CD4070BPW XOR Logic IC - Equivalent & Substitute Parts

Part Overview

The CD4070BPW is a 4-channel, 2-input XOR (Exclusive OR) logic integrated circuit manufactured by Texas Instruments, part of the 4000B CMOS logic series. This device performs exclusive OR operations across four independent channels in a 14-TSSOP surface mount package. The CD4070BPW is currently discontinued at DiGi Electronics, making identification of equivalent substitute parts essential for ongoing design support and production continuity. The CD4070BPWR provides direct functional equivalence with improved availability.

Substiute Parts

CD4070BPW

Texas InstrumentsIn Stock: 2640CD4070BPW Datasheet

Current PartRFQ

CD4070BPWR

Texas InstrumentsIn Stock: 27688CD4070BPWR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The CD4070BPWR qualifies as a direct substitute for the CD4070BPW based on the following criteria:

Electrical Parameters Match:

• Identical logic type (XOR, 4 channels, 2 inputs per channel)
• Identical supply voltage range (3V ~ 18V)
• Identical quiescent current specification (1 µA max)
• Identical output current ratings (3.4mA high and low)
• Identical input logic level thresholds
• Identical propagation delay characteristics (100ns @ 15V, 50pF)
• Identical operating temperature range (-55°C ~ 125°C)

Mechanical & Package Compatibility:

• Identical package type: 14-TSSOP
• Identical package dimensions (0.173", 4.40mm Width)
• Identical mounting type: Surface Mount

Compliance & Certification:

• Both ROHS3 Compliant
• Both MSL Level 1 (Unlimited)
• Both REACH Unaffected
• Both classified under ECCN EAR99

The only difference is packaging format: CD4070BPW is supplied in Tube packaging (discontinued), while CD4070BPWR is supplied in Tape & Reel (TR) format with active product status and significantly higher inventory availability (27,600 pcs vs. 2,606 pcs).

Parameter Comparison

Engineering Selection Recommendations

The CD4070BPWR is the appropriate selection for new designs and production continuity:

Product Status: The CD4070BPW is discontinued at DiGi Electronics, while the CD4070BPWR maintains active product status with full manufacturer support.

Compliance & Certifications: Both parts carry identical compliance certifications (ROHS3, MSL Level 1, REACH Unaffected, ECCN EAR99), ensuring regulatory equivalence across applications.

Availability & Supply Chain: The CD4070BPWR offers substantially higher inventory availability (27,600 pcs) compared to the CD4070BPW (2,606 pcs), providing superior supply chain reliability.

Functional Equivalence: All electrical and mechanical parameters are identical, ensuring direct pin-for-pin and functional compatibility in existing circuit designs.

Packaging Consideration: The transition from Tube to Tape & Reel packaging is standard in component supply chains and does not affect circuit performance or reliability. Tape & Reel format is the industry standard for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can CD4070BPWR replace CD4070BPW in existing designs?

A: Yes. The CD4070BPWR is a direct functional and pin-for-pin equivalent. All electrical parameters, operating ranges, and package dimensions are identical. The only difference is the packaging format (Tape & Reel vs. Tube), which does not affect circuit operation.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts share identical specifications for supply voltage (3V ~ 18V), quiescent current (1 µA max), output current (3.4mA), input logic levels, propagation delay (100ns @ 15V, 50pF), and operating temperature range (-55°C ~ 125°C).

Q: What is the significance of the packaging format difference?

A: CD4070BPW uses Tube packaging, while CD4070BPWR uses Tape & Reel (TR) format. Tape & Reel is the standard packaging for high-volume automated assembly. Both formats contain identical components; the difference is in handling and storage method. Tape & Reel format typically offers better availability and is preferred for production environments.

Q: Are both parts RoHS compliant?

A: Yes. Both CD4070BPW and CD4070BPWR are ROHS3 Compliant with MSL Level 1 (Unlimited moisture sensitivity rating), ensuring compliance with environmental and regulatory standards.

Q: Why is CD4070BPW discontinued while CD4070BPWR remains active?

A: Discontinuation typically reflects supply chain optimization and market demand. The CD4070BPWR in Tape & Reel format aligns with modern manufacturing practices and maintains active production status with full manufacturer support.

Q: Can I use CD4070BPWR in designs originally specified for CD4070BPW?

A: Yes. The CD4070BPWR is a direct substitute with identical electrical and mechanical specifications. No circuit modifications or re-qualification are required.