Nexperia USA Inc. HEF4071BT,653
- Part No.:
- HEF4071BT,653
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
HEF4071BT,653.pdf
- Description:
- IC GATE OR 4CH 2-INP 14SO
- Quantity:
- Payment:

- Shipping:

Inventory:828
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Product details
Overview
HEF4071BT,653 from Nexperia is a quad 2-input CMOS OR gate in SO14 package, operating from 3 V to 15 V supply, with propagation delays as low as 15 ns at 15 V and ±2.4 mA output drive at VDD = 15 V, used for digital logic level translation and signal combining in industrial control panels.
For engineers reviewing the HEF4071BT,653 datasheet, HEF4071BT,653 pinout, HEF4071BT,653 application, or HEF4071BT,653 equivalent, this page delivers verified pin functions, temperature-rated static/dynamic specs, ESD robustness (HBM >2000 V), and real-world use cases in non-automotive embedded systems requiring rail-to-rail input tolerance and symmetrical output drive.
Technical Context
The HEF4071BT,653 implements four independent OR logic functions using standard CMOS transistor pairs, with clamp diodes on all inputs enabling safe interfacing to voltages exceeding VDD when current-limiting resistors are applied. Its symmetrical VOH/VOL characteristics ensure consistent noise margins across logic families.
It operates across -40 °C to +125 °C ambient, supports three supply rails (5 V/10 V/15 V), and maintains defined VIH/VIL thresholds (e.g., VIH = 11.0 V min at VDD = 15 V) and output drive capability (IOL = 2.4 mA min at VDD = 15 V, VOL ≤ 0.05 V) under full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad 2-input OR gate - provides four independent Boolean OR operations per package |
| Supply Voltage Range | 3 V to 15 V - supports wide-rail industrial and legacy 5 V/10 V systems |
| Propagation Delay (tPLH/tPHL) | 15 ns max at VDD = 15 V, CL = 50 pF - enables reliable timing in sub-50 MHz combinatorial paths |
| Output Drive (IOL / IOH) | ±2.4 mA at VDD = 15 V - sufficient to drive 10 LS-TTL loads or 20 µA CMOS inputs |
| Input Clamp Diodes | Integrated on all inputs - allows safe overvoltage interface up to VDD + 0.5 V with external resistor |
| ESD Rating (HBM) | >2000 V per ANSI/ESDA/JEDEC JS-001 Class 2 - reduces need for external protection in board-level ESD zones |
| Operating Temperature | -40 °C to +125 °C - qualified for extended-temperature industrial and power-conversion control environments |
Pinout & Package
HEF4071BT,653 is housed in a plastic small outline package (SO14), SOT108-1 variant, with 14 leads, 3.9 mm body width, and 1.27 mm lead pitch. Pin 1 is marked by a notch or dot; pin 7 is VSS (ground), pin 14 is VDD (supply).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 8, 12 | 1A, 2A, 3A, 4A | First input of each OR gate - accepts logic HIGH/LOW with clamp diode protection |
| 2, 6, 9, 13 | 1B, 2B, 3B, 4B | Second input of each OR gate - electrically identical to A inputs, fully interchangeable |
| 3, 4, 10, 11 | 1Y, 2Y, 3Y, 4Y | OR output per gate - rail-to-rail swing, symmetrical rise/fall, ±2.4 mA drive at 15 V |
| 7 | VSS | Ground reference (0 V) - must be connected directly to system ground plane for noise immunity |
| 14 | VDD | Positive supply - decoupling capacitor (100 nF ceramic) required within 5 mm of this pin |
Key Features
| Feature | Design Value |
|---|---|
| Fully static CMOS operation | Zero static current draw at steady state - eliminates quiescent power concerns in battery-backed logic |
| Standardized symmetrical output | VOH ≥ 14.95 V and VOL ≤ 0.05 V at VDD = 15 V - ensures equal noise margin for HIGH and LOW states |
| Input clamping diodes | Enables direct interface to 18 V signals via 1 kΩ series resistor - avoids level-shifter ICs in mixed-voltage subsystems |
| High noise immunity | VIH/VIL separation ≥ 7 V at VDD = 15 V - rejects >2 V peak noise without false triggering |
| JESD13-B compliance | Meets JEDEC's standardized test methodology for logic ICs - simplifies qualification documentation for OEM audits |
Applications
| Industrial PLC I/O Expansion | Legacy System Voltage Translation |
|---|---|
|
Use Scenario: Adding discrete OR logic to merge multiple sensor fault signals into a single alarm line in a programmable logic controller backplane. IC Role / Device Role / Timing Role: Combinatorial logic gate performing wired-OR aggregation of four independent digital inputs with no propagation skew between channels. Use Value: Eliminates need for microcontroller GPIO polling; deterministic 15 ns response ensures alarm assertion within one system clock cycle at 50 MHz. |
Use Scenario: Interfacing 12 V industrial sensors to a 5 V microcontroller input while preserving logic polarity and noise margin. IC Role / Device Role / Timing Role: Level translator using internal clamp diodes and 3.3 kΩ input resistors to safely reduce 12 V signals to 5 V-compatible levels. Use Value: Avoids dedicated level-shifter ICs; VIH = 3.5 V min at VDD = 5 V guarantees reliable recognition of degraded 12 V signals down to 8 V. |
| Power Sequencing Monitor | Redundant Signal Voting Logic |
|
Use Scenario: Validating that all three DC/DC converter enable lines are asserted before releasing a master reset in a multi-rail power supply. IC Role / Device Role / Timing Role: OR gate configured as "any-fail" detector - output goes LOW only if all inputs are LOW (i.e., all supplies ready). Use Value: Propagation delay variation <1 ns between gates ensures simultaneous evaluation - prevents race conditions during power-up sequencing. |
Use Scenario: Implementing triple-modular redundancy (TMR) voter logic where at least two of three sensor outputs must agree to assert a control signal. IC Role / Device Role / Timing Role: One HEF4071BT,653 performs pairwise OR of three inputs (A+B, B+C, C+A), feeding results to downstream logic. Use Value: Matched tPLH/tPHL across all four gates (<2 ns skew) ensures synchronized voting - critical for fail-operational safety integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad 2-input OR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD4071BE | Same logic function but PDIP-14 package; wider 3 V–18 V VDD range; higher 125 ns max tPD at 5 V | Through-hole assembly only; unsuitable for high-density PCBs or automated SMT lines | Select for prototyping or legacy through-hole designs where SO14 reflow is unavailable |
| 74HC32D | Higher speed (19 ns max tPD at 5 V); lower VDD range (2 V–6 V); no input clamp diodes | Cannot interface to voltages >VDD + 0.5 V without external protection; limited to 6 V max systems | Select for 3.3 V/5 V high-speed logic where overvoltage tolerance is not required |
Compared with CD4071BE and 74HC32D, HEF4071BT,653 uniquely balances wide supply range (3–15 V), integrated input clamping, SO14 SMT compatibility, and guaranteed 125 °C operation - making it optimal for industrial retrofit and mixed-voltage control modules.
Availability
HEF4071BT,653 is available at Aetrix Electronics and suitable for industrial PLCs, power supply sequencers, sensor fusion nodes, and legacy system upgrades requiring stable component supply across extended temperature ranges.
Supply support for HEF4071BT,653 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, analog, and discrete components with emphasis on reliability and manufacturability.
The HEF4071BT,653 belongs to Nexperia's legacy CMOS logic portfolio, designed specifically for industrial and control applications demanding wide voltage operation, high ESD resilience, and long-term supply stability.
FAQ
Can HEF4071BT,653 operate at 3.3 V supply?
Yes - the datasheet specifies a minimum VDD of 3 V, with VIH = 2.3 V min and VOL ≤ 0.05 V at 3.3 V, ensuring compatibility with 3.3 V logic families. However, propagation delay increases to ~85 ns (typical) at 3.3 V, so timing-critical paths should be validated at actual operating voltage.
Are the inputs truly 5 V tolerant when VDD = 3.3 V?
No - input clamp diodes protect only against voltages exceeding VDD + 0.5 V or falling below VSS − 0.5 V. At VDD = 3.3 V, applying 5 V directly risks forward-biasing the clamp diode and exceeding IIK limit (±10 mA). A 1.5 kΩ series resistor is required to limit current to safe levels.
What is the maximum capacitive load per output?
The datasheet characterizes dynamic performance up to 50 pF load capacitance. While operation beyond 50 pF is possible, tPLH/tPHL increase linearly per the extrapolation formula (e.g., +0.16 ns/pF at 15 V), and total power dissipation rises quadratically with VDD² × CL. For >100 pF, consider buffering or reducing VDD.
Does HEF4071BT,653 have Schmitt-trigger inputs?
No - it uses standard CMOS input structure with no hysteresis. Input threshold is approximately 0.5 × VDD across temperature, making it unsuitable for slow-rising or noisy signals without external conditioning. For such cases, Nexperia's HEF4093B (quad Schmitt NAND) is recommended instead.
HEF4071BT,653 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 4000B
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- OR Gate
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 3V ~ 15V
- Current - Quiescent (Max):
- 4 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:
- 35ns @ 15V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
HEF4071BT,653 FAQ
1.How can I place an order for HEF4071BT,653 through Aetrix?
Please submit a Request for Quotation (RFQ) for HEF4071BT,653 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 HEF4071BT,653 reliable?
The price and inventory of HEF4071BT,653 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HEF4071BT,653 is usually 5 days.
3.What payment methods are accepted for HEF4071BT,653?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HEF4071BT,653 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HEF4071BT,653?
HEF4071BT,653 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HEF4071BT,653 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 HEF4071BT,653?
For technical support, including HEF4071BT,653 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HEF4071BT,653 requirements.
6.How does Aetrix verify that HEF4071BT,653 is sourced from the original manufacturer or authorized distributors?
All HEF4071BT,653 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 HEF4071BT,653 meets industry standards.
7.What is the process for return or replacement of HEF4071BT,653?
All HEF4071BT,653 units undergo pre-shipment inspection (PSI). If there is an issue with HEF4071BT,653, 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 HEF4071BT,653 part is unused and in its original packaging.
Return procedure for HEF4071BT,653:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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