CD4063BMT Equivalent & Substitute Parts

Part Overview

The CD4063BMT is a 4-bit magnitude comparator logic IC manufactured by Texas Instruments in the 4000B series. It performs active-high output comparisons with three output functions: A<B, A=B, and A>B. The device operates across a wide supply voltage range of 3V to 18V and is housed in a 16-SOIC surface-mount package.

The CD4063BMT carries a Last Time Buy product status, indicating that Texas Instruments has discontinued this part number. This status necessitates identification of equivalent substitute components to maintain design continuity and ensure long-term component availability for production and maintenance applications.

Substiute Parts

CD4063BMT

Texas InstrumentsIn Stock: 2046CD4063BMT Datasheet

Current PartRFQ

CD4063BM96

Texas InstrumentsIn Stock: 2237CD4063BM96 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD4063BMT is determined by strict equivalence across the following critical parameters:

• Functional Type: 4-bit magnitude comparator with identical output functions (A<B, A=B, A>B)
• Output Logic Level: Active High configuration
• Electrical Specifications: Supply voltage range (3V ~ 18V), output current (4.2mA), propagation delay (350ns @ 15V, 50pF), and quiescent current (100 µA)
• Package Specification: 16-SOIC surface-mount package with identical physical dimensions (0.154", 3.90mm Width)
• Operating Temperature Range: -55°C ~ 125°C
• Compliance Standards: ROHS3 Compliant, REACH Unaffected

The CD4063BM96 meets all these criteria and is classified as the manufacturer-recommended substitute. Both parts share the same base product number (CD4063) and series designation (4000B), confirming functional and electrical equivalence.

Parameter Comparison

Engineering Selection Recommendations

The CD4063BM96 is the manufacturer-recommended substitute for the CD4063BMT. Both components are manufactured by Texas Instruments and maintain identical electrical and functional specifications across all critical parameters.

The primary distinction between these parts is product status and packaging format. The CD4063BMT is designated Last Time Buy, indicating end-of-life status. The CD4063BM96 maintains Active product status, ensuring continued availability and long-term supply chain reliability.

Both parts satisfy ROHS3 compliance and REACH unaffected requirements, making them suitable for applications subject to environmental and regulatory standards. The packaging difference—Tape & Reel (TR) for the main part versus Cut Tape (CT) & Digi-Reel® for the substitute—does not affect electrical performance or PCB assembly compatibility, as both are surface-mount 16-SOIC packages with identical physical dimensions.

Frequently Asked Questions (FAQ)

Q: Can the CD4063BM96 be used as a direct replacement for the CD4063BMT?

A: Yes. The CD4063BM96 is electrically and functionally equivalent to the CD4063BMT. All electrical specifications, output functions, operating temperature range, and package dimensions are identical. The substitute is suitable for direct PCB assembly replacement without design modification.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® packaging?

A: Both packaging formats contain the same 16-SOIC component. Tape & Reel is supplied on continuous carrier tape for automated pick-and-place assembly. Cut Tape & Digi-Reel® provides the component on cut tape segments or Digi-Reel® format. The packaging format does not affect component performance or PCB compatibility.

Q: Why is the CD4063BMT marked as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments has discontinued this part number. Existing inventory may be available for a limited period, but long-term supply cannot be guaranteed. The CD4063BM96 is recommended for new designs and ongoing production to ensure component availability.

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

A: No. Both the CD4063BMT and CD4063BM96 are ROHS3 Compliant and REACH Unaffected. They meet identical environmental and regulatory standards.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is based on functional type (4-bit magnitude comparator), output configuration (Active High), output functions (A<B, A=B, A>B), electrical specifications (supply voltage, output current, propagation delay, quiescent current), package type (16-SOIC), operating temperature range (-55°C ~ 125°C), and compliance certifications (ROHS3, REACH).