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Nexperia USA Inc. 74VHCT14PW,118
- Part No.:
- 74VHCT14PW,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74VHCT14PW,118.pdf
- Description:
- IC INVERTER 6CH 1-INP 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:153
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Product details
Overview
74VHCT14PW,118 from Nexperia is a hex inverting Schmitt trigger IC designed for noise-immune signal conditioning in digital logic interfaces. It provides six independent TTL-level-compatible inverters with hysteresis (VT+ = 1.9 V, VT− = 0.5 V at VCC = 4.5 V), 8.0 ns typical propagation delay (CL = 15 pF), ±8 mA output drive, and operates across −40 °C to +125 °C in a TSSOP14 package.
For engineers reviewing the 74VHCT14PW,118 datasheet, 74VHCT14PW,118 pinout, 74VHCT14PW,118 application, or 74VHCT14PW,118 equivalent, this device is selected for robust edge detection in industrial control inputs, debounced switch interfaces, clock waveform shaping, and relaxation oscillator generation where input signal slew rate and noise margin are critical.
Technical Context
The 74VHCT14PW,118 implements six independent CMOS-based Schmitt-trigger inverters with TTL-compatible input thresholds-ensuring reliable interfacing with legacy 5 V LSTTL logic while maintaining low ICC (< 2 μA typical) and high noise immunity. Its transfer characteristics deliver 1.4 V hysteresis at VCC = 4.5 V, enabling clean signal regeneration from slow or noisy waveforms.
It uses Si-gate CMOS technology compliant with JEDEC Std. 7A, supports rail-to-rail output swing (VOH ≥ 3.7 V, VOL ≤ 0.55 V at IO = ±8 mA), and features ESD protection exceeding 2000 V HBM and 1000 V CDM-critical for board-level reliability in factory automation and instrumentation environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Hex inverting Schmitt trigger - converts slow/noisy inputs into sharp, jitter-free digital outputs with defined hysteresis |
| Input Compatibility | TTL-level (VIH = 2.0 V min, VIL = 0.8 V max) - interoperable with standard 5 V LSTTL without level-shifting |
| Propagation Delay | 7.0 ns typical (VCC = 5.0 V, CL = 15 pF) - enables use in >100 MHz clock conditioning and timing-critical debounce |
| Output Drive | ±8 mA (VOH/VOL guaranteed at VCC = 4.5–5.5 V) - sufficient to directly drive multiple 74-series inputs or small LEDs |
| Operating Temperature | −40 °C to +125 °C - qualified for under-hood automotive modules, motor drives, and industrial PLC I/O stages |
| Supply Voltage Range | 4.5 V to 5.5 V - tightly regulated 5 V system compatibility with immunity to supply droop-induced mis-triggering |
| ESD Robustness | HBM > 2000 V, CDM > 1000 V - reduces field failure risk in manual handling and unshielded sensor interface PCBs |
Pinout & Package
TSSOP14 (SOT402-1) package: plastic thin shrink small outline, 14 leads, body width 4.4 mm, 0.65 mm lead pitch, 1.2 mm max height - optimized for high-density PCB layouts and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 9, 11, 13 | Input (1A–6A) | Independent Schmitt-trigger inputs accepting TTL-level signals; each has hysteresis to reject noise below 1.4 V amplitude |
| 2, 4, 6, 8, 10, 12 | Output (1Y–6Y) | Inverted, rail-to-rail CMOS outputs capable of sourcing/sinking ±8 mA - suitable for fanout to 10 LSTTL loads |
| 7 | GND | Ground reference (0 V) - must be low-impedance connection to minimize switching noise coupling between channels |
| 14 | VCC | Positive supply (4.5–5.5 V) - requires local 100 nF ceramic decoupling adjacent to pin to suppress dynamic current transients |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | Guaranteed VT+ = 1.9 V / VT− = 0.5 V at VCC = 4.5 V - eliminates chatter on mechanical switch closures and slow RC waveforms |
| Balanced propagation delays | tpLH and tpHL match within 0.5 ns - preserves duty cycle integrity in clock-shaping applications |
| Wide temperature operation | Specified from −40 °C to +125 °C - validated for continuous operation in sealed enclosures without derating |
| Low static power | ICC ≤ 2 μA typical at VCC = 5.5 V - enables use in always-on sensor nodes with microamp-level budget constraints |
| Multiple package options | TSSOP14 (SOT402-1) footprint - compatible with standard reflow profiles and AOI inspection; pin-compatible with SO14 and DHVQFN14 variants |
Applications
| Industrial Switch Debouncing | Waveform Shaping for Clock Signals |
|---|---|
|
Use Scenario: Mechanical pushbuttons and limit switches in PLC I/O modules generate contact bounce lasting 1–10 ms. IC Role / Device Role / Timing Role: Each inverter channel conditions one switch input using Schmitt hysteresis to produce a single clean logic transition per actuation. Use Value: Eliminates need for external RC networks or firmware debouncing, reducing BOM count and MCU interrupt load. |
Use Scenario: Microcontroller-generated clock signals exhibit slow edges or overshoot due to trace impedance mismatch. IC Role / Device Role / Timing Role: Inverter chain reshapes rising/falling edges into fast, monotonic transitions with controlled slew rate. Use Value: Ensures reliable setup/hold timing for downstream FPGA or ASIC clock inputs, preventing metastability. |
| Relaxation Oscillator Generation | Noise-Immune Sensor Interface |
|
Use Scenario: Low-cost timing function required for LED flashers or watchdog timeouts without crystal. IC Role / Device Role / Timing Role: One inverter configured with external R-C feedback forms a stable astable multivibrator (Fig. 10). Use Value: Delivers predictable frequency (±10% over temp) using only two passive components - no precision capacitor needed. |
Use Scenario: Analog sensors (e.g., thermistors, photoresistors) feed slowly varying voltages into microcontroller ADCs. IC Role / Device Role / Timing Role: Converts analog threshold crossings into clean digital interrupts via Schmitt-triggered edge detection. Use Value: Rejects EMI-induced glitches on long sensor cables, ensuring accurate event counting in factory floor environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex inverting Schmitt trigger applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74VHC14PW,118 | CMOS-input version (VIH = 3.5 V min); wider VCC range (2.0–5.5 V); lower ICC (≤0.1 μA typical) | Better suited for mixed-voltage systems (e.g., 3.3 V logic with 5 V peripherals); higher noise margin on slow-rising inputs | Select when interfacing with CMOS or mixed-supply logic; avoid if driving from legacy 5 V TTL sources without pull-ups |
| SN74LV14APW | Texas Instruments part; same pinout; VIH = 1.8 V min at VCC = 3.3 V; slightly slower (10.5 ns typ @ 3.3 V) | Optimized for 3.3 V domains; not rated for 125 °C operation (max +85 °C only) | Prefer for cost-sensitive 3.3 V embedded designs where extended temperature is unnecessary |
Compared with 74VHC14PW,118 and SN74LV14APW, the 74VHCT14PW,118 uniquely balances TTL input compatibility, 125 °C operation, and sub-8 ns speed-making it the only choice for industrial 5 V systems requiring both legacy interoperability and extended thermal range.
Availability
74VHCT14PW,118 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, factory automation sensor interfaces, and medical diagnostic equipment requiring stable component supply across extended temperature ranges.
Supply support for 74VHCT14PW,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 headquartered in Nijmegen, Netherlands, specializing in high-volume, high-reliability logic, discrete, and MOSFET solutions for industrial, automotive, and consumer markets.
The 74VHCT series targets robust digital interfacing in harsh environments-designed specifically to replace LSTTL with CMOS efficiency while preserving pin and functional compatibility for drop-in upgrades in legacy 5 V systems.
FAQ
Can 74VHCT14PW,118 operate at 3.3 V supply?
No. The 74VHCT14PW,118 is specified only for VCC = 4.5 V to 5.5 V per Table 5. At 3.3 V, input thresholds fall outside TTL compatibility (VIH min = 2.0 V), and VOH degrades below 2.4 V-risking undetected logic highs in downstream 5 V receivers. Use 74VHC14PW,118 for 3.3 V operation.
What is the maximum capacitive load per output?
The datasheet guarantees timing and voltage specs up to CL = 50 pF (Table 7). Driving >50 pF increases propagation delay nonlinearly and may cause ringing; for >100 pF loads, add a series resistor (22–47 Ω) near the output to dampen reflections without compromising edge rate.
Is thermal pad on TSSOP14 (SOT402-1) required to connect to ground?
No. The 74VHCT14PW,118 TSSOP14 package has no exposed thermal pad. Pin 7 (GND) and pin 14 (VCC) are the only power terminals. Thermal performance relies on copper pour under the 14-pin body and standard PCB trace width design per IPC-2221.
How does hysteresis improve noise immunity in practice?
With VT+ = 1.9 V and VT− = 0.5 V at VCC = 4.5 V, the 1.4 V hysteresis window prevents multiple toggles when input noise amplitude is <1.4 V peak-to-peak. This eliminates false triggers from EMI on long traces or contact bounce, yielding one deterministic output transition per input crossing.
74VHCT14PW,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74VHCT
- 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
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Max):
- 2 µA
- Current - Output High, Low:
- 8mA, 8mA
- Input Logic Level - Low:
- 0.5V ~ 0.6V
- Input Logic Level - High:
- 1.9V ~ 2.1V
- Max Propagation Delay @ V, Max CL:
- 8ns @ 5V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
74VHCT14PW,118 FAQ
1.How can I place an order for 74VHCT14PW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74VHCT14PW,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 74VHCT14PW,118 reliable?
The price and inventory of 74VHCT14PW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74VHCT14PW,118 is usually 5 days.
3.What payment methods are accepted for 74VHCT14PW,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74VHCT14PW,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74VHCT14PW,118?
74VHCT14PW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74VHCT14PW,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 74VHCT14PW,118?
For technical support, including 74VHCT14PW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74VHCT14PW,118 requirements.
6.How does Aetrix verify that 74VHCT14PW,118 is sourced from the original manufacturer or authorized distributors?
All 74VHCT14PW,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 74VHCT14PW,118 meets industry standards.
7.What is the process for return or replacement of 74VHCT14PW,118?
All 74VHCT14PW,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74VHCT14PW,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 74VHCT14PW,118 part is unused and in its original packaging.
Return procedure for 74VHCT14PW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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