74LVC163D,112 Equivalent & Substitute Parts

Part Overview

The 74LVC163D,112 is a 4-bit binary counter IC manufactured by Nexperia USA Inc., designed for synchronous counting applications with positive edge triggering. This component features a count rate of 150 MHz and operates across a supply voltage range of 1.2 V to 3.6 V, making it suitable for low-voltage digital logic systems. The device is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

74LVC163D,112

Nexperia USA Inc.In Stock: 78874LVC163D,112 Datasheet

Current PartRFQ

SN74LV163AD

Texas InstrumentsIn Stock: 3720SN74LV163AD Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74LVC163D,112 is determined by the following critical parameters:

• Logic Function: Binary counter with 4-bit capacity, 1 element, positive edge triggering, and synchronous reset
• Package Compatibility: 16-SOIC surface mount package with 0.154" width (3.90mm)
• Electrical Characteristics: Supply voltage range, count rate, and operating temperature range
• Compliance & Certification: RoHS3 compliance and REACH status

The substitute part SN74LV163AD meets the core functional requirements of binary counting with identical bit width and package form factor. However, electrical parameter variations exist that must be evaluated for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The SN74LV163AD from Texas Instruments serves as a functional substitute for the obsolete 74LVC163D,112 based on matching logic architecture, package form factor, and compliance certifications. Both devices are ROHS3 compliant, REACH unaffected, and feature identical MSL ratings.

Selection of the SN74LV163AD requires evaluation of the following parameter deviations:

• Count Rate: The substitute operates at 90 MHz versus the original 150 MHz. Applications requiring frequencies above 90 MHz are not suitable for this substitute.
• Supply Voltage Range: The substitute accepts 2 V to 5.5 V versus the original 1.2 V to 3.6 V. Systems operating below 2 V require alternative solutions.
• Operating Temperature: The substitute supports -40°C to 85°C versus the original -40°C to 125°C. High-temperature applications exceeding 85°C are not compatible.

The SN74LV163AD is appropriate for applications where the count rate requirement does not exceed 90 MHz, supply voltage remains within 2 V to 5.5 V, and operating temperature does not exceed 85°C.

Frequently Asked Questions (FAQ)

Q: Can the SN74LV163AD directly replace the 74LVC163D,112 in all applications?

A: Direct replacement is limited by electrical parameter differences. The substitute is suitable only for applications where the maximum count rate requirement is 90 MHz or lower, supply voltage is 2 V or higher, and operating temperature does not exceed 85°C.

Q: Are the package dimensions identical between the main part and substitute?

A: Yes. Both devices use the 16-SOIC package with 0.154" width (3.90mm), ensuring mechanical compatibility and identical PCB footprints.

Q: What is the significance of the product status difference?

A: The main part (74LVC163D,112) is classified as obsolete, indicating end-of-life status with no further manufacturing. The substitute (SN74LV163AD) is in Last Time Buy status, indicating limited availability but continued support for existing designs.

Q: Are both parts compliant with environmental and regulatory standards?

A: Yes. Both the 74LVC163D,112 and SN74LV163AD are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity ratings (MSL 1 - Unlimited).

Q: What is the primary limiting factor for substitution?

A: The count rate specification is the primary limiting factor. The substitute operates at 90 MHz maximum, which is 40% lower than the original 150 MHz specification. Applications requiring higher frequency operation cannot use this substitute.