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Nexperia USA Inc. 74HCU04DB,112
- Part No.:
- 74HCU04DB,112
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 14-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
74HCU04DB,112.pdf
- Description:
- IC INVERTER 6CH 1-INP 14SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,559
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Product details
Overview
74HCU04DB,112 from Nexperia is a hex unbuffered CMOS inverter IC designed for logic-level signal inversion in low-power digital systems. It features six independent inverters, operates across 2.0 V to 6.0 V supply, delivers balanced propagation delays (6 ns typ. at VCC = 6.0 V, CL = 50 pF), and supports industrial temperature range (−40 °C to +125 °C). It is commonly used in crystal oscillator circuits, linear amplifier biasing, and astable multivibrator designs.
For engineers reviewing the 74HCU04DB,112 datasheet, 74HCU04DB,112 pinout, 74HCU04DB,112 application, or 74HCU04DB,112 equivalent, key selection considerations include unbuffered gate architecture for analog-compatible gain, input clamp diodes enabling overvoltage-tolerant interfacing, wide VCC range flexibility, and SO14 package compatibility with legacy PCB footprints.
Technical Context
The 74HCU04DB,112 implements six independent unbuffered CMOS inverter stages-each consisting of a single P-channel and N-channel MOSFET pair-enabling direct use in analog applications like crystal oscillators and linear amplifiers. Its unbuffered structure eliminates internal stage isolation, resulting in symmetrical rise/fall times and high small-signal gain near threshold.
Input clamp diodes allow safe interface to signals exceeding VCC when used with current-limiting resistors; output drive capability is ±25 mA per inverter under recommended conditions. The device complies with JEDEC JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V), and meets HBM ESD >2000 V and CDM >1000 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 2.0 V to 6.0 V - Enables interoperability across 3.3 V and 5 V logic domains and battery-powered systems down to 2 V. |
| Propagation delay | 6 ns typical at VCC = 6.0 V, CL = 50 pF - Supports reliable operation up to ~50 MHz fundamental frequency in oscillator loops. |
| Input voltage thresholds | VIH = 3.6 V, VIL = 0.9 V at VCC = 4.5 V - Provides robust noise margins (>1.3 V) in noisy industrial environments. |
| Output drive | ±25 mA per inverter - Sufficient to directly drive multiple CMOS inputs or small capacitive loads without external buffers. |
| Operating temperature | −40 °C to +125 °C - Qualified for under-hood automotive modules, industrial PLCs, and outdoor embedded controllers. |
| Power dissipation | 500 mW max (SO14) - Allows sustained operation in compact enclosures with minimal thermal derating below 100 °C. |
| Input capacitance | 3.5 pF - Minimizes loading on high-frequency clock or sensor signal sources in timing-critical paths. |
Pinout & Package
74HCU04DB,112 is packaged in SO14 (SOT108-1): plastic small outline, 14-lead, 3.9 mm body width, with standard 1.27 mm lead pitch and gull-wing terminations.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 9, 11, 13 | Input (1A–6A) | CMOS gate inputs with integrated clamp diodes - permit safe connection to voltages beyond VCC when series current limiting is applied. |
| 2, 4, 6, 8, 10, 12 | Output (1Y–6Y) | Inverted logic outputs with rail-to-rail swing - deliver full VCC/0 V transitions and support fan-out to ≥10 74HC inputs. |
| 7 | GND | Primary ground reference for all internal circuitry and I/O - must be low-impedance to maintain noise immunity and switching integrity. |
| 14 | VCC | Single positive supply rail - powers all six inverters; no separate VDD/VSS split required; decoupling capacitor essential at point-of-load. |
Key Features
| Feature | Design Value |
|---|---|
| Unbuffered inverter topology | Enables analog-mode operation (e.g., crystal oscillator biasing, linear amplifier) due to absence of internal buffering stages. |
| Wide VCC range (2.0–6.0 V) | Supports direct integration into mixed-voltage systems without level shifters - ideal for battery-backed or multi-rail embedded designs. |
| High noise immunity | Guaranteed 40% VCC noise margin at VCC = 4.5 V - ensures reliable logic decision making in electrically harsh industrial settings. |
| Latch-up immunity | Exceeds 100 mA per JESD78 Class II Level B - prevents destructive latch-up during transient overvoltage or ESD events. |
| Thermal stability | Specified across −40 °C to +125 °C with monotonic parameter drift - enables use in engine control units and power converters without derating. |
Applications
| Crystal Oscillator | Linear Amplifier |
|---|---|
Use Scenario: Generating stable clock signals using a quartz crystal and two inverters in a Pierce configuration. IC Role / Device Role / Timing Role: First inverter provides DC bias and gain; second inverts phase to sustain oscillation; remaining inverters buffer or divide output. Use Value: Leverages unbuffered architecture for predictable loop gain and low phase noise - achieves <±100 ppm frequency stability at 1–2 MHz. |
Use Scenario: Building a low-noise, rail-to-rail op-amp substitute for sensor signal conditioning or audio pre-amplification. IC Role / Device Role / Timing Role: Single inverter biased in linear region via feedback resistors; operates as high-gain transconductance amplifier. Use Value: Delivers ~20× open-loop gain and 5 MHz unity-gain bandwidth at VCC = 6.0 V - suitable for thermistor or piezo sensor interfaces. |
| Astable Multivibrator | Digital Logic Inversion |
Use Scenario: Generating square-wave clock or timing pulses using RC feedback between two inverters. IC Role / Device Role / Timing Role: Two cascaded inverters with RC network form relaxation oscillator; third inverter cleans up duty cycle. Use Value: Achieves tunable frequency from 3 kHz to 600 kHz using external R/C - eliminates need for dedicated timer ICs in cost-sensitive designs. |
Use Scenario: Level-shifting, signal polarity correction, or bus driving in microcontroller peripheral interfaces. IC Role / Device Role / Timing Role: Each inverter independently inverts one bit of parallel data, control line, or enable signal in digital subsystems. Use Value: Six independent gates reduce component count versus discrete solutions - supports simultaneous inversion of SPI CS#, UART RTS, and reset lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex inverter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HC04PW,118 | Buffered architecture; higher drive strength (±25 mA vs. ±25 mA), but lower small-signal gain and no analog-mode usability. | Not suitable for crystal oscillator or linear amplifier use due to internal buffering and reduced transconductance. | Select when only digital inversion is needed and higher noise immunity at 5 V is prioritized over analog versatility. |
| SN74LVC04APWR | 3.3 V only (1.65–3.6 V); lower VCC tolerance; improved speed (4.5 ns typ.), but lacks input clamp diodes. | Cannot interface safely to >3.6 V signals without external protection; unsuitable for mixed-voltage or overvoltage-prone environments. | Select for high-speed 3.3 V-only systems where board space is constrained and analog operation is unnecessary. |
Compared with 74HC04PW,118 and SN74LVC04APWR, the 74HCU04DB,112 uniquely supports analog-mode applications and overvoltage-tolerant interfacing - making it the only choice among the three for crystal oscillators, linear amplifiers, and legacy 5 V/2.5 V mixed-rail designs.
Availability
74HCU04DB,112 is available at Aetrix Electronics and suitable for industrial control systems, automotive body electronics, and consumer appliance timing circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HCU04DB,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 headquartered in Nijmegen, Netherlands, specializing in high-performance, energy-efficient logic, analog, and discrete components for automotive, industrial, and consumer markets.
The 74HCU04DB,112 belongs to Nexperia's HCU logic family - engineered specifically for applications demanding unbuffered gate behavior, wide supply flexibility, and robust operation in harsh thermal and electrical environments.
FAQ
Can the 74HCU04DB,112 be used as a linear amplifier?
Yes - its unbuffered CMOS structure allows stable DC biasing in the transition region. With appropriate feedback resistors (e.g., R1 = 1 MΩ, R2 = 10 kΩ), it functions as a rail-to-rail amplifier with ~20× gain and 5 MHz bandwidth at VCC = 6.0 V, as validated in Nexperia Application Note AN107.
What is the maximum operating frequency in an oscillator circuit?
While not a clock generator IC, the 74HCU04DB,112 reliably sustains oscillation up to 2 MHz in Pierce configurations with standard AT-cut crystals. Performance depends on load capacitance, crystal ESR, and feedback resistor values - typical designs use 12–22 pF load caps and 1–10 MΩ bias resistors.
Does it support 3.3 V logic levels?
Yes - the 74HCU04DB,112 is fully specified from 2.0 V to 6.0 V, including 3.3 V operation. At VCC = 3.3 V, VIH = 2.3 V and VIL = 0.99 V ensure compatibility with standard 3.3 V CMOS outputs and provide >1.3 V noise margin.
Is the SO14 package RoHS compliant and lead-free?
Yes - the 74HCU04DB,112 in SO14 (SOT108-1) packaging meets RoHS Directive 2011/65/EU and is lead-free, halogen-free, and compliant with Nexperia's environmental policy. Terminal finish is matte tin, and reflow profile follows J-STD-020 Rev. E.
74HCU04DB,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCU
- Package/Case:
- 14-SSOP (0.209", 5.30mm Width)
- 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:
- Surface Mount
- Supplier Device Package:
- 14-SSOP
74HCU04DB,112 FAQ
1.How can I place an order for 74HCU04DB,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCU04DB,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 74HCU04DB,112 reliable?
The price and inventory of 74HCU04DB,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCU04DB,112 is usually 5 days.
3.What payment methods are accepted for 74HCU04DB,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCU04DB,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCU04DB,112?
74HCU04DB,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCU04DB,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 74HCU04DB,112?
For technical support, including 74HCU04DB,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCU04DB,112 requirements.
6.How does Aetrix verify that 74HCU04DB,112 is sourced from the original manufacturer or authorized distributors?
All 74HCU04DB,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 74HCU04DB,112 meets industry standards.
7.What is the process for return or replacement of 74HCU04DB,112?
All 74HCU04DB,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCU04DB,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 74HCU04DB,112 part is unused and in its original packaging.
Return procedure for 74HCU04DB,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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