onsemi MC14081BFR2
- Part No.:
- MC14081BFR2
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- -
- Datasheet:
-
MC14081BFR2.pdf
- Description:
- IC GATE AND
- Quantity:
- Payment:

- Shipping:

Inventory:10,000
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Product details
Overview
MC14081BFR2 from onsemi is a quad 2-input AND gate CMOS logic IC designed for low-power, high-noise-immunity digital signal processing in industrial control and instrumentation systems. It operates across 3.0–18 VDC supply, delivers ±10 mA output drive per pin, features triple diode input protection, and supports –55°C to +125°C ambient operation.
For engineers reviewing the MC14081BFR2 datasheet, pinout, applications, or equivalent options, key selection considerations include its wide VDD range, buffered outputs, TTL-load drive capability, triple-diode-protected inputs, and compatibility with CD4000-series designs.
Technical Context
The MC14081BFR2 implements four independent 2-input AND functions using complementary MOS (CMOS) P- and N-channel enhancement-mode transistors in a monolithic structure. Each gate includes buffered output stages to improve fan-out and transient immunity.
It uses triple diode protection on all inputs-unlike most B-series gates which use double diode protection-enhancing ESD robustness. Input thresholds scale with VDD (e.g., VIH = 3.5 V at 5 V, 11 V at 15 V), enabling reliable operation across its full 3–18 V supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad 2-input AND gate - provides four independent Boolean AND operations in one 14-pin package |
| Supply Voltage Range | 3.0 VDC to 18 VDC - enables direct interface with diverse power rails including 5 V, 12 V, and 15 V systems |
| Input Protection | Triple diode protection - higher ESD tolerance than standard double-diode B-series gates |
| Output Drive | ±10 mA per pin - sufficient to drive two low-power TTL loads or one low-power Schottky TTL load over full temperature range |
| Operating Temperature | –55°C to +125°C - qualified for harsh industrial, automotive under-hood, and military-grade environments |
| Propagation Delay | 40 ns typical at VDD = 15 V, CL = 50 pF - supports medium-speed combinatorial logic up to ~10 MHz |
| Quiescent Current | 1.0 µA max at VDD = 15 V - ultra-low static power ideal for battery-backed or energy-sensitive applications |
Pinout & Package
MC14081BFR2 is supplied in a 14-pin plastic EIAJ SOIC package (Case 965–01, F suffix), with 0.65 mm lead pitch and body dimensions of 9.90 × 5.10 mm. The package is RoHS-compliant and rated for surface-mount reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 5, 6, 8, 9, 12, 13 | Input A/B per gate | Eight total inputs - paired as IN1A/IN2A (pins 1/2), IN1B/IN2B (pins 5/6), IN1C/IN2C (pins 8/9), IN1D/IN2D (pins 12/13) |
| 3, 4, 10, 11 | Output Y per gate | Four independent AND outputs - OUTA (pin 3), OUTB (pin 4), OUTC (pin 10), OUTD (pin 11) |
| 7 | VSS | Ground reference - must be connected to system GND; unused inputs tied to VSS or VDD |
| 14 | VDD | Positive supply rail - accepts 3–18 VDC; decoupling capacitor recommended near pin |
Key Features
| Feature | Design Value |
|---|---|
| Wide supply voltage range | 3.0–18 VDC operation eliminates need for level-shifting in mixed-voltage systems |
| Triple diode input protection | Enhanced ESD robustness vs. standard B-series gates-critical for field-deployed equipment |
| Buffered outputs | Improved noise margin and consistent switching performance across load variations |
| Pin-for-pin CD4000 compatibility | Direct drop-in replacement for CD4081B-enables legacy design upgrades without PCB change |
| High noise immunity | Guaranteed DC noise margin ≥2.5 V at 15 V supply-reduces false triggering in noisy environments |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
Use Scenario: Extending discrete input conditioning in programmable logic controllers where multiple sensor signals require synchronized AND gating before interrupt generation. IC Role / Device Role / Timing Role: Logic-level signal combiner - performs real-time Boolean AND of dual safety interlock signals before enabling actuator drivers. Use Value: Enables fail-safe dual-channel validation using a single IC, reducing component count and board space versus discrete solutions. | Use Scenario: Implementing window lift control logic that requires simultaneous activation of up/down switch and door lock status. IC Role / Device Role / Timing Role: Combinatorial decision gate - validates concurrent user input and system permission before energizing motor driver enable lines. Use Value: Provides deterministic, glitch-free enable logic with no propagation delay mismatch between channels. |
| Medical Instrument Power Sequencing | Test Equipment Signal Routing |
Use Scenario: Enabling regulated power rails only when both master enable and thermal OK signals are asserted in portable diagnostic devices. IC Role / Device Role / Timing Role: Safety-critical enable gate - ensures power delivery is contingent on two independent health indicators. Use Value: Meets IEC 60601-1 requirements for redundant enable paths without adding microcontroller overhead. | Use Scenario: Routing analog multiplexer select lines in automated test equipment based on dual-mode configuration bits. IC Role / Device Role / Timing Role: Configuration logic translator - converts parallel mode settings into valid address codes for 1-of-16 muxes. Use Value: Eliminates timing skew between select bits by ensuring synchronous assertion via common gate propagation delay. |
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 |
|---|---|---|---|
| CD4081BM96 | Same logic function and pinout; slightly narrower VDD range (3–15 V); lower max operating temperature (+85°C) | Suitable for commercial-grade applications but not extended temperature industrial use | Select when cost sensitivity outweighs extended temp or 18 V support needs |
| 74HC08DR | Higher speed (19 ns typ @ 6 V), but narrower VDD (2–6 V); no triple diode protection; different pinout | Appropriate for 5 V-only high-speed digital systems, not multi-rail or ruggedized designs | Choose only for new 5 V logic families requiring faster propagation and smaller footprint |
Compared with CD4081BM96 and 74HC08DR, the MC14081BFR2 uniquely combines 18 V operation, –55°C to +125°C rating, and triple-diode input protection-making it the only option qualified for high-reliability, wide-supply industrial control nodes.
Availability
MC14081BFR2 is available at Aetrix Electronics and suitable for industrial PLCs, automotive body controllers, medical power sequencers, and test equipment requiring stable component supply across extended temperature and voltage ranges.
Supply support for MC14081BFR2 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
onsemi (formerly ON Semiconductor) is a global semiconductor manufacturer specializing in energy-efficient, high-performance silicon solutions for automotive, industrial, cloud, and IoT applications.
The MC14001B Series-including MC14081BFR2-is part of onsemi's legacy CMOS logic portfolio, engineered for robustness in harsh environments where low power, wide VDD, and high noise immunity are mandatory.
FAQ
What is the maximum supply voltage rating for MC14081BFR2?
The MC14081BFR2 has an absolute maximum DC supply voltage (VDD) rating of +18.0 V referenced to VSS. Operation beyond this value risks permanent device damage. For reliable long-term use, the recommended operating range remains 3.0 VDC to 18 VDC, with guaranteed performance across the full –55°C to +125°C ambient temperature range. Always observe derating curves for power dissipation above 65°C.
Does MC14081BFR2 support direct replacement for CD4081B in existing designs?
Yes, MC14081BFR2 is explicitly specified as a pin-for-pin replacement for CD4081B and other CD4000-series B-suffix devices. Its identical pinout, logic function, and electrical behavior-including triple diode input protection-enable drop-in substitution without PCB modification. However, verify that the wider 3–18 VDC operating range and extended temperature capability align with your system's requirements.
How should unused inputs be handled on MC14081BFR2?
All unused inputs on MC14081BFR2 must be tied to a defined logic level-either VDD or VSS-to prevent floating nodes that cause excessive current draw, oscillation, or ESD susceptibility. Since MC14081BFR2 implements AND gates, unused inputs should be connected to VDD to ensure they do not inhibit the gate's output state. Never leave inputs unconnected; doing so violates the device's safe operating conditions.
What is the output drive capability of MC14081BFR2 at 12 V supply?
At VDD = 12 V, MC14081BFR2 guarantees a minimum sink current (IOL) of 3.4 mA and source current (IOH) of –1.3 mA per output pin across the full temperature range. These values meet the requirement to drive two low-power TTL loads or one low-power Schottky TTL load. Actual measured performance at 25°C typically exceeds these minima-e.g., ~8.8 mA sink and –2.25 mA source-providing design margin for marginal loads.
Is MC14081BFR2 compatible with 3.3 V logic systems?
Yes, MC14081BFR2 operates down to 3.0 VDC and is fully functional at 3.3 V. However, note that input thresholds (VIH/VIL) scale with VDD: at 3.3 V, VIH ≈ 2.3 V and VIL ≈ 1.1 V. Ensure upstream 3.3 V logic drivers meet these levels. Also confirm that output VOH/VOL (e.g., VOH ≥ 3.25 V, VOL ≤ 0.05 V at 3.3 V) satisfy downstream receiver requirements-particularly for interfacing with modern low-voltage CMOS families.
MC14081BFR2 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:
- -
MC14081BFR2 FAQ
1.How can I place an order for MC14081BFR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC14081BFR2 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 MC14081BFR2 reliable?
The price and inventory of MC14081BFR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC14081BFR2 is usually 5 days.
3.What payment methods are accepted for MC14081BFR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC14081BFR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC14081BFR2?
MC14081BFR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC14081BFR2 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 MC14081BFR2?
For technical support, including MC14081BFR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC14081BFR2 requirements.
6.How does Aetrix verify that MC14081BFR2 is sourced from the original manufacturer or authorized distributors?
All MC14081BFR2 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 MC14081BFR2 meets industry standards.
7.What is the process for return or replacement of MC14081BFR2?
All MC14081BFR2 units undergo pre-shipment inspection (PSI). If there is an issue with MC14081BFR2, 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 MC14081BFR2 part is unused and in its original packaging.
Return procedure for MC14081BFR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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