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Contents

README

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U74HC02G

UTC(Unisonic Tech) · Logic Gates · SOP-14

U74HC02G from UTC(Unisonic Tech), in a SOP-14. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 1Y output Output Y of NOR gate 1 (Y=A+B in positive logic), with output current limited to ±25mA absolute maximum.
2 1A input Input A of NOR gate 1, with input leakage current limited to ±100nA maximum.
3 1B input Input B of NOR gate 1, with input leakage current limited to ±100nA maximum.
4 2Y output Output Y of NOR gate 2 (Y=A+B in positive logic), with output current limited to ±25mA absolute maximum.
5 2A input Input A of NOR gate 2, with input leakage current limited to ±100nA maximum.
6 2B input Input B of NOR gate 2, with input leakage current limited to ±100nA maximum.
7 GND power_in Ground reference for the device, 0V.
8 3A input Input A of NOR gate 3, with input leakage current limited to ±100nA maximum.
9 3B input Input B of NOR gate 3, with input leakage current limited to ±100nA maximum.
10 3Y output Output Y of NOR gate 3 (Y=A+B in positive logic), with output current limited to ±25mA absolute maximum.
11 4A input Input A of NOR gate 4, with input leakage current limited to ±100nA maximum.
12 4B input Input B of NOR gate 4, with input leakage current limited to ±100nA maximum.
13 4Y output Output Y of NOR gate 4 (Y=A+B in positive logic), with output current limited to ±25mA absolute maximum.
14 VCC power_in Positive supply, 2V to 6V recommended operating range, with absolute maximum rating of 7V.

Key specifications

Parameter Value
Manufacturer UTC(Unisonic Tech)
Package SOP-14
Category Logic
Pins 14

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply Voltage VCC -0.5 7 V 3
Input Clamp Current IIK -20 20 mA 3
Output Clamp Current IOK -20 20 mA 3
Output Current IOUT -25 25 mA 3
VCC or GND Current ICC -50 50 mA 3
Storage Temperature TSTG -65 150 °С 3
Junction to Ambient (SOP-14) θJA 86 °C/W 3
Supply Voltage VCC 2 6 V 3
Input Voltage VIN 0 V max is VCC 3
Output Voltage VOUT 0 V max is VCC 3
Input Transition Rise or Fall Rate tR, tF 1000 ns VCC=2V 3
Input Transition Rise or Fall Rate tR, tF 500 ns VCC=4.5V 3
Input Transition Rise or Fall Rate tR, tF 400 ns VCC=6V 3
Operating Temperature TA -40 125 °С 3
High-Level Input Voltage VIH 1.5 V VCC=2V 3
High-Level Input Voltage VIH 3.15 V VCC=4.5V 3
High-Level Input Voltage VIH 4.2 V VCC=6V 3
Low-Level Input Voltage VIL 0.5 V VCC=2V 3
Low-Level Input Voltage VIL 1.35 V VCC=4.5V 3
Low-Level Input Voltage VIL 1.8 V VCC=6V 3
High-Level Output Voltage VOH 1.9 1.998 V VCC=2V, IOH 20µA, VIN= VIH or VIL 3
High-Level Output Voltage VOH 4.4 4.499 V VCC=4.5V, IOH=20µA 3
High-Level Output Voltage VOH 5.9 5.999 V VCC=6V, IOH=20µA 3
High-Level Output Voltage VOH 3.98 4.3 V VCC=4.5V, IOH=4mA 3
High-Level Output Voltage VOH 5.48 5.8 V VCC=6V, IOH=5.2mA 3
Low-Level Output Voltage VOL 0.002 0.1 V VCC=2V, IOL=20µA 3
Low-Level Output Voltage VOL 0.001 0.1 V VCC=4.5V, IOL=20µA 3
Low-Level Output Voltage VOL 0.17 0.26 V VCC=4.5V, IOL=4mA 3
Low-Level Output Voltage VOL 0.15 0.26 V VCC=6V, IOL=5.2mA 3
Input Leakage Current II(LEAK) -100 0.1 100 nA VCC=6V, VIN=VCC or GND 3
Quiescent Supply Current IQ 2 µA VCC=6V, VIN=VCC or GND, IOUT=0 3
Input Capacitance CIN 3 10 pF VCC=2V~6V 3
Propagation delay from Input(A or B) to Output(Y) tPLH, tPHL 45 90 ns VCC=2V, CL=50pF 4
Propagation delay from Input(A or B) to Output(Y) tPLH, tPHL 9 18 ns VCC=4.5V, CL=50pF 4
Propagation delay from Input(A or B) to Output(Y) tPLH, tPHL 8 15 ns VCC=6V, CL=50pF 4
Output Transition Time tT 38 75 ns VCC=2V 4
Output Transition Time tT 8 15 ns VCC=4.5V 4
Output Transition Time tT 6 13 ns VCC=6V 4
Power Dissipation Capacitance CPD 22 pF No Load 4

CAD (KiCad official)

  • Symbol: U74HC02G
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOP-14 (KiCad packages3D, STEP)
  • 3D model files: u74hc02g-etched.step / u74hc02g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); u74hc02g.step / u74hc02g.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: UTC(Unisonic Tech) datasheet (5 pp, sha256 6273e83a01c02b64, retrieved 2026-10-27, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF