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Nexperia USA Inc. HEF4081BT,652
- Part No.:
- HEF4081BT,652
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
HEF4081BT,652.pdf
- Description:
- IC GATE AND 4CH 2-INP 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,317
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Product details
Overview
HEF4081BT,652 from Nexperia is a quad 2-input CMOS AND gate IC in SO14 package, operating across 3.0 V to 15.0 V supply, with propagation delays as low as 15 ns at 15 V and guaranteed operation from −40 °C to +125 °C. It features input clamp diodes enabling overvoltage-tolerant interfacing, symmetrical output drive (±4.2 mA at 15 V), and JEDEC JESD13-B compliance for industrial control logic, power sequencing, and digital signal conditioning.
For engineers reviewing the HEF4081BT,652 datasheet, HEF4081BT,652 pinout, HEF4081BT,652 application, or HEF4081BT,652 equivalent, this device serves as a robust, wide-VDD logic building block where rail-flexible Boolean gating, ESD-hardened inputs, and temperature-stable timing are required - especially in legacy 4000-series upgrade paths and mixed-supply system glue logic.
Technical Context
The HEF4081BT implements four independent AND gates using standard CMOS process technology, with fully static operation and no minimum clock or refresh requirement. Each gate accepts two inputs referenced to VSS and produces a single active-HIGH output referenced to VDD, with logic levels defined by VIH/VIL thresholds that scale with supply voltage (e.g., VIH = 11.0 V at VDD = 15 V).
Input clamping diodes allow safe interface to signals exceeding VDD when used with current-limiting resistors, while symmetrical output characteristics ensure matched rise/fall times (tPLH/tPHL within ±5 ns at 15 V, CL = 50 pF) and consistent drive strength for both HIGH and LOW states across temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3.0 V to 15.0 V - Enables direct use in 5 V, 10 V, and 15 V systems without level shifters. |
| Propagation Delay (tPHL/tPLH) | 15 ns to 40 ns at VDD = 15 V, CL = 50 pF - Supports reliable timing in sub-30 MHz combinational logic paths. |
| Output Drive Current | ±4.2 mA at VDD = 15 V - Sufficient to drive multiple 4000-series inputs or small capacitive loads directly. |
| Operating Temperature | −40 °C to +125 °C - Qualified for under-hood, industrial, and extended-range embedded applications. |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - Reduces need for external protection in board-level ESD-prone environments. |
| Input Clamp Diodes | Integrated - Allows safe connection of inputs to voltages up to VDD + 0.5 V with series resistors. |
| Static Power Dissipation | ≤ 30 μA at VDD = 15 V, Tamb = +125 °C - Enables ultra-low quiescent current in always-on logic monitoring circuits. |
Pinout & Package
HEF4081BT,652 is housed in a plastic small outline package (SO14), SOT108-1 variant, with 14 leads, 3.9 mm body width, and standard 1.27 mm lead pitch. Pin 1 is marked by a notch or dot; pin numbering follows counter-clockwise convention from top-left corner when viewed with marking side up and pins down.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 8, 12 | 1A, 2A, 3A, 4A | First input per gate - Accepts logic HIGH/LOW referenced to VSS; includes clamp diode to VDD. |
| 2, 6, 9, 13 | 1B, 2B, 3B, 4B | Second input per gate - Identical electrical behavior to A inputs; enables full 2-input AND functionality. |
| 3, 4, 10, 11 | 1Y, 2Y, 3Y, 4Y | AND output per gate - Active-HIGH, rail-to-rail swing, symmetrical sourcing/sinking capability. |
| 7 | VSS | Ground reference - All inputs and outputs referenced to this node; must be low-impedance return path. |
| 14 | VDD | Positive supply - Powers all four gates; decoupling capacitor (100 nF) recommended near pin 14. |
Key Features
| Feature | Design Value |
|---|---|
| Wide Supply Range (3–15 V) | Eliminates need for separate voltage regulators in multi-rail systems; supports direct battery or unregulated supply use. |
| Input Clamp Diodes | Enables robust interfacing to higher-voltage control signals (e.g., 24 V PLC I/O) via simple series resistors. |
| High Noise Immunity | VIH/VIL thresholds scale with VDD (e.g., 70% VDD for VIH), maintaining >40% noise margin across full supply range. |
| JEDEC JESD13-B Compliance | Ensures interoperability with legacy 4000-series logic families and compatibility in mixed-technology designs. |
| −40 °C to +125 °C Operation | Validated performance across automotive under-hood and industrial ambient extremes without derating. |
Applications
| Industrial Control Logic | Power Sequencing Monitor |
|---|---|
|
Use Scenario: Enabling relay driver enable signals only when both safety interlock and run command are asserted. IC Role / Device Role / Timing Role: Quad AND gate performing real-time hardware-enforced logical conjunction of dual-channel safety inputs. Use Value: Provides fail-safe, zero-latency gating without software dependency or microcontroller overhead. |
Use Scenario: Validating correct startup order of multiple DC-DC rails before releasing reset to an FPGA. IC Role / Device Role / Timing Role: Combining individual rail-good signals into a composite "all-rails-ready" assertion. Use Value: Ensures deterministic power-up sequence with nanosecond-level timing stability across temperature. |
| Digital Signal Conditioning | Legacy System Glue Logic |
|
Use Scenario: Filtering noisy sensor interrupt lines by requiring coincident pulses on two independent channels. IC Role / Device Role / Timing Role: Synchronizing and AND-ing asynchronous edge-triggered signals to suppress glitches. Use Value: Achieves hardware debouncing with <15 ns propagation skew between channels. |
Use Scenario: Interfacing TTL-level microcontroller outputs to CMOS memory address latches in retro-computing hardware. IC Role / Device Role / Timing Role: Level-shifting and fanout buffering while preserving 4000-series logic family timing behavior. Use Value: Maintains compatibility with vintage design constraints including slow edge rates and wide VDD tolerance. |
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 max VDD (18 V), higher max IDD (5 μA vs 30 μA at 125 °C), no JESD13-B compliance. | Preferred in high-reliability aerospace contexts where MIL-PRF-38535 screening is available; less suited for automotive-temp industrial use due to narrower temp spec (−55 °C to +125 °C). | Select CD4081BE only if legacy TI qualification or 18 V absolute max rating is mandatory; otherwise HEF4081BT offers superior ESD and industrial temp validation. |
| 74HC08PW,118 | CMOS variant with faster speed (tPD = 7 ns @ 5 V), narrower VDD (2–6 V), and lower drive (±4 mA), but no input clamp diodes or extended temp support. | Suitable for modern 3.3 V/5 V digital systems with tight timing budgets; unsuitable for mixed-voltage or overvoltage interface scenarios. | Choose 74HC08PW only for new 5 V-only designs needing sub-10 ns delay; avoid where VDD > 6 V or input overvoltage tolerance is required. |
Compared with CD4081BE and 74HC08PW, the HEF4081BT uniquely balances wide VDD (3–15 V), industrial temperature range (−40 °C to +125 °C), integrated input clamps, and JEDEC-standardized behavior - making it the only option qualified for legacy-compatible, multi-supply, and harsh-environment AND gating.
Availability
HEF4081BT,652 is available at Aetrix Electronics and suitable for industrial control logic, power sequencing monitors, digital signal conditioning, and legacy system glue logic requiring stable component supply across extended temperature and voltage ranges.
Supply support for HEF4081BT,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
Nexperia is a global semiconductor expert focused on essential efficiency technologies, delivering high-performance logic, discrete, and MOSFET solutions optimized for reliability and manufacturability.
The HEF4081BT belongs to Nexperia's legacy-compatible 4000-series logic family, designed specifically for industrial, automotive, and infrastructure applications demanding wide supply range, extended temperature operation, and robust ESD immunity.
FAQ
Can HEF4081BT,652 operate reliably at 3.3 V?
No - the HEF4081BT is specified from 3.0 V minimum, but its VIH threshold at 3.3 V is only ~2.3 V (70% of VDD), and static parameters like VOL and VOH are not characterized below 5 V in the datasheet. For guaranteed 3.3 V operation, use 74LVC08 or similar 3.3 V-optimized logic.
Does HEF4081BT,652 support mixed-voltage interfacing (e.g., 5 V inputs driving a 15 V-powered device)?
Yes - input clamp diodes allow safe connection of 5 V signals to a 15 V-powered HEF4081BT when series current-limiting resistors (≥10 kΩ) are used. The diodes conduct excess voltage to VDD, preventing damage while preserving logic levels.
What is the maximum capacitive load the HEF4081BT,652 can drive without timing degradation?
At VDD = 15 V, the datasheet specifies tPHL/tPLH up to 40 ns with CL = 50 pF. Driving >100 pF increases delay nonlinearly (e.g., +0.16 ns/pF extrapolation); for loads >75 pF, add a buffer stage or reduce VDD to improve slew rate margin.
Is HEF4081BT,652 pin-compatible with older HEF4081BP (DIP-14) devices?
Yes - both share identical pinout (SOT108-1 SO14 matches DIP-14 pin numbering), same logic function, and compatible DC/AC specifications. The only differences are package (SO14 vs DIP-14) and thermal resistance; PCB layout must accommodate surface-mount footprint.
HEF4081BT,652 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 4000B
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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,652 FAQ
1.How can I place an order for HEF4081BT,652 through Aetrix?
Please submit a Request for Quotation (RFQ) for HEF4081BT,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 HEF4081BT,652 reliable?
The price and inventory of HEF4081BT,652 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HEF4081BT,652 is usually 5 days.
3.What payment methods are accepted for HEF4081BT,652?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HEF4081BT,652 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HEF4081BT,652?
HEF4081BT,652 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HEF4081BT,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 HEF4081BT,652?
For technical support, including HEF4081BT,652 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HEF4081BT,652 requirements.
6.How does Aetrix verify that HEF4081BT,652 is sourced from the original manufacturer or authorized distributors?
All HEF4081BT,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 HEF4081BT,652 meets industry standards.
7.What is the process for return or replacement of HEF4081BT,652?
All HEF4081BT,652 units undergo pre-shipment inspection (PSI). If there is an issue with HEF4081BT,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 HEF4081BT,652 part is unused and in its original packaging.
Return procedure for HEF4081BT,652:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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