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Texas Instruments CD74HC14PW
- Part No.:
- CD74HC14PW
- Manufacturer:
- Texas Instruments
- Category:
- Gates and Inverters
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
CD74HC14PW.pdf
- Description:
- IC INVERTER 6CH 1-INP 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,291
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Product details
Overview
CD74HC14PW from Texas Instruments is a hex Schmitt-trigger inverter IC in TSSOP-14 package, operating from 2 V to 6 V supply, with –55°C to +125°C temperature range, 6 independent gates, and hysteresis (ΔVT = 0.6 V typical at 6 V) for noise-immune signal conditioning in industrial control interfaces.
For engineers reviewing the CD74HC14PW datasheet, CD74HC14PW pinout, CD74HC14PW application, or CD74HC14PW equivalent, this page delivers verified functional identity, confirmed TSSOP-14 pin mapping, real-world switching performance (tpd = 23 ns typical at 6 V), thermal resistance (RθJA = 151.7 °C/W), and validated alternatives for robust design-in and BOM continuity.
Technical Context
This device implements six independent CMOS inverters, each with Schmitt-trigger inputs enabling reliable logic-level translation of slow-rising or noisy signals. Its balanced push-pull outputs source/sink up to ±4 mA (at VOH/VOL specs) and support fanout of 10 LSTTL loads.
The input hysteresis (ΔVT = 0.4–1.6 V across VCC range) ensures stable switching despite input noise or slow edges, while the 10 pF input capacitance and 20 pF power dissipation capacitance per gate define dynamic loading behavior in high-speed digital interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 6 V - enables direct interface with 3.3 V and 5 V logic families without level shifters |
| Operating Temperature | –55°C to +125°C - qualified for automotive under-hood and industrial motor-control environments |
| Propagation Delay (tpd) | 23 ns typical at 6 V, CL = 50 pF - supports >10 MHz clock inversion in timing-critical paths |
| Hysteresis (ΔVT) | 0.6 V typical at 6 V - rejects noise spikes ≤600 mV peak-to-peak on input signals |
| Output Drive (IOH/IOL) | ±4 mA at 4.5 V - sufficient to drive multiple CMOS inputs or small capacitive loads (<70 pF) |
| Input Capacitance (Ci) | 10 pF - minimizes loading on upstream signal sources such as microcontroller GPIOs |
| Power Dissipation Cap. (Cpd) | 20 pF per gate - used to calculate dynamic power consumption in high-frequency toggle applications |
Pinout & Package
TSSOP-14 package (5.00 mm × 4.40 mm body size), 0.65 mm lead pitch, thin shrink small-outline profile suitable for space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A, 2A, 3A, 4A, 5A, 6A | Input | Schmitt-trigger input for corresponding inverter channel; must be terminated to VCC or GND if unused |
| 1Y, 2Y, 3Y, 4Y, 5Y, 6Y | Output | Inverted logic output with CMOS-compatible voltage levels; can be left floating if unused |
| VCC (Pin 14) | Power Supply | Positive supply rail - requires local 0.1 µF bypass capacitor placed adjacent to pin |
| GND (Pin 7) | Ground Reference | Return path for all internal logic and output currents - low-impedance connection critical for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | Provides 0.6 V typical hysteresis at 6 V, enabling reliable debouncing of mechanical switches without external RC networks |
| Wide supply range (2–6 V) | Allows single-device compatibility across 3.3 V microcontrollers and legacy 5 V systems without voltage translation |
| –55°C to +125°C operation | Validated for use in extended-temperature industrial automation and automotive engine-control modules |
| Low ICC (2 µA typical) | Reduces quiescent current in battery-backed or always-on monitoring circuits where standby power matters |
| CMOS push-pull outputs | Delivers rail-to-rail output swing and symmetrical rise/fall times (13 ns typical at 6 V, CL = 50 pF) |
Applications
| Switch Debounce Circuit | Signal Edge Sharpening |
|---|---|
Use Scenario: Mechanical pushbutton connected to a microcontroller GPIO with no hardware filtering. IC Role / Device Role / Timing Role: CD74HC14PW acts as a noise-immune digital conditioner, converting slow, bouncing switch transitions into clean, monotonic logic edges. Use Value: Eliminates need for software debouncing delays or external RC filters, reducing firmware complexity and improving real-time response. |
Use Scenario: Sine-wave oscillator output fed into a digital counter requiring square-wave clock input. IC Role / Device Role / Timing Role: CD74HC14PW converts analog-like waveforms into precise digital clocks via Schmitt-trigger thresholding and inversion. Use Value: Enables accurate frequency division and timing synchronization without external comparators or op-amps. |
| Digital Level Translation | Noise-Immune Clock Inversion |
Use Scenario: Interfacing a 3.3 V FPGA I/O bank to a 5 V legacy peripheral with marginal input thresholds. IC Role / Device Role / Timing Role: CD74HC14PW serves as a bidirectional voltage-tolerant inverter, leveraging its 2–6 V VCC range and Schmitt input to absorb amplitude variation. Use Value: Provides deterministic logic-level conversion without dedicated level-shifter ICs or resistor dividers. |
Use Scenario: Generating complementary clock phases for dual-edge triggered logic or differential signaling paths. IC Role / Device Role / Timing Role: CD74HC14PW inverts and cleans up a noisy system clock before distribution to sensitive downstream logic blocks. Use Value: Improves jitter margin by suppressing sub-threshold noise that could cause false triggering in flip-flops or PLLs. |
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 |
|---|---|---|---|
| SN74HC14PWR | Same logic function, identical TSSOP-14 package, but TI's newer production variant with updated MSL rating (Level-1-260C-UNLIM) and RoHS-compliant NIPDAU finish | Drop-in replacement for new designs; not recommended for legacy qualification where CD74HC14PW-specific test data is required | Select SN74HC14PWR for new designs requiring full RoHS compliance and latest TI manufacturing process controls. |
| MC74HC14ADTR2G | ON Semiconductor part in TSSOP-14; same VCC range and temperature grade, but higher RθJA (160 °C/W vs. 151.7 °C/W) and slightly lower hysteresis (ΔVT = 0.5 V typical at 6 V) | Acceptable for non-thermal-limited applications; may require derating in high-ambient or high-density layouts | Choose MC74HC14ADTR2G only when dual-sourcing is mandated and thermal margin exceeds 10 °C at max load. |
Compared with CD74HC14PW, SN74HC14PWR offers identical electrical behavior with enhanced manufacturability, while MC74HC14ADTR2G provides second-source availability at minor thermal and hysteresis trade-offs - both require validation against specific board-level thermal and noise requirements.
Availability
CD74HC14PW is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and programmable logic interface circuits requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for CD74HC14PW 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions, with over 90 years of innovation in high-reliability IC design and manufacturing.
The CD74HC14PW belongs to TI's legacy HC logic family, engineered for robustness in harsh environments and designed to deliver predictable Schmitt-trigger performance across wide voltage and temperature ranges for industrial and automotive signal conditioning.
FAQ
What is the maximum capacitive load the CD74HC14PW can drive while maintaining specified tpd?
The CD74HC14PW is characterized for CL = 50 pF in its switching specifications, with tpd = 23 ns typical at 6 V. Driving loads >70 pF increases propagation delay nonlinearly and may degrade noise immunity; TI recommends limiting total load to ≤70 pF or adding a series resistor to limit output current per Section 6.1 absolute ratings. For CD74HC14PW, exceeding this value risks violating VOL/VOH specs under heavy capacitive loading.
Does the CD74HC14PW require external pull-up or pull-down resistors on unused inputs?
Unused inputs on the CD74HC14PW must be terminated to either VCC or GND - directly wired, not through resistors - to prevent floating states that cause excessive current draw and potential oscillation. TI's datasheet explicitly states termination "can be directly terminated" for completely unused inputs; 10-kΩ resistors are only advised when inputs are intermittently used. Leaving any input unconnected violates CD74HC14PW reliability guidelines.
Is the CD74HC14PW pin-compatible with the SN74HC14PWR?
Yes, the CD74HC14PW and SN74HC14PWR share identical TSSOP-14 pinout, electrical specifications, and functional behavior. Both have the same 14-pin layout, VCC on Pin 14, GND on Pin 7, and matched inverter channel assignments (1A/1Y through 6A/6Y). The SN74HC14PWR is TI's actively produced successor with identical pin-to-pin compatibility and updated packaging standards.
What is the significance of the 'G4' suffix in CD74HC14PWRG4.A?
The 'G4' suffix in CD74HC14PWRG4.A indicates TI's green packaging standard: lead-free (Pb-free), RoHS-compliant finish with NiPdAu (nickel-palladium-gold) or NiPdAu/Sn (tin) lead termination. It does not affect CD74HC14PW functionality or pinout - it reflects environmental compliance and surface-mount reflow compatibility per JEDEC Level-1 standards. The base CD74HC14PW is obsolete, but CD74HC14PWRG4.A remains active and fully interchangeable.
Can the CD74HC14PW operate reliably at 2.0 V supply with full logic swing?
Yes, the CD74HC14PW is fully specified down to 2.0 V: VOH = 1.9 V (min) and VOL = 0.1 V (max) at IOH/IOL = ±20 µA, confirming rail-to-rail output swing capability. Input thresholds scale accordingly (VT+ = 0.7 V, VT− = 0.3 V), preserving hysteresis margin. This enables CD74HC14PW use in ultra-low-voltage battery-powered systems where 2.0 V operation is mandatory.
CD74HC14PW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- 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:
- 23ns @ 6V, 50pF
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
CD74HC14PW FAQ
1.How can I place an order for CD74HC14PW through Aetrix?
Please submit a Request for Quotation (RFQ) for CD74HC14PW 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 CD74HC14PW reliable?
The price and inventory of CD74HC14PW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD74HC14PW is usually 5 days.
3.What payment methods are accepted for CD74HC14PW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD74HC14PW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD74HC14PW?
CD74HC14PW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD74HC14PW 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 CD74HC14PW?
For technical support, including CD74HC14PW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD74HC14PW requirements.
6.How does Aetrix verify that CD74HC14PW is sourced from the original manufacturer or authorized distributors?
All CD74HC14PW 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 CD74HC14PW meets industry standards.
7.What is the process for return or replacement of CD74HC14PW?
All CD74HC14PW units undergo pre-shipment inspection (PSI). If there is an issue with CD74HC14PW, 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 CD74HC14PW part is unused and in its original packaging.
Return procedure for CD74HC14PW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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