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NXP Semiconductors HEF4081BT/AUJ
- Part No.:
- HEF4081BT/AUJ
- Manufacturer:
- NXP Semiconductors
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
HEF4081BT/AUJ.pdf
- Description:
- IC GATE AND 4CH 2-INP 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,061
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Product details
Overview
HEF4081BT/AUJ from Nexperia is a quad 2-input CMOS AND gate IC operating from 3.0 V to 15.0 V supply, featuring symmetrical output drive, input clamp diodes for overvoltage interface protection, and guaranteed operation from -40 °C to +125 °C. It delivers propagation delays as low as 15 ns at 15 V (with 50 pF load) and supports industrial control logic, power sequencing, and digital signal conditioning.
For engineers reviewing the HEF4081BT/AUJ datasheet, HEF4081BT/AUJ pinout, HEF4081BT/AUJ application, or HEF4081BT/AUJ equivalent, this page provides verified functional identity, validated SO14 pin mapping, temperature-rated static/dynamic specifications, ESD robustness data (HBM >2000 V, CDM >1000 V), and real-world logic-level interfacing guidance.
Technical Context
The HEF4081BT/AUJ implements four independent AND gates in a single CMOS silicon die with fully static operation and standardized output characteristics. Each gate accepts two inputs (nA/nB) and drives one complementary-swing output (nY), with all inputs protected by clamp diodes enabling safe interfacing to voltages exceeding VDD when used with current-limiting resistors.
It complies with JEDEC JESD13-B and supports three parametric voltage grades (5 V, 10 V, 15 V). Static parameters include VIH = 11.0 V and VIL = 4.0 V at VDD = 15 V, while dynamic behavior follows extrapolation formulas for tPHL/tPLH based on load capacitance (CL), ensuring predictable timing across supply and temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3.0 V to 15.0 V - Enables direct use in mixed-voltage systems including legacy 5 V, industrial 10 V, and high-headroom 15 V rails. |
| Propagation Delay (tPHL/tPLH) | 15 ns to 40 ns at VDD = 15 V, CL = 50 pF - Supports reliable 20+ MHz clocked logic in non-critical timing paths. |
| Input Clamp Diodes | Integrated - Allows safe connection of inputs to signals up to VDD + 0.5 V or down to -0.5 V using external current-limiting resistors. |
| ESD Robustness | HBM >2000 V, CDM >1000 V - Reduces need for external ESD protection in board-level designs handling manual handling or connector mating. |
| Operating Temperature | -40 °C to +125 °C - Qualified for under-hood automotive ancillaries, industrial motor controllers, and outdoor power electronics. |
| Output Drive Strength | IOL = 4.2 mA / IOH = -4.2 mA at VDD = 15 V - Sufficient to directly drive multiple 4000-series inputs or small LED indicators without buffering. |
| Input Leakage Current | ±1.0 μA max at +125 °C - Ensures stable logic levels in high-impedance sensing or battery-backed circuits over full temperature range. |
Pinout & Package
HEF4081BT/AUJ is housed in a plastic small outline package (SO14) per SOT108-1 standard: 14-pin, 3.9 mm body width, 1.27 mm pitch, with gull-wing leads and pin 1 index marker.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 8, 12 | 1A, 2A, 3A, 4A | Independent gate input A terminals - Accept TTL/CMOS-compatible logic levels; internally clamped to VSS/VDD. |
| 2, 6, 9, 13 | 1B, 2B, 3B, 4B | Independent gate input B terminals - Paired with corresponding A inputs to form four AND functions. |
| 3, 4, 10, 11 | 1Y, 2Y, 3Y, 4Y | Independent gate output terminals - Provide rail-to-rail CMOS swing with symmetrical sourcing/sinking capability. |
| 7 | VSS | Ground reference (0 V) - Must be connected to system common ground; serves as return path for all internal currents. |
| 14 | VDD | Positive supply rail - Supplies all four gates; decoupling capacitor (100 nF) recommended within 10 mm of this pin. |
Key Features
| Feature | Design Value |
|---|---|
| Fully static CMOS architecture | Zero static current draw at steady state - Eliminates supply current concerns in always-on logic monitoring circuits. |
| Wide supply voltage range (3–15 V) | Single part replaces multiple voltage-specific logic families - Simplifies BOM and reduces inventory SKUs. |
| Standardized symmetrical output characteristics | Matched rise/fall times and drive strength - Ensures consistent timing margins across all four gates in combinatorial networks. |
| JEDEC JESD13-B compliance | Guaranteed interoperability with other JEDEC-standard 4000-series logic - Enables drop-in replacement in legacy designs. |
| High noise immunity | VIH/VIL margins exceed 30% of VDD across full temperature range - Resists false triggering in electrically noisy industrial environments. |
Applications
| Industrial Control Logic | Power Sequencing Monitor |
|---|---|
Use Scenario: Enabling relay drivers only when both safety interlock and enable signal are asserted. IC Role / Device Role / Timing Role: Quad 2-input AND gate performing real-time hardware-level safety validation before actuation. Use Value: Provides fail-safe gating with no software dependency, leveraging rail-to-rail output swing to directly drive 5 V optocouplers or MOSFET gate drivers. |
Use Scenario: Verifying correct startup order of multiple DC-DC converters in telecom base station power supplies. IC Role / Device Role / Timing Role: Combining individual converter OK signals to generate a global "power good" status flag. Use Value: Delivers deterministic propagation delay (<40 ns at 15 V), ensuring precise timing alignment across distributed power rails without added latency. |
| Digital Signal Conditioning | Legacy System Interface |
Use Scenario: Filtering spurious noise pulses on sensor interrupt lines before feeding microcontroller GPIOs. IC Role / Device Role / Timing Role: Glitch suppression via AND-based pulse width discrimination (e.g., requiring ≥100 ns valid high). Use Value: Uses input clamp diodes and wide VDD range to interface 3.3 V sensors to 5 V MCU domains without level shifters. |
Use Scenario: Adapting 12 V industrial fieldbus signals to 5 V logic inputs in programmable logic controllers. IC Role / Device Role / Timing Role: Level translation and signal conditioning via resistor-limited input clamping. Use Value: Eliminates need for discrete Zener clamps or dedicated level translators by supporting VDD = 5 V while accepting 12 V inputs safely. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad 2-input AND gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD4081BE | Same logic function but TI-manufactured; wider -55 °C to +125 °C temp range; higher max supply (18 V); slightly slower tPLH (60 ns typ @ 5 V). | Preferred for extended temperature military/aerospace use; less suitable for high-speed 15 V systems due to timing degradation. | Select CD4081BE only if extended low-temp operation or 18 V absolute max rating is required; verify timing margins at target VDD/CL. |
| 74HC08D | Higher speed (tPD = 7 ns @ 5 V), lower VDD range (2–6 V), no input clamp diodes, HBM ESD = 2000 V (same class but unverified CDM). | Better for 5 V high-frequency digital systems; unsuitable for >6 V rails or overvoltage-tolerant interfaces. | Choose 74HC08D for speed-critical 5 V designs; avoid where input overvoltage protection or 10/15 V operation is needed. |
Compared with CD4081BE and 74HC08D, the HEF4081BT/AUJ uniquely balances wide supply range (3–15 V), integrated input clamping, and industrial temperature qualification (-40 °C to +125 °C), making it optimal for mixed-voltage industrial control and power management where robustness and flexibility outweigh raw speed.
Availability
HEF4081BT/AUJ is available at Aetrix Electronics and suitable for industrial control logic, power sequencing monitors, digital signal conditioning, and legacy system interface applications requiring stable component supply across extended temperature and voltage ranges.
Supply support for HEF4081BT/AUJ 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 leading semiconductor manufacturer specializing in high-performance logic, analog, and discrete components, with core expertise in energy-efficient and robust standard products.
The HEF4081BT/AUJ belongs to Nexperia's HEF4000B logic family, designed specifically for industrial and automotive-adjacent applications demanding wide supply range, high noise immunity, and extended temperature reliability.
FAQ
What is the maximum supply voltage rating for HEF4081BT/AUJ?
The HEF4081BT/AUJ has an absolute maximum supply voltage (VDD) of +18 V, though its recommended operating range is 3.0 V to 15.0 V per the datasheet. Operation above 15.0 V is not characterized for timing or drive strength and may compromise long-term reliability. Always observe the derating curve for total power dissipation above 100 °C ambient.
Does HEF4081BT/AUJ support direct interfacing to 12 V signals when powered from 5 V?
Yes - the HEF4081BT/AUJ includes integrated input clamp diodes that allow safe interfacing to voltages up to VDD + 0.5 V (i.e., 5.5 V) or down to -0.5 V. To connect a 12 V signal, use a series current-limiting resistor (e.g., 10 kΩ) to restrict IIK to ≤ ±10 mA, enabling robust level translation without external protection components.
What is the typical propagation delay of HEF4081BT/AUJ at 10 V supply and 50 pF load?
At VDD = 10 V and CL = 50 pF, the HEF4081BT/AUJ exhibits typical propagation delays of tPHL = 25 ns and tPLH = 20 ns, derived from the extrapolation formulas in Table 7: tPHL = 14 ns + (0.23 ns/pF) × CL and tPLH = 9 ns + (0.23 ns/pF) × CL. These values are measured at Tamb = 25 °C and assume proper decoupling and layout.
Is HEF4081BT/AUJ qualified for automotive applications?
No - the HEF4081BT/AUJ is specified for industrial temperature range (-40 °C to +125 °C) but is not AEC-Q100 qualified or automotive-grade screened. Nexperia explicitly states in its legal disclaimers that non-automotive qualified products like HEF4081BT/AUJ are not suitable for safety-critical automotive use unless separately validated by the customer.
How does the input leakage current of HEF4081BT/AUJ vary with temperature?
The HEF4081BT/AUJ input leakage current (II) remains ≤ ±0.1 μA at 25 °C and ≤ ±1.0 μA at +125 °C (VDD = 15 V), as specified in Table 6. This controlled drift ensures stable logic thresholds in high-impedance circuits such as RC timing networks or battery-monitoring comparators across the full operating range.
HEF4081BT/AUJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 4000B
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- AND Gate
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 3V ~ 15V
- Current - Quiescent (Max):
- 1 µA
- Current - Output High, Low:
- 3.4mA, 3.4mA
- Input Logic Level - Low:
- 1.5V ~ 4V
- Input Logic Level - High:
- 3.5V ~ 11V
- Max Propagation Delay @ V, Max CL:
- 40ns @ 15V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
HEF4081BT/AUJ FAQ
1.How can I place an order for HEF4081BT/AUJ through Aetrix?
Please submit a Request for Quotation (RFQ) for HEF4081BT/AUJ 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 HEF4081BT/AUJ reliable?
The price and inventory of HEF4081BT/AUJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HEF4081BT/AUJ is usually 5 days.
3.What payment methods are accepted for HEF4081BT/AUJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HEF4081BT/AUJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HEF4081BT/AUJ?
HEF4081BT/AUJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HEF4081BT/AUJ 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 HEF4081BT/AUJ?
For technical support, including HEF4081BT/AUJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HEF4081BT/AUJ requirements.
6.How does Aetrix verify that HEF4081BT/AUJ is sourced from the original manufacturer or authorized distributors?
All HEF4081BT/AUJ 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 HEF4081BT/AUJ meets industry standards.
7.What is the process for return or replacement of HEF4081BT/AUJ?
All HEF4081BT/AUJ units undergo pre-shipment inspection (PSI). If there is an issue with HEF4081BT/AUJ, 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 HEF4081BT/AUJ part is unused and in its original packaging.
Return procedure for HEF4081BT/AUJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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