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NXP Semiconductors 74HC14N,652
- Part No.:
- 74HC14N,652
- Manufacturer:
- NXP Semiconductors
- Category:
- Gates and Inverters
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
74HC14N,652.pdf
- Description:
- IC INVERT SCHMITT 6CH 1INP 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,764
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Product details
Overview
74HC14N,652 from NXP Semiconductors is a hex inverting Schmitt trigger IC in a 14-lead DIP package, delivering six independent hysteresis-input buffers with propagation delay as low as 12 ns at 6 V and input threshold hysteresis up to 1.6 V. It transforms slow-rising/falling signals into clean digital outputs and operates across −40 °C to +125 °C for industrial timing and waveform conditioning.
For engineers reviewing the 74HC14N,652 datasheet, 74HC14N,652 pinout, 74HC14N,652 application, or 74HC14N,652 equivalent, key selection criteria include supply voltage range (2–6 V), Schmitt-trigger input thresholds (VT+ = 2.1–4.2 V, VT− = 1.2–2.6 V at VCC = 6 V), output drive capability (±5.2 mA), thermal rating (125 °C), and DIP14 mechanical compatibility with legacy through-hole designs.
Technical Context
The 74HC14N,652 implements six identical CMOS inverting Schmitt triggers with independent inputs (pins 1,3,5,9,11,13) and outputs (pins 2,4,6,8,10,12), each featuring asymmetric hysteresis (VH = 0.6–1.6 V) and rail-to-rail output swing. Its architecture enables noise-immune signal conditioning without external feedback components.
It complies with JEDEC Std 7A, is pin-compatible with LSTTL, and uses standard CMOS logic levels - not TTL-compatible input thresholds. The device draws only 2 µA typical ICC at VCC = 6 V and supports dynamic operation up to 100 MHz (limited by propagation delay and load capacitance).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.0 V to 6.0 V - supports wide-range industrial power rails including 3.3 V and 5 V systems |
| Propagation Delay | 12 ns max at VCC = 6 V, CL = 50 pF - enables reliable timing in sub-40 MHz clock-shaping applications |
| Hysteresis Voltage | 0.6 V to 1.6 V (VCC = 6 V) - provides robust noise margin against EMI and contact bounce in sensor interfaces |
| Output Drive | ±5.2 mA at VCC = 6 V - sufficient to directly drive LEDs, small relays, or fan-out to ≥10 74HC inputs |
| Operating Temp | −40 °C to +125 °C - qualified for under-hood, motor control, and industrial PLC environments |
| Input Capacitance | 3.5 pF - minimizes loading on high-impedance sources like crystal oscillators or RC networks |
| ESD Protection | HBM >2000 V, MM >200 V - withstands handling and board-level electrostatic events without shielding |
Pinout & Package
74HC14N,652 is supplied in a plastic dual in-line package (DIP14), SOT27-1, with 300-mil lead spacing and through-hole mounting. Body dimensions: 19.5 mm × 6.48 mm × 3.60 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 9, 11, 13 | Data Input (nA) | Schmitt-trigger input for each of six independent inverters; accepts slow edges and rejects noise |
| 2, 4, 6, 8, 10, 12 | Data Output (nY) | Inverted, jitter-free CMOS output; drives capacitive loads up to 50 pF within spec |
| 7 | GND | Ground reference (0 V); must be low-impedance connection to minimize switching noise |
| 14 | VCC | Positive supply rail; bypass capacitor (100 nF ceramic) required near pin for stable operation |
Key Features
| Feature | Design Value |
|---|---|
| Six independent Schmitt triggers | Enables simultaneous conditioning of multiple noisy signals (e.g., encoder A/B/Z, limit switches, reset lines) |
| Rail-to-rail CMOS output swing | Ensures full logic-level compatibility with downstream 74HC, 74AHC, and microcontroller GPIOs |
| Low static current (2 µA typ) | Supports battery-backed or energy-sensitive applications such as remote sensors and standby circuits |
| JEDEC 7A compliance | Guarantees interoperability with legacy TTL-based systems and test equipment |
| 14-pin DIP footprint | Allows direct replacement of obsolete 74LS14 or 74F14 in existing through-hole PCBs without layout change |
Applications
| Waveform Shaping | Pulse Generation |
|---|---|
Use Scenario: Converting sine-wave oscillator output or analog sensor output into square waves for microcontroller capture or counter input. IC Role / Device Role / Timing Role: Signal conditioner and edge sharpener; converts slow transitions into monotonic, jitter-free logic edges. Use Value: Eliminates metastability in digital sampling and enables accurate frequency measurement of low-slew-rate sources. | Use Scenario: Building astable multivibrators using external R-C networks for clock generation in non-critical timing subsystems. IC Role / Device Role / Timing Role: Core inverter element in relaxation oscillator topology with predictable K-factor (≈1.0 for 74HC14). Use Value: Provides low-cost, component-minimal clock source with frequency tunable via single resistor and capacitor. |
| Monostable Triggering | Noise-Immune Switch Debouncing |
Use Scenario: Generating fixed-duration pulses from momentary switch closures or asynchronous event triggers in control logic. IC Role / Device Role / Timing Role: Inverting Schmitt buffer feeding RC differentiator network to produce precise pulse width. Use Value: Delivers consistent 10–100 ms pulse widths independent of switch bounce duration or contact material wear. | Use Scenario: Debouncing mechanical pushbuttons, rotary encoders, or limit switches before feeding to FPGA or MCU interrupt pins. IC Role / Device Role / Timing Role: Input-stage hysteresis filter that rejects transients <1.2 V while passing valid logic transitions. Use Value: Removes false triggers caused by contact chatter without software polling or additional RC filtering components. |
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 |
|---|---|---|---|
| 74HCT14N,652 | TTL-compatible input thresholds (VT+ ≈ 1.4 V, VT− ≈ 0.9 V at VCC = 4.5 V); otherwise identical pinout, package, and function | Better suited for mixed 5 V TTL/CMOS systems where input signals originate from 74LS or microcontroller outputs with weak drive | Select when interfacing with legacy TTL logic families or low-voltage microcontrollers lacking full CMOS swing |
| SN74HC14N | Same logic function and pinout; manufactured by Texas Instruments; slightly higher max ICC (40 µA vs. 20 µA at 125 °C) | Identical use cases but subject to TI's packaging and qualification standards (e.g., different moisture sensitivity level) | Choose for second-source assurance or when TI's distribution channels offer better lead time or volume pricing |
Compared with 74HCT14N,652 and SN74HC14N, the 74HC14N,652 offers superior noise immunity at higher supply voltages due to wider hysteresis (up to 1.6 V), lower quiescent current at temperature extremes, and guaranteed operation up to 6 V - making it optimal for industrial 5 V systems with marginal power regulation.
Availability
74HC14N,652 is available at Aetrix Electronics and suitable for industrial control panels, motor drive interface boards, and embedded sensor signal conditioning requiring stable component supply across extended temperature ranges.
Supply support for 74HC14N,652 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The 74HC14N,652 belongs to NXP's legacy HC logic family, designed specifically for robust, low-power digital signal conditioning in harsh environments where noise immunity and wide operating margins are critical.
FAQ
What is the maximum supply voltage rating for the 74HC14N,652?
The absolute maximum supply voltage (VCC) for the 74HC14N,652 is +7.0 V, but the recommended operating range is 2.0 V to 6.0 V per the datasheet. Operation above 6.0 V risks exceeding internal oxide breakdown limits and is not guaranteed for functionality, reliability, or lifetime. For sustained use, 6.0 V is the practical upper limit.
Does the 74HC14N,652 support 3.3 V logic systems?
Yes, the 74HC14N,652 fully supports 3.3 V operation: its recommended VCC range includes 2.0–6.0 V, and all electrical characteristics (VOH, VOL, propagation delay, hysteresis) are specified down to 2.0 V. At 3.3 V, VT+ ≈ 1.3 V and VT− ≈ 0.6 V, providing ~0.7 V hysteresis - sufficient for most 3.3 V sensor and microcontroller interface applications.
Can the 74HC14N,652 replace a 74LS14 in an existing design?
Yes, the 74HC14N,652 is pin-compatible with 74LS14 and meets JEDEC Std 7A for LSTTL compatibility. However, note that its input thresholds are CMOS-based (not TTL), so it requires ≥2.0 V for a valid HIGH input. If driven by weak 74LS outputs (<2.4 V), verify signal margins; adding pull-up resistors may be necessary for marginal cases.
What is the typical propagation delay of the 74HC14N,652 at 5 V?
At VCC = 5.0 V and CL = 15 pF, the typical propagation delay (tpd) of the 74HC14N,652 is 12 ns. This value is measured from input transition (10%–90%) to output transition (50% level) and applies across all six channels under standard test conditions defined in Figure 6 of the datasheet.
Is the 74HC14N,652 RoHS compliant and halogen-free?
Yes, the 74HC14N,652 is RoHS compliant (2011/65/EU) and halogen-free per NXP's product compliance documentation. The DIP14 package (SOT27-1) uses lead-free matte tin plating and green molding compound, meeting JEDEC J-STD-609 Class 1 requirements for bromine and chlorine content.
74HC14N,652 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74HC
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- 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:
- Through Hole
- Supplier Device Package:
- 14-DIP
74HC14N,652 FAQ
1.How can I place an order for 74HC14N,652 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC14N,652 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 74HC14N,652 reliable?
The price and inventory of 74HC14N,652 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC14N,652 is usually 5 days.
3.What payment methods are accepted for 74HC14N,652?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC14N,652 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC14N,652?
74HC14N,652 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC14N,652 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 74HC14N,652?
For technical support, including 74HC14N,652 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC14N,652 requirements.
6.How does Aetrix verify that 74HC14N,652 is sourced from the original manufacturer or authorized distributors?
All 74HC14N,652 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 74HC14N,652 meets industry standards.
7.What is the process for return or replacement of 74HC14N,652?
All 74HC14N,652 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC14N,652, 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 74HC14N,652 part is unused and in its original packaging.
Return procedure for 74HC14N,652:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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