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onsemi MC14012BFEL
- Part No.:
- MC14012BFEL
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
MC14012BFEL.pdf
- Description:
- IC GATE NAND 2CH 4-INP SOEIAJ-14
- Quantity:
- Payment:
- Shipping:
Inventory:2,612
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Product details
Overview
MC14012BFEL from onsemi is a dual 4-input NAND gate CMOS logic IC built with complementary P- and N-channel enhancement-mode MOSFETs in a monolithic structure. It operates across 3.0–18.0 VDC supply, delivers ±10 mA output drive per pin, exhibits <0.05 V low-level output voltage at 5 VDD, supports −55 °C to +125 °C ambient operation, and features double diode input protection - used in industrial control sequencers requiring high noise immunity and low static power.
For engineers reviewing the MC14012BFEL datasheet, pinout, applications, or equivalent options, key selection criteria include wide-voltage rail compatibility, guaranteed noise margins (1.0 V @ 5 V), SOIC-14 package footprint, buffered outputs, and automotive-grade alternatives with AEC-Q100 qualification.
Technical Context
The MC14012BFEL implements two independent 4-input NAND gates using CMOS technology, with all inputs protected by double diodes and all outputs buffered for improved drive capability and signal integrity. Its logic behavior follows standard NAND truth tables, with unused inputs requiring tie-to-rail (VDD for NAND) to prevent floating states.
It supports dynamic operation up to 3 MHz typical at 15 VDD with CL = 50 pF, achieves propagation delays as low as 50 ns (max) at 15 VDD, and maintains stable DC noise margins across temperature - 1.0 V @ 5 V, 2.0 V @ 10 V, and 2.5 V @ 15 V - due to tightly controlled VIH/VIL thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3.0 VDC to 18.0 VDC - enables single-rail operation across battery, industrial, and automotive subsystems without level-shifting. |
| Output Drive Current | ±4.2 mA sink/source @ 15 VDD - sufficient to directly drive two low-power TTL loads or one LS-TTL load over full temperature range. |
| Propagation Delay | 50 ns max @ 15 VDD, CL = 50 pF - ensures timing predictability in synchronous logic control and state-machine clocking. |
| Quiescent Supply Current | 1.5 µA max @ 15 VDD, TA = 125 °C - enables ultra-low standby power in always-on monitoring circuits. |
| DC Noise Margin | 2.5 V @ 15 VDD - provides robust immunity against EMI and crosstalk in noisy industrial environments. |
| Input Protection | Double diode clamping on all inputs - prevents latch-up and ESD damage during hot-plug or transient events. |
| Operating Temperature | −55 °C to +125 °C - qualified for under-hood automotive, downhole, and military-grade embedded systems. |
Pinout & Package
MC14012BFEL is housed in a Pb-free SOIC-14 (Case 751A) package with 1.27 mm pitch, 8.55–8.75 mm body width, and 3.80–4.00 mm body length. Pin 7 is VSS (ground), Pin 14 is VDD (supply), Pins 6 and 8 are no-connect (NC), and all other pins correspond to dual NAND gate inputs/outputs as verified in Figure 1 of the official datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 13 | IN 1A / IN 1B | First input of Gate A / First input of Gate B - must be tied to VDD if unused to avoid undefined logic state. |
| 2, 9 | IN 2A / IN 2B | Second input of Gate A / Second input of Gate B - shares same electrical characteristics and protection as all inputs. |
| 3, 10 | IN 3A / IN 3B | Third input of Gate A / Third input of Gate B - compatible with 3.0–18 V logic levels without external biasing. |
| 4, 11 | IN 4A / IN 4B | Fourth input of Gate A / Fourth input of Gate B - supports wired-OR expansion when combined with open-drain logic. |
| 5, 12 | OUTA / OUTB | Complementary NAND output of Gate A / Gate B - buffered to reduce capacitive loading effects on downstream stages. |
| 6, 8 | NC | No connection - internally unconnected; must remain unpopulated and unbonded on PCB layout. |
| 7 | VSS | Ground reference for all internal circuitry - requires low-impedance return path to minimize ground bounce. |
| 14 | VDD | Positive supply rail - decoupling capacitor (0.1 µF ceramic) required within 5 mm for stable switching performance. |
Key Features
| Feature | Design Value |
|---|---|
| All outputs buffered | Reduces output impedance and improves fan-out capability to ≥2 LSTTL loads across full voltage/temperature range. |
| Double diode input protection | Enables safe operation in environments with ±2 kV HBM ESD exposure without external TVS components. |
| Pb-free and RoHS compliant | Meets EU Directive 2011/65/EU and JESD204B process requirements for lead-free reflow soldering (260 °C peak). |
| Pin-for-pin replacement for CD4012B | Allows drop-in upgrade from legacy CD4000-series designs without PCB revision or firmware changes. |
| High noise immunity | Guaranteed 2.5 V DC noise margin at 15 VDD ensures reliable operation in electrically noisy motor-control or power-conversion systems. |
Applications
| Industrial PLC Logic Sequencing | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Implementing safety interlock logic in programmable logic controllers where input signals originate from limit switches, pressure sensors, and emergency stops. IC Role / Device Role / Timing Role: Dual NAND gate performing combinatorial logic evaluation for multi-condition enable/disable decisions with sub-100 ns timing resolution. Use Value: Wide 3–18 V supply tolerance allows direct interface with 12 V vehicle batteries and 24 V industrial rails; −55 °C to +125 °C rating supports under-dash mounting. |
Use Scenario: Controlling door lock actuation sequence based on key-fob signal validation, ignition status, and window position feedback. IC Role / Device Role / Timing Role: NAND-based gating of enable signals to solenoid drivers, ensuring mutually exclusive activation and preventing simultaneous conflicting commands. Use Value: Double-diode input protection withstands load-dump transients; AEC-Q100-qualified alternatives (e.g., NLV14012B) support automotive qualification paths. |
| Medical Infusion Pump Safety Logic | Downhole Oilfield Sensor Interface |
Use Scenario: Validating dual-channel flow sensor agreement before enabling peristaltic motor drive in Class II medical devices. IC Role / Device Role / Timing Role: Performing real-time NAND comparison of redundant sensor outputs to detect single-point failures and trigger fail-safe shutdown. Use Value: Ultra-low quiescent current (<1.5 µA @ 125 °C) extends battery life in portable units; RoHS/Pb-free compliance meets IEC 60601-1 environmental requirements. |
Use Scenario: Conditioning digital signals from high-temperature pressure transducers operating at 150 °C wellhead environments. IC Role / Device Role / Timing Role: Level-shifting and noise filtering of SPI or parallel sensor data prior to microcontroller capture. Use Value: Guaranteed operation up to +125 °C ambient enables placement near sensor heads; 18 V absolute max rating accommodates long-cable induced surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 4-input NAND gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD4012BE | Same pinout and logic function but rated only to +85 °C; lacks double diode input protection and automotive qualification. | Suitable for commercial-grade consumer electronics, not for automotive or extended-temperature industrial use. | Select CD4012BE only for cost-sensitive, non-automotive designs with ambient ≤85 °C and no ESD exposure risk. |
| NLV14012BDR2G | Identical electrical specs and SOIC-14 package; adds AEC-Q100 Grade 1 qualification, PPAP support, and unique traceability marking. | Required for production automotive BCM, ADAS domain controllers, and OEM-specified safety-critical modules. | Choose NLV14012BDR2G when automotive qualification, change control, or site-specific manufacturing tracking is mandated. |
Compared with CD4012BE, MC14012BFEL offers extended temperature range and input protection; compared with NLV14012BDR2G, it lacks automotive change control but provides identical logic performance at lower cost for non-OEM industrial use.
Availability
MC14012BFEL is available at Aetrix Electronics and suitable for industrial control sequencers, automotive body electronics, and medical safety logic circuits requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MC14012BFEL 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 focused on energy-efficient innovation for automotive, industrial, cloud, and IoT applications.
The MC14012BFEL belongs to the MC14000B series of high-voltage CMOS logic devices, designed specifically for robust, low-power digital control in harsh environments including automotive under-hood, factory automation, and medical equipment.
FAQ
What is the maximum supply voltage rating for MC14012BFEL?
The MC14012BFEL has an absolute maximum DC supply voltage (VDD) rating of +18.0 V, with a recommended operating range of 3.0 V to 18.0 V. Exceeding 18.0 V risks permanent damage per the Absolute Maximum Ratings table in the official onsemi datasheet. The device maintains specified logic performance across this full range, making MC14012BFEL suitable for 12 V and 24 V system integration without regulators.
Does MC14012BFEL support automotive qualification standards?
The MC14012BFEL itself is not AEC-Q100 qualified; however, its pin-compatible variant NLV14012BDR2G is fully AEC-Q100 Grade 1 qualified and PPAP-capable. MC14012BFEL shares identical electrical specifications and SOIC-14 packaging with the NLV version, differing only in traceability, change control, and qualification documentation - so MC14012BFEL may be used in pre-qualification prototyping or non-OEM automotive applications where formal certification is not required.
How should unused inputs be handled on MC14012BFEL?
All unused inputs on MC14012BFEL must be tied to a valid logic level - specifically to VDD for NAND gates - to prevent floating nodes that cause excessive current draw, oscillation, or logic errors. Leaving inputs unconnected violates the device's operational requirements stated in the datasheet and may result in unpredictable behavior or increased power consumption. MC14012BFEL does not include internal pull-up or pull-down resistors, so external connections are mandatory.
What is the output drive capability of MC14012BFEL at 12 V supply?
At VDD = 12 V, the MC14012BFEL delivers a minimum sink current (IOL) of 2.25 mA and source current (IOH) of −1.3 mA while maintaining VOH ≥ 11.0 V and VOL ≤ 0.05 V, per the Electrical Characteristics table. This enables direct interfacing with LS-TTL and CMOS loads without buffering. The MC14012BFEL sustains this drive strength across −55 °C to +125 °C, supporting reliable operation in thermally demanding applications.
Is MC14012BFEL pin-compatible with CD4012B series devices?
Yes, MC14012BFEL is explicitly specified as a pin-for-pin replacement for CD4012B-series devices, including CD4012BE and CD4012BD. The pin assignment (VDD = Pin 14, VSS = Pin 7, NC = Pins 6 & 8) and logic function match exactly. However, MC14012BFEL adds double diode input protection and extended temperature support not present in most CD4012B variants, making MC14012BFEL a functional and mechanical upgrade path.
MC14012BFEL 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:
- NAND Gate
- Number of Circuits:
- 2
- Number of Inputs:
- 4
- 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
MC14012BFEL FAQ
1.How can I place an order for MC14012BFEL through Aetrix?
Please submit a Request for Quotation (RFQ) for MC14012BFEL 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 MC14012BFEL reliable?
The price and inventory of MC14012BFEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC14012BFEL is usually 5 days.
3.What payment methods are accepted for MC14012BFEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC14012BFEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC14012BFEL?
MC14012BFEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC14012BFEL 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 MC14012BFEL?
For technical support, including MC14012BFEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC14012BFEL requirements.
6.How does Aetrix verify that MC14012BFEL is sourced from the original manufacturer or authorized distributors?
All MC14012BFEL 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 MC14012BFEL meets industry standards.
7.What is the process for return or replacement of MC14012BFEL?
All MC14012BFEL units undergo pre-shipment inspection (PSI). If there is an issue with MC14012BFEL, 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 MC14012BFEL part is unused and in its original packaging.
Return procedure for MC14012BFEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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