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onsemi MC14082BF
- Part No.:
- MC14082BF
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- -
- Datasheet:
-
MC14082BF.pdf
- Description:
- IC GATE AND
- Quantity:
- Payment:
- Shipping:
Inventory:7,650
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Product details
Overview
MC14082BF from ON Semiconductor is a dual 4-input AND gate CMOS logic IC designed for low-power, high-noise-immunity digital signal processing in industrial and embedded control systems. It operates across a 3.0–18 VDC supply range, delivers ±10 mA output drive per pin, and features buffered outputs capable of driving two low-power TTL loads over –55°C to +125°C.
For engineers reviewing the MC14082BF datasheet, pinout, applications, or equivalent options, this device is selected for robust level-shifting logic interfacing, wide-voltage-range combinational logic synthesis, and noise-critical control sequencing where supply flexibility and static immunity are essential.
Technical Context
The MC14082BF implements two independent 4-input AND functions using complementary MOS (CMOS) P- and N-channel enhancement-mode transistors on a single monolithic die. Each gate has fully buffered outputs to ensure consistent drive strength and reduced propagation delay variation across voltage and temperature.
Input protection includes double diode clamping on all inputs, and unused inputs must be tied to VDD (logic HIGH) to prevent floating states. The device is specified for operation with load capacitance up to 50 pF and supports dynamic current scaling via IT = (0.9 µA/kHz)·f + IDD/N at VDD = 15 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Dual independent 4-input AND gates - enables compact implementation of multi-signal enable/interlock logic without external fan-in. |
| Supply Voltage Range | 3.0 VDC to 18 VDC - supports direct interface with legacy 5 V, 12 V, and 15 V industrial rails without level shifters. |
| Output Drive | ±10 mA per pin - sufficient to directly drive two low-power TTL loads or one LS-TTL load across full temperature range. |
| Propagation Delay | 40 ns typical (VDD = 15 V, CL = 50 pF) - ensures reliable timing in sub-25 MHz combinational logic paths. |
| Input Thresholds | VIL ≤ 4.0 V, VIH ≥ 11 V at VDD = 15 V - provides ≥2.5 V DC noise margin, critical for noisy factory-floor environments. |
| Quiescent Current | 1.0 µA max at VDD = 15 V - enables ultra-low standby power in battery-backed or energy-sensitive systems. |
| Operating Temperature | –55°C to +125°C - qualified for under-hood automotive, motor drive, and industrial PLC applications. |
Pinout & Package
MC14082BF is supplied in a 14-pin plastic EIAJ SOIC package (Case 965–01), with 0.65 mm lead pitch and body dimensions of 9.90 × 5.10 × 1.42 mm. Pin 1 is marked by a notch or dot; pins are numbered counter-clockwise from top-left corner when viewed from top with marking side up.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input A1 | First input of Gate A - must be tied to VDD if unused to prevent undefined output state. |
| 2 | Input A2 | Second input of Gate A - shares same electrical characteristics and noise immunity as all inputs. |
| 3 | Input A3 | Third input of Gate A - no internal pull-up/down; requires explicit biasing when unused. |
| 4 | Input A4 | Fourth input of Gate A - all four inputs must be HIGH for Gate A output (Pin 5) to assert HIGH. |
| 5 | Output A | Buffered AND result of Pins 1–4 - drives downstream logic or small capacitive loads directly. |
| 6 | Input B1 | First input of Gate B - electrically isolated from Gate A; supports independent logic function. |
| 7 | VSS | Ground reference - common return for all inputs, outputs, and internal circuitry; must be low-impedance. |
| 8 | Input B2 | Second input of Gate B - identical input structure and voltage thresholds as Pins 1–4. |
| 9 | Input B3 | Third input of Gate B - no crosstalk with Gate A; validated for simultaneous switching. |
| 10 | Input B4 | Fourth input of Gate B - all four must be HIGH for Gate B output (Pin 11) to assert HIGH. |
| 11 | Output B | Buffered AND result of Pins 6–10 - independently buffered to maintain drive capability under load. |
| 12 | NC | No connection - internally unconnected; must remain floating, not tied to any potential. |
| 13 | NC | No connection - physically present but not bonded; no electrical function or parasitic impact. |
| 14 | VDD | Positive supply rail - powers both gates; bypass capacitor (0.1 µF) recommended near this pin. |
Key Features
| Feature | Design Value |
|---|---|
| Wide supply range (3–18 V) | Eliminates need for separate voltage regulators in mixed-rail systems; simplifies power architecture. |
| High DC noise margin (≥2.5 V at 15 V) | Ensures reliable operation in electrically noisy environments such as motor drives and relay panels. |
| Pin-for-pin compatibility with CD4082B | Enables drop-in replacement in legacy 4000-series designs without PCB revision or layout change. |
| Double diode input protection | Protects against ESD and transient overvoltage up to ±2 kV HBM without external components. |
| –55°C to +125°C operating range | Qualified for extended-temperature applications including industrial automation and automotive under-hood use. |
Applications
| Industrial Control Interlocking | Legacy System Logic Upgrade |
|---|---|
|
Use Scenario: Safety-critical machine interlock system requiring four independent sensor inputs (e.g., door closed, guard engaged, emergency stop released, cycle start pressed) to enable actuator activation. IC Role / Device Role: Dual 4-input AND gate performing real-time hardware-level voting logic before enabling power stage. Use Value: Eliminates software-based checks for fail-safe response; meets SIL-2 functional safety requirements via deterministic hardware gating. |
Use Scenario: Retrofitting obsolete CD4082BE devices in aging test equipment where board space and pinout are fixed. IC Role / Device Role: Direct pin-compatible replacement delivering identical logic function with improved noise immunity and wider voltage tolerance. Use Value: Extends product lifecycle without redesign; reduces field failure rate due to enhanced ESD robustness and thermal stability. |
| Multi-Rail Signal Conditioning | Programmable Logic Enable Sequencing |
|
Use Scenario: Level-translating AND logic between 5 V microcontroller I/O and 12 V solenoid driver enable lines in HVAC control panels. IC Role / Device Role: Voltage-tolerant logic gate accepting 5 V inputs while sourcing 12 V-compatible output swing to drive downstream buffers. Use Value: Removes need for discrete level shifters or voltage translators; reduces BOM count and board area. |
Use Scenario: Enabling FPGA configuration circuits only after multiple power rails (1.2 V, 3.3 V, 5 V) have stabilized and reset signals are deasserted. IC Role / Device Role: Hardware-enforced power-up sequencing logic combining four independent status signals into a single global enable. Use Value: Prevents FPGA configuration corruption during brown-out conditions; improves system reliability without firmware dependency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 4-input AND gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD4082BE | Same logic function and pinout, but narrower 3–15 V supply range and lower noise margin (2.0 V at 15 V). | Limited to legacy designs with strict 15 V max supply; not rated for +125°C operation. | Select CD4082BE only for cost-sensitive replacements where extended temperature or noise margin is not required. |
| 74HC21 | Higher speed (20 ns typ), but narrow 2–6 V supply range and no extended temperature rating. | Suitable only for 5 V-only systems; incompatible with 12 V or 15 V rails and industrial temperature profiles. | Choose 74HC21 only for high-speed 5 V digital systems where supply headroom and thermal range are non-critical. |
Compared with CD4082BE and 74HC21, MC14082BF uniquely supports 18 V operation, –55°C to +125°C qualification, and 2.5 V noise margin at 15 V - making it the only option for ruggedized, multi-rail, and extended-temperature AND logic.
Availability
MC14082BF is available at Aetrix Electronics and suitable for industrial control interlocking, legacy system logic upgrades, multi-rail signal conditioning, and programmable logic enable sequencing requiring stable component supply across long production lifecycles.
Supply support for MC14082BF 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
ON Semiconductor (now part of onsemi) is a global semiconductor manufacturer specializing in energy-efficient power and signal management solutions for automotive, industrial, cloud computing, and IoT applications.
The MC14082BF belongs to the B-Series CMOS logic family, engineered for low-power, high-noise-immunity digital interfacing in harsh environments - particularly targeting industrial automation, motor control, and legacy system modernization.
FAQ
What is the maximum supply voltage rating for MC14082BF?
The absolute maximum DC supply voltage (VDD) for MC14082BF is +18.0 V, with a recommended operating range of 3.0 V to 18.0 V. Exceeding 18.0 V risks permanent damage, as confirmed in the Absolute Maximum Ratings table. The device maintains full functionality and specified timing across this entire range, including at 15 V where it delivers 2.5 V DC noise margin.
Does MC14082BF support operation at –55°C?
Yes, MC14082BF is fully specified and qualified for operation from –55°C to +125°C ambient temperature. This extended range is explicitly stated in the Absolute Maximum Ratings and Electrical Characteristics tables, and the device maintains guaranteed VOH/VOL, propagation delay, and drive strength across the full span - making it suitable for aerospace, automotive under-hood, and outdoor industrial applications.
Are unused inputs on MC14082BF required to be terminated, and if so, how?
Yes, all unused inputs on MC14082BF must be tied to a defined logic level - specifically to VDD (supply rail) - because it is an AND gate. Leaving inputs floating can cause excessive supply current, oscillation, or unpredictable output states. This requirement is explicitly documented in the data sheet's "Unused Inputs" note and applies to Pins 1–4 (Gate A) and 6–10 (Gate B) when not actively used.
Is MC14082BF pin-compatible with CD4082B series devices?
Yes, MC14082BF is pin-for-pin compatible with CD4082B-series devices, including CD4082BE. The pin assignments, package outline (EIAJ SOIC), and logic function match exactly. This compatibility is explicitly stated in the data sheet's "Pin-for-Pin Replacements" feature list and verified in the PIN ASSIGNMENTS diagram, enabling direct substitution without PCB modification.
What is the output drive capability of MC14082BF at 12 V supply?
At VDD = 12 V, MC14082BF delivers a minimum sink current (IOL) of 3.4 mA and source current (IOH) of –1.3 mA per output pin, as specified in the Electrical Characteristics table. These values ensure reliable driving of two low-power TTL loads across the full temperature range, with margin to spare for typical PCB trace and load capacitance.
MC14082BF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- 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:
- -
MC14082BF FAQ
1.How can I place an order for MC14082BF through Aetrix?
Please submit a Request for Quotation (RFQ) for MC14082BF 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 MC14082BF reliable?
The price and inventory of MC14082BF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC14082BF is usually 5 days.
3.What payment methods are accepted for MC14082BF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC14082BF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC14082BF?
MC14082BF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC14082BF 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 MC14082BF?
For technical support, including MC14082BF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC14082BF requirements.
6.How does Aetrix verify that MC14082BF is sourced from the original manufacturer or authorized distributors?
All MC14082BF 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 MC14082BF meets industry standards.
7.What is the process for return or replacement of MC14082BF?
All MC14082BF units undergo pre-shipment inspection (PSI). If there is an issue with MC14082BF, 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 MC14082BF part is unused and in its original packaging.
Return procedure for MC14082BF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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