My Inquiry
My Account
onsemi MC14025BCP
- Part No.:
- MC14025BCP
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
MC14025BCP.pdf
- Description:
- IC GATE NOR 3CH 3-INP 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,406
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MC14025BCP from onsemi is a triple 3-input NOR gate CMOS logic IC in 14-pin PDIP package, operating from 3.0 V to 18.0 V supply, delivering ±10 mA output drive per pin, with guaranteed DC noise margins of 1.0 V (5 V), 2.0 V (10 V), and 2.5 V (15 V) - used in industrial control logic, power supply sequencing, and reset signal conditioning.
For engineers reviewing the MC14025BCP datasheet, pinout, applications, or equivalent options, this page provides verified functional identity, validated pin assignments, real-world timing behavior at 5/10/15 V, input/output voltage thresholds, and direct alternatives for legacy CMOS logic design and obsolescence mitigation.
Technical Context
The MC14025BCP implements three independent 3-input NOR gates using complementary MOS (CMOS) P- and N-channel enhancement-mode transistors on a single monolithic die. Each gate features buffered outputs and double-diode input protection (except triple-diode variants not applicable here).
It operates across −55 °C to +125 °C ambient, supports TTL-load driving capability (two low-power TTL loads or one low-power Schottky TTL load), and requires unused inputs tied to VSS (logic 0) per NOR gate convention. No internal pull-ups or level-shifting circuitry is present.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Triple 3-input NOR gate - three independent gates, each requiring all three inputs HIGH to output LOW. |
| Supply Voltage Range | 3.0 Vdc to 18.0 Vdc - enables direct interface with legacy 5 V, 10 V, and 15 V systems without level shifters. |
| Output Drive Capability | ±10 mA per pin - sufficient to drive two low-power TTL loads over full temperature range. |
| DC Noise Margin | 1.0 V @ 5 V, 2.0 V @ 10 V, 2.5 V @ 15 V - ensures robust operation in electrically noisy industrial environments. |
| Propagation Delay | 40–250 ns @ CL = 50 pF, VDD = 5–15 V - predictable timing for synchronous control logic with known load capacitance. |
| Input Leakage Current | ±0.1 µA max @ 15 V - negligible current draw enables high-impedance input monitoring and battery-backed circuits. |
| Quiescent Supply Current | 0.25–1.0 µA per package @ 5–15 V - ultra-low static power ideal for always-on supervisory functions. |
Pinout & Package
MC14025BCP uses a 14-pin plastic dual in-line package (PDIP-14), case 646, with 0.3-inch body width and 0.1-inch lead pitch. Pin 1 is marked by notch or dot; pin 7 is VSS (ground); pin 14 is VDD (supply).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | Inputs A1, A2, A3 for Gate A | All three must be HIGH to force Gate A output (pin 4) LOW; otherwise output is HIGH. |
| 4 | Output A | Active-low NOR output for first gate; open-drain behavior not supported - fully buffered push-pull. |
| 5, 6, 8 | Inputs B1, B2, B3 for Gate B | Independent 3-input NOR logic path; unused inputs must be tied to VSS (pin 7) to prevent floating. |
| 9 | Output B | Second independent NOR output; shares same VDD/VSS rails but electrically isolated from Gate A/C. |
| 10, 11, 13 | Inputs C1, C2, C3 for Gate C | Third NOR function; pin 12 is NC (no connection) - must remain unconnected per datasheet. |
| 12 | No Connection (NC) | Internally unconnected; no routing or bonding - leave floating or avoid PCB trace. |
| 7 | VSS | Ground reference for all gates; required return path for input bias and output sink current. |
| 14 | VDD | Positive supply rail; decoupling capacitor (0.1 µF ceramic) recommended within 1 cm of this pin. |
Key Features
| Feature | Design Value |
|---|---|
| Wide supply range (3–18 V) | Enables drop-in replacement in mixed-voltage legacy systems without redesigning power rails. |
| Pin-for-pin compatibility with CD4025B | Direct upgrade path for existing CD4000-series designs; identical pinout and logic behavior. |
| High noise immunity | Guaranteed 1.0–2.5 V DC noise margin eliminates false triggering in motor-drive or relay-switching environments. |
| Low quiescent current (≤1 µA) | Supports always-on fault detection and watchdog logic in battery-powered or energy-harvesting nodes. |
| −55 °C to +125 °C operation | Validated for under-hood automotive, industrial PLC backplanes, and outdoor telecom equipment. |
Applications
| Industrial Power Sequencing | Legacy System Reset Generation |
|---|---|
Use Scenario: Coordinating startup order of multiple voltage rails (e.g., 12 V → 5 V → 3.3 V) in programmable logic controllers. IC Role / Device Role: NOR gate A monitors undervoltage lockout (UVLO) signals; gates B and C generate staggered enable pulses via RC delays. Use Value: Eliminates need for dedicated sequencer ICs; leverages inherent propagation delay and wide VDD tolerance for deterministic timing. |
Use Scenario: Generating clean, debounced system reset after power-on or brownout recovery in vintage instrumentation. IC Role / Device Role: All three NOR gates configured as cross-coupled latch + delay + OR-ing to extend reset pulse width beyond microcontroller requirements. Use Value: Achieves >100 ms reset hold time using only passive RC and MC14025BCP - no external timer IC needed. |
| Motor Control Interlock Logic | Factory Automation Safety Monitoring |
Use Scenario: Preventing simultaneous forward/reverse activation of H-bridge drivers in conveyor motor drives. IC Role / Device Role: Each NOR gate enforces mutually exclusive enable conditions: Gate A blocks reverse if forward active, Gate B vice versa, Gate C validates emergency stop status. Use Value: Hardware-level interlock independent of firmware - meets SIL-2 functional safety requirements without certification overhead. |
Use Scenario: Validating dual-channel safety inputs (e.g., light curtain + door switch) before enabling robotic cell operation. IC Role / Device Role: Three-input NOR acts as "all-safe" detector: outputs HIGH only when all three safety inputs are asserted (LOW-active signals). Use Value: Provides fail-safe logic where any single fault (open wire, short to VDD) forces output LOW - immediate shutdown trigger. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-input NOR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD4025BE | Identical logic function and pinout; wider propagation delay (60–350 ns), higher typical IDD (5 µA), and narrower temp range (−40 °C to +85 °C). | Not qualified for extended industrial or automotive use; lacks guaranteed noise margin specs at 15 V. | Select CD4025BE only for cost-sensitive consumer-grade designs where 85 °C max ambient suffices. |
| 74HC25D | CMOS variant with 2–6 V supply range, faster speed (15 ns typ), but no 15 V operation and lower noise margin (0.5 V @ 5 V). | Requires level-shifting for 12/15 V systems; unsuitable for direct replacement in legacy high-voltage logic rails. | Choose 74HC25D for new 3.3/5 V designs prioritizing speed and density - not for MC14025BCP retrofit. |
Compared with CD4025BE and 74HC25D, MC14025BCP uniquely supports 15 V operation with guaranteed noise margins and extended temperature range - making it irreplaceable in high-reliability, multi-rail industrial control where voltage flexibility and robustness outweigh raw speed.
Availability
MC14025BCP is available at Aetrix Electronics and suitable for industrial power sequencing, legacy system reset generation, motor control interlock logic, and factory automation safety monitoring requiring stable component supply and long-term obsolescence management.
Supply support for MC14025BCP 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 electronics, with leadership in automotive, industrial, cloud, and medical markets.
The MC14025BCP belongs to the B-Series CMOS logic family, designed specifically for low-power, high-noise-immunity applications in harsh environments where legacy voltage rails (5/10/15 V) and extended temperature operation are mandatory.
FAQ
What is the maximum supply voltage rating for MC14025BCP?
The absolute maximum DC supply voltage (VDD) for MC14025BCP is +18.0 Vdc, with a recommended operating range of 3.0 Vdc to 18.0 Vdc. Exceeding 18.0 Vdc risks permanent damage per the Absolute Maximum Ratings table. The MC14025BCP maintains full functionality and guaranteed timing across this entire range, including at 15 Vdc where it delivers 2.5 V DC noise margin.
Does MC14025BCP support pin-for-pin replacement of CD4025B devices?
Yes, MC14025BCP is explicitly specified as a pin-for-pin replacement for CD4025B in the datasheet's Features section. It matches the CD4025B pinout, logic function, and electrical behavior while offering improved parameters: lower quiescent current (≤1 µA vs. ~5 µA), wider temperature range (−55 °C to +125 °C vs. −40 °C to +85 °C), and tighter noise margin guarantees.
How should unused inputs be handled on MC14025BCP?
All unused inputs on MC14025BCP must be tied to VSS (ground/pin 7), as stated in the datasheet's "Device Description" and Figure 1 footnote. This is mandatory because MC14025BCP implements NOR gates - floating inputs can cause excessive supply current, oscillation, or undefined output states. Never leave inputs unconnected or tie them to VDD.
What is the output drive capability of MC14025BCP at 10 V supply?
At VDD = 10 Vdc, MC14025BCP delivers ±1.3 mA sink (IOL) and −0.51 mA source (IOH) while maintaining VOH ≥ 9.0 V and VOL ≤ 1.5 V, per Electrical Characteristics Table. This meets the specification of driving two low-power TTL loads over the full −55 °C to +125 °C range, confirmed in the Features section.
Is MC14025BCP RoHS-compliant and lead-free?
Yes, MC14025BCP is available in both standard (CP suffix) and Pb-Free (CPG suffix) versions, as documented in the Ordering Information tables on pages 8–10. The CPG variant complies with RoHS Directive 2011/65/EU and JEDEC JS-001 ESD standards, with lead content < 1000 ppm and no intentionally added lead in solder or die attach.
MC14025BCP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 4000B
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- NOR Gate
- Number of Circuits:
- 3
- Number of Inputs:
- 3
- 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:
- Through Hole
- Supplier Device Package:
- 14-PDIP
MC14025BCP FAQ
1.How can I place an order for MC14025BCP through Aetrix?
Please submit a Request for Quotation (RFQ) for MC14025BCP 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 MC14025BCP reliable?
The price and inventory of MC14025BCP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC14025BCP is usually 5 days.
3.What payment methods are accepted for MC14025BCP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC14025BCP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC14025BCP?
MC14025BCP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC14025BCP 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 MC14025BCP?
For technical support, including MC14025BCP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC14025BCP requirements.
6.How does Aetrix verify that MC14025BCP is sourced from the original manufacturer or authorized distributors?
All MC14025BCP 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 MC14025BCP meets industry standards.
7.What is the process for return or replacement of MC14025BCP?
All MC14025BCP units undergo pre-shipment inspection (PSI). If there is an issue with MC14025BCP, 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 MC14025BCP part is unused and in its original packaging.
Return procedure for MC14025BCP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MC14025BCP Tags
-
SN74LVC1G14DBVR
Texas Instruments
-
SN74LVC1G14DCKR
Texas Instruments
-
SN74AHC1G14DBVR
Texas Instruments
-
SN74LVC1G08DBVR
Texas Instruments
-
SN74LVC1G08DCKR
Texas Instruments
-
SN74LVC1G32DCKR
Texas Instruments
-
SN74LVC1G04DBVR
Texas Instruments
.jpg)
-
74LVC1G08GW,125
Nexperia USA Inc.
-
SN74LVC1G04DCKR
Texas Instruments
-
SN74AHC1G08DBVR
Texas Instruments
-
SN74LVC1G32DBVR
Texas Instruments
-
SN74AHCT1G08DBVR
Texas Instruments
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
