CD74HC02M Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The CD74HC02M is a high-speed CMOS quad two-input NOR gate in a 14-pin SOIC package with four independent gates rated for 50 pF load capacitance. It operates from 2 V to 6 V supply and delivers 5.2 mA maximum output sink current per gate. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HC02M Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Four independent 2-input NOR gates in one 14-pin SOIC package for dense logic integration
- 2 V to 6 V supply voltage range compatible with 3.3 V and 5 V CMOS and TTL systems
- High-speed CMOS with propagation delay below 10 ns at 5 V and 50 pF load
- 5.2 mA output sink current per gate for direct CMOS bus drive without external buffers
Applications
The CD74HC02M is used for combinational logic functions including signal inversion, enable/disable gating, and RS latch construction in microcontroller peripheral circuits and FPGA interface boards. Its four NOR gates can implement any basic Boolean function through De Morgan transformations, making it a versatile glue-logic building block in communication equipment and industrial control boards. The SOIC-14 package enables automated surface-mount assembly for cost-efficient high-volume production in consumer and automotive electronics.
Specifications
| YTEOL | 0 |
| Family | HC/UH |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | NOR GATE |
| Max I(ol) | 0.0052A |
| Number of Functions | 4 |
| Number of Inputs | 2 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.04mA |
| Prop. Delay@Nom-Sup | 27ns |
| Propagation Delay (tpd) | 135ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD74HC02M:
Frequently Asked Questions
How can two NOR gates from CD74HC02M be configured to build a basic RS latch for a debounce circuit?
Cross-coupling the outputs of two 2-input NOR gates creates an SR latch where setting input S goes high to force Q high, and reset input R goes high to force Q low. With a 10 kΩ pull-up and a push-button switch driving each input, the latch resolves contact bounce within the first gate propagation delay of approximately 7 ns at 5 V, producing a clean digital edge within 10 ns of the initial button press.
What is the maximum output sink current of the CD74HC02M, and does it allow direct LED drive?
Each gate can sink up to 5.2 mA at a VOL below 0.33 V at 4.5 V supply. This is sufficient to drive a 3 mA indicator LED through a 430 Ω series resistor directly from the NOR gate output, eliminating a transistor driver for single-LED status indicators in a low-cost control panel design.
Over what supply voltage range does the CD74HC02M operate, and how does that affect 3.3 V microcontroller interfacing?
The device operates from 2 V to 6 V. At 3.3 V supply the input high threshold is approximately 2.31 V, compatible with standard 3.3 V GPIO outputs from STM32 or nRF52 microcontrollers. No level translator is required when the MCU and CD74HC02M share the same 3.3 V rail, and propagation delay at 3.3 V is typically below 13 ns at a 50 pF load.
For a compact design replacing four discrete NOR functions, how does packing all 4 gates into the CD74HC02M's SOIC-14 save board space?
A single CD74HC02M SOIC-14 occupies about 35 mm² including courtyard, compared to four individual SOT-23-5 single-gate packages that together require roughly 60 mm². Consolidating glue logic into one SOIC-14 also reduces solder joint count from 20 to 14, lowering reflow defect risk and simplifying board inspection during automated optical inspection at production volumes above 10,000 units.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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