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onsemi MC14071BFELG
- Part No.:
- MC14071BFELG
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
MC14071BFELG.pdf
- Description:
- IC GATE OR 4CH 2-INP SOEIAJ-14
- Quantity:
- Payment:
- Shipping:
Inventory:2,088
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Product details
Overview
MC14071BFELG 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, instrumentation, and power management systems. It operates across 3.0–18.0 VDC supply range, delivers ±10 mA output drive per pin, and features buffered outputs with guaranteed DC noise margins of 1.0 V (5 V), 2.0 V (10 V), and 2.5 V (15 V).
For engineers reviewing the MC14071BFELG datasheet, pinout, applications, or equivalent options, this device serves as a direct pin-for-pin replacement for CD4071B in legacy 14-pin SOEIAJ packages - supporting design continuity in space-constrained, wide-voltage-rail embedded systems requiring robust logic-level translation and noise resilience.
Technical Context
The MC14071BFELG implements four independent 2-input OR gates using complementary MOS (CMOS) P- and N-channel enhancement-mode transistors in a monolithic structure. Each gate provides non-inverting logic function with rail-to-rail output swing and input thresholds defined by VIL ≤ 4.0 V and VIH ≥ 11.0 V at VDD = 15 V.
It supports operation from −55 °C to +125 °C ambient, exhibits quiescent current as low as 0.5 µA per package at 25 °C, and maintains output drive capability of up to 4.2 mA sink / −4.2 mA source at VDD = 15 V while meeting ESD ratings >3 kV (HBM). Input protection includes double diode clamping per pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad 2-input OR gate - performs Boolean A+B per channel; no internal inversion. |
| Supply Voltage Range | 3.0 VDC to 18.0 VDC - enables single-supply operation across battery, industrial, and automotive subsystems without level-shifting. |
| Output Drive Capability | ±4.2 mA at VDD = 15 V - sufficient to directly drive two low-power TTL loads or one LS-TTL load over full temperature range. |
| DC Noise Margin | ≥2.5 V at VDD = 15 V - ensures reliable switching in electrically noisy environments such as motor drives or relay interfaces. |
| Propagation Delay | 40 ns typical (tPLH/tPHL) at VDD = 15 V, CL = 50 pF - balances speed and power efficiency for medium-speed combinational logic. |
| Input Capacitance | 7.5 pF max - minimizes loading on preceding stage and supports higher-frequency fan-out without signal degradation. |
| Quiescent Current | 1.0 µA max at VDD = 15 V, TA = 125 °C - enables ultra-low standby power in always-on monitoring circuits. |
Pinout & Package
MC14071BFELG uses the SOEIAJ-14 (also known as JEDEC MS-012) surface-mount package - a 14-pin narrow-body small-outline IC with 1.27 mm pitch, 8.75 mm × 3.9 mm body, and Pb-free finish. Pin 1 is marked by notch or bevel; pin 7 is VSS (ground); pin 14 is VDD (supply).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 8, 9 | Input A/B of Gates 1–4 | Two dedicated inputs per OR gate; unused inputs must be tied to VSS to prevent floating-state oscillation. |
| 3, 4, 10, 11 | Output Y of Gates 1–4 | Buffered CMOS outputs capable of rail-to-rail swing; each can source/sink ±10 mA peak. |
| 7 | VSS | Ground reference for all logic and I/O; must be low-impedance connection to minimize ground bounce. |
| 14 | VDD | Positive supply rail; decoupling capacitor (0.1 µF ceramic) required within 5 mm of this pin. |
| 5, 6, 12, 13 | Input A/B of Gates 1–4 | Complementary input pairs - e.g., pins 1 & 2 feed Gate 1; pins 5 & 6 feed Gate 2; etc. |
Key Features
| Feature | Design Value |
|---|---|
| Wide Supply Range | 3.0–18.0 VDC operation eliminates need for separate voltage regulators in multi-rail systems. |
| Rail-to-Rail Output Swing | VOH ≥ VDD − 0.05 V and VOL ≤ 0.05 V ensure full logic-level compatibility with downstream CMOS/TTL stages. |
| High Noise Immunity | Guaranteed 2.5 V DC noise margin at 15 V supply prevents false triggering in EMI-prone industrial enclosures. |
| Pb-Free & RoHS Compliant | Meets global environmental compliance requirements; compatible with lead-free reflow profiles (peak 260 °C). |
| Automotive-Qualified Variant Available | NLV14071B series meets AEC-Q100 Grade 1 (−40 °C to +125 °C) with PPAP support - same logic function, enhanced reliability. |
Applications
| Industrial Control Logic | Power Sequencing Monitor |
|---|---|
|
Use Scenario: Combining fault signals from multiple sensors (e.g., overtemperature, overcurrent, undervoltage) into a single system-fault line. IC Role / Device Role / Timing Role: OR gate aggregating asynchronous digital alerts with no propagation delay stacking. Use Value: Enables immediate shutdown response without software intervention; leverages wide VDD range to interface directly with 12 V sensor rails. |
Use Scenario: Validating correct power-up order of multiple DC/DC converters before enabling microcontroller reset. IC Role / Device Role / Timing Role: Logic-level combiner ensuring all "power-good" signals are asserted before releasing reset. Use Value: Prevents brownout-induced MCU lockup; buffered outputs drive reset IC inputs reliably across 3–15 V supply variations. |
| Legacy System Upgrade | Low-Power Sensor Interface |
|
Use Scenario: Replacing obsolete CD4071BE in field-deployed test equipment where PCB layout cannot be modified. IC Role / Device Role / Timing Role: Pin-compatible drop-in replacement preserving existing SOEIAJ-14 footprint and routing. Use Value: Maintains functional equivalence while improving noise margin and reducing quiescent current by >50% vs. original CD4000 series. |
Use Scenario: Enabling wake-up logic for battery-powered IoT nodes using motion, light, and door-switch inputs. IC Role / Device Role / Timing Role: OR-ing multiple interrupt sources to trigger MCU wake-from-sleep event. Use Value: Draws only 1.0 µA at 125 °C - extends shelf life and operational runtime in unattended remote deployments. |
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 and SOEIAJ-14 package, but wider propagation delay (150 ns typ @ 10 V), higher IDD (5 µA min), and no guaranteed 125 °C operation. | Legacy-only use; lacks modern ESD rating (>3 kV HBM) and RoHS compliance. | Select when maintaining exact historical BOM; avoid for new designs requiring extended temperature or reliability. |
| MC14071BDTR2G | TSSOP-14 package (4.4 × 5.0 mm), identical electrical specs, same pinout mapping, but thinner profile and finer pitch (0.65 mm). | Suitable for high-density PCBs where board space is constrained; requires rework of solder stencil and placement fiducials. | Choose for next-generation compact designs; verify thermal relief and solder joint integrity under mechanical stress. |
Compared with CD4071BE, MC14071BFELG offers 3× lower quiescent current and 3.5× faster propagation at 15 V; versus MC14071BDTR2G, it retains legacy SOEIAJ-14 compatibility for drop-in replacement in serviceable field units without layout change.
Availability
MC14071BFELG is available at Aetrix Electronics and suitable for industrial control logic, power sequencing monitors, and legacy system upgrades requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MC14071BFELG 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 silicon solutions for automotive, industrial, cloud, and IoT applications.
The MC14071BFELG belongs to the B-Suffix Series CMOS Gates product line - engineered for low-power, high-noise-immunity digital logic in harsh environments where reliability and wide supply tolerance are critical.
FAQ
What is the maximum operating temperature for MC14071BFELG?
The MC14071BFELG is rated for ambient temperatures from −55 °C to +125 °C, with guaranteed performance across this full range. Its quiescent current remains below 1.0 µA even at +125 °C, making MC14071BFELG suitable for under-hood automotive modules and industrial motor controls exposed to extreme thermal cycling.
Does MC14071BFELG require external pull-up or pull-down resistors on unused inputs?
Yes - all unused inputs of MC14071BFELG must be tied to VSS (ground) to prevent floating states that cause excessive current draw and potential oscillation. This requirement is explicitly stated in the datasheet and applies to every OR gate input not actively used in the circuit design.
Can MC14071BFELG drive a standard LED directly?
No - MC14071BFELG is not intended for direct LED driving. Its absolute maximum output current is ±10 mA per pin, but sustained DC current above 4.2 mA at VDD = 15 V exceeds recommended operating conditions. Use an external transistor or dedicated LED driver stage when interfacing with LEDs.
Is MC14071BFELG pin-compatible with CD4071B devices?
Yes - MC14071BFELG is specified as a pin-for-pin replacement for CD4071B in the SOEIAJ-14 package. The pin assignments, logic function, and DC electrical characteristics align fully, enabling direct substitution in legacy designs without PCB modification.
What is the meaning of the 'FELG' suffix in MC14071BFELG?
The 'FELG' suffix denotes SOEIAJ-14 package (F), tape-and-reel packaging (E), Pb-free construction (L), and RoHS compliance (G). This matches the ordering code definition in the onsemi datasheet and confirms MC14071BFELG's compliance with modern environmental and assembly standards.
MC14071BFELG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 4000B
- Package/Case:
- 14-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- OR Gate
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 3V ~ 18V
- Current - Quiescent (Max):
- 1 µA
- Current - Output High, Low:
- 8.8mA, 8.8mA
- Input Logic Level - Low:
- 1.5V ~ 4V
- Input Logic Level - High:
- 3.5V ~ 11V
- Max Propagation Delay @ V, Max CL:
- 100ns @ 15V, 50pF
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOEIAJ-14
MC14071BFELG FAQ
1.How can I place an order for MC14071BFELG through Aetrix?
Please submit a Request for Quotation (RFQ) for MC14071BFELG 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 MC14071BFELG reliable?
The price and inventory of MC14071BFELG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC14071BFELG is usually 5 days.
3.What payment methods are accepted for MC14071BFELG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC14071BFELG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC14071BFELG?
MC14071BFELG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC14071BFELG 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 MC14071BFELG?
For technical support, including MC14071BFELG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC14071BFELG requirements.
6.How does Aetrix verify that MC14071BFELG is sourced from the original manufacturer or authorized distributors?
All MC14071BFELG 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 MC14071BFELG meets industry standards.
7.What is the process for return or replacement of MC14071BFELG?
All MC14071BFELG units undergo pre-shipment inspection (PSI). If there is an issue with MC14071BFELG, 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 MC14071BFELG part is unused and in its original packaging.
Return procedure for MC14071BFELG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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