CD4028BCN Equivalent & Substitute Parts

Part Overview

The CD4028BCN is a 1 x 4:10 decoder logic integrated circuit manufactured by onsemi in a 16-DIP package. This component decodes a 4-bit binary input into one of ten decoded outputs, making it suitable for address decoding and selection applications in digital systems.

The CD4028BCN is classified as obsolete. Locating equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this decoder.

Substiute Parts

CD4028BCN

onsemiIn Stock: 2390CD4028BCN Datasheet

Current PartRFQ

CD4028BE

Texas InstrumentsIn Stock: 5097CD4028BE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD4028BCN is determined by the following critical parameters:

• Decoder Circuit Configuration: Must be 1 x 4:10 to maintain functional equivalence
• Package and Pinout: Must be 16-DIP (0.300", 7.62mm) for direct board-level compatibility
• Mounting Technology: Must be Through Hole to match existing PCB design
• Voltage Supply Range: Must accommodate the required supply voltage window
• Operating Temperature Range: Must support the thermal operating envelope
• Series Classification: 4000B series compatibility ensures logic family consistency

The CD4028BE from Texas Instruments meets all substitution criteria as a direct equivalent within the 4000B logic family.

Parameter Comparison

Engineering Selection Recommendations

The CD4028BE is a qualified substitute for the CD4028BCN based on the following factors:

• Functional Equivalence: Both devices implement identical 1 x 4:10 decoder logic with matching pinout and package geometry
• Thermal Compatibility: Both support the full -55°C to 125°C operating temperature range
• Supply Voltage: The CD4028BE supports an extended voltage range (3V ~ 18V) that fully encompasses the CD4028BCN requirement (3V ~ 15V)
• Product Status: The CD4028BE is active and in production, ensuring long-term availability and supply chain stability
• Compliance: The CD4028BE is RoHS3 compliant, providing environmental and regulatory advantages over the obsolete CD4028BCN

Frequently Asked Questions (FAQ)

Q: Can the CD4028BE be used as a direct replacement for the CD4028BCN?

A: Yes. Both devices share identical decoder configuration (1 x 4:10), package type (16-DIP), pinout, and operating temperature range. The CD4028BE is a direct functional equivalent.

Q: Are there any electrical differences between these parts?

A: The CD4028BE supports a wider supply voltage range (3V ~ 18V versus 3V ~ 15V) and provides higher output current capability (6.8mA high versus 3mA high). These differences are advantageous and do not prevent substitution.

Q: Will the CD4028BE work in existing PCB designs for the CD4028BCN?

A: Yes. The 16-DIP package dimensions and pinout are identical, enabling direct board-level substitution without PCB modifications.

Q: What is the primary reason to substitute the CD4028BCN?

A: The CD4028BCN is obsolete. The CD4028BE is an active product from Texas Instruments, ensuring reliable long-term availability and supply chain continuity.

Q: Are there any compliance or environmental considerations?

A: The CD4028BE is RoHS3 compliant, whereas the CD4028BCN status is not specified. For applications requiring environmental compliance documentation, the CD4028BE is the preferred choice.