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onsemi MC14071BFL1
- Part No.:
- MC14071BFL1
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- -
- Datasheet:
-
MC14071BFL1.pdf
- Description:
- IC GATE OR
- Quantity:
- Payment:
- Shipping:
Inventory:4,000
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Product details
Overview
MC14071BFL1 from onsemi is a quad 2-input OR gate CMOS logic IC designed for low-power, high-noise-immunity digital signal combining in industrial control and instrumentation systems. It operates across a 3.0–18 VDC supply range, delivers ±4.2 mA output drive at 15 V, and features buffered outputs with double diode input protection. Its pin-for-pin compatibility with CD4071B enables drop-in replacement in legacy 4000-series designs.
For engineers reviewing the MC14071BFL1 datasheet, pinout, applications, or equivalent options, key selection criteria include wide-voltage operation (3–18 V), guaranteed noise margins up to 2.5 V at 15 V, TTL-load drive capability, and EIAJ SOIC-14 packaging with lifetime availability status.
Technical Context
The MC14071BFL1 implements four independent non-inverting OR gates using complementary MOS (CMOS) P- and N-channel enhancement-mode transistors in a monolithic structure. Each gate exhibits rail-to-rail output swing, with VOH ≥ 14.95 V and VOL ≤ 0.05 V at VDD = 15 V and TA = 25°C.
It supports operation from –55°C to +125°C ambient, requires unused inputs tied to VSS (0 V), and incorporates double diode input protection-except where triple protection applies per family specification (not applicable to MC14071B). Input thresholds scale with VDD: VIH = 11 V and VIL = 4.0 V at 15 V.
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 | 3.0 VDC to 18 VDC - enables single-supply operation across battery, industrial, and legacy logic rails |
| Output Drive | ±4.2 mA sink/source at VDD = 15 V - sufficient to drive two low-power TTL loads or one LS-TTL load |
| Input Thresholds | VIL = 4.0 V, VIH = 11.0 V at VDD = 15 V - ensures 2.5 V DC noise margin for robust signal integrity |
| Propagation Delay | 40 ns typical at VDD = 15 V, CL = 50 pF - supports reliable timing in sub-MHz combinatorial logic paths |
| Quiescent Current | 1.0 µA max at VDD = 15 V, TA = 25°C - enables ultra-low standby power in battery-powered systems |
| Operating Temperature | –55°C to +125°C - qualified for extended industrial and automotive under-hood environments |
Pinout & Package
EIAJ SOIC-14 package (Case 965-01), 8.2 mm × 5.45 mm × 1.42 mm body, gull-wing leads, 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 5, 6, 8, 9, 12, 13 | Input A/B of Gates 1–4 | Dual inputs per OR gate; all must be referenced to VSS when unused |
| 3, 4, 10, 11 | Output Y of Gates 1–4 | Buffered CMOS outputs capable of full rail-to-rail swing |
| 7 | VSS | Ground reference terminal - mandatory connection for logic reference and ESD path |
| 14 | VDD | Positive supply terminal - must be decoupled locally with 0.1 µF ceramic capacitor |
Key Features
| Feature | Design Value |
|---|---|
| Wide Supply Range | 3.0–18 VDC operation eliminates need for level-shifting in mixed-voltage systems |
| High Noise Immunity | Guaranteed 2.5 V DC noise margin at 15 V supply ensures reliable operation in electrically noisy environments |
| Pin-for-Pin CD4000 Compatibility | Direct replacement for CD4071B without PCB modification - simplifies legacy system upgrades |
| Input Protection | Double diode clamping on all inputs prevents damage from ESD and transient overvoltage events |
| Industrial Temp Range | –55°C to +125°C qualification supports deployment in harsh thermal environments without derating |
Applications
| Industrial Control Logic | Power Sequencing Monitor |
|---|---|
Use Scenario: Combining multiple fault signals (overtemp, overcurrent, watchdog timeout) into a single shutdown request line. IC Role / Device Role / Timing Role: OR gate performing wired-OR aggregation of asynchronous safety inputs. Use Value: Eliminates need for discrete diodes or additional logic; leverages guaranteed 2.5 V noise margin to reject switching noise on long sensor cables. | Use Scenario: Validating correct power-up sequence across multiple rails (e.g., 12 V → 5 V → 3.3 V) before enabling microcontroller reset. IC Role / Device Role / Timing Role: Combinatorial logic element verifying all enable conditions are met prior to releasing reset. Use Value: Uses rail-to-rail output swing to directly interface with reset controllers requiring clean 0/15 V thresholds. |
| Legacy System Upgrade | Low-Power Sensor Interface |
Use Scenario: Replacing obsolete CD4071B in field-deployed PLC I/O modules without redesigning PCB layout. IC Role / Device Role / Timing Role: Pin-compatible functional replacement preserving existing trace routing and BOM. Use Value: Maintains identical timing and drive strength while reducing quiescent current by >90% versus older CD4000 variants. | Use Scenario: Conditioning open-collector outputs from analog comparators or Hall-effect sensors into clean CMOS logic levels. IC Role / Device Role / Timing Role: Level translator and signal combiner for multi-sensor alarm detection. Use Value: Wide 3–18 V supply allows direct use of unregulated battery or sensor supply rails, minimizing external components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar OR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD4071BE | Same logic function and pinout; wider propagation delay (150 ns typ @ 15 V), higher IDD (10 µA), no lifetime status guarantee | Legacy through-hole only (PDIP); not recommended for new designs due to obsolescence risk | Select MC14071BFL1 for surface-mount assembly, lower power, and assured long-term supply |
| 74HC32D | Higher speed (15 ns typ @ 4.5 V), narrower supply (2–6 V), lower drive (±4 mA), different pinout | Requires level-shifting in 12/15 V systems; unsuitable for direct CD4000 replacement | Choose only if operating below 6 V and speed >40 MHz is required; otherwise MC14071BFL1 offers broader voltage flexibility |
Compared with CD4071BE and 74HC32D, MC14071BFL1 uniquely balances wide-voltage operation (3–18 V), industrial temperature support, pin compatibility with legacy 4000-series designs, and lifetime availability - making it optimal for cost-sensitive, long-lifecycle industrial upgrades.
Availability
MC14071BFL1 is available at Aetrix Electronics and suitable for industrial control logic, power sequencing monitors, legacy system upgrades, and low-power sensor interfaces requiring stable component supply across extended product lifecycles.
Supply support for MC14071BFL1 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 supplier specializing in energy-efficient power management, analog, logic, and sensor solutions for automotive, industrial, and cloud infrastructure markets.
The MC14071BFL1 belongs to the B-Series CMOS logic family, designed specifically for low-power, high-noise-immunity digital interfacing in harsh environments where wide supply voltage tolerance and long-term reliability are critical.
FAQ
What is the maximum supply voltage rating for MC14071BFL1?
The absolute maximum DC supply voltage (VDD) for MC14071BFL1 is +18.0 V, with a recommended operating range of 3.0 V to 18 V. Exceeding 18.0 V may cause permanent device damage, as specified in the Absolute Maximum Ratings table of the official datasheet. Operation at 15 V is common for maximizing noise margin and output drive capability.
Is MC14071BFL1 pin-compatible with CD4071B?
Yes, MC14071BFL1 is explicitly documented as a pin-for-pin replacement for CD4071B. Both devices share identical pin assignments for VDD (pin 14), VSS (pin 7), four OR gate inputs (pins 1,2,5,6,8,9,12,13), and outputs (pins 3,4,10,11). This enables direct substitution in existing CD4071B layouts without PCB changes.
What is the recommended handling for unused inputs on MC14071BFL1?
Unused inputs on MC14071BFL1 must be tied to VSS (ground), as specified in the datasheet's "Circuit Schematic" and "General Notes" sections. This prevents floating inputs from causing excessive supply current, oscillation, or unpredictable logic states. Tying to VDD is prohibited for OR/NOR gates - unlike AND/NAND variants which require VDD termination.
Does MC14071BFL1 support operation at –55°C?
Yes, MC14071BFL1 is fully specified and qualified for operation from –55°C to +125°C ambient temperature. The Electrical Characteristics tables include min/max values across this full range, and the Maximum Ratings section confirms TA = –55°C to +125°C. No derating is required within this envelope.
What package type does MC14071BFL1 use, and what is its case outline?
MC14071BFL1 uses the EIAJ SOIC-14 package (Case Outline 965-01), as confirmed in the "Orderable Parts" table and "PACKAGE DIMENSIONS" section. It features gull-wing leads, 1.27 mm pitch, and dimensions of 9.90–10.50 mm × 5.10–5.45 mm × 1.42 mm max height. This differs from PDIP (646-06), SOIC (751A-03), and TSSOP (948G-01) variants.
MC14071BFL1 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:
- -
MC14071BFL1 FAQ
1.How can I place an order for MC14071BFL1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC14071BFL1 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 MC14071BFL1 reliable?
The price and inventory of MC14071BFL1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC14071BFL1 is usually 5 days.
3.What payment methods are accepted for MC14071BFL1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC14071BFL1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC14071BFL1?
MC14071BFL1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC14071BFL1 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 MC14071BFL1?
For technical support, including MC14071BFL1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC14071BFL1 requirements.
6.How does Aetrix verify that MC14071BFL1 is sourced from the original manufacturer or authorized distributors?
All MC14071BFL1 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 MC14071BFL1 meets industry standards.
7.What is the process for return or replacement of MC14071BFL1?
All MC14071BFL1 units undergo pre-shipment inspection (PSI). If there is an issue with MC14071BFL1, 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 MC14071BFL1 part is unused and in its original packaging.
Return procedure for MC14071BFL1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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