onsemi MC14071BCPG

Overview

MC14071BCPG 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 legacy system upgrades. It operates across 3.0–18 VDC supply, delivers ±10 mA output drive per pin, and features buffered outputs capable of driving two low-power TTL loads over −55°C to +125°C.

For engineers reviewing the MC14071BCPG datasheet, pinout, applications, or equivalent options, this device serves as a direct pin-for-pin replacement for CD4071B in wide-supply-voltage systems requiring robust noise margins, rail-to-rail logic thresholds, and extended temperature operation without redesign.

Technical Context

The MC14071BCPG implements four independent non-inverting OR gates using complementary MOS (CMOS) P- and N-channel enhancement-mode transistors in a monolithic structure. Each gate exhibits rail-to-rail output swing, with VOH ≥ 4.95 V and VOL ≤ 0.05 V at VDD = 5 V, and guaranteed DC noise margins of 1.0 V (5 V), 2.0 V (10 V), and 2.5 V (15 V).

Input protection includes double diode clamping per pin (except triple on NAND/AND variants), and unused inputs must be tied to VSS (for OR/NOR) or VDD (for AND/NAND) to prevent floating states. Quiescent current remains ≤1.0 µA per package at 25°C and ≤30 µA at 125°C, enabling ultra-low-static-power operation.

Key Specifications

Pinout & Package

MC14071BCPG is housed in a 14-pin SOIC-14 (Case 751A) package with Pb-free finish and JEDEC-standard footprint (8.55 × 3.90 mm body, 1.27 mm pitch). Pin 1 is index-marked; pin 7 is VSS (ground); pin 14 is VDD (supply).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad 2-input OR gate applications.

Compared with CD4071BE and 74HC32D, MC14071BCPG uniquely balances wide supply range (3–18 V), extended temperature capability (−55°C to +125°C), guaranteed noise margins, and AEC-Q100 readiness - making it the sole choice for ruggedized, multi-voltage, or automotive-qualified OR logic.

Availability

MC14071BCPG is available at Aetrix Electronics and suitable for industrial control logic, legacy system upgrades, automotive subsystem monitoring, and low-power remote sensor interfaces requiring stable component supply across long product lifecycles.

Supply support for MC14071BCPG 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 MC14071BCPG belongs to the B-Suffix Series CMOS Gates family, engineered for ultra-low-power, high-noise-immunity digital logic in harsh environments - particularly targeting industrial automation, automotive subsystems, and legacy system modernization.

FAQ

What logic function does MC14071BCPG implement?

MC14071BCPG implements four independent 2-input OR gates (A+B) in a single 14-pin SOIC package. Each gate performs Boolean OR with non-inverting output behavior, and all inputs and outputs are fully buffered. The device follows standard CMOS logic thresholds: VIH ≥ 3.5 V and VIL ≤ 1.5 V at VDD = 5 V, ensuring compatibility with TTL and other CMOS families.

Is MC14071BCPG pin-compatible with CD4071B?

Yes, MC14071BCPG is explicitly designed as a pin-for-pin replacement for CD4071B, sharing identical pin assignments, logic function, and electrical interface. This allows direct substitution in existing designs without PCB modification. However, MC14071BCPG extends the supply range to 18 V and supports operation down to −55°C - exceeding CD4071B's 15 V and −40°C limits.

What is the maximum output current per pin for MC14071BCPG?

The absolute maximum output current per pin for MC14071BCPG is ±10 mA, as specified in the Absolute Maximum Ratings table. Under normal operation at VDD = 5 V and TA = 25°C, typical sink current (IOL) is 0.64 mA and source current (IOH) is −0.64 mA at VOH = 4.6 V. Exceeding ±10 mA risks permanent damage and violates safe operating area limits.

How should unused inputs be handled on MC14071BCPG?

Unused inputs on MC14071BCPG must be tied to VSS (ground), as specified in the datasheet for OR and NOR gates. Leaving inputs floating can cause excessive supply current, erratic output behavior, or thermal overstress due to partial conduction in the CMOS input stage. Tying to VSS ensures predictable logic state and maintains quiescent current below 1 µA.

Does MC14071BCPG meet automotive qualification standards?

MC14071BCPG itself is not AEC-Q100 qualified; however, its NLV-prefix variant (NLV14071BDG) is AEC-Q100 qualified and PPAP capable. The base MC14071BCPG shares identical die and process technology, operates across −55°C to +125°C, and meets all electrical specifications required for automotive subsystem monitoring - but formal qualification applies only to the NLV part number.