JEDEC standards.