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NXP Semiconductors 74HCU04N,652
- Part No.:
- 74HCU04N,652
- Manufacturer:
- NXP Semiconductors
- Category:
- Gates and Inverters
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
74HCU04N,652.pdf
- Description:
- IC INVERTER 6CH 1-INP 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,173
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Product details
Overview
74HCU04N,652 from NXP Semiconductors is a hex unbuffered CMOS inverter IC operating across −40 °C to +125 °C, featuring balanced propagation delays (7 ns typical at 4.5 V/50 pF), input clamp diodes for overvoltage interface protection, and 3.5 pF input capacitance. It serves as a logic-level signal inverter in timing circuits, oscillator feedback paths, and waveform shaping stages.
For engineers reviewing the 74HCU04N,652 datasheet, 74HCU04N,652 pinout, 74HCU04N,652 application, or 74HCU04N,652 equivalent, key selection criteria include its unbuffered architecture enabling linear amplifier use, JEDEC JESD7A compliance, HBM ESD rating >2000 V, and DIP14 package compatibility with through-hole prototyping and legacy industrial control boards.
Technical Context
The 74HCU04N,652 implements six independent unbuffered inverters using high-speed CMOS technology, with no internal buffering between input and output-enabling direct use in crystal oscillator configurations and astable multivibrators. Its input clamp diodes allow safe interfacing to voltages exceeding VCC when used with current-limiting resistors.
It operates from 2.0 V to 6.0 V supply, delivers ±25 mA output drive, and maintains stable VIH/VIL thresholds across temperature (e.g., VIH = 3.6 V min at VCC = 3.0 V). Static power consumption is ultra-low: ICC ≤ 20 μA at VCC = 6.0 V and −40 °C to +125 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Hex unbuffered inverter - enables linear-mode operation for oscillators and amplifiers, unlike buffered variants. |
| Supply Voltage Range | 2.0 V to 6.0 V - supports mixed-voltage system interfacing and battery-powered designs down to 2 V. |
| Propagation Delay | 7 ns typical (VCC = 4.5 V, CL = 50 pF) - ensures precise timing in clock generation and pulse shaping. |
| Input Clamp Diodes | Integrated - permits safe connection to signals up to VCC + 0.5 V using external current-limiting resistors. |
| ESD Protection | HBM >2000 V, MM >200 V - meets industrial handling requirements without additional protection circuitry. |
| Operating Temperature | −40 °C to +125 °C - qualified for under-hood automotive modules, motor drives, and industrial PLCs. |
| Input Capacitance | 3.5 pF - minimizes loading on driving stages and preserves high-frequency signal integrity. |
Pinout & Package
DIP14 plastic dual in-line package (SOT27-1), 300-mil lead spacing, through-hole mountable, with 14 leads and standard 0.1-inch row pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A, 2A, 3A, 4A, 5A, 6A | Data input (six channels) | CMOS-compatible inputs with clamp diodes; accept TTL- or CMOS-level signals across full VCC range. |
| 1Y, 2Y, 3Y, 4Y, 5Y, 6Y | Data output (six channels) | Inverted outputs capable of sourcing/sinking ±25 mA; rail-to-rail swing within 0.26 V of rails at 4 mA load. |
| VCC | Positive supply | Single 2.0–6.0 V supply pin; powers all six inverters; requires local 100 nF decoupling near pin 14. |
| GND | Ground reference | Common 0 V return for all logic and power paths; must be low-impedance for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Unbuffered architecture | Enables linear-region biasing for crystal oscillators and analog amplifier applications without added phase delay. |
| JEDEC JESD7A compliance | Guarantees interoperability with industry-standard 74-series logic families and PCB layout practices. |
| Wide temperature operation | Validated performance from −40 °C to +125 °C supports deployment in engine control units and outdoor infrastructure. |
| Low static current | ICC ≤ 2 μA typical at 25 °C and VCC = 6.0 V - extends battery life in always-on sensor nodes. |
| Input overvoltage tolerance | Clamp diodes allow safe interface to 5 V signals on 3.3 V systems using simple series resistors (no level shifters required). |
Applications
| Crystal Oscillator Circuit | Linear Amplifier Stage |
|---|---|
Use Scenario: Generating stable clock signals for microcontrollers or communication peripherals using a parallel-resonant quartz crystal. IC Role / Device Role / Timing Role: Unbuffered inverter provides 180° phase shift and gain in Pierce oscillator topology; feedback resistor R1 sets DC bias point. Use Value: Eliminates need for discrete transistors or dedicated oscillator ICs; supports frequencies up to 1 MHz with C1/C2 tuning per Table 8. |
Use Scenario: Converting slow-rising digital signals into clean analog waveforms or building low-gain preamplifiers in sensor front-ends. IC Role / Device Role / Timing Role: Biased in linear region via feedback network (R1/R2) to operate as Class-A amplifier with open-loop gain ~20. Use Value: Achieves typical unity-gain bandwidth of 5 MHz with minimal external components; Vo(p-p) ≤ VCC − 2.0 V centered at 0.5 × VCC. |
| Astable Multivibrator | Waveform Shaping Interface |
Use Scenario: Generating square-wave clocks or timing pulses for LED flashers, relay drivers, or test equipment. IC Role / Device Role / Timing Role: Two cascaded inverters plus RC network form relaxation oscillator; period ≈ 2.2 × R × C. Use Value: Predictable frequency stability across temperature; avoids external timer ICs and reduces BOM count by 3+ components. |
Use Scenario: Cleaning up noisy or slow-edge signals from mechanical switches, encoders, or legacy industrial sensors before MCU input. IC Role / Device Role / Timing Role: Inverter stage sharpens rise/fall times (7–21 ns) and rejects sub-threshold noise via CMOS threshold hysteresis. Use Value: Improves noise margin by >1.2 V at VCC = 5.0 V; eliminates contact bounce artifacts without software debouncing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex inverter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HC04D,652 | Buffered architecture; higher propagation delay (19 ns typ at 4.5 V); no linear-mode capability. | Not suitable for crystal oscillators or linear amplifiers; limited to pure digital inversion. | Select when only digital signal inversion is needed and oscillator functionality is unnecessary. |
| SN74HCU04N | Identical electrical specs and pinout; Texas Instruments second-source version with same DIP14 package. | Drop-in replacement with identical thermal and mechanical behavior; validated for same industrial temp range. | Choose for supply chain diversification while maintaining full functional and layout compatibility. |
Compared with 74HC04D,652, the 74HCU04N,652 enables analog functions like oscillation and amplification due to its unbuffered design, while SN74HCU04N offers identical performance with alternate sourcing-making it ideal for long-lifecycle industrial designs requiring dual-source assurance.
Availability
74HCU04N,652 is available at Aetrix Electronics and suitable for industrial control panels, automotive body electronics, and legacy instrumentation systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HCU04N,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 leader focused on secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in logic, RF, and automotive-grade ICs.
The 74HCU04N,652 belongs to NXP's legacy 74HCU logic family, designed specifically for high-reliability, wide-temperature digital and mixed-signal applications where unbuffered gain and robust ESD performance are critical.
FAQ
What is the key functional difference between 74HCU04N,652 and standard 74HC04 inverters?
The 74HCU04N,652 uses an unbuffered inverter structure, allowing it to operate in the linear region for crystal oscillator and amplifier applications. Standard 74HC04 devices contain internal buffering that prevents stable linear biasing-making them unsuitable for such analog functions. This architectural distinction is confirmed in the Functional Description and Application Information sections of the NXP datasheet.
Can 74HCU04N,652 safely interface a 5 V signal to a 3.3 V powered system?
Yes. The 74HCU04N,652 includes integrated input clamp diodes, enabling safe interface to voltages exceeding VCC when used with a current-limiting resistor. For a 5 V input on a 3.3 V system, a 10 kΩ series resistor limits IIK to <200 μA-well below the ±20 mA absolute maximum rating-preserving device reliability without external protection.
What is the maximum operating frequency when using 74HCU04N,652 in a crystal oscillator configuration?
The 74HCU04N,652 supports crystal oscillator operation up to 1 MHz, as specified in Table 8 of the NXP datasheet for resonator-based designs. Performance depends on external R1/R2 values and load capacitors (C1/C2); for frequencies above 1 MHz, layout parasitics and gate propagation characteristics limit stability, and dedicated oscillator ICs are recommended.
Does 74HCU04N,652 require external pull-up or pull-down resistors on unused inputs?
No. Unused inputs on the 74HCU04N,652 must be tied to VCC or GND-floating inputs are prohibited due to CMOS susceptibility to noise-induced shoot-through current and potential latch-up. The datasheet explicitly states in Section 6 (Functional Description) that all inputs must be held at valid logic levels to ensure predictable operation and prevent excessive ICC.
Is the DIP14 package of 74HCU04N,652 RoHS compliant and lead-free?
Yes. Per NXP's product change notification and packaging documentation, the SOT27-1 (DIP14) package used for 74HCU04N,652 is lead-free and RoHS compliant, with matte tin lead finish and halogen-free molding compound. This is verified in NXP's official "Lead Finish and Packaging Material" reference documents for the 74HCU logic family.
74HCU04N,652 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74HCU
- 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:
- -
- 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:
- 1.7V ~ 4.8V
- Max Propagation Delay @ V, Max CL:
- 12ns @ 6V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-DIP
74HCU04N,652 FAQ
1.How can I place an order for 74HCU04N,652 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCU04N,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 74HCU04N,652 reliable?
The price and inventory of 74HCU04N,652 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCU04N,652 is usually 5 days.
3.What payment methods are accepted for 74HCU04N,652?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCU04N,652 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCU04N,652?
74HCU04N,652 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCU04N,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 74HCU04N,652?
For technical support, including 74HCU04N,652 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCU04N,652 requirements.
6.How does Aetrix verify that 74HCU04N,652 is sourced from the original manufacturer or authorized distributors?
All 74HCU04N,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 74HCU04N,652 meets industry standards.
7.What is the process for return or replacement of 74HCU04N,652?
All 74HCU04N,652 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCU04N,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 74HCU04N,652 part is unused and in its original packaging.
Return procedure for 74HCU04N,652:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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