CD4001BCM NOR Gate IC Equivalent & Substitute Parts

Part Overview

The CD4001BCM is a 4-channel NOR gate logic IC manufactured by onsemi in 14-SOIC surface mount packaging. This device operates across a wide supply voltage range of 3V to 15V and is designed for general-purpose digital logic applications. The CD4001BCM is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. Alternative parts maintain functional equivalence while offering improved availability and active product status.

Key Parameters

Parameter	CD4001BCM
Logic Type	NOR Gate
Number of Circuits	4
Number of Inputs	2
Voltage Supply Range	3V ~ 15V
Current - Quiescent (Max)	1 µA
Current - Output High, Low	3.4mA, 3.4mA
Input Logic Level - Low	1.5V ~ 4V
Input Logic Level - High	4.6V ~ 11V
Max Propagation Delay @ 15V, 50pF	70ns
Operating Temperature Range	-55°C ~ 125°C
Package / Case	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the CD4001BCM is determined by strict electrical and mechanical compatibility across the following parameters:

Critical Substitution Criteria:

Logic type must be NOR Gate with 4 channels and 2 inputs per channel
Package must be 14-SOIC surface mount configuration
Supply voltage range must encompass or exceed 3V to 15V minimum
Operating temperature range must cover -55°C to 125°C
Quiescent current specification of 1 µA maximum
Input and output logic levels must be compatible with the original specification

Substitute Parts Identified:

Group 1 - onsemi Active Alternatives (MC14001 Series): MC14001BDG, MC14001BDR2G, MC14001UBDG, MC14001UBDR2G - These parts maintain full electrical compatibility with extended supply voltage range (3V ~ 18V) and active product status. Output current specifications vary but remain within acceptable substitution parameters.

Group 2 - onsemi NLV Series (Low Voltage Variants): NLV14001BDG, NLV14001BDR2G, NLV14001UBDR2G - These parts provide equivalent functionality with active or standard product status. Supply voltage range extends to 18V, supporting broader application requirements.

Group 3 - Cross-Manufacturer Alternatives: CD4001BM (Texas Instruments), CD4001BM96 (Harris Corporation) - These maintain identical base part number designation with full electrical equivalence and active product status.

Group 4 - Alternative Manufacturer: BU4001BF-E2 (Rohm Semiconductor) - Provides NOR gate functionality in 14-SOP package with faster propagation delay (40ns) but narrower operating temperature range (-40°C ~ 85°C) and higher quiescent current (4 µA).

Parameter Comparison

Part Number	Manufacturer	Voltage Supply	Quiescent Current (Max)	Output Current High/Low	Propagation Delay @ 15V	Operating Temp	Package	Product Status
CD4001BCM	onsemi	3V ~ 15V	1 µA	3.4mA / 3.4mA	70ns	-55°C ~ 125°C	14-SOIC	Obsolete
MC14001BDG	onsemi	3V ~ 18V	1 µA	8.8mA / 8.8mA	80ns	-55°C ~ 125°C	14-SOIC	Active
MC14001BDR2G	onsemi	3V ~ 18V	1 µA	8.8mA / 8.8mA	80ns	-55°C ~ 125°C	14-SOIC	Active
MC14001UBDG	onsemi	3V ~ 18V	1 µA	4.6mA / 8.8mA	80ns	-55°C ~ 125°C	14-SOIC	Active
MC14001UBDR2G	onsemi	3V ~ 18V	1 µA	4.6mA / 8.8mA	80ns	-55°C ~ 125°C	14-SOIC	Active
NLV14001BDG	onsemi	3V ~ 18V	1 µA	8.8mA / 8.8mA	80ns	-55°C ~ 125°C	14-SOIC	Obsolete
NLV14001BDR2G	onsemi	3V ~ 18V	1 µA	8.8mA / 8.8mA	80ns	-55°C ~ 125°C	14-SOIC	Active
NLV14001UBDR2G	onsemi	3V ~ 18V	1 µA	4.6mA / 8.8mA	80ns	-55°C ~ 125°C	14-SOIC	Active
CD4001BM	Texas Instruments	3V ~ 18V	1 µA	3.4mA / 3.4mA	90ns	-55°C ~ 125°C	14-SOIC	Active
CD4001BM96	Harris Corporation	3V ~ 18V	1 µA	3.4mA / 3.4mA	90ns	-55°C ~ 125°C	14-SOIC	Active
BU4001BF-E2	Rohm Semiconductor	3V ~ 16V	4 µA	1.2mA / 3mA	40ns	-40°C ~ 85°C	14-SOP	Not For New Designs

Engineering Selection Recommendations

Primary Substitutes (Recommended for New Designs):

MC14001BDG and MC14001BDR2G are the preferred substitutes. Both are manufactured by onsemi with active product status, maintain full electrical compatibility within the CD4001BCM operating envelope, and offer extended supply voltage range to 18V. These parts are available in high inventory quantities and carry ROHS3 compliance certification.

Secondary Substitutes (Functionally Equivalent):

CD4001BM (Texas Instruments) and CD4001BM96 (Harris Corporation) provide direct functional equivalence with identical base part number designation. Both maintain active product status and full temperature range compatibility. These alternatives are suitable when onsemi sourcing is constrained.

Conditional Substitutes (Application-Dependent):

MC14001UBDG, MC14001UBDR2G, NLV14001UBDR2G - These variants feature asymmetric output current specifications (4.6mA high, 8.8mA low) and modified input logic levels (1V ~ 2.5V low, 4V ~ 12.5V high). Selection requires verification that application circuits tolerate these parameter variations.

Not Recommended for Temperature-Critical Applications:

BU4001BF-E2 operates within a narrower temperature range (-40°C ~ 85°C) compared to the CD4001BCM specification (-55°C ~ 125°C). This part is classified as "Not For New Designs" and carries higher quiescent current (4 µA). Use only when package form factor (14-SOP vs 14-SOIC) is a specific design requirement and temperature constraints are acceptable.

Frequently Asked Questions (FAQ)

Q: Can MC14001BDG directly replace CD4001BCM in existing designs?

A: Yes. MC14001BDG maintains full electrical compatibility across all critical parameters: 4-channel NOR gate configuration, 14-SOIC package, 1 µA quiescent current, and -55°C to 125°C operating range. The extended supply voltage range (3V ~ 18V) provides additional design margin. No circuit modifications are required.

Q: What is the difference between MC14001BDG and MC14001BDR2G?

A: Both parts are electrically identical. The difference is packaging format: MC14001BDG is supplied in Tube packaging, while MC14001BDR2G is supplied in Tape & Reel (TR) format. Selection depends on assembly process requirements and volume handling procedures.

Q: Why is BU4001BF-E2 listed as a substitute if it has different specifications?

A: BU4001BF-E2 provides NOR gate functionality but operates within narrower constraints: reduced temperature range (-40°C ~ 85°C), higher quiescent current (4 µA), and different package form (14-SOP). It is included as a cross-manufacturer alternative only for applications where these parameter variations are acceptable and the specific package form is required.

Q: Are there differences between onsemi MC14001 and NLV14001 series?

A: Both series provide equivalent NOR gate functionality in 14-SOIC packaging. NLV14001 variants are designated for low-voltage applications but maintain the same supply voltage range (3V ~ 18V) and operating temperature (-55°C ~ 125°C). Selection between series depends on availability and specific design requirements; both are functionally interchangeable.

Q: What does the "UB" designation in part numbers like MC14001UBDG indicate?

A: The "UB" suffix indicates modified input logic level thresholds (1V ~ 2.5V for low, 4V ~ 12.5V for high) compared to standard variants (1.5V ~ 4V for low, 4.6V ~ 11V for high). Output current characteristics also differ (4.6mA high, 8.8mA low). These variants are functionally equivalent but require circuit-level verification for compatibility.

Q: Is RoHS compliance a factor in selecting substitutes?

A: Yes. MC14001BDG, MC14001BDR2G, MC14001UBDG, MC14001UBDR2G, NLV14001BDG, NLV14001BDR2G, NLV14001UBDR2G, CD4001BM, CD4001BM96, and BU4001BF-E2 all carry ROHS3 compliance certification. The original CD4001BCM does not specify RoHS status. For applications requiring RoHS compliance, any of the listed substitutes are acceptable.

Q: Can I use CD4001BM96 if CD4001BM is unavailable?

A: Yes. Both parts are manufactured under the CD4001 base designation with identical electrical specifications. CD4001BM96 is manufactured by Harris Corporation while CD4001BM is manufactured by Texas Instruments. Both maintain active product status and full compatibility with the CD4001BCM specification.

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