CD4075BCN Equivalent & Substitute Parts

Part Overview

The CD4075BCN is a 3-channel OR gate logic integrated circuit manufactured by onsemi, housed in a 14-pin MDIP package. This device implements three independent 3-input OR gates on a single chip and operates across a wide supply voltage range of 3V to 15V. The CD4075BCN is classified as obsolete, making equivalent substitute parts necessary for ongoing design support, maintenance, and production continuity.

Substiute Parts

CD4075BCN

onsemiIn Stock: 843CD4075BCN Datasheet

Current PartRFQ

CD4075BE

Harris CorporationIn Stock: 2647CD4075BE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD4075BCN is determined by strict equivalence across the following critical parameters:

• Logic function: 3-channel, 3-input OR gate configuration
• Supply voltage range: Minimum 3V, maximum 15V or higher
• Package type: 14-pin DIP form factor with 0.300" (7.62mm) pitch
• Operating temperature range: -55°C to 125°C
• Through-hole mounting compatibility
• Series classification: 4000B CMOS logic family

The CD4075BE qualifies as a direct substitute based on matching all functional and physical parameters within the allowed electrical specifications.

Parameter Comparison

Engineering Selection Recommendations

The CD4075BE is a direct functional equivalent to the CD4075BCN. Both devices are obsolete products within the 4000B CMOS logic family and share identical logic configuration, pin assignments, and electrical characteristics within their respective supply voltage ranges.

The CD4075BE offers a marginally extended supply voltage range (3V ~ 18V versus 3V ~ 15V), providing additional operational headroom in applications requiring higher supply voltages. Propagation delay differs slightly (90ns versus 70ns at 15V with 50pF load), which may be relevant in timing-critical applications but remains within acceptable parameters for standard logic gate applications.

Both parts are RoHS non-compliant and carry identical ECCN and HTSUS classifications. Selection between these parts should be based on availability, cost, and specific application voltage requirements.

Frequently Asked Questions (FAQ)

Q: Can the CD4075BE replace the CD4075BCN in existing designs?

A: Yes. Both devices implement identical 3-channel, 3-input OR gate logic in 14-DIP packages with matching pin configurations. Electrical characteristics are equivalent within the CD4075BCN's 3V ~ 15V supply range.

Q: What is the difference in propagation delay between these parts?

A: The CD4075BCN specifies 70ns maximum propagation delay at 15V with 50pF load, while the CD4075BE specifies 90ns under identical conditions. For most logic applications, this 20ns difference is not functionally significant.

Q: Are there package compatibility concerns?

A: No. Both parts use identical 14-DIP (0.300", 7.62mm) through-hole packages with matching pin layouts, ensuring direct PCB compatibility.

Q: Why are both parts classified as obsolete?

A: Both the CD4075BCN and CD4075BE are legacy CMOS logic devices from the 4000B series. Modern designs typically employ more advanced logic families, though these parts remain available through inventory channels for maintenance and legacy system support.

Q: Does the extended voltage range of the CD4075BE affect compatibility?

A: No. The CD4075BE's 3V ~ 18V range encompasses the CD4075BCN's 3V ~ 15V range. Applications designed for the CD4075BCN operate identically with the CD4075BE within the original voltage specifications.