CD40193BCN Equivalent & Substitute Parts

Part Overview

The CD40193BCN is a 4-bit binary counter IC manufactured by onsemi, designed for up/down counting applications with synchronous timing and positive edge triggering. This component operates across a wide supply voltage range (3V to 15V) and supports operating temperatures from -55°C to 125°C. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, maintenance, and new design implementations where legacy compatibility is required.

Substiute Parts

CD40193BCN

onsemiIn Stock: 1860CD40193BCN Datasheet

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CD40193BE

Harris CorporationIn Stock: 3796CD40193BE Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD40193BCN is determined by the following critical parameters:

• Logic Type & Functionality: Binary counter with 4-bit capacity, up/down counting capability
• Package Compatibility: 16-DIP (0.300", 7.62mm) through-hole mounting
• Electrical Characteristics: Positive edge triggering, asynchronous reset, synchronous timing
• Voltage Tolerance: Supply voltage range must encompass or overlap with 3V to 15V
• Temperature Range: Operating temperature capability of -55°C to 125°C
• Count Rate: Maximum frequency specification must meet or exceed application requirements

The CD40193BE qualifies as a direct substitute based on matching logic type, package format, pin configuration, and core functional parameters. Both parts belong to the 4000B CMOS logic series and maintain identical counter architecture.

Parameter Comparison

Engineering Selection Recommendations

CD40193BE (Harris Corporation) is the identified equivalent substitute for CD40193BCN. Selection between these parts should be based on the following criteria:

Voltage Supply Consideration: The CD40193BE supports an extended supply voltage range (3V to 18V) compared to the CD40193BCN (3V to 15V). Applications operating at voltages between 15V and 18V require the CD40193BE.

Count Rate Limitation: The CD40193BE specifies a maximum count rate of 5.5 MHz, which is lower than the CD40193BCN's 12.5 MHz specification. Applications requiring count rates exceeding 5.5 MHz cannot use the CD40193BE as a substitute.

Compliance Status: The CD40193BE is RoHS non-compliant, whereas the CD40193BCN carries REACH Unaffected status. Design requirements mandating RoHS compliance cannot be satisfied by the CD40193BE.

Package and Functional Equivalence: Both parts share identical 16-DIP packaging, pin configuration, and core counter functionality, ensuring direct socket compatibility in through-hole applications.

Frequently Asked Questions (FAQ)

Q: Can CD40193BE replace CD40193BCN in all applications?

A: Direct replacement is possible only when the application count rate does not exceed 5.5 MHz and the supply voltage remains within 3V to 15V. Applications requiring the full 12.5 MHz count rate capability of the CD40193BCN cannot use the CD40193BE.

Q: Are these parts pin-compatible?

A: Yes. Both CD40193BCN and CD40193BE use the 16-DIP (0.300", 7.62mm) package with identical pin assignments, enabling direct socket substitution without PCB modification.

Q: What is the difference in voltage supply range?

A: The CD40193BCN operates from 3V to 15V, while the CD40193BE extends to 18V maximum. For applications using supply voltages between 15V and 18V, only the CD40193BE is suitable.

Q: Why is count rate important for substitution?

A: Count rate defines the maximum frequency at which the counter can reliably operate. The CD40193BCN supports 12.5 MHz, while the CD40193BE supports only 5.5 MHz. High-frequency counting applications must use the CD40193BCN or verify that the CD40193BE's lower frequency meets system requirements.

Q: Are there RoHS compliance differences?

A: Yes. The CD40193BCN is REACH Unaffected, while the CD40193BE is RoHS non-compliant. Applications subject to RoHS regulations cannot use the CD40193BE.

Q: What mounting considerations apply to these parts?

A: Both parts are through-hole mounted in 16-DIP packages. No special mounting considerations differentiate these parts; standard DIP socket or PCB through-hole soldering applies to both.