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NXP Semiconductors HEF4071BT,652
- Part No.:
- HEF4071BT,652
- Manufacturer:
- NXP Semiconductors
- Category:
- Gates and Inverters
- Package:
- -
- Datasheet:
-
HEF4071BT,652.pdf
- Description:
- IC GATE OR
- Quantity:
- Payment:
- Shipping:
Inventory:27,360
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Product details
Overview
HEF4071BT,652 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 output drive capability up to ±4.2 mA, used for digital logic level translation and signal combining in industrial control interfaces.
For engineers reviewing the HEF4071BT,652 datasheet, HEF4071BT,652 pinout, HEF4071BT,652 application, or HEF4071BT,652 equivalent, this device supports high-noise-immunity combinational logic in temperature-critical environments (−40 °C to +125 °C), with ESD protection exceeding 2000 V HBM and clamped inputs enabling overvoltage-tolerant interfacing.
Technical Context
The HEF4071BT,652 implements four independent OR logic functions using standard CMOS transistor pairs, with symmetrical push-pull outputs delivering matched VOH/VOL across voltage rails (3–15 V) and temperature (−40 °C to +125 °C). Each gate features diode-clamped inputs that allow safe interfacing to signals exceeding VDD when used with current-limiting resistors.
Dynamic performance is defined by load-dependent propagation delays (tPHL/tPLH) and transition times (tt), with extrapolation formulas provided per supply voltage (e.g., tPLH = 7 ns + 0.16 ns/pF × CL at VDD = 15 V). Static characteristics include VIH = 11.0 V and VIL = 4.0 V at 15 V, ensuring robust logic threshold margins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad 2-input OR gate - provides four independent Boolean OR operations in one IC |
| Supply Voltage Range | 3 V to 15 V - supports wide-rail operation across 5 V, 10 V, and 15 V systems |
| Propagation Delay | 15 ns typical at VDD = 15 V, CL = 50 pF - enables timing-critical combinational logic paths |
| Output Drive | ±4.2 mA at VDD = 15 V - sufficient to drive multiple TTL/CMOS loads or small capacitive buses |
| Operating Temperature | −40 °C to +125 °C - qualified for extended industrial and under-hood applications |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - meets JEDEC JS-001/JS-002 Class 2/C3 for handling robustness |
| Input Clamp Diodes | Integrated - permits safe interface to voltages > VDD using external current-limiting resistors |
Pinout & Package
HEF4071BT,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 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 - electrically identical, accepts logic HIGH/LOW signals |
| 2, 6, 9, 13 | 1B, 2B, 3B, 4B | Second input of each OR gate - paired with corresponding A input for OR function |
| 3, 4, 10, 11 | 1Y, 2Y, 3Y, 4Y | OR output per gate - active-high, rail-to-rail CMOS swing, capable of sourcing/sinking ≥4 mA |
| 7 | VSS | Ground reference (0 V) - must be connected to system common return path |
| 14 | VDD | Positive supply rail - powers all four gates; decoupling capacitor recommended near pin |
Key Features
| Feature | Design Value |
|---|---|
| Fully static CMOS operation | Zero static current draw at steady state - eliminates quiescent power concerns in battery-backed systems |
| Wide supply range (3–15 V) | Single part replaces multiple voltage-specific logic families - simplifies BOM and design reuse |
| Input clamp diodes | Enables direct connection to 18 V signals via series resistor - avoids need for external level-shifting circuitry |
| High noise immunity | Typical noise margin > 40% of VDD - ensures reliable operation in electrically noisy industrial environments |
| JEDEC JESD13-B compliance | Guarantees interoperability with legacy 4000-series logic and standardized test methodology |
Applications
| Industrial PLC Input Conditioning | Legacy System Logic Interface |
|---|---|
|
Use Scenario: Converting discrete 12 V sensor switch closures into clean 5 V logic signals for microcontroller GPIO inputs. IC Role / Device Role / Timing Role: OR gate performs wired-OR aggregation of multiple fault indicators before feeding to interrupt line. Use Value: Input clamp diodes eliminate external Zener clamps; 125 °C rating supports enclosure-mounted control cabinets. |
Use Scenario: Interfacing 10 V analog comparator outputs to 3.3 V FPGA I/O banks without level translators. IC Role / Device Role / Timing Role: Acts as voltage-tolerant logic buffer with rail-referenced thresholds (VIH = 7.0 V @ 10 V). Use Value: Eliminates need for dual-supply translators; propagation delay <25 ns preserves timing integrity in feedback loops. |
| Power Sequencing Monitor | Redundant Signal Voter |
|
Use Scenario: Detecting presence of any one of three independent 5 V power rails to assert "power good" status. IC Role / Device Role / Timing Role: Four-gate structure allows parallel monitoring of up to four rails with single-package footprint. Use Value: Low IDD (<30 μA at 125 °C) minimizes impact on monitored supplies; SO14 package fits dense PCB layouts. |
Use Scenario: Implementing triple-modular redundancy (TMR) voter logic where majority vote determines system state. IC Role / Device Role / Timing Role: OR gates combine outputs from three identical sensors; output asserts if ≥1 reports fault. Use Value: Matched propagation delays (<5 ns variation between gates) ensure synchronous decision timing critical for safety systems. |
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 TI-manufactured; wider temp range (−55 °C to +125 °C); higher max VDD (18 V); no integrated input clamps | Requires external clamping for overvoltage inputs; preferred in aerospace/military due to extended cold rating | Select when absolute minimum leakage (<10 nA) or −55 °C operation is required; avoid if overvoltage interface is needed without added components |
| 74HC32D | Higher speed (tPD ≈ 7 ns @ 5 V); narrower VDD range (2–6 V); no input clamps; lower drive (±4 mA) | Not suitable for 10/15 V systems; requires level shifters for mixed-voltage designs | Choose for high-speed 5 V-only systems where propagation delay <10 ns is mandatory; not drop-in compatible for wide-supply use |
Compared with CD4071BE and 74HC32D, the HEF4071BT,652 uniquely balances wide-supply operation (3–15 V), built-in overvoltage input tolerance, and industrial temperature support - making it optimal for mixed-voltage industrial control where component count and reliability are prioritized over raw speed.
Availability
HEF4071BT,652 is available at Aetrix Electronics and suitable for industrial PLCs, legacy system upgrades, power sequencing monitors, and redundant signal voters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for HEF4071BT,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 industrial, automotive, and computing applications.
The HEF4071BT,652 belongs to Nexperia's legacy-compatible 4000B-series CMOS logic family, designed specifically for robust, wide-supply, high-noise-immunity digital interfacing in harsh industrial environments.
FAQ
Can HEF4071BT,652 operate reliably at 15 V with full output drive?
Yes. The device is fully characterized at 15 V supply, delivering ±4.2 mA output current while maintaining VOL ≤ 0.05 V and VOH ≥ 14.95 V at 125 °C. Its absolute maximum VDD rating is +18 V, providing 3 V headroom for transient margin.
Does HEF4071BT,652 require external pull-up or pull-down resistors on unused inputs?
No. Unused inputs may be tied directly to VDD or VSS without external resistors. The internal input structure includes protection diodes and high-impedance CMOS gates; floating inputs are not permitted due to potential oscillation or increased power consumption.
How does the input clamping feature affect interfacing with 24 V sensors?
Clamp diodes allow direct connection to 24 V sources when used with a series current-limiting resistor (e.g., 10 kΩ limits IIK to <2.4 mA, within ±10 mA absolute max). This eliminates external Zener diodes or voltage dividers while preserving logic-level compatibility.
Is HEF4071BT,652 pin-compatible with older HEF4071BP (DIP-14) versions?
Yes - both share identical pinout (1A–4Y, VSS, VDD) and logic function. The SO14 (SOT108-1) package of HEF4071BT,652 is a surface-mount drop-in replacement for through-hole HEF4071BP, enabling direct PCB redesign without logic or timing changes.
HEF4071BT,652 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Number of Circuits:
- -
- Number of Inputs:
- -
- Features:
- -
- Voltage - Supply:
- -
- Current - Quiescent (Max):
- -
- Current - Output High, Low:
- -
- Input Logic Level - Low:
- -
- Input Logic Level - High:
- -
- Max Propagation Delay @ V, Max CL:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
HEF4071BT,652 FAQ
1.How can I place an order for HEF4071BT,652 through Aetrix?
Please submit a Request for Quotation (RFQ) for HEF4071BT,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 HEF4071BT,652 reliable?
The price and inventory of HEF4071BT,652 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HEF4071BT,652 is usually 5 days.
3.What payment methods are accepted for HEF4071BT,652?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HEF4071BT,652 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HEF4071BT,652?
HEF4071BT,652 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HEF4071BT,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 HEF4071BT,652?
For technical support, including HEF4071BT,652 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HEF4071BT,652 requirements.
6.How does Aetrix verify that HEF4071BT,652 is sourced from the original manufacturer or authorized distributors?
All HEF4071BT,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 HEF4071BT,652 meets industry standards.
7.What is the process for return or replacement of HEF4071BT,652?
All HEF4071BT,652 units undergo pre-shipment inspection (PSI). If there is an issue with HEF4071BT,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 HEF4071BT,652 part is unused and in its original packaging.
Return procedure for HEF4071BT,652:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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