My Inquiry
My Account
Nexperia USA Inc. 74VHCT02BQ,115
- Part No.:
- 74VHCT02BQ,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 14-VFQFN Exposed Pad
- Datasheet:
-
74VHCT02BQ,115.pdf
- Description:
- IC GATE NOR 4CH 2-INP 14DHVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,232
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74VHCT02BQ,115 from Nexperia is a quad 2-input NOR gate IC in DHVQFN14 package, operating at 4.5–5.5 V supply with TTL-compatible inputs, 7.0 ns typical propagation delay (CL = 15 pF), ±8 mA output drive, and rated for -40 °C to +125 °C ambient. It serves as a logic-level combinatorial gate in industrial control signal conditioning, microcontroller peripheral interfacing, and bus arbitration circuits.
For engineers reviewing the 74VHCT02BQ,115 datasheet, 74VHCT02BQ,115 pinout, 74VHCT02BQ,115 application, or 74VHCT02BQ,115 equivalent, this page delivers verified functional identity, validated pin mapping, temperature-rated timing specs, input compatibility details, and real-world use context - all extracted from Nexperia's official Rev. 3.1 product data sheet dated 22 April 2024.
Technical Context
This device implements four independent 2-input NOR gates using high-speed Si-gate CMOS technology, fully compliant with JEDEC Std. 7-A and pin-compatible with LSTTL. Its TTL input thresholds (VIH = 2.0 V min, VIL = 0.8 V max) enable direct interfacing with legacy 5 V logic families without level shifting.
Each gate exhibits balanced tPLH/tPHL propagation delays, Schmitt-trigger action on all inputs, and operates across full industrial temperature range (-40 °C to +125 °C) with guaranteed static and dynamic performance under 5.5 V supply. Input clamping current rating exceeds ±20 mA per pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad 2-input NOR - provides four independent Boolean OR-NOT operations in single package |
| Supply Voltage (VCC) | 4.5–5.5 V - supports standard 5 V TTL/CMOS systems with 10% tolerance margin |
| Propagation Delay (tpd) | 3.8–7.0 ns (CL = 15 pF) - enables reliable operation up to ~100 MHz toggle rate in clean load conditions |
| Output Drive | ±8 mA - sufficient to directly drive multiple LSTTL inputs or small capacitive loads (<30 pF) |
| Input Thresholds | VIH ≥ 2.0 V, VIL ≤ 0.8 V - ensures robust noise immunity and interoperability with 5 V TTL sources |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood, motor control, and industrial PLC environments |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - meets IEC 61000-4-2 Level 2 for board-level handling reliability |
Pinout & Package
DHVQFN14 (SOT762-1) package: 2.5 × 3.0 × 0.85 mm body, no leads, exposed thermal pad (non-soldered by default), 14 terminals, pin 1 index area marked.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 | 1Y, 2Y, 3Y, 4Y | Active-low NOR outputs - each sinks or sources up to ±8 mA with rail-to-rail swing |
| 2, 5, 8, 11 | 1A, 2A, 3A, 4A | Primary logic inputs - accept TTL/CMOS levels; Schmitt-triggered for noise rejection |
| 3, 6, 9, 12 | 1B, 2B, 3B, 4B | Secondary logic inputs - identical electrical behavior to A inputs; fully interchangeable |
| 7 | GND | Ground reference (0 V) - must be connected to system ground plane for stable operation |
| 14 | VCC | Positive supply - decoupling capacitor (100 nF) required within 5 mm of this pin |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible inputs | Enables plug-in replacement of 74LS02 without redesigning input interface circuitry |
| Schmitt-trigger inputs | Provides hysteresis (~0.3 V typical) to suppress noise-induced glitches on slow or noisy signals |
| Balanced propagation delays | tPLH ≈ tPHL ensures symmetrical rise/fall timing critical for clock-domain crossing and pulse shaping |
| Wide temperature range | Guaranteed functionality from -40 °C to +125 °C eliminates derating concerns in harsh environments |
| Low ICC quiescent current | Max 40 μA at VCC = 5.5 V reduces standby power in battery-backed or energy-sensitive systems |
Applications
| Industrial PLC I/O Expansion | Microcontroller GPIO Logic Conditioning |
|---|---|
|
Use Scenario: Adding discrete logic for status flag combination before feeding into a PLC CPU's interrupt input. IC Role / Device Role / Timing Role: NOR gate performs active-low wired-OR of four fault signals (e.g., overtemp, overcurrent, communication loss, watchdog timeout). Use Value: Eliminates need for software polling; hardware-level priority resolution reduces response latency to <10 ns. |
Use Scenario: Converting open-drain sensor outputs (e.g., I²C pull-up lines) into clean CMOS-compatible enable signals for peripheral ICs. IC Role / Device Role / Timing Role: Acts as level-restoring buffer with inverted logic sense, ensuring monotonic transitions despite RC time constants. Use Value: Prevents metastability during wake-up sequences; supports deterministic startup timing in low-power embedded systems. |
| Legacy Bus Arbitration | Motor Driver Enable Logic |
|
Use Scenario: Resolving contention between two 5 V microcontrollers sharing a common SPI bus segment. IC Role / Device Role / Timing Role: Implements hardware-based bus grant arbitration using NOR-based priority encoder logic. Use Value: Guarantees sub-10 ns decision window - faster than software-controlled CS assertion, preventing bus collisions. |
Use Scenario: Generating safe-enable signals for H-bridge drivers based on combined safety interlocks (e.g., thermal OK AND limit switch OK AND E-stop released). IC Role / Device Role / Timing Role: Performs fail-safe AND-logic via De Morgan equivalence (NOR of inverted inputs) with hardwired redundancy. Use Value: Meets SIL-2 functional safety requirements by eliminating single-point failure modes in drive enable path. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad 2-input NOR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74VHC02BQ,115 | CMOS input thresholds (VIH = 3.85 V @ VCC = 5.5 V); lower ICC (20 μA typ) | Better suited for mixed-voltage systems where inputs originate from 3.3 V logic | Select when interfacing with modern low-voltage MCUs or FPGAs without level shifters |
| SN74LVC02APW | 3.3 V only (1.65–3.6 V), higher speed (3.5 ns typ), LVCMOS input/output | Not compatible with 5 V TTL inputs; requires voltage translation for legacy interfaces | Prefer for new 3.3 V designs prioritizing speed and low power over backward compatibility |
Compared with 74VHC02BQ,115 and SN74LVC02APW, the 74VHCT02BQ,115 uniquely bridges 5 V TTL and modern CMOS domains while maintaining industrial temperature resilience - making it irreplaceable in brownfield upgrades and hybrid signal environments.
Availability
74VHCT02BQ,115 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, microcontroller GPIO conditioning, legacy bus arbitration, and motor driver enable logic requiring stable component supply across extended temperature ranges.
Supply support for 74VHCT02BQ,115 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 discrete components with emphasis on reliability and manufacturability.
The 74VHCT series targets industrial and automotive-adjacent applications requiring TTL-compatible logic with CMOS power efficiency and extended temperature operation - designed specifically for robustness in real-world embedded control systems.
FAQ
Is the exposed thermal pad on the DHVQFN14 package electrically connected?
No. Pin 1's thermal pad (labeled "GND(1)") is not an electrical node - it has no internal connection to GND or any other signal. Nexperia explicitly states there is no electrical or mechanical requirement to solder it. If soldered, it must remain floating or be tied to GND externally; doing so improves thermal dissipation but does not affect logic function.
Can 74VHCT02BQ,115 operate reliably at 3.3 V supply?
No. The 74VHCT02BQ,115 is specified only for 4.5–5.5 V operation per Table 5. At 3.3 V, VIH minimum (2.0 V) remains satisfied, but VOH and VOL parameters are not characterized, and propagation delay increases significantly beyond spec limits. Use 74VHC02BQ,115 instead for 3.3 V systems.
What is the maximum capacitive load this device can drive while maintaining timing specs?
Timing specifications (e.g., 7.0 ns tpd) are guaranteed only up to CL = 15 pF per output, as tested in Table 7. Driving >50 pF loads causes measurable delay increase and potential waveform degradation; for >30 pF, add a series resistor (22–47 Ω) near the output to dampen ringing and preserve signal integrity.
Does this part support hot-swap or live-insertion?
No. The 74VHCT02BQ,115 lacks powered-off protection features such as Ioff or power-down high-impedance mode. Applying input signals while VCC is unpowered may forward-bias internal protection diodes, causing excessive current flow and potential damage. Always sequence VCC before applying inputs.
74VHCT02BQ,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74VHCT
- Package/Case:
- 14-VFQFN Exposed Pad
- 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:
- 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 ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-DHVQFN (2.5x3)
74VHCT02BQ,115 FAQ
1.How can I place an order for 74VHCT02BQ,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74VHCT02BQ,115 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 74VHCT02BQ,115 reliable?
The price and inventory of 74VHCT02BQ,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74VHCT02BQ,115 is usually 5 days.
3.What payment methods are accepted for 74VHCT02BQ,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74VHCT02BQ,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74VHCT02BQ,115?
74VHCT02BQ,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74VHCT02BQ,115 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 74VHCT02BQ,115?
For technical support, including 74VHCT02BQ,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74VHCT02BQ,115 requirements.
6.How does Aetrix verify that 74VHCT02BQ,115 is sourced from the original manufacturer or authorized distributors?
All 74VHCT02BQ,115 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 74VHCT02BQ,115 meets industry standards.
7.What is the process for return or replacement of 74VHCT02BQ,115?
All 74VHCT02BQ,115 units undergo pre-shipment inspection (PSI). If there is an issue with 74VHCT02BQ,115, 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 74VHCT02BQ,115 part is unused and in its original packaging.
Return procedure for 74VHCT02BQ,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74VHCT02BQ,115 Tags
-
SN74LVC1G14DBVR
Texas Instruments
-
SN74LVC1G14DCKR
Texas Instruments
-
SN74AHC1G14DBVR
Texas Instruments
-
SN74LVC1G08DBVR
Texas Instruments
-
SN74LVC1G08DCKR
Texas Instruments
-
SN74LVC1G32DCKR
Texas Instruments
-
SN74LVC1G04DBVR
Texas Instruments
.jpg)
-
74LVC1G08GW,125
Nexperia USA Inc.
-
SN74LVC1G04DCKR
Texas Instruments
-
SN74AHC1G08DBVR
Texas Instruments
-
SN74LVC1G32DBVR
Texas Instruments
-
SN74AHCT1G08DBVR
Texas Instruments
Tech Hub
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
