CD40175BCN Equivalent & Substitute Parts

Part Overview

The CD40175BCN is a D-Type flip-flop logic integrated circuit manufactured by onsemi, designed for digital signal processing and control applications. This component features a single 4-bit positive edge-triggered flip-flop with complementary outputs and master reset functionality. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance, repairs, and legacy design support.

Substiute Parts

CD40175BCN

onsemiIn Stock: 1758CD40175BCN Datasheet

Current PartRFQ

CD40175BE

Harris CorporationIn Stock: 4087CD40175BE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD40175BCN is determined by strict adherence to the following electrical and mechanical parameters:

Critical Compatibility Parameters:

• Type: D-Type flip-flop architecture
• Number of Elements: 1
• Number of Bits per Element: 4
• Output Type: Complementary outputs
• Trigger Type: Positive edge-triggered
• Package / Case: 16-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole
• Voltage - Supply: Must support 3V ~ 15V minimum range
• Operating Temperature: Must support -55°C ~ 125°C minimum range

The CD40175BE qualifies as a direct substitute based on matching all critical parameters. Both parts belong to the 4000B CMOS logic series and maintain identical functional architecture, pinout configuration, and package specifications.

Parameter Comparison

Engineering Selection Recommendations

The CD40175BE (Harris Corporation) is a direct functional equivalent to the CD40175BCN. Both parts are classified as obsolete products within the 4000B CMOS logic series. Selection between these parts should be based on:

Availability and Inventory Status: The CD40175BE currently maintains higher inventory availability (4000 pcs) compared to the CD40175BCN (1698 pcs), making it the preferred choice for procurement of new stock.

Compliance Considerations: The CD40175BCN carries REACH Unaffected status, while the CD40175BE is RoHS non-compliant. Applications subject to RoHS or REACH regulatory requirements must verify compliance obligations before part selection.

Performance Characteristics: The CD40175BE demonstrates superior electrical performance with higher maximum clock frequency (14 MHz vs. 12 MHz) and lower output current requirements (6.8mA vs. 8.8mA). These characteristics make the CD40175BE suitable for applications where the original CD40175BCN specifications are met or exceeded.

Packaging: Both parts utilize identical 16-DIP through-hole packaging, ensuring direct mechanical and electrical compatibility in existing PCB designs without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the CD40175BE replace the CD40175BCN in existing designs?

A: Yes. The CD40175BE is a direct functional equivalent with identical pinout, package configuration, and core logic architecture. Both parts implement the same D-Type flip-flop functionality with 4-bit capacity and complementary outputs. No circuit modifications are required for substitution.

Q: What are the key differences between these parts?

A: The primary differences are manufacturer origin (onsemi vs. Harris Corporation) and minor electrical parameter variations. The CD40175BE operates at a higher maximum clock frequency (14 MHz vs. 12 MHz), exhibits lower output current (6.8mA vs. 8.8mA), supports a wider supply voltage range (3V ~ 18V vs. 3V ~ 15V), and has lower input capacitance (5 pF vs. 10 pF). These differences represent performance improvements or equivalent operation in the substitute part.

Q: Are there any compliance or regulatory differences?

A: Yes. The CD40175BCN is REACH Unaffected, while the CD40175BE is RoHS non-compliant. Applications operating under RoHS or REACH regulatory frameworks must verify that the selected part meets applicable compliance requirements before implementation.

Q: Will the CD40175BE work in high-temperature applications?

A: Yes. The CD40175BE maintains the same operating temperature range as the CD40175BCN (-55°C ~ 125°C TA), making it suitable for identical thermal environments.

Q: Is the 16-DIP package the same for both parts?

A: Yes. Both the CD40175BCN and CD40175BE use the 16-DIP (0.300", 7.62mm) through-hole package. Direct PCB socket compatibility is guaranteed without any mechanical modifications.

Q: Which part should I select for new designs or repairs?

A: For new procurement, the CD40175BE is recommended due to superior availability and performance characteristics that meet or exceed the original CD40175BCN specifications. Verify compliance requirements for your application before final selection.