CD4029BCN Equivalent & Substitute Parts

Part Overview

The CD4029BCN is a 4-bit binary counter IC manufactured by onsemi, designed for counting applications requiring up/down direction control with asynchronous reset capability. This device operates across a wide supply voltage range (3V to 15V) and supports count rates up to 9 MHz with positive edge triggering. The CD4029BCN is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

CD4029BCN

onsemiIn Stock: 2205CD4029BCN Datasheet

Current PartRFQ

CD4029BE

Texas InstrumentsIn Stock: 1404CD4029BE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD4029BCN is determined by strict equivalence across the following critical parameters:

• Logic Function: Binary counter with decade capability, 4-bit configuration, 1 element
• Control Characteristics: Asynchronous reset, synchronous timing, positive edge trigger
• Electrical Performance: Count rate capability, supply voltage range, operating temperature range
• Physical Form Factor: 16-DIP package with 0.300" (7.62mm) pitch, through-hole mounting
• Base Product Number: CD4029 series designation

The CD4029BE from Texas Instruments meets all functional and physical requirements for direct substitution. Both devices share identical logic architecture, pin configuration, and package specifications within the 4000B CMOS logic family.

Parameter Comparison

Engineering Selection Recommendations

The CD4029BE from Texas Instruments is a direct functional equivalent to the CD4029BCN. The substitute device provides superior specifications in two areas: maximum count rate (11 MHz versus 9 MHz) and maximum supply voltage (18V versus 15V). These enhanced ratings ensure compatibility with the original design while providing additional operational margin.

The CD4029BE carries active product status with ROHS3 compliance certification, supporting long-term design sustainability and regulatory alignment. Both devices maintain identical pin configuration, logic behavior, and package form factor, enabling direct socket replacement without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can the CD4029BE replace the CD4029BCN in existing designs?

A: Yes. The CD4029BE is functionally equivalent across all critical parameters including logic type, bit configuration, control characteristics, and package specifications. The substitute device operates within the original design envelope while offering enhanced performance margins.

Q: What are the key differences between these devices?

A: The CD4029BE provides higher maximum count rate (11 MHz versus 9 MHz) and extended maximum supply voltage (18V versus 15V). Both devices share identical logic architecture, pin assignments, and operating temperature range (-55°C to 125°C).

Q: Are there any compatibility concerns with package or pinout?

A: No. Both devices use identical 16-DIP (0.300", 7.62mm) through-hole packaging with matching pin configurations. Direct socket substitution is possible without PCB modification.

Q: What is the significance of the CD4029 base product number?

A: The CD4029 designation identifies the core logic function and architecture within the 4000B CMOS logic family. Devices sharing this base number maintain functional equivalence across manufacturers, provided all electrical and physical parameters align.

Q: Why is the CD4029BCN listed as obsolete?

A: Obsolete status indicates the onsemi version is no longer in active production. The CD4029BE from Texas Instruments remains in active production, providing design continuity and supply availability for applications requiring 4-bit binary counter functionality.