CD4070BM XOR Logic IC Equivalent & Substitute Parts

Part Overview

The CD4070BM is a 4-channel, 2-input XOR (Exclusive OR) logic integrated circuit manufactured by Texas Instruments in the 4000B series. This surface mount device operates across a wide supply voltage range of 3V to 18V and is housed in a 14-SOIC package. The CD4070BM is currently discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and production requirements. Alternative sources and compatible logic ICs from other manufacturers provide functional continuity for applications requiring XOR gate functionality.

Key Parameters

Parameter	Value
Logic Type	XOR (Exclusive OR)
Number of Circuits	4
Number of Inputs	2
Voltage - Supply	3V ~ 18V
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 @ V, Max CL	100ns @ 15V, 50pF
Operating Temperature	-55°C ~ 125°C
Mounting Type	Surface Mount
Package / Case	14-SOIC (0.154", 3.90mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the CD4070BM is determined by strict adherence to the following electrical and mechanical parameters:

Critical Substitution Criteria:

Logic Type: XOR (Exclusive OR) with 4 channels and 2 inputs per channel
Package Type: 14-SOIC surface mount configuration
Voltage Supply Range: Minimum 3V to 18V compatibility
Operating Temperature Range: Support for -55°C to 125°C or equivalent industrial range
Quiescent Current: Maximum 1 µA (or lower)
Output Current Capability: 3.4mA minimum for both high and low states
Propagation Delay: 100ns or faster at 15V with 50pF load
RoHS3 Compliance and MSL Level 1 rating

Substitute parts are grouped into three categories based on their relationship to the CD4070BM:

Direct Manufacturer Equivalent: CD4070BM96 (Texas Instruments, Cut Tape packaging) and MC14070BDR2G (onsemi, Tape & Reel) meet all electrical specifications and package requirements with identical or superior performance characteristics.

Manufacturer Recommended Substitute: MC14070BDG (onsemi, Tube packaging) and HEF4070BT,653 (Nexperia, Tape & Reel) provide functional equivalence with minor parameter variations within acceptable engineering tolerances.

Parametric Equivalent: CD4030BM (Texas Instruments, Tube packaging) offers identical electrical performance and package configuration, with the same base functionality as the CD4070BM.

Parameter Comparison

Parameter	CD4070BM	CD4070BM96	MC14070BDR2G	MC14070BDG	HEF4070BT,653	CD4030BM
Manufacturer	Texas Instruments	Texas Instruments	onsemi	onsemi	Nexperia USA Inc.	Texas Instruments
Logic Type	XOR	XOR	XOR	XOR	XOR	XOR
Number of Circuits	4	4	4	4	4	4
Number of Inputs	2	2	2	2	2	2
Voltage - Supply	3V ~ 18V	3V ~ 18V	3V ~ 18V	3V ~ 18V	3V ~ 15V	3V ~ 18V
Current - Quiescent (Max)	1 µA	1 µA	1 µA	1 µA	4 µA	1 µA
Current - Output High, Low	3.4mA, 3.4mA	3.4mA, 3.4mA	8.8mA, 8.8mA	8.8mA, 8.8mA	3mA, 3mA	3.4mA, 3.4mA
Max Propagation Delay @ V, Max CL	100ns @ 15V, 50pF	100ns @ 15V, 50pF	110ns @ 15V, 50pF	110ns @ 15V, 50pF	55ns @ 15V, 50pF	100ns @ 15V, 50pF
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-40°C ~ 85°C	-55°C ~ 125°C
Package / Case	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC
Product Status	Discontinued	Active	Active	Active	Active	Discontinued
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

CD4070BM96 and MC14070BDR2G are the preferred substitutes due to active product status and full electrical parameter alignment with the CD4070BM. Both maintain identical supply voltage range (3V ~ 18V), quiescent current specifications (1 µA maximum), and operating temperature range (-55°C ~ 125°C). CD4070BM96 is available in Cut Tape and Digi-Reel packaging with 37,900 units in stock. MC14070BDR2G is supplied by onsemi in Tape & Reel format with 65,200 units in stock. Both are ROHS3 compliant with MSL Level 1 rating.

Secondary Substitutes (Minor Parameter Variations):

MC14070BDG and HEF4070BT,653 provide functional equivalence with acceptable parameter deviations. MC14070BDG matches all electrical specifications of the CD4070BM with identical supply voltage and temperature range, available in Tube packaging with 3,606 units in stock. HEF4070BT,653 from Nexperia operates within a reduced temperature range (-40°C ~ 85°C) and maximum supply voltage of 15V, with faster propagation delay (55ns). This part is suitable for applications not requiring the full -55°C to 125°C temperature range. Both maintain ROHS3 compliance and MSL Level 1 rating.

Parametric Equivalent:

CD4030BM offers identical electrical performance and 14-SOIC packaging but carries discontinued product status. This part is suitable only for legacy system maintenance where existing inventory is available.

All substitute parts maintain ROHS3 compliance, MSL Level 1 moisture sensitivity rating, and EAR99 export classification consistent with the CD4070BM.

Frequently Asked Questions (FAQ)

Q: Can CD4070BM96 be used as a direct replacement for CD4070BM?

A: Yes. CD4070BM96 is a direct equivalent from Texas Instruments with identical electrical specifications, supply voltage range (3V ~ 18V), quiescent current (1 µA maximum), output current capability (3.4mA), propagation delay (100ns @ 15V, 50pF), and operating temperature range (-55°C ~ 125°C). The primary difference is packaging format: CD4070BM96 is supplied in Cut Tape and Digi-Reel, while CD4070BM is in Tube. Both use the 14-SOIC package configuration.

Q: What is the difference between MC14070BDR2G and MC14070BDG?

A: Both are onsemi XOR logic ICs with identical electrical specifications. The difference is packaging: MC14070BDR2G is supplied in Tape & Reel format, while MC14070BDG is supplied in Tube format. Electrical performance, supply voltage range (3V ~ 18V), quiescent current (1 µA), output current (8.8mA), and operating temperature (-55°C ~ 125°C) are identical between both variants.

Q: Why does HEF4070BT,653 have different operating temperature and voltage specifications?

A: HEF4070BT,653 from Nexperia operates within a reduced temperature range (-40°C ~ 85°C) and maximum supply voltage of 15V compared to the CD4070BM specification of -55°C ~ 125°C and 3V ~ 18V. This part is suitable for commercial and industrial applications that do not require extended temperature operation below -40°C or supply voltages above 15V. The faster propagation delay (55ns) may provide performance benefits in timing-critical applications.

Q: Is the 14-SOIC package compatible across all substitute parts?

A: Yes. All substitute parts use the 14-SOIC (0.154", 3.90mm Width) surface mount package configuration, ensuring mechanical and electrical compatibility with existing PCB layouts designed for the CD4070BM.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (CD4070BM96, MC14070BDR2G, MC14070BDG, HEF4070BT,653, and CD4030BM) are ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating, matching the CD4070BM compliance status.

Q: What is the inventory status of active substitutes?

A: CD4070BM96 has 37,900 units in stock (Texas Instruments, Cut Tape & Digi-Reel). MC14070BDR2G has 65,200 units in stock (onsemi, Tape & Reel). MC14070BDG has 3,606 units in stock (onsemi, Tube). HEF4070BT,653 has 2,000 units in stock (Nexperia, Tape & Reel). All are active products with ongoing availability.

Q: Can CD4030BM replace CD4070BM in new designs?

A: CD4030BM provides identical electrical performance and 14-SOIC packaging but is discontinued at DiGi Electronics. This part is suitable only for legacy system maintenance or where existing inventory is available. For new designs, use active substitutes: CD4070BM96, MC14070BDR2G, MC14070BDG, or HEF4070BT,653.

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