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Product Detailed Parameters
- Description：IC GATE NOR 4CH 2-INP 14SOIC
- Series：74AHCT
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Logic Type：NOR Gate
- Number of Circuits：4
- Number of Inputs：2
- Features：-
- Voltage - Supply：4.5V ~ 5.5V
- Current - Quiescent (Max)：2 µA
- Current - Output High, Low：8mA, 8mA
- Input Logic Level - Low：0.8V
- Input Logic Level - High：2V
- Max Propagation Delay @ V, Max CL：7.5ns @ 5V, 50pF
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Supplier Device Package：14-SOIC
- Package / Case：14-SOIC (0.154", 3.90mm Width)
- Grade：-
- Qualification：-
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Overview
The SN74AHCT02DR is a quadruple 2-input positive-NOR gate manufactured by Texas Instruments. It belongs to the SNx4AHCT02 series, utilizing advanced CMOS technology compatible with standard TTL inputs. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports surface-mount installation in a 14-pin SOIC package. It features low input current and high noise immunity, suitable for automotive and industrial applications requiring robust logic performance.
Feature Summary
- Quadruple 2-input NOR logic functionality
- TTL-compatible input levels via AHCT technology
- High noise immunity and low power consumption
- Automotive qualification available
Applications
- Automotive electronic control units
- Industrial process control systems
- Consumer electronics logic interfaces
- Telecommunications equipment signal processing
Procurement Notes
Verify the specific suffix 'DR' corresponds to the 14-SOIC package and tape-and-reel quantity as defined in the official datasheet. Confirm RoHS compliance status and manufacturing origin through authorized distributors. Ensure the component meets AEC-Q100 requirements if designated for automotive use. Cross-reference the full part number against the manufacturer's latest release notes to avoid obsolete variants.
Selection Notes
Select this component when TTL-level compatibility is required alongside CMOS efficiency. The AHCT series bridges the gap between older TTL standards and modern low-voltage CMOS designs. Consider the 14-SOIC package for PCB space constraints. Verify that the 4.5V minimum supply voltage aligns with the system power rails before integration into the design.
Part Context
This part is part of the SNx4AHCT02 family, which includes various packages and temperature grades. The 'DR' suffix specifically denotes the SOIC-14 package type with reel packaging. It shares logical functionality with other NOR gates in the 74xx series but offers improved speed and lower power dissipation compared to legacy LS or HC technologies.
Replacement Considerations
Direct pin-to-pin replacements include SN74HC02DR for non-TTL input applications. For automotive-grade equivalents, consider SN74AHCT02QDRQ1. Verify voltage tolerance and propagation delay specifications match the original design requirements before substituting.
