CD4077BPWR Equivalent & Substitute Parts

Part Overview

The CD4077BPWR is a XNOR (Exclusive NOR) logic IC featuring 4 channels with 2 inputs per channel, manufactured by Texas Instruments in the 4000B series. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design requirements and procurement planning. The CD4077BPWR operates across a wide supply voltage range of 3V to 18V and is housed in a 14-TSSOP surface mount package.

Substiute Parts

CD4077BPWR

Texas InstrumentsIn Stock: 1080CD4077BPWR Datasheet

Current PartRFQ

CD4077BPW

Texas InstrumentsIn Stock: 2445CD4077BPW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD4077BPWR is determined by strict equivalence across the following critical parameters:

• Logic function: XNOR (Exclusive NOR) with identical 4-channel, 2-input configuration
• Electrical specifications: Supply voltage range (3V ~ 18V), quiescent current (1 µA max), output current (3.4mA), and propagation delay (100ns @ 15V, 50pF)
• Package compatibility: 14-TSSOP surface mount form factor with identical physical dimensions
• Thermal and environmental ratings: Operating temperature range (-55°C ~ 125°C)
• Compliance standards: ROHS3 compliance and MSL Level 1

The CD4077BPW meets all substitution criteria as a direct equivalent, differing only in packaging format (tube versus tape and reel) and product status (active versus obsolete).

Parameter Comparison

Engineering Selection Recommendations

The CD4077BPW is the direct substitute for the CD4077BPWR. Both components share identical electrical and mechanical specifications, with the primary distinction being product status and packaging format. The CD4077BPW maintains active product status with Texas Instruments, ensuring continued availability and supply chain reliability. Both parts maintain ROHS3 compliance and MSL Level 1 certification, meeting environmental and moisture sensitivity requirements for standard manufacturing and storage conditions.

Frequently Asked Questions (FAQ)

Q: Can CD4077BPW be used as a direct replacement for CD4077BPWR in existing designs?

A: Yes. The CD4077BPW is electrically and mechanically identical to the CD4077BPWR. All electrical parameters, operating ranges, and package dimensions are equivalent. The substitution requires no circuit modifications or design changes.

Q: What is the difference between the tape and reel (BPWR) and tube (BPW) packaging formats?

A: Tape and reel packaging is optimized for automated assembly processes, while tube packaging is suitable for manual handling and smaller quantity orders. The components themselves are identical; the difference is in delivery and handling format only.

Q: Are there any compliance or certification differences between these parts?

A: No. Both CD4077BPWR and CD4077BPW carry identical ROHS3 compliance and MSL Level 1 ratings. No additional testing or qualification is required when substituting between these parts.

Q: Why is the CD4077BPWR listed as obsolete?

A: Obsolete status indicates that Texas Instruments has discontinued active production and support for this specific part number variant. The CD4077BPW remains in active production and serves as the current equivalent for new designs and procurement.

Q: Are there any thermal or environmental operating differences?

A: No. Both parts operate identically across the -55°C to 125°C temperature range with identical quiescent current, output current, and propagation delay specifications.