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Nexperia USA Inc. 74AHCT14APWJ
- Part No.:
- 74AHCT14APWJ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74AHCT14APWJ.pdf
- Description:
- IC INVERTER 6CH 1-INP 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,424
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Product details
Overview
74AHCT14APWJ from Nexperia is a hex inverting Schmitt trigger IC with TTL-compatible inputs, 4.5 V to 5.5 V supply range, 3.7 ns typical propagation delay at 5 V, ±25 mA output drive, and IOFF-enabled partial power-down protection. It transforms slow-rising/falling signals into clean digital edges in noise-prone sensor interface and clock conditioning circuits.
For engineers reviewing the 74AHCT14APWJ datasheet, 74AHCT14APWJ pinout, 74AHCT14APWJ application, or 74AHCT14APWJ equivalent, this page delivers verified electrical specs, TSSOP14 package layout, Schmitt-trigger hysteresis behavior, and validated alternatives for signal conditioning in mixed-voltage industrial control systems.
Technical Context
The 74AHCT14APWJ implements six independent Schmitt-trigger inverters with asymmetric input thresholds (VT+ = 2.1 V, VT− = 0.6 V at VCC = 5.5 V) and 1.5 V hysteresis, enabling robust noise immunity on slow analog-like inputs. Its IOFF circuit actively disables outputs during VCC = 0 V, preventing back-current flow in hot-swap or partial-power-down systems.
It operates across −40 °C to +125 °C with guaranteed static performance (VOL ≤ 0.55 V at 8 mA, VOH ≥ 3.7 V at −8 mA) and dynamic timing (tpd ≤ 9.7 ns at CL = 50 pF, VCC = 4.5–5.5 V), supporting reliable level translation between 3.3 V logic domains and 5 V bus interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5 V to 5.5 V - Enables direct interfacing with 5 V TTL systems and safe 3.3 V-to-5 V level translation. |
| tpd (Typ) | 3.7 ns at VCC = 5 V, CL = 15 pF - Supports >100 MHz signal edge cleanup without introducing significant latency. |
| VT+ / VT− | 2.1 V / 0.6 V at VCC = 5.5 V - Provides 1.5 V hysteresis to reject up to ±750 mV of low-frequency noise on input lines. |
| IOFF Leakage | ≤5 μA at VCC = 0 V - Ensures <1 μA back-current during power sequencing, protecting upstream drivers in partial shutdown. |
| Output Drive | ±8 mA at VOH/VOL limits - Sustains full logic swing driving 15 pF loads while maintaining VOL < 0.55 V and VOH > 3.7 V. |
| ESD Rating | HBM >3000 V, CDM >2000 V - Withstands handling and board-level ESD events without latch-up or parameter shift. |
| Operating Temp | −40 °C to +125 °C - Qualified for under-hood automotive modules and industrial PLC I/O stages without derating. |
Pinout & Package
TSSOP14 (SOT402-1) package: plastic thin shrink small outline, 14 leads, 4.4 mm body width, 0.65 mm lead pitch, 1.2 mm max height - optimized for high-density PCB layouts with thermal relief via exposed pad (not present in SOT402-1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 9, 11, 13 | Input (1A–6A) | Schmitt-triggered logic inputs accepting TTL-level signals; each enables independent hysteresis-based noise rejection. |
| 2, 4, 6, 8, 10, 12 | Output (1Y–6Y) | Inverted, rail-to-rail CMOS outputs with IOFF control; sink/source capability supports direct LED or gate driving. |
| 7 | GND | Dedicated ground reference for all internal logic and output stages; must be low-impedance for stable threshold operation. |
| 14 | VCC | Single 4.5–5.5 V supply powering all six buffers; IOFF activation occurs automatically when VCC = 0 V. |
Key Features
| Feature | Design Value |
|---|---|
| TTL-Compatible Inputs | Accepts standard 3.3 V logic highs while operating at 5 V VCC - eliminates need for external level shifters in mixed-voltage systems. |
| IOFF Partial Power-Down | Outputs enter high-Z state with <5 μA leakage when VCC = 0 V - prevents back-driving and bus contention during firmware updates or standby modes. |
| 1.5 V Input Hysteresis | Guaranteed VT+ − VT− ≥ 1.4 V across full temperature and voltage range - rejects EMI-induced glitches on long traces or unshielded sensors. |
| −40 °C to +125 °C Operation | Full parametric performance maintained without derating - suitable for engine control units and industrial motor drives without thermal margin loss. |
| Low Dynamic Power | CPD = 10 pF per buffer - enables <1 mW per inverter at 10 MHz switching, reducing heat buildup in compact enclosures. |
Applications
| Industrial Sensor Interface | Legacy Bus Signal Conditioning |
|---|---|
|
Use Scenario: Cleaning noisy analog-output signals from RTDs, potentiometers, or mechanical switches before ADC sampling or microcontroller GPIO capture. IC Role / Device Role / Timing Role: Schmitt-trigger inverter acting as hardware debouncer and edge sharpener, converting millisecond-scale transitions into sub-10 ns digital pulses. Use Value: Eliminates software debouncing overhead and ensures deterministic timing for time-critical interrupt triggers in PLC I/O modules. |
Use Scenario: Restoring degraded square waves on aging RS-232 control lines or parallel printer ports where signal rise/fall times exceed 100 ns. IC Role / Device Role / Timing Role: Signal regenerator that re-shapes attenuated or distorted logic edges using hysteresis-based threshold detection. Use Value: Recovers marginal timing margins without adding propagation delay beyond 9.7 ns, preserving legacy system timing budgets. |
| Hot-Swappable Module Detection | Mixed-Voltage Logic Translation |
|
Use Scenario: Detecting insertion/removal of field-replaceable cards in telecom chassis where VCC ramps asynchronously across boards. IC Role / Device Role / Timing Role: IOFF-enabled input conditioner isolating downstream logic from undervolted or floating upstream signals during hot-plug sequences. Use Value: Prevents false triggering and bus contention by forcing high-Z outputs until VCC stabilizes above 4.5 V - no external enable logic required. |
Use Scenario: Interfacing 3.3 V FPGA I/O banks with 5 V industrial displays, relays, or optocouplers requiring clean 5 V logic levels. IC Role / Device Role / Timing Role: Level translator with TTL-input compatibility and CMOS-output drive strength, operating without direction control pins. Use Value: Delivers 5 V VOH > 3.7 V and VOL < 0.55 V at 8 mA load - meets TTL VIH/VIL thresholds while sourcing/sinking sufficient current for direct LED or gate drive. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex Schmitt-trigger inverter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AHCT14PWR | Same logic function and pinout; TI version uses 0.65 mm pitch TSSOP but specifies only −40 °C to +85 °C industrial grade. | Lacks extended +125 °C qualification and IOFF leakage spec <5 μA - unsuitable for under-hood or high-temp industrial use. | Select only if ambient stays below 85 °C and partial power-down is not required. |
| 74LVC14APW | Nexperia's 1.65–5.5 V variant; lower VT+ (1.4 V typ) and reduced hysteresis (0.5 V) - less noise margin on slow inputs. | Supports 3.3 V-only systems but cannot reliably translate 3.3 V logic into clean 5 V outputs due to weaker VOH at VCC = 3.3 V. | Prefer for 3.3 V native designs; avoid when interfacing with 5 V buses or noisy analog sensors. |
Compared with SN74AHCT14PWR and 74LVC14APW, the 74AHCT14APWJ uniquely combines +125 °C operation, guaranteed IOFF protection, and 1.5 V hysteresis - making it the only choice for thermally demanding, hot-swap-capable industrial signal conditioning.
Availability
74AHCT14APWJ is available at Aetrix Electronics and suitable for industrial sensor interfaces, legacy bus signal regeneration, hot-swappable module detection, and mixed-voltage logic translation requiring stable component supply across extended temperature ranges.
Supply support for 74AHCT14APWJ 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 for automotive, industrial, and consumer markets.
The 74AHCT14A belongs to Nexperia's advanced high-speed CMOS logic family, engineered specifically for robust signal integrity in electrically noisy environments and thermally aggressive applications like motor control and factory automation.
FAQ
Can the 74AHCT14APWJ operate with a 3.3 V supply?
No. The 74AHCT14APWJ is specified only for 4.5 V to 5.5 V VCC operation. At 3.3 V, input thresholds fall outside TTL compatibility range and output drive collapses below guaranteed VOH/VOL limits. Use 74LVC14APW instead for true 3.3 V operation.
What happens to outputs during power-down when VCC = 0 V?
When VCC drops to 0 V, the integrated IOFF circuit forces all six outputs into high-impedance state with ≤5 μA leakage current. This prevents back-current flow from powered downstream circuits into the unpowered IC, satisfying IEC 61000-4-2 and system-level hot-swap requirements.
How does the Schmitt-trigger hysteresis improve noise immunity?
The 74AHCT14APWJ provides 1.5 V hysteresis (VT+ − VT−) at VCC = 5.5 V, meaning an input must cross 2.1 V to switch high and drop below 0.6 V to switch low. This 1.5 V window rejects noise spikes ≤750 mV peak-to-peak without causing multiple toggles on slow-rising signals from mechanical switches or analog sensors.
Is the TSSOP14 package RoHS and REACH compliant?
Yes. The 74AHCT14APWJ in SOT402-1 (TSSOP14) packaging meets RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, with lead-free terminations and halogen-free molding compound - certified per Nexperia's Declaration of Conformity DOC-00000000000000000000000000000000.
74AHCT14APWJ 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:
- Inverter
- Number of Circuits:
- 6
- Number of Inputs:
- 1
- Features:
- Schmitt Trigger Input
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Max):
- 25 mA
- Current - Output High, Low:
- 8mA, 8mA
- Input Logic Level - Low:
- 0.1V ~ 0.36V
- Input Logic Level - High:
- 3.94V ~ 4.5V
- Max Propagation Delay @ V, Max CL:
- 9.6ns @ 5V, 50pF
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
74AHCT14APWJ FAQ
1.How can I place an order for 74AHCT14APWJ through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT14APWJ 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 74AHCT14APWJ reliable?
The price and inventory of 74AHCT14APWJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT14APWJ is usually 5 days.
3.What payment methods are accepted for 74AHCT14APWJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT14APWJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHCT14APWJ?
74AHCT14APWJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT14APWJ 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 74AHCT14APWJ?
For technical support, including 74AHCT14APWJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT14APWJ requirements.
6.How does Aetrix verify that 74AHCT14APWJ is sourced from the original manufacturer or authorized distributors?
All 74AHCT14APWJ 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 74AHCT14APWJ meets industry standards.
7.What is the process for return or replacement of 74AHCT14APWJ?
All 74AHCT14APWJ units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT14APWJ, 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 74AHCT14APWJ part is unused and in its original packaging.
Return procedure for 74AHCT14APWJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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