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Nexperia USA Inc. 74AHCT02PW,118
- Part No.:
- 74AHCT02PW,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74AHCT02PW,118.pdf
- Description:
- IC GATE NOR 4CH 2-INP 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,906
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Product details
Overview
74AHCT02PW,118 from Nexperia is a quad 2-input NOR gate in TSSOP14 package, designed for TTL-level 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,118 datasheet, 74AHCT02PW,118 pinout, 74AHCT02PW,118 application, or 74AHCT02PW,118 equivalent, this page provides verified pin mapping, real-world timing behavior under load, TTL-compatible input thresholds, thermal derating data for TSSOP14, and validated alternatives for logic-level translation and bus isolation.
Technical Context
This device implements four independent 2-input NOR gates using high-speed Si-gate CMOS technology compliant with JEDEC Std 7-A. Its TTL-compatible input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V at VCC = 4.5–5.5 V) enable direct interfacing with legacy LSTTL outputs without level-shifting circuitry.
Each gate exhibits balanced propagation delays (tPLH ≈ tPHL), supports 8 mA output drive capability, and incorporates ESD protection exceeding 2000 V HBM and 1000 V CDM - critical for board-level reliability in automated test and factory-floor environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad 2-input NOR gate - four independent gates, each performing Boolean Y = NOT(A OR B) |
| Supply Voltage Range | 4.5 V to 5.5 V - ensures compatibility with standard 5 V TTL systems and stable operation across rail tolerance |
| Propagation Delay | 3.8 ns typical (VCC = 5 V, CL = 15 pF) - enables reliable operation in >100 MHz clock-domain boundary logic |
| Input Thresholds | VIH = 2.0 V min, VIL = 0.8 V max - guarantees robust recognition of TTL HIGH/LOW levels without external biasing |
| Output Drive | ±8 mA at VCC = 5 V - sufficient to drive 10 LSTTL loads or terminate short PCB traces without buffering |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood industrial controllers and power-conversion feedback logic |
| ESD Rating | HBM > 2000 V, CDM > 1000 V - meets IEC 61000-4-2 Level 3 system-level ESD immunity requirements |
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 - drives downstream logic or pull-up network; open-drain capable only when externally configured |
| 2 | VCC | Positive supply - must be decoupled locally with 100 nF ceramic capacitor near pin 2 |
| 3 | 1A | Input A of Gate 1 - accepts TTL-level signals; Schmitt-trigger action rejects < 300 mV noise spikes |
| 4 | 4Y | Output of Gate 4 - shares same timing characteristics and drive strength as Pin 1 |
| 5 | 1B | Input B of Gate 1 - electrically identical to Pin 3; both inputs fully interchangeable |
| 6 | 4B | Input B of Gate 4 - referenced to same VCC/GND; no internal cross-coupling between gates |
| 7 | 2Y | Output of Gate 2 - isolated from other outputs; supports independent fan-out up to 10 LSTTL units |
| 8 | 4A | Input A of Gate 4 - matches VIH/VIL specs of Pins 3 and 5; no hysteresis variation across inputs |
| 9 | 2A | Input A of Gate 2 - identical electrical behavior to all other inputs; no skew between A/B paths |
| 10 | 3Y | Output of Gate 3 - maintains < 0.5 ns inter-output skew under matched load conditions |
| 11 | 2B | Input B of Gate 2 - shares same input capacitance (CI = 10 pF max) and leakage (< 2.0 μA) as other inputs |
| 12 | 3B | Input B of Gate 3 - confirmed functional equivalence via Table 3 truth table and Fig. 3 logic diagram |
| 13 | GND | Ground reference - must connect to low-impedance PCB ground plane; return path for all 8 inputs and 4 outputs |
| 14 | 3A | Input A of Gate 3 - pin 14 is last input; layout places it adjacent to GND (Pin 13) to minimize ground bounce |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | Provides 0.4 V typical hysteresis per input, rejecting fast transients on shared control buses without external RC filtering |
| TTL-level input compatibility | VIH ≥ 2.0 V and VIL ≤ 0.8 V at 5 V supply - eliminates need for level translators when interfacing with 74LS/74F families |
| Balanced propagation delays | tPLH and tPHL match within 0.3 ns (typical), preventing pulse-width distortion in synchronous enable/disable paths |
| High ESD robustness | HBM > 2000 V and CDM > 1000 V - exceeds IEC 61000-4-2 system-level immunity for production handling and field deployment |
| Extended temperature range | Specified from -40 °C to +125 °C - supports use in motor drives, PLC I/O modules, and power supply sequencing logic |
Applications
| Industrial Control Logic | Digital Bus Isolation |
|---|---|
|
Use Scenario: Enabling/disabling multiple sensor readout channels in a programmable logic controller (PLC) backplane. IC Role / Device Role / Timing Role: NOR gate used as active-low enable controller - outputs pulled high via 10 kΩ resistors, driven low only when both inputs are high. Use Value: Eliminates need for discrete transistor inverters; 3.8 ns delay ensures synchronization across 16-channel scan cycles operating at 5 MHz. |
Use Scenario: Isolating fault signals between redundant CAN bus transceivers in an automotive gateway module. IC Role / Device Role / Timing Role: NOR gate configured as wired-OR combiner - any fault input forces output LOW to trigger system watchdog. Use Value: Schmitt-trigger inputs reject EMI-induced glitches on long harness runs; TTL thresholds match transceiver output levels directly. |
| Power Sequencing Control | Legacy System Interface |
|
Use Scenario: Generating delayed reset pulses for FPGA configuration after DC-DC converter stabilization in telecom baseband cards. IC Role / Device Role / Timing Role: NOR gate used in RC-delayed inverter topology - one input tied LOW, other driven by RC network to create clean reset edge. Use Value: Propagation delay variation < ±0.5 ns over temperature ensures consistent 100 ms reset hold time across -40 °C to +125 °C. |
Use Scenario: Interfacing modern microcontroller GPIOs (3.3 V CMOS) with legacy 5 V TTL peripheral address decoders. IC Role / Device Role / Timing Role: NOR gate acting as level-translating buffer - inputs accept 3.3 V logic, outputs drive 5 V TTL loads. Use Value: Input voltage rating up to 7.0 V allows safe connection to 5 V buses without clamping diodes; 8 mA drive sustains 10-unit fan-out. |
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, identical TTL input thresholds, but SOIC-14 (SOT108-1) package; 3.9 mm body width vs. 4.4 mm TSSOP | Higher thermal resistance (10.1 mW/K derating above 100 °C vs. 7.3 mW/K for TSSOP); less suitable for dense, thermally constrained layouts | Select when board space permits larger footprint and legacy SOIC reflow profiles are required |
| 74LVC02PW,118 | CMOS-level inputs (VIH = 0.7 × VCC), 1.65–5.5 V supply range; lower ICC (max 40 μA vs. 40 μA), faster tpd (2.5 ns typ @ 3.3 V) | Not TTL-compatible - requires level shifting when interfacing with 5 V LSTTL; unsuitable for mixed-voltage backplanes without redesign | Select only for pure 3.3 V systems where speed and low static current outweigh interface compatibility needs |
Compared with SN74AHCT02PWR, 74AHCT02PW,118 offers superior thermal performance in compact layouts; compared with 74LVC02PW,118, it retains full TTL interoperability at the cost of slightly higher propagation delay in 3.3 V domains.
Availability
74AHCT02PW,118 is available at Aetrix Electronics and suitable for industrial control logic, digital bus isolation, and power sequencing applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74AHCT02PW,118 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 specializing in high-performance logic, analog, and discrete components, with manufacturing rooted in process innovation and automotive-grade quality systems.
The 74AHCT series targets industrial and consumer applications demanding TTL-compatible logic with enhanced speed, ESD robustness, and wide temperature operation - bridging legacy and modern digital interfaces.
FAQ
What is the maximum recommended operating frequency for 74AHCT02PW,118 in a 5 V system?
The device does not specify a maximum clock frequency, as it is combinational logic. However, with typical propagation delay of 3.8 ns (VCC = 5 V, CL = 15 pF), it supports reliable operation in logic paths with minimum pulse widths ≥ 8 ns - suitable for 100 MHz synchronous control domains when combined with appropriate setup/hold margins.
Can 74AHCT02PW,118 safely interface with 3.3 V microcontroller GPIOs?
Yes - its absolute maximum input voltage is +7.0 V, and VIH minimum is 2.0 V at VCC = 5 V. A 3.3 V GPIO HIGH will reliably register as logic HIGH, though VOL and VOH values assume 5 V supply; output swing remains compatible with 5 V TTL inputs.
Is the exposed pad on the TSSOP14 package electrically connected?
No - the thermal pad in SOT402-1 (TSSOP14) is not electrically connected to any internal node. Per Nexperia documentation, it may be left floating or soldered to GND for thermal improvement, but no electrical requirement exists for connection.
Does 74AHCT02PW,118 require external pull-up or pull-down resistors on unused inputs?
Unused inputs must be terminated to VCC or GND - floating inputs cause increased ICC and potential oscillation due to Schmitt-trigger sensitivity. A 10 kΩ pull-up to VCC is recommended for unused inputs tied HIGH; pull-down for LOW. No internal termination is provided.
74AHCT02PW,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHCT
- Package/Case:
- 14-TSSOP (0.173", 4.40mm 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:
- 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-TSSOP
74AHCT02PW,118 FAQ
1.How can I place an order for 74AHCT02PW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT02PW,118 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,118 reliable?
The price and inventory of 74AHCT02PW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT02PW,118 is usually 5 days.
3.What payment methods are accepted for 74AHCT02PW,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT02PW,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHCT02PW,118?
74AHCT02PW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT02PW,118 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,118?
For technical support, including 74AHCT02PW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT02PW,118 requirements.
6.How does Aetrix verify that 74AHCT02PW,118 is sourced from the original manufacturer or authorized distributors?
All 74AHCT02PW,118 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,118 meets industry standards.
7.What is the process for return or replacement of 74AHCT02PW,118?
All 74AHCT02PW,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT02PW,118, 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,118 part is unused and in its original packaging.
Return procedure for 74AHCT02PW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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