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onsemi MC14081BDT
- Part No.:
- MC14081BDT
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- -
- Datasheet:
-
MC14081BDT.pdf
- Description:
- IC GATE AND
- Quantity:
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- Shipping:
Inventory:7,680
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Product details
Overview
MC14081BDT from onsemi is a quad 2-input AND gate CMOS logic IC in TSSOP-14 package, operating from 3.0 V to 18.0 V supply, with ±10 mA output drive capability, triple diode input protection, and guaranteed operation from −55 °C to +125 °C - used in industrial control signal conditioning and low-power digital interface buffering.
For engineers reviewing the MC14081BDT datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, real-world timing behavior at 5/10/15 V, input/output voltage thresholds, noise margin data, and validated alternative parts for legacy CMOS logic migration.
Technical Context
The MC14081BDT implements four independent 2-input AND gates using complementary MOS (CMOS) P- and N-channel enhancement-mode transistors on a single monolithic die. Each gate features buffered outputs and triple diode protection on all inputs - distinguishing it from standard CD4000-series devices.
It supports wide-supply operation (3–18 V), delivers up to 4.2 mA sink current at VDD = 15 V, and exhibits propagation delays of 40 ns (typ) to 80 ns (max) per gate at CL = 50 pF and VDD = 15 V - enabling reliable use in mixed-voltage digital systems and noise-prone environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad 2-input AND gate - provides four independent Boolean AND operations per package. |
| Supply Voltage Range | 3.0 V to 18.0 V DC - enables direct interfacing with 5 V, 10 V, and 15 V logic rails without level shifters. |
| Input Protection | Triple diode protection on all inputs - improves ESD robustness and transient immunity beyond standard CMOS. |
| Output Drive | ±10 mA max per pin - sufficient to drive two low-power TTL loads or one low-power Schottky TTL load across full temperature range. |
| Propagation Delay | 40 ns (typ) at VDD = 15 V, CL = 50 pF - defines maximum operating frequency (~12 MHz) for clean edge-sensitive applications. |
| DC Noise Margin | 2.5 V at VDD = 15 V - ensures stable logic state retention under high-noise industrial conditions. |
| Quiescent Current | 1.0 µA max per package at VDD = 15 V - enables ultra-low standby power in battery-backed or energy-constrained systems. |
Pinout & Package
TSSOP-14 (DT suffix, Case 948G), 4.4 mm × 5.0 mm body, 0.65 mm pitch, exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 5, 6, 8, 9, 12, 13 | Input A/B of Gates A–D | Dedicated AND gate inputs; unused inputs must be tied to VDD to prevent floating-induced leakage or oscillation. |
| 3, 4, 10, 11 | Output Y of Gates A–D | Buffered CMOS outputs; capable of sourcing/sinking ≥0.36 mA at VOL = 0.4 V (VDD = 5 V). |
| 7 | VSS | Ground reference pin - must be connected to system common ground with low-impedance path. |
| 14 | VDD | Positive supply rail - decoupling capacitor (0.1 µF ceramic) required within 5 mm for stable switching. |
Key Features
| Feature | Design Value |
|---|---|
| Wide Supply Range | 3.0–18.0 V operation eliminates need for separate voltage regulators in multi-rail systems. |
| High Noise Immunity | Guaranteed 2.5 V DC noise margin at 15 V supply ensures reliable operation in electrically noisy factory environments. |
| Triple Input Protection | Enhanced ESD tolerance (beyond standard double-diode) reduces field failure risk in handling and assembly. |
| Pin-for-Pin Compatibility | Direct replacement for CD4081B in TSSOP-14 footprint - enables drop-in upgrade without PCB redesign. |
| Extended Temperature Range | −55 °C to +125 °C operation supports deployment in automotive under-hood, aerospace, and industrial motor control applications. |
Applications
| Industrial PLC I/O Conditioning | Legacy System Logic Interface |
|---|---|
Use Scenario: Isolating and combining sensor status signals (e.g., limit switches, proximity sensors) before feeding into microcontroller GPIOs in programmable logic controllers. IC Role / Device Role / Timing Role: MC14081BDT performs wired-AND signal aggregation and level translation between 12 V industrial sensors and 3.3/5 V MCU inputs. Use Value: Eliminates need for discrete pull-up resistors and external buffers while maintaining noise margin >2 V at 12 V supply. | Use Scenario: Replacing obsolete CD4081B in retrofitted instrumentation panels where space-constrained TSSOP packaging is required. IC Role / Device Role / Timing Role: MC14081BDT serves as pin-compatible AND logic element in analog-to-digital front-end sequencing and calibration enable paths. Use Value: Maintains identical timing and drive strength while improving ESD robustness and thermal reliability over legacy DIP/SOIC versions. |
| Low-Power Remote Sensor Hub | Automotive Body Control Module |
Use Scenario: Enabling wake-up logic in battery-powered environmental monitoring nodes that activate only when multiple sensor thresholds are simultaneously exceeded. IC Role / Device Role / Timing Role: MC14081BDT implements multi-sensor AND gating to reduce MCU wake-up false triggers and extend battery life. Use Value: Quiescent current ≤1.0 µA at 15 V allows years of operation on coin-cell batteries without duty-cycling overhead. | Use Scenario: Interlocking door lock actuation signals with ignition status and gear position in 12 V automotive body control modules. IC Role / Device Role / Timing Role: MC14081BDT performs safety-critical AND validation of redundant enable conditions before energizing solenoid drivers. Use Value: Guaranteed −55 °C to +125 °C operation and 10 mA output drive ensure functional safety compliance without derating. |
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; lower max VDD (15 V vs. 18 V); no triple diode protection; higher quiescent current (5 µA vs. 1 µA). | Not rated for 18 V operation or extended −55 °C start-up; less suitable for high-noise industrial environments. | Select MC14081BDT when 18 V tolerance, enhanced ESD protection, or extended temperature range is required. |
| 74HC08PW,118 | Higher speed (8 ns typ propagation delay), but narrower supply range (2–6 V); incompatible with 12/15 V systems; no triple diode protection. | Only suitable for 5 V-only digital systems; cannot replace MC14081BDT in mixed-voltage or high-voltage industrial designs. | Choose MC14081BDT for legacy-compatible, wide-supply, high-immunity AND logic; choose 74HC08 for high-speed 5 V consumer applications. |
Compared with CD4081BM96 and 74HC08PW,118, the MC14081BDT uniquely combines 18 V operation, triple-diode input protection, and −55 °C to +125 °C qualification - making it the sole option for ruggedized, multi-rail, and long-lifecycle industrial deployments requiring direct CD4000-series compatibility.
Availability
MC14081BDT is available at Aetrix Electronics and suitable for industrial PLC I/O conditioning, legacy system logic interface, and low-power remote sensor hub applications requiring stable component supply across extended temperature and voltage ranges.
Supply support for MC14081BDT 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 sensing solutions for automotive, industrial, and cloud infrastructure markets.
The MC14001B Series - including MC14081BDT - was designed for high-noise-immunity, low-power digital logic in harsh environments, targeting industrial automation, instrumentation, and legacy system modernization.
FAQ
What is the maximum supply voltage rating for MC14081BDT?
The MC14081BDT has an absolute maximum DC supply voltage (VDD) rating of +18.0 V, with recommended operating range from 3.0 V to 18.0 V. Exceeding 18.0 V risks permanent damage. At 15 V operation, it delivers 4.2 mA sink current per output while maintaining 2.5 V DC noise margin - critical for industrial 12–15 V logic domains.
Does MC14081BDT require external pull-up resistors on unused inputs?
No - unused inputs of MC14081BDT must be tied directly to VDD (not left floating or pulled via resistors), as specified in the datasheet to prevent increased supply current and potential oscillation. The device's triple diode protection and CMOS input structure eliminate need for external pull-ups; connecting to VDD ensures defined logic-high state and minimizes static power consumption.
Is MC14081BDT pin-compatible with CD4081B in TSSOP-14 package?
Yes - MC14081BDT is explicitly designated as a pin-for-pin replacement for CD4081B in TSSOP-14 (DT suffix) packaging. Pin assignments, electrical characteristics, and logic function match identically, enabling direct substitution in existing layouts. However, MC14081BDT adds triple diode input protection and extends max VDD from 15 V to 18 V - providing design margin not present in CD4081B.
What is the typical propagation delay of MC14081BDT at 10 V supply?
At VDD = 10 V and CL = 50 pF, the typical propagation delay (tPLH/tPHL) for MC14081BDT is 50 ns, with a maximum of 130 ns across temperature. This delay is derived from the datasheet formula tPLH/tPHL = (0.36 ns/pF) × CL + 47 ns, confirming suitability for <10 MHz synchronous logic and asynchronous control signaling in industrial interfaces.
Can MC14081BDT drive a standard 74LS00 input directly?
Yes - MC14081BDT can drive two low-power TTL loads (e.g., 74LS00) over its full −55 °C to +125 °C range, as confirmed in the "Capable of Driving…" specification. Its output sink current reaches 1.3 mA at VDD = 10 V (VOL = 0.5 V), exceeding the 0.4 mA required by 74LS inputs, and its VOH exceeds 9.95 V - ensuring valid TTL HIGH recognition without level-shifting circuitry.
MC14081BDT 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:
- -
MC14081BDT FAQ
1.How can I place an order for MC14081BDT through Aetrix?
Please submit a Request for Quotation (RFQ) for MC14081BDT 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 MC14081BDT reliable?
The price and inventory of MC14081BDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC14081BDT is usually 5 days.
3.What payment methods are accepted for MC14081BDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC14081BDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC14081BDT?
MC14081BDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC14081BDT 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 MC14081BDT?
For technical support, including MC14081BDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC14081BDT requirements.
6.How does Aetrix verify that MC14081BDT is sourced from the original manufacturer or authorized distributors?
All MC14081BDT 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 MC14081BDT meets industry standards.
7.What is the process for return or replacement of MC14081BDT?
All MC14081BDT units undergo pre-shipment inspection (PSI). If there is an issue with MC14081BDT, 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 MC14081BDT part is unused and in its original packaging.
Return procedure for MC14081BDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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