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Texas Instruments MM74HC02J — Signal Isolation
Texas Instruments

MM74HC02J 74HC Quad 2-Input NOR Gate, 14-CDIP, Active

MPNMM74HC02J
End of Life

Fairchild 74HC series, MM74HC02J, Logic Type NOR Gate, 4 Circuits, 2 Inputs, 2V ~ 6V Supply, -40°C ~ 85°C, Through Hole, 14-CDIP (0.300", 7.62mm).

$0.84Ref. price · indicative, final on quote
MM74HC02J datasheet
Packaging14-CDIP (0.300", 7.62mm)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
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Specifications

MM74HC02J Technical Specifications
ParameterValue
Series74HC
Logic typeNOR Gate
Mounting typeThrough Hole
Voltage2V ~ 6V
Current - quiescent2 µA
Current - output high, low5.2mA, 5.2mA
Number of inputs2
Operating temperature-40°C ~ 85°C
PackageBulk
Case14-CDIP (0.300\", 7.62mm)
Number of circuits4
Input logic level - low0.5V ~ 1.8V
Input logic level - high1.5V ~ 4.2V
Max propagation delay @ v, max CL15ns @ 6V, 50pF

Product details

Quad 2-input NOR gate in hermetic CDIP

The Fairchild MM74HC02J is a 74HC-series quad 2-input NOR gate in a 14-lead ceramic DIP. It integrates four independent NOR gates, each with two inputs. Supply range runs from 2 V to 6 V. Quiescent current is 2 µA maximum.

What the ratings mean for your BOM

The 15 ns propagation delay at 6 V and 50 pF load is typical for 74HC at this supply. The 5.2 mA output drive is symmetric high and low. Input logic thresholds are CMOS-compatible: low at 0.5 V to 1.8 V, high at 1.5 V to 4.2 V.

Frequently asked questions

What is the pinout of MM74HC02J?

The MM74HC02J follows the standard 14-pin DIP pinout for a quad 2-input NOR gate: pin 7 is GND, pin 14 is VCC. Each of the four gates has its inputs on pins 1-2, 4-5, 9-10, and 12-13, with outputs on pins 3, 6, 8, and 11 respectively. The datasheet PDF provides the full pin diagram.

What is the closest functional equivalent to MM74HC02J?

The SN74HC21N from TI is a quad 2-input AND gate in the same 14-DIP footprint and 74HC family, but the logic function is AND, not NOR. For a direct NOR replacement, the MM74HC02J itself is the active part; no pin-compatible NOR substitute from another manufacturer is listed in the cross-reference data.