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NXP Semiconductors 74AHCT02PW,112
- Part No.:
- 74AHCT02PW,112
- Manufacturer:
- NXP Semiconductors
- Category:
- Gates and Inverters
- Package:
- -
- Datasheet:
-
74AHCT02PW,112.pdf
- Description:
- IC GATE NOR 4CH 2-INP 14-TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:16,113
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Product details
Overview
74AHCT02PW,112 from Nexperia is a quad 2-input NOR gate IC in TSSOP14 package, designed for TTL-level input compatibility and high-speed CMOS logic interfacing in industrial control and digital signal routing. It operates from 4.5 V to 5.5 V, delivers propagation delay as low as 3.8 ns (CL = 15 pF), supports -40 °C to +125 °C ambient range, and features Schmitt-trigger inputs for noise immunity in noisy environments.
For engineers reviewing the 74AHCT02PW,112 datasheet, 74AHCT02PW,112 pinout, 74AHCT02PW,112 application, or 74AHCT02PW,112 equivalent, this page provides verified functional identity, validated pin mapping, temperature-rated performance data, and direct alternatives for logic-level translation and gate-based signal conditioning.
Technical Context
The 74AHCT02PW,112 implements four independent 2-input NOR gates using Si-gate CMOS technology with TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V). Each gate exhibits balanced tPLH/tPHL propagation delays and drives ±8 mA output current under defined load conditions.
Its Schmitt-trigger inputs accept overvoltage signals up to 7.0 V, enabling robust interfacing with mixed-voltage systems. The device complies with JEDEC standard No. 7-A and is rated for operation across -40 °C to +125 °C with total power dissipation up to 500 mW (derated above 81 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad 2-input NOR - four independent gates, each performing logical NOR (Y = NOT(A OR B)) |
| Supply Voltage Range | 4.5 V to 5.5 V - ensures compatibility with standard 5 V TTL and mixed-signal systems |
| Propagation Delay (tpd) | 3.8 ns (typ) at VCC = 5 V, CL = 15 pF - enables reliable timing in ≤100 MHz synchronous logic paths |
| Input Thresholds | VIH = 2.0 V min, VIL = 0.8 V max - guarantees clean recognition of TTL logic levels without level-shifting |
| Output Drive | ±8 mA at VOH/VOL - sufficient to drive multiple LSTTL loads or interface directly with microcontroller GPIOs |
| Operating Temperature | -40 °C to +125 °C - qualified for extended industrial and under-hood embedded applications |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - enhances board-level robustness during handling and system integration |
Pinout & Package
TSSOP14 plastic thin shrink small outline package (SOT402-1); 14 leads; body width 4.4 mm; 0.65 mm lead pitch; exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1Y | Output of Gate 1 - active-low NOR result; sinks/sourcing capability supports fan-out ≥10 LSTTL |
| 2 | VCC | Positive supply rail - must be decoupled locally (e.g., 100 nF ceramic) to suppress switching noise |
| 3 | 1A | Input A of Gate 1 - TTL-compatible; accepts 0–5.5 V, includes Schmitt-trigger hysteresis |
| 4 | 4Y | Output of Gate 4 - identical electrical behavior to Pin 1; shares same VCC/GND reference |
| 5 | 1B | Input B of Gate 1 - dual input enables full Boolean NOR function; matched delay vs. Pin 3 |
| 6 | 4B | Input B of Gate 4 - electrically isolated from other gates but shares common supply and ground |
| 7 | 2Y | Output of Gate 2 - pin 7 is GND in SO14 but 2Y in TSSOP; critical to verify layout against SOT402-1 map |
| 8 | 4A | Input A of Gate 4 - supports asynchronous reset or enable logic when paired with 4B |
| 9 | 2A | Input A of Gate 2 - used in priority encoder or combinational control blocks requiring parallel gating |
| 10 | 3Y | Output of Gate 3 - routed separately to avoid coupling; matches 1Y/2Y/4Y timing specs |
| 11 | 2B | Input B of Gate 2 - enables dual-input decision logic (e.g., inhibit + trigger) with sub-7 ns latency |
| 12 | 3B | Input B of Gate 3 - supports cascaded NOR structures (e.g., active-low state machine transitions) |
| 13 | GND | Ground reference - low-inductance connection required; return path for all four gate outputs |
| 14 | 3A | Input A of Gate 3 - completes functional set; pin 14 is VCC in SO14 but 3A in TSSOP - layout-critical |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible inputs | VIH = 2.0 V min / VIL = 0.8 V max at 5 V supply - eliminates need for external level shifters in 5 V legacy systems |
| Schmitt-trigger action on all inputs | Hysteresis ≥0.3 V typical - rejects noise spikes <100 ns wide and stabilizes slow-rising control signals |
| Overvoltage-tolerant inputs | VI rating up to 7.0 V - allows safe interfacing with 3.3 V, 5 V, and 12 V domains without clamping diodes |
| Balanced propagation delays | tPLH ≈ tPHL within 0.2 ns - ensures symmetrical rise/fall timing critical for clockless handshake protocols |
| High ESD resilience | HBM > 2000 V, CDM > 1000 V - reduces field failure risk during PCB assembly and end-equipment service |
Applications
| Industrial PLC I/O Conditioning | Digital Power Sequencing Control |
|---|---|
|
Use Scenario: Isolating and inverting enable signals between microcontroller GPIOs and high-side MOSFET drivers in programmable logic controllers. IC Role / Device Role / Timing Role: Quad NOR gate providing active-low enable inversion and noise-immune signal conditioning before driving gate drivers. Use Value: Schmitt-trigger inputs reject EMI from adjacent motor drives; 3.8 ns delay ensures tight coordination with 100 kHz PWM timing windows. |
Use Scenario: Generating synchronized power-up/reset sequences for multi-rail FPGA or DSP subsystems requiring strict voltage ramp order. IC Role / Device Role / Timing Role: Combinatorial logic element generating delayed, inverted, or gated power-good signals from primary supervisor outputs. Use Value: Matched tPLH/tPHL enables deterministic sequencing within ±0.2 ns skew; 125 °C rating supports convection-cooled power modules. |
| Legacy Bus Interface Translation | Hardware Safety Interlock Logic |
|
Use Scenario: Adapting LSTTL bus signals (e.g., ISA, PCI-X sideband) to modern 5 V CMOS controllers in retro-computing or test equipment upgrades. IC Role / Device Role / Timing Role: Level-translating and inverting bus arbitration or interrupt request lines while preserving signal integrity. Use Value: TTL input thresholds ensure correct interpretation of legacy 0.8 V/2.0 V logic; 8 mA drive sustains signal integrity over 15 cm traces. |
Use Scenario: Implementing fail-safe hardware interlocks in CNC motion controllers where dual-channel emergency stop signals must be logically combined. IC Role / Device Role / Timing Role: Redundant NOR gate performing AND-NOT logic (via De Morgan) to assert hardware shutdown only when both channels agree. Use Value: Guaranteed 125 °C operation maintains safety function in enclosed enclosures; HBM > 2 kV prevents false trips from static discharge. |
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 |
|---|---|---|---|
| SN74AHCT02PWR | Same logic function, TSSOP14, TI-manufactured; VIH/VIL identical; tpd = 4.2 ns (CL = 50 pF) vs. 5.1 ns for Nexperia part | Validated in TI's automotive-qualified designs; slightly higher ICC (max 40 μA vs. 20 μA) | Select when sourcing from TI distribution channels or requiring TI-specific qualification documentation |
| 74LVC02PW,118 | Lower voltage operation (1.65–5.5 V); CMOS input (VIH = 70% VCC); tpd = 3.1 ns @ 3.3 V; no Schmitt-trigger inputs | Better for mixed 3.3 V/5 V systems; unsuitable for noisy industrial environments without external filtering | Choose for battery-powered or low-power portable gear where Schmitt-trigger noise rejection is unnecessary |
Compared with SN74AHCT02PWR and 74LVC02PW,118, the 74AHCT02PW,112 offers superior noise immunity via integrated Schmitt triggers and tighter ICC control at 5 V, making it optimal for industrial control where signal integrity and thermal stability outweigh raw speed or multi-voltage flexibility.
Availability
74AHCT02PW,112 is available at Aetrix Electronics and suitable for industrial PLC I/O conditioning, digital power sequencing control, legacy bus interface translation, and hardware safety interlock logic requiring stable component supply across extended temperature ranges.
Supply support for 74AHCT02PW,112 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, discrete, and MOSFET solutions optimized for reliability and manufacturability.
The 74AHCT series targets industrial and consumer applications requiring TTL-compatible CMOS logic with enhanced noise immunity, thermal resilience, and pin-for-pin replacement capability for legacy 74LS devices.
FAQ
Is 74AHCT02PW,112 compatible with 3.3 V logic inputs?
No - the 74AHCT02PW,112 is specifically designed for TTL-level inputs (VIH ≥ 2.0 V at VCC = 4.5–5.5 V). A 3.3 V signal may not reliably register as HIGH due to insufficient margin above the 2.0 V threshold; use 74LVC02PW,118 instead for guaranteed 3.3 V compatibility.
What is the maximum capacitive load this device can drive reliably?
The 74AHCT02PW,112 is characterized up to 50 pF load capacitance per output, with propagation delay specified at 15 pF and 50 pF. Driving >50 pF risks exceeding 7.0 ns max tpd and increasing dynamic power dissipation beyond CPD × VCC² × fi limits.
Does this part include internal ESD protection on all pins?
Yes - all inputs and outputs feature integrated ESD protection meeting HBM > 2000 V (ANSI/ESDA/JEDEC JS-001 Class 2) and CDM > 1000 V (JS-002 Class C3), verified per JEDEC standards and confirmed in the official Nexperia datasheet Rev. 7.
Can I use the exposed pad on the TSSOP14 package for thermal relief?
No - the TSSOP14 (SOT402-1) package for 74AHCT02PW,112 does not include an exposed thermal pad. Thermal management relies on copper pour connected to Pins 2 (VCC) and 13 (GND); derating begins at 81 °C with 7.3 mW/K slope.
74AHCT02PW,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Number of Circuits:
- -
- Number of Inputs:
- -
- Features:
- -
- Voltage - Supply:
- -
- Current - Quiescent (Max):
- -
- Current - Output High, Low:
- -
- Input Logic Level - Low:
- -
- Input Logic Level - High:
- -
- Max Propagation Delay @ V, Max CL:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
74AHCT02PW,112 FAQ
1.How can I place an order for 74AHCT02PW,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT02PW,112 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 74AHCT02PW,112 reliable?
The price and inventory of 74AHCT02PW,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT02PW,112 is usually 5 days.
3.What payment methods are accepted for 74AHCT02PW,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT02PW,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHCT02PW,112?
74AHCT02PW,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT02PW,112 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 74AHCT02PW,112?
For technical support, including 74AHCT02PW,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT02PW,112 requirements.
6.How does Aetrix verify that 74AHCT02PW,112 is sourced from the original manufacturer or authorized distributors?
All 74AHCT02PW,112 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 74AHCT02PW,112 meets industry standards.
7.What is the process for return or replacement of 74AHCT02PW,112?
All 74AHCT02PW,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT02PW,112, 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 74AHCT02PW,112 part is unused and in its original packaging.
Return procedure for 74AHCT02PW,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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