CD4023BCN Equivalent & Substitute Parts

Part Overview

The CD4023BCN is a NAND Gate IC featuring 3 channels with 3 inputs per channel, packaged in a 14-MDIP configuration. Manufactured by onsemi, this component operates across a supply voltage range of 3V to 15V and is designed for digital logic applications requiring NAND gate functionality. The product is classified as obsolete, making identification of compatible substitute parts essential for system maintenance, repair, and legacy design support.

Substiute Parts

CD4023BCN

onsemiIn Stock: 6057CD4023BCN Datasheet

Current PartRFQ

CD4023BE

Harris CorporationIn Stock: 2953CD4023BE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD4023BCN is determined by strict equivalence across the following critical parameters:

Functional Equivalence: Logic type (NAND Gate), number of circuits (3), and number of inputs per circuit (3) must remain identical.

Electrical Compatibility: Supply voltage range, quiescent current, output current specifications, input logic levels, and propagation delay characteristics must support the original operating conditions.

Physical Compatibility: Mounting type (Through Hole) and package footprint (14-DIP, 0.300" spacing) must match to ensure direct board-level substitution without layout modifications.

Series Alignment: Components must belong to the 4000B logic series to maintain functional and electrical consistency.

The CD4023BE qualifies as a direct substitute based on these criteria, with all functional and electrical parameters meeting or exceeding the requirements of the CD4023BCN.

Parameter Comparison

Engineering Selection Recommendations

Both the CD4023BCN and CD4023BE are classified as obsolete products. Selection between these components should be based on availability and compliance requirements specific to the application.

The CD4023BE offers an extended supply voltage range (3V ~ 18V) compared to the CD4023BCN (3V ~ 15V), providing additional operational margin in systems with variable power supply conditions. The propagation delay specification of the CD4023BE (90ns @ 15V, 50pF) is slightly higher than the CD4023BCN (70ns @ 15V, 50pF), which may be relevant for timing-critical applications but remains within the 4000B series performance envelope.

The CD4023BE is noted as RoHS non-compliant, whereas the CD4023BCN carries REACH Unaffected status. Applications subject to RoHS or REACH regulatory requirements should verify compliance implications before selection.

Both components share identical electrical characteristics for quiescent current, output current, input logic levels, and operating temperature range, ensuring functional equivalence in standard digital logic applications.

Frequently Asked Questions (FAQ)

Q: Can the CD4023BE directly replace the CD4023BCN without PCB modifications?

A: Yes. Both components use identical 14-DIP (0.300", 7.62mm) through-hole packaging and share the same pinout. Direct substitution on the PCB is possible without layout changes.

Q: What is the primary difference between these two parts?

A: The CD4023BE supports an extended supply voltage range (3V ~ 18V versus 3V ~ 15V) and has a slightly higher maximum propagation delay (90ns versus 70ns at 15V, 50pF). Both differences are within acceptable tolerances for standard NAND gate applications.

Q: Are there any compliance considerations when substituting these parts?

A: The CD4023BE is RoHS non-compliant, while the CD4023BCN is REACH Unaffected. Applications with regulatory compliance requirements should verify that the selected substitute meets applicable standards.

Q: Why are both parts classified as obsolete?

A: Both the CD4023BCN and CD4023BE are legacy components from the 4000B CMOS logic series. Modern designs typically use more advanced logic families, though these parts remain available for legacy system support and repair.

Q: Is the propagation delay difference between these parts significant?

A: The 20ns difference (70ns versus 90ns) is generally not significant for standard digital logic applications. However, in timing-critical designs operating near maximum frequency specifications, this difference should be evaluated against system requirements.

Q: Can these parts be used interchangeably in new designs?

A: While electrically compatible, both parts are obsolete. New designs should consider modern logic families. For legacy system maintenance or repair, these parts are suitable substitutes for each other.