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Nexperia USA Inc. 74HCT02D,653
- Part No.:
- 74HCT02D,653
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74HCT02D,653.pdf
- Description:
- IC GATE NOR 4CH 2-INP 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:6,674
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Product details
Overview
74HCT02D,653 from Nexperia is a quad 2-input NOR gate IC with TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 5 V), 4.5–5.5 V operating supply range, and SO14 (SOT108-1) package. It delivers 11 ns typical propagation delay at 5 V/50 pF, supports -40 °C to +125 °C operation, and integrates input clamp diodes for overvoltage-tolerant interfacing in industrial control logic circuits.
For engineers reviewing the 74HCT02D,653 datasheet, 74HCT02D,653 pinout, 74HCT02D,653 application, or 74HCT02D,653 equivalent, this page provides verified pin functions, real-world timing behavior, thermal derating data for SO14, TTL-level interface compatibility, and validated alternatives for logic-level translation and discrete gate replacement in embedded control systems.
Technical Context
The 74HCT02D,653 implements four independent 2-input NOR gates using CMOS silicon with TTL-compatible input circuitry-ensuring direct replacement of legacy 74LS02 in 5 V systems without level-shifting. Each gate features symmetrical input structure with clamp diodes enabling safe interface to signals exceeding VCC when current-limited.
Its output stage drives ±4.0 mA at VOH ≥ 3.98 V and VOL ≤ 0.26 V under 5 V supply, meeting JEDEC JESD8C and JESD7A standards. Propagation delay (tpd) and transition time (tt) are characterized across temperature and load (CL = 50 pF), with measurement points defined at VM = 1.3 V for inputs and 0.1VCC/0.9VCC for outputs per JEDEC-compliant test setup.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad 2-input NOR gate; each gate performs Y = NOT(A OR B) |
| Supply Voltage Range | 4.5 V to 5.5 V - ensures compatibility with standard 5 V TTL and mixed-voltage digital systems |
| Input Thresholds | VIH = 2.0 V min, VIL = 0.8 V max at VCC = 5 V - enables direct connection to 5 V TTL outputs without level shifters |
| Propagation Delay | 11 ns typ (VCC = 4.5 V, CL = 50 pF) - supports >20 MHz toggle rates in synchronous logic paths |
| Output Drive | ±4.0 mA at VOH ≥ 3.98 V / VOL ≤ 0.26 V - sufficient to drive 10 LS-TTL loads or moderate capacitive bus lines |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood automotive modules and industrial PLC I/O stages |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - withstands handling and board-level ESD events without latch-up |
Pinout & Package
74HCT02D,653 uses the SO14 (SOT108-1) plastic small outline package: 14-pin, 3.9 mm body width, 1.27 mm lead pitch, 1.75 mm max height. Pin 1 is index-marked; pins are numbered counterclockwise from top-left corner when viewed from top with marking side up.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 | 1Y, 2Y, 3Y, 4Y | Active-high NOR outputs - sink/source up to ±4 mA; require external pull-ups only if open-drain emulation needed |
| 2, 5, 8, 11 | 1A, 2A, 3A, 4A | First input per gate - accepts TTL-level signals; clamp diode allows safe overvoltage up to VCC + 0.5 V with current limiting |
| 3, 6, 9, 12 | 1B, 2B, 3B, 4B | Second input per gate - identical electrical behavior to A inputs; no internal differentiation |
| 7 | GND | Ground reference - must be low-impedance connection; decoupling capacitor required within 10 mm of pin 7 and 14 |
| 14 | VCC | Positive supply - 4.5–5.5 V only; total power dissipation derates linearly above 100 °C (10.1 mW/K) |
Key Features
| Feature | Design Value |
|---|---|
| TTL-Compatible Inputs | VIH/VIL thresholds match 74LS family, enabling drop-in replacement without redesign in legacy 5 V systems |
| Overvoltage-Tolerant Inputs | Integrated clamp diodes allow interfacing to signals up to VCC + 0.5 V when series resistors limit current to <20 mA |
| High Noise Immunity | Input hysteresis margin >1.2 V at 5 V supply ensures reliable operation in electrically noisy industrial environments |
| Latch-Up Robustness | Exceeds 100 mA per JESD78 Class II Level B - prevents destructive latch-up during transient overcurrent events |
| Wide Temp Range Support | Guaranteed functionality from -40 °C to +125 °C - suitable for engine control units and motor drive logic stages |
Applications
| Industrial PLC Input Decoding | Automotive Body Control Module Logic |
|---|---|
Use Scenario: Decoding multiple sensor status signals (e.g., door open/closed, seatbelt buckle) into consolidated fault or enable flags before MCU input. IC Role / Device Role / Timing Role: Discrete logic combiner performing active-low NOR-based signal arbitration with sub-15 ns latency. Use Value: Eliminates need for software polling or additional GPIO pins; deterministic hardware response time improves system safety reaction speed. | Use Scenario: Interlocking headlight and fog lamp activation based on ambient light sensor AND manual switch state. IC Role / Device Role / Timing Role: Gate-level safety interlock implementing Y = NOT(A OR B) where A = light sensor HIGH, B = switch ON. Use Value: Prevents simultaneous high-power lamp activation that could overload vehicle battery/fuse; operates reliably at 125 °C under hood. |
| Legacy System TTL-to-CMOS Interface | Power Sequencing Control Logic |
Use Scenario: Adapting outputs from aging 74LSxx logic boards to modern 5 V CMOS microcontrollers with higher noise margins. IC Role / Device Role / Timing Role: Level translator and fanout buffer with TTL-compatible inputs and CMOS rail-to-rail outputs. Use Value: Maintains signal integrity across mixed-technology subsystems without adding delay or requiring external biasing networks. | Use Scenario: Generating delayed enable signals for DC-DC converters based on master power-on reset and thermal OK status. IC Role / Device Role / Timing Role: Asynchronous combinational logic block producing sequenced power-enable pulses via cascaded NOR timing networks. Use Value: Ensures strict power-up order compliance (e.g., core voltage before I/O) without FPGA or dedicated PMIC, reducing BOM cost. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad NOR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HCT02DR | TI part in SO14; identical VIH/VIL, same 11 ns tpd at 5 V, but ICC max = 20 μA vs Nexperia's 40 μA at 125 °C | Approved for automotive AEC-Q100 Grade 1 (-40 to +125 °C); tighter parametric binning for mission-critical use | Select when automotive qualification or TI supply chain continuity is required; otherwise functionally interchangeable |
| 74HCT02PW,118 | Nexperia TSSOP14 variant; same electrical specs but 4.4 mm body width, 0.65 mm pitch, 1.2 mm max height - 30% smaller footprint | Better thermal resistance (7.3 mW/K derating vs SO14's 10.1 mW/K) enables higher sustained power in space-constrained layouts | Select for PCB area optimization or improved thermal performance in dense industrial modules |
Compared with SN74HCT02DR, the 74HCT02D,653 offers broader industrial temp margin at lower cost; versus 74HCT02PW,118, it trades compactness for easier hand-soldering and legacy board compatibility while maintaining identical logic behavior and timing.
Availability
74HCT02D,653 is available at Aetrix Electronics and suitable for industrial PLC input decoding, automotive body control module logic, legacy system TTL-to-CMOS interface, and power sequencing control logic requiring stable component supply across extended temperature ranges.
Supply support for 74HCT02D,653 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Nexperia is a global semiconductor expert focused on essential efficiency technologies, delivering high-performance logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.
The 74HCT02D,653 belongs to Nexperia's 74HCT logic family, engineered for seamless integration into 5 V TTL-compatible systems requiring robust noise immunity, wide temperature operation, and proven reliability in harsh environments.
FAQ
Can 74HCT02D,653 operate at 3.3 V supply?
No. The 74HCT02D,653 is specified only for 4.5–5.5 V operation per its recommended conditions table. At 3.3 V, input thresholds (VIH = 2.0 V min) become non-compliant, and output drive degrades significantly-VOH drops below 2.4 V with 4 mA load, risking logic-level misinterpretation. Use 74HC02 or 74LVC02 for 3.3 V systems.
What is the maximum capacitive load this device can drive reliably?
The 74HCT02D,653 is characterized up to 50 pF load capacitance per output, with 11 ns typical propagation delay at 5 V. Driving >50 pF increases delay nonlinearly and may cause ringing or undershoot; for >100 pF loads, add a series resistor (22–47 Ω) near the output to dampen reflections and maintain signal integrity.
Does this part have internal ESD protection on all pins?
Yes. The 74HCT02D,653 includes HBM ESD protection >2000 V and CDM protection >1000 V on all I/O pins per ANSI/ESDA/JEDEC JS-001 and JS-002 standards. GND and VCC pins also feature robust clamping, but sustained overvoltage beyond Absolute Maximum Ratings (-0.5 V to +7 V) will damage the device regardless of ESD rating.
How does the SO14 package's thermal derating affect continuous operation at 125 °C?
At ambient temperatures above 100 °C, the SO14 package derates total power dissipation linearly at 10.1 mW/K. At 125 °C, Ptot is reduced by 252.5 mW from its 500 mW rating at 25 °C, leaving ~247.5 mW usable. With typical ICC < 20 μA and output loading < 2 mA, thermal limits are not exceeded in standard logic applications.
74HCT02D,653 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 4mA, 4mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 19ns @ 4.5V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
74HCT02D,653 FAQ
1.How can I place an order for 74HCT02D,653 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT02D,653 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 74HCT02D,653 reliable?
The price and inventory of 74HCT02D,653 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT02D,653 is usually 5 days.
3.What payment methods are accepted for 74HCT02D,653?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT02D,653 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT02D,653?
74HCT02D,653 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT02D,653 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 74HCT02D,653?
For technical support, including 74HCT02D,653 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT02D,653 requirements.
6.How does Aetrix verify that 74HCT02D,653 is sourced from the original manufacturer or authorized distributors?
All 74HCT02D,653 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 74HCT02D,653 meets industry standards.
7.What is the process for return or replacement of 74HCT02D,653?
All 74HCT02D,653 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT02D,653, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 74HCT02D,653 part is unused and in its original packaging.
Return procedure for 74HCT02D,653:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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