onsemi MC14001BFELG

Overview

MC14001BFELG from onsemi is a quad 2-input NOR gate CMOS logic IC designed for low-power, high-noise-immunity digital control functions in industrial and automotive systems. It operates across a 3.0–18.0 VDC supply range, 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. Its SOEIAJ-14 (JEDEC MS-012) package supports space-constrained PCB layouts requiring Pb-free compliance.

For engineers reviewing the MC14001BFELG datasheet, pinout, applications, or equivalent options, this page provides verified functional identity, validated pin-level circuit roles, confirmed operating margins at 5/10/15 VDD, real-world noise immunity values (≥1.0 V at 5 V), and direct alternatives with documented differences in voltage tolerance and automotive qualification.

Technical Context

The MC14001BFELG 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 exhibits rail-to-rail output swing (VOH ≥ VDD − 0.05 V, VOL ≤ 0.05 V at 5 V), input thresholds scaled with VDD (VIH = 3.5 V min at 5 V, VIL = 1.5 V max), and guaranteed DC noise margins of 1.0 V (5 V), 2.0 V (10 V), and 2.5 V (15 V).

It supports dynamic operation up to 3 MHz typical (CL = 50 pF, VDD = 15 V), with propagation delays of 40 ns max (tPLH/tPHL at 15 V), rise/fall times of 40 ns max, and quiescent current as low as 0.5 μA per package at 25°C. Unused inputs must be tied to VSS (NOR logic requirement), and all inputs include double diode protection.

Key Specifications

Pinout & Package

MC14001BFELG uses the SOEIAJ-14 (JEDEC MS-012) surface-mount package - a 14-pin narrow-body small-outline IC with 1.27 mm pitch, 8.65 mm × 3.90 mm footprint, and Pb-free finish. 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 NOR gate applications.

Compared with CD4001BE, MC14001BFELG offers 10× lower quiescent current and automotive-grade reliability; compared with MC14001BDTR2G, it provides superior thermal performance in convection-cooled industrial assemblies due to larger SOEIAJ body and copper leadframe.

Availability

MC14001BFELG is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, programmable logic interfaces, and legacy system glue logic requiring stable component supply across long production lifecycles.

Supply support for MC14001BFELG 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, analog, sensing, and logic solutions for automotive, industrial, and cloud infrastructure markets.

The MC14001BFELG belongs to the B-Suffix Series CMOS Gates product line - engineered for ultra-low static power, high noise immunity, and broad supply voltage operation in harsh-environment digital control applications.

FAQ

What logic function does the MC14001BFELG implement?

The MC14001BFELG implements four independent 2-input NOR gates in a single SOEIAJ-14 package. Each gate outputs LOW only when both inputs are HIGH; otherwise, it outputs HIGH. This matches the truth table of standard NOR logic and is functionally identical to CD4001B and other industry-standard quad NOR devices.

Does MC14001BFELG support 3.3 V logic systems?

Yes, MC14001BFELG operates down to 3.0 VDC supply voltage and guarantees correct logic levels at that rail: VIH ≥ 1.5 V and VIL ≤ 1.5 V, with VOH ≥ 2.95 V and VOL ≤ 0.05 V. However, output drive strength is reduced at 3.3 V (IOL ≈ 0.36 mA), so verify load compatibility in low-voltage designs.

What is the maximum operating frequency of MC14001BFELG?

MC14001BFELG has no specified maximum clock frequency, as it is a combinational logic device. Its propagation delay is 40 ns maximum at VDD = 15 V and CL = 50 pF, supporting reliable operation up to approximately 3 MHz in typical loaded conditions. For higher-speed applications, ensure trace length and capacitive loading remain within datasheet limits.

How should unused inputs on MC14001BFELG be handled?

Unused inputs on MC14001BFELG must be tied to VSS (ground), because it is a NOR gate - floating inputs cause unpredictable output states and increased power consumption. This is explicitly required in the datasheet and differs from NAND or AND gate handling, which require tying unused inputs to VDD.

Is MC14001BFELG qualified for automotive applications?

MC14001BFELG itself is not AEC-Q100 qualified; however, its NLV-prefix variant (NLV14001BFELG) is automotive-qualified and PPAP-capable. The MC14001BFELG shares identical electrical specifications and packaging but lacks the controlled manufacturing site and change documentation required for automotive release.