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onsemi MC14001UBD
- Part No.:
- MC14001UBD
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MC14001UBD.pdf
- Description:
- IC GATE NOR 4CH 2-INP 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,699
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Product details
Overview
MC14001UBD from onsemi is a quad 2-input NOR gate CMOS logic IC designed for low-power, high-noise-immunity digital systems. It operates across 3.0–18 VDC supply, delivers ±10 mA output drive, exhibits 5.0 pF input capacitance, and supports −55°C to +125°C ambient operation - ideal for industrial control timing and reset logic circuits.
For engineers reviewing the MC14001UBD datasheet, pinout, applications, or equivalent options, key selection criteria include its unbuffered NOR function, SOIC-14 package compatibility with CD4000-series layouts, rail-to-rail input voltage tolerance, and guaranteed 125°C operation in harsh environments.
Technical Context
The MC14001UBD implements four independent 2-input NOR gates using complementary MOS (CMOS) P- and N-channel enhancement-mode transistors on a single monolithic die. Each gate features double diode input protection and requires unused inputs tied to VSS (logic low) to prevent floating-state instability.
Its switching behavior is characterized by propagation delays of 40–180 ns (VDD = 5–15 V, CL = 50 pF), rise/fall times scaling linearly with load capacitance, and output drive capability sufficient to interface directly with two low-power TTL loads over full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad 2-input NOR - provides four independent OR-NOT gates for combinational logic synthesis |
| Supply Voltage Range | 3.0 VDC to 18 VDC - enables direct battery-powered operation and compatibility with legacy 5/12/15 V systems |
| Input Voltage Range | −0.5 V to VDD + 0.5 V - supports robust noise margin and transient immunity without external clamping |
| Output Drive Current | ±10 mA per pin - sufficient to drive two LP-TTL loads or one LSTTL load across full temperature range |
| Quiescent Current | 0.0005–0.0015 A per package at 25°C - ensures ultra-low static power in always-on monitoring circuits |
| Operating Temperature | −55°C to +125°C - validated for extended industrial, automotive under-hood, and aerospace subsystem use |
| Input Capacitance | 5.0–7.5 pF - minimizes capacitive loading on preceding stage and preserves high-speed signal integrity |
Pinout & Package
MC14001UBD is housed in a Pb-free SOIC-14 (Case 751A) package measuring 8.55–8.75 mm × 3.80–4.00 mm × 1.35–1.75 mm, with 1.27 mm pitch and gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 5, 6, 8, 9, 12, 13 | Input (IN 1A–IN 2D) | Eight dedicated gate inputs - each pair forms one NOR gate; all require explicit VSS tie-down when unused |
| 3, 4, 10, 11 | Output (OUTA–OUTD) | Four buffered NOR outputs - capable of sourcing/sinking ±10 mA with rail-aligned VOH/VOL |
| 7 | VSS (Ground) | Common reference for all logic levels and substrate connection - must be low-impedance path |
| 14 | VDD (Supply) | Positive supply rail - decoupling capacitor required within 10 mm for stable high-frequency operation |
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 | Input thresholds scale with VDD (VIH ≈ 0.7×VDD, VIL ≈ 0.3×VDD), ensuring reliable logic discrimination |
| Double Diode Protection | ESD-rated inputs withstand ≥2 kV HBM - reduces need for external TVS in ruggedized designs |
| Pb-Free & RoHS Compliant | Meets global environmental regulations and supports lead-free reflow soldering profiles |
| CD4000-Series Pin Compatibility | Direct drop-in replacement for CD4001UB - simplifies legacy system upgrades and BOM rationalization |
Applications
| Industrial Sensor Interface | Automotive Power Sequencing |
|---|---|
Use Scenario: Level-shifting and noise filtering for analog sensor outputs feeding microcontroller ADCs in factory-floor PLC modules. IC Role / Device Role / Timing Role: NOR gate used as active-low enable for signal conditioning path and as reset synchronizer for ADC sampling clock. Use Value: 125°C rating ensures reliability near motor drives; rail-to-rail input tolerance accommodates varying sensor output swing without external biasing. | Use Scenario: Controlled startup sequencing of infotainment, ADAS, and body-control ECUs after ignition-on event. IC Role / Device Role / Timing Role: NOR-based combinational logic generates delayed enable signals and fault-masking windows during power ramp-up. Use Value: −55°C to +125°C operation meets AEC-Q100 Grade 1 requirements; low IDD enables always-on wake-up detection without battery drain. |
| Medical Equipment Safety Logic | Energy Meter Tamper Detection |
Use Scenario: Redundant interlock circuitry verifying door closure, pressure thresholds, and emergency stop status before actuator activation. IC Role / Device Role / Timing Role: Quad NOR implements voting logic and hardware-enforced shutdown paths independent of firmware. Use Value: Unbuffered architecture ensures predictable propagation delay (<180 ns max); double-diode protection guards against ESD events in clinical environments. | Use Scenario: Detecting unauthorized enclosure opening or magnetic tampering via reed switch or Hall sensor inputs. IC Role / Device Role / Timing Role: NOR gate combines multiple tamper inputs into a single latched alarm flag with debounced edge detection. Use Value: 3.0 V minimum supply allows direct connection to coin-cell backup; 5 pF Cin minimizes leakage-induced false triggers in long PCB traces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NOR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD4001BE | Same logic function and pinout but rated only to +85°C; higher quiescent current (1 μA vs. 0.5 μA typical at 5 V) | Limited to commercial-temperature consumer or lab equipment; not suitable for under-hood or outdoor industrial use | Select CD4001BE only if cost is primary constraint and operating temperature stays below 85°C |
| 74HC02DR | Higher speed (tPD ≈ 10 ns at 5 V) but narrower supply range (2–6 V); no 125°C rating or double-diode protection | Better for high-frequency clock gating in 3.3 V embedded systems; lacks ruggedness for industrial field deployment | Choose 74HC02DR when speed > 10 MHz is required and environment is benign; avoid where ESD or wide VDD is critical |
Compared with CD4001BE and 74HC02DR, MC14001UBD uniquely balances ultra-wide voltage operation, extended temperature capability, and input protection - making it the only option among the three qualified for AEC-Q100 automotive and harsh industrial deployments without derating.
Availability
MC14001UBD is available at Aetrix Electronics and suitable for industrial control systems, automotive power management modules, medical safety interlocks, and energy metering platforms requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MC14001UBD 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, sensing, and logic solutions for automotive, industrial, and cloud infrastructure markets.
The MC14001UBD belongs to the UB-Suffix CMOS logic family, engineered specifically for high-reliability applications demanding wide supply voltage tolerance, extreme temperature resilience, and intrinsic noise immunity - targeting legacy system upgrades and mission-critical embedded control.
FAQ
What is the maximum operating temperature for MC14001UBD?
The MC14001UBD is fully specified and tested from −55°C to +125°C ambient temperature. This rating is confirmed in the Absolute Maximum Ratings table and Electrical Characteristics section of the official onsemi datasheet (Rev. 11, October 2024). Its performance remains guaranteed across this full range without derating, making MC14001UBD suitable for under-hood automotive and industrial environments where thermal stress is severe.
Does MC14001UBD support 3.3 V logic systems?
Yes, MC14001UBD supports 3.3 V operation as part of its 3.0–18 VDC supply range. At VDD = 3.3 V, its VOH is guaranteed ≥3.25 V and VOL ≤0.05 V (per Electrical Characteristics table), providing adequate noise margins for interfacing with standard 3.3 V CMOS inputs. However, output drive strength is reduced versus 5 V operation - verify IOL/IOH requirements against your load.
Is MC14001UBD pin-compatible with CD4001UB devices?
Yes, MC14001UBD is explicitly stated in the datasheet as a pin-for-pin replacement for CD4001UB series devices. Both share identical SOIC-14 pin assignments, logic function (quad 2-input NOR), and electrical interface characteristics. This allows direct substitution in existing CD4001UB-based PCBs without layout changes, provided thermal and voltage margin requirements are verified.
How should unused inputs on MC14001UBD be handled?
Unused inputs on MC14001UBD must be tied to VSS (ground), as specified in the datasheet's "General Description" and Figure 1 notes. This is mandatory because MC14001UBD implements NOR gates - floating inputs can cause excessive current draw, oscillation, or latch-up. Tying to VDD would force the gate output low regardless of other input state, violating intended logic behavior.
What packaging options are available for MC14001UBD?
MC14001UBD is supplied in Pb-free SOIC-14 (Case 751A) packaging, available in both rail (55 units) and tape-and-reel (2500 units) formats. The ordering code MC14001UBDR2G denotes the tape-and-reel variant. No DIP, TSSOP, or QFN variants exist for this specific part number - only SOIC-14 is offered per onsemi's official Ordering Information table.
MC14001UBD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 4000B
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- NOR Gate
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 3V ~ 18V
- Current - Quiescent (Max):
- 1 µA
- Current - Output High, Low:
- 3.5mA, 8.8mA
- Input Logic Level - Low:
- 1V ~ 2.5V
- Input Logic Level - High:
- 4V ~ 12.5V
- Max Propagation Delay @ V, Max CL:
- 80ns @ 15V, 50pF
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
MC14001UBD FAQ
1.How can I place an order for MC14001UBD through Aetrix?
Please submit a Request for Quotation (RFQ) for MC14001UBD 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 MC14001UBD reliable?
The price and inventory of MC14001UBD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC14001UBD is usually 5 days.
3.What payment methods are accepted for MC14001UBD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC14001UBD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC14001UBD?
MC14001UBD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC14001UBD 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 MC14001UBD?
For technical support, including MC14001UBD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC14001UBD requirements.
6.How does Aetrix verify that MC14001UBD is sourced from the original manufacturer or authorized distributors?
All MC14001UBD 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 MC14001UBD meets industry standards.
7.What is the process for return or replacement of MC14001UBD?
All MC14001UBD units undergo pre-shipment inspection (PSI). If there is an issue with MC14001UBD, 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 MC14001UBD part is unused and in its original packaging.
Return procedure for MC14001UBD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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