CD4011BCM NAND Gate IC Equivalent & Substitute Parts

Part Overview

The CD4011BCM is a 4-channel 2-input NAND gate logic IC manufactured by onsemi in 14-SOIC surface mount packaging. This device operates across a supply voltage range of 3V to 15V and is part of the 4000B CMOS logic series. The CD4011BCM is currently listed as obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Logic Type	NAND Gate
Number of Circuits	4
Number of Inputs	2
Voltage - Supply	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	-55°C ~ 125°C
Package / Case	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the CD4011BCM is determined by strict equivalence across the following critical parameters:

Logic configuration: 4-channel 2-input NAND gate
Package type: 14-SOIC surface mount
Supply voltage range: Minimum 3V to 15V operation
Input/output logic levels: Compatible threshold specifications
Operating temperature range: -55°C to 125°C
Quiescent current: 1 µA maximum
Propagation delay: Performance within acceptable limits for CMOS 4000B series

Substitute parts are grouped by manufacturer and product status. Parts with extended voltage ranges (3V ~ 18V) and enhanced output current specifications remain functionally compatible when the CD4011BCM operates within its specified 3V ~ 15V range. Input logic level variations in certain variants (such as MC14011UBDG and NLV14011UBDR2G) indicate different threshold specifications and require application-level verification for compatibility.

Parameter Comparison

Part Number	Manufacturer	Product Status	Voltage - Supply	Current - Output High, Low	Input Logic Level - Low	Input Logic Level - High	Max Propagation Delay @ 15V, 50pF	Packaging	RoHS Status
CD4011BCM	onsemi	Obsolete	3V ~ 15V	3.4mA, 3.4mA	1.5V ~ 4V	4.6V ~ 11V	70ns	14-SOIC	REACH Unaffected
MC14011BDG	onsemi	Active	3V ~ 18V	8.8mA, 8.8mA	1.5V ~ 4V	4.6V ~ 11V	80ns	14-SOIC (Tube)	ROHS3 Compliant
MC14011BDR2G	onsemi	Active	3V ~ 18V	8.8mA, 8.8mA	1.5V ~ 4V	4.6V ~ 11V	80ns	14-SOIC (Tape & Reel)	ROHS3 Compliant
MC14011UBDG	onsemi	Active	3V ~ 18V	4.6mA, 8.8mA	1V ~ 2.5V	4V ~ 12.5V	80ns	14-SOIC (Tube)	ROHS3 Compliant
MC14011UBDR2G	onsemi	Active	3V ~ 18V	4.6mA, 8.8mA	1V ~ 2.5V	4V ~ 12.5V	80ns	14-SOIC (Tape & Reel)	ROHS3 Compliant
NLV14011BDR2G	onsemi	Active	3V ~ 18V	8.8mA, 8.8mA	1.5V ~ 4V	4.6V ~ 11V	80ns	14-SOIC (Tape & Reel)	ROHS3 Compliant
NLV14011UBDR2G	onsemi	Active	3V ~ 18V	4.6mA, 8.8mA	1V ~ 2.5V	4V ~ 12.5V	80ns	14-SOIC (Tape & Reel)	ROHS3 Compliant
CD4011BM	Texas Instruments	Active	3V ~ 18V	3.4mA, 3.4mA	1.5V ~ 4V	4.6V ~ 11V	90ns	14-SOIC (Tube)	ROHS3 Compliant
CD4011BM96	Texas Instruments	Active	3V ~ 18V	3.4mA, 3.4mA	1.5V ~ 4V	4.6V ~ 11V	90ns	14-SOIC (Cut Tape & Digi-Reel)	ROHS3 Compliant
CD4011BME4	Texas Instruments	Discontinued at DiGi Electronics	3V ~ 18V	3.4mA, 3.4mA	1.5V ~ 4V	4.6V ~ 11V	90ns	14-SOIC (Tube)	ROHS3 Compliant
CD4011BMT	Texas Instruments	Discontinued at DiGi Electronics	3V ~ 18V	3.4mA, 3.4mA	1.5V ~ 4V	4.6V ~ 11V	90ns	14-SOIC (Tape & Reel)	ROHS3 Compliant

Engineering Selection Recommendations

For replacement of the obsolete CD4011BCM, the following active alternatives are recommended based on product status and compliance:

Primary Substitutes (onsemi, Active Status, ROHS3 Compliant):

MC14011BDR2G: Highest inventory availability (17,500 pcs), standard input/output logic levels, Tape & Reel packaging
MC14011BDG: Tube packaging alternative, standard input/output logic levels
NLV14011BDR2G: Low-voltage variant, standard input/output logic levels, Tape & Reel packaging

Secondary Substitutes (Texas Instruments, Active Status, ROHS3 Compliant):

CD4011BM96: Highest inventory availability among TI variants (138,753 pcs), Cut Tape & Digi-Reel packaging, matching output current specifications to original CD4011BCM
CD4011BM: Tube packaging, matching output current specifications to original CD4011BCM

Threshold-Variant Substitutes (onsemi, Active Status, ROHS3 Compliant):

MC14011UBDG and MC14011UBDR2G: Alternative input logic level thresholds (1V ~ 2.5V low, 4V ~ 12.5V high) require application verification
NLV14011UBDR2G: Low-voltage variant with alternative input logic level thresholds

Parts listed as discontinued at DiGi Electronics (CD4011BME4, CD4011BMT) may have limited availability and should be considered only when active alternatives are unavailable.

Frequently Asked Questions (FAQ)

Q: Can MC14011BDR2G directly replace CD4011BCM in all applications? A: MC14011BDR2G is functionally equivalent within the CD4011BCM operating range of 3V to 15V. The extended voltage range (3V ~ 18V) of MC14011BDR2G does not affect compatibility. Output current is higher (8.8mA vs 3.4mA), which is acceptable for CMOS logic applications. Propagation delay is slightly longer (80ns vs 70ns), which is within acceptable tolerance for most 4000B series applications.

Q: What is the difference between MC14011BDG and MC14011BDR2G? A: Both parts are electrically identical. The difference is packaging: MC14011BDG is supplied in Tube packaging, while MC14011BDR2G is supplied in Tape & Reel (TR) format. Selection depends on assembly process requirements and inventory management preferences.

Q: Are the MC14011UBDG and MC14011UBDR2G variants compatible with CD4011BCM? A: These variants have different input logic level thresholds (1V ~ 2.5V low, 4V ~ 12.5V high) compared to the CD4011BCM (1.5V ~ 4V low, 4.6V ~ 11V high). Compatibility depends on the specific input signal levels in the application. Verification against actual circuit operating conditions is required before substitution.

Q: Why is CD4011BM96 recommended despite higher propagation delay (90ns vs 70ns)? A: CD4011BM96 offers the highest inventory availability (138,753 pcs) and maintains the same output current specifications (3.4mA) as the original CD4011BCM. The 20ns additional propagation delay is acceptable for most digital logic applications operating at standard clock frequencies. Timing-critical applications should verify this specification against circuit requirements.

Q: What is the significance of ROHS3 compliance on substitute parts? A: ROHS3 compliance indicates adherence to Restriction of Hazardous Substances regulations. All active substitute parts listed are ROHS3 compliant, ensuring compatibility with modern manufacturing and environmental standards. The original CD4011BCM is listed as REACH Unaffected, which is also acceptable for most applications.

Q: Can Texas Instruments CD4011BM variants be used instead of onsemi alternatives? A: Yes. CD4011BM and CD4011BM96 are functionally equivalent to MC14011BDG and MC14011BDR2G. Selection between manufacturers depends on availability, supply chain preferences, and cost considerations. All active variants maintain the same logic configuration and package type.

Q: What packaging options are available for substitutes? A: Substitute parts are available in three packaging formats: Tube (standard for manual assembly), Tape & Reel (TR) for automated pick-and-place assembly, and Cut Tape & Digi-Reel for mixed-volume applications. Selection depends on production volume and assembly equipment capabilities.

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