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Nexperia USA Inc. 74HC14PW,112
- Part No.:
- 74HC14PW,112
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74HC14PW,112.pdf
- Description:
- IC INVERTER 6CH 1-INP 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,038
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Product details
Overview
74HC14PW,112 from Nexperia is a hex inverting Schmitt trigger IC operating from 2.0 V to 6.0 V, featuring six independent hysteresis-input inverters with VT+ = 2.38 V and VT− = 1.4 V (at VCC = 4.5 V), propagation delay of 15 ns (typ), and TSSOP14 package for high-density PCB layouts. It transforms slow-rising/noisy input signals into clean digital outputs in waveform shaping and oscillator circuits.
For engineers reviewing the 74HC14PW,112 datasheet, 74HC14PW,112 pinout, 74HC14PW,112 application, or 74HC14PW,112 equivalent, key selection considerations include Schmitt-trigger hysteresis voltage (1.0 V typ at 4.5 V), input clamp diode support for overvoltage-tolerant interfacing, -40 °C to +125 °C industrial temperature range, and compatibility with TTL-level inputs.
Technical Context
The 74HC14PW,112 implements six independent CMOS inverter stages, each with asymmetric Schmitt-trigger input thresholds enabling noise rejection on slow-transition signals. Its input structure includes integrated clamp diodes, allowing safe interface to voltages exceeding VCC when used with current-limiting resistors.
It operates across 2.0–6.0 V supply range with static input thresholds defined per VCC (e.g., VT+ = 4.4 V, VT− = 0.9 V at VCC = 4.5 V), supports unlimited input rise/fall times, and delivers rail-to-rail CMOS output swing with ±4.0 mA drive capability at VCC = 4.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.0 V to 6.0 V - Enables direct operation from 3.3 V or 5 V rails without level shifting. |
| Input Thresholds (VCC = 4.5 V) | VT+ = 2.38 V, VT− = 1.4 V - Provides 0.98 V hysteresis for robust noise immunity on analog-like inputs. |
| Propagation Delay | 15 ns (typ) at VCC = 4.5 V, CL = 50 pF - Supports reliable timing in sub-30 MHz relaxation oscillators and pulse edge conditioning. |
| Output Drive | ±4.0 mA at VCC = 4.5 V - Sufficient to directly drive multiple 74HC inputs or small capacitive loads without buffering. |
| Operating Temperature | -40 °C to +125 °C - Qualified for under-hood, industrial control, and extended-environment embedded systems. |
| Input Clamp Diodes | Integrated - Permits safe interfacing to signals up to VCC + 0.5 V using external series resistors. |
| Power Dissipation | 500 mW max (TSSOP14) - Requires thermal derating above 81 °C (7.3 mW/K) for sustained operation. |
Pinout & Package
TSSOP14 (SOT402-1) package: 14-lead thin shrink small outline, 4.4 mm body width, 0.65 mm pitch, exposed pad not electrically connected (floating or GND optional).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 9, 11, 13 | Data Input (1A–6A) | Schmitt-triggered inverter inputs; accept slow or noisy signals and reject glitches below hysteresis window. |
| 2, 4, 6, 8, 10, 12 | Data Output (1Y–6Y) | Inverted CMOS outputs; rail-to-rail swing, capable of driving ≥10 74HC loads at 4.5 V. |
| 7 | GND | Ground reference for all logic and power domains; must be low-impedance for stable hysteresis behavior. |
| 14 | VCC | Positive supply; powers all six inverters and internal threshold circuitry; bypass capacitor required near pin. |
Key Features
| Feature | Design Value |
|---|---|
| Wide Supply Range | 2.0–6.0 V - Eliminates need for separate voltage regulators in mixed-supply systems (e.g., 3.3 V MCU + 5 V sensors). |
| High Noise Immunity | 0.98 V hysteresis at 4.5 V - Rejects EMI-induced transients ≤1 V peak without false triggering. |
| Unlimited Input Slew Rate Support | No minimum rise/fall time requirement - Accepts signals from thermistors, potentiometers, or RC networks without distortion. |
| ESD Robustness | HBM >2000 V, CDM >1000 V - Reduces handling sensitivity and improves field reliability in unshielded environments. |
| Latch-up Immunity | Exceeds 100 mA per JESD78 Class II Level B - Prevents destructive latch-up during transient overvoltage events. |
Applications
| Waveform Shaping | Astable Multivibrator |
|---|---|
|
Use Scenario: Converting sine-wave or triangle-wave sensor outputs (e.g., from vibration transducers) into clean square waves for microcontroller capture. IC Role / Device Role / Timing Role: Schmitt-trigger inverter acting as zero-crossing detector with hysteresis to suppress noise-induced jitter. Use Value: Delivers deterministic edge timing with <15 ns propagation delay variation across temperature, enabling precise frequency measurement. |
Use Scenario: Generating clock signals for LED flashers or status indicators using only two inverters, one resistor, and one capacitor. IC Role / Device Role / Timing Role: One inverter configured as linear amplifier with feedback; second as digital inverter to sustain oscillation. Use Value: Achieves stable 1–100 kHz oscillation without external crystals or dedicated timer ICs, reducing BOM count. |
| Monostable Multivibrator | Power-On Reset Conditioning |
|
Use Scenario: Creating fixed-duration pulses from momentary switch closures in industrial HMI panels. IC Role / Device Role / Timing Role: Inverter-based RC-triggered one-shot generating 10–500 ms pulses with predictable edge alignment. Use Value: Eliminates mechanical contact bounce via hysteresis; pulse width set solely by R×C, no trimming required. |
Use Scenario: Debouncing and extending reset pulses generated by microcontroller POR circuits or manual reset buttons. IC Role / Device Role / Timing Role: First inverter shapes noisy reset signal; second provides inverted, glitch-free active-low reset assertion. Use Value: Ensures ≥100 ms valid reset hold time even with sub-millisecond switch bounce, meeting ARM Cortex-M startup requirements. |
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 |
|---|---|---|---|
| 74HCT14PW,112 | TTL-compatible input thresholds (VT+ = 1.41 V, VT− = 0.85 V at 4.5 V); identical pinout and package. | Better interoperability with legacy 5 V TTL logic; slightly lower noise margin than HC variant. | Select when interfacing directly to 5 V TTL outputs or when tighter input threshold matching to 1.4 V logic families is required. |
| SN74LVC14APW | Lower VCC range (1.65–5.5 V); higher drive (±24 mA); smaller hysteresis (0.3 V typ at 3.3 V). | Optimized for 3.3 V systems with heavy capacitive loading; less effective for noisy analog-sourced inputs. | Prefer for modern low-voltage designs needing stronger drive or tighter 3.3 V integration; avoid where >0.8 V hysteresis is critical. |
Compared with 74HC14PW,112, the 74HCT14PW,112 offers superior TTL-level compatibility but reduced noise immunity, while the SN74LVC14APW enables higher-speed 3.3 V operation at the cost of Schmitt performance on marginal signals.
Availability
74HC14PW,112 is available at Aetrix Electronics and suitable for waveform shapers, astable/monostable multivibrators, and power-on reset circuits requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for 74HC14PW,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 delivering high-performance, reliable logic, discrete, and MOSFET solutions optimized for efficiency-critical applications.
The 74HC14 belongs to Nexperia's standard logic portfolio, designed specifically for noise-prone signal conditioning in industrial automation, automotive subsystems, and consumer electronics where robust Schmitt-trigger behavior is essential.
FAQ
What is the maximum recommended operating frequency for 74HC14PW,112 in an oscillator configuration?
The 74HC14PW,112 has no specified maximum oscillator frequency, but practical upper limits are governed by propagation delay (15 ns typ) and external RC values. At VCC = 4.5 V and CL = 50 pF, reliable operation up to ~10 MHz is achievable in ring oscillators; relaxation oscillators typically operate below 100 kHz due to RC time constant constraints.
Can 74HC14PW,112 inputs safely interface with 12 V signals?
Yes - its input clamp diodes allow connection to voltages up to VCC + 0.5 V. To interface with 12 V, use a series current-limiting resistor (e.g., 10 kΩ) to restrict IIK to ≤±20 mA, ensuring VI remains within absolute maximum ratings. Do not exceed 7 V input without external clamping.
How does temperature affect the Schmitt-trigger thresholds of 74HC14PW,112?
Thresholds vary linearly with VCC and moderately with temperature: VT+ shifts from 2.38 V (25 °C) to 2.25 V (-40 °C) and 2.15 V (+125 °C) at VCC = 4.5 V. Hysteresis (VH) decreases from 0.98 V to 0.85 V across that range, maintaining functional noise margin in all qualified conditions.
Is the exposed pad on the TSSOP14 package electrically connected?
No - the exposed pad in SOT402-1 is a thermal enhancement feature with no electrical connection. Nexperia specifies it may remain floating or be soldered to GND for improved thermal performance, but no electrical tie is required or implied in the pinout.
74HC14PW,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- Inverter
- Number of Circuits:
- 6
- Number of Inputs:
- 1
- Features:
- Schmitt Trigger
- Voltage - Supply:
- 2V ~ 6V
- Current - Quiescent (Max):
- 2 µA
- Current - Output High, Low:
- 5.2mA, 5.2mA
- Input Logic Level - Low:
- 0.3V ~ 1.2V
- Input Logic Level - High:
- 1.5V ~ 4.2V
- Max Propagation Delay @ V, Max CL:
- 21ns @ 6V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
74HC14PW,112 FAQ
1.How can I place an order for 74HC14PW,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC14PW,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 74HC14PW,112 reliable?
The price and inventory of 74HC14PW,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC14PW,112 is usually 5 days.
3.What payment methods are accepted for 74HC14PW,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC14PW,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC14PW,112?
74HC14PW,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC14PW,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 74HC14PW,112?
For technical support, including 74HC14PW,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC14PW,112 requirements.
6.How does Aetrix verify that 74HC14PW,112 is sourced from the original manufacturer or authorized distributors?
All 74HC14PW,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 74HC14PW,112 meets industry standards.
7.What is the process for return or replacement of 74HC14PW,112?
All 74HC14PW,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC14PW,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 74HC14PW,112 part is unused and in its original packaging.
Return procedure for 74HC14PW,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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