74LVC163DB,112 Equivalent & Substitute Parts

Part Overview

The 74LVC163DB,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 16-SSOP surface mount package and operates across a supply voltage range of 1.2 V to 3.6 V with a maximum count rate of 150 MHz.

The 74LVC163DB,112 is classified as obsolete. Identifying suitable substitute parts is necessary to maintain design continuity, ensure component availability, and support long-term production requirements for applications currently utilizing this counter IC.

Substiute Parts

74LVC163DB,112

Nexperia USA Inc.In Stock: 86574LVC163DB,112 Datasheet

Current PartRFQ

SN74LV163ADBR

Texas InstrumentsIn Stock: 993SN74LV163ADBR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74LVC163DB,112 is determined by the following critical parameters:

• Functional Equivalence: Logic type (Binary Counter), number of bits (4 Bit), direction (Up), reset type (Synchronous), timing (Synchronous), and trigger type (Positive Edge) must remain identical.
• Package Compatibility: The 16-SSOP surface mount package and physical dimensions (0.209", 5.30mm Width) must match to ensure PCB layout compatibility.
• Electrical Operating Range: Supply voltage and operating temperature ranges must be compatible with the application's requirements.
• Compliance & Certifications: RoHS3 compliance and MSL rating must be maintained for manufacturing and environmental standards.

The SN74LV163ADBR from Texas Instruments meets these substitution criteria as an active product with identical functional specifications and package configuration.

Parameter Comparison

Engineering Selection Recommendations

The SN74LV163ADBR is a direct functional substitute for the 74LVC163DB,112. Both components maintain identical logic functionality, package configuration, and compliance certifications (ROHS3, MSL 1).

The primary consideration for substitution is the difference in maximum count rate: the 74LVC163DB,112 supports 150 MHz, while the SN74LV163ADBR supports 90 MHz. Applications operating at clock frequencies below 90 MHz will experience no functional impact. Applications requiring operation above 90 MHz must evaluate timing requirements against the substitute's specifications.

The SN74LV163ADBR offers the advantage of active product status, ensuring long-term availability and supply chain continuity compared to the obsolete 74LVC163DB,112.

Frequently Asked Questions (FAQ)

Q: Can the SN74LV163ADBR directly replace the 74LVC163DB,112 on existing PCBs?

A: Yes. Both components use the 16-SSOP package with identical physical dimensions (0.209", 5.30mm Width) and pin configuration, enabling direct PCB substitution without layout modifications.

Q: What are the key differences between these two counter ICs?

A: The primary differences are maximum count rate (150 MHz vs. 90 MHz), supply voltage range (1.2–3.6 V vs. 2–5.5 V), maximum operating temperature (125°C vs. 85°C), and product status (obsolete vs. active). Functional logic specifications remain identical.

Q: Is the SN74LV163ADBR suitable for high-frequency applications?

A: The SN74LV163ADBR supports a maximum count rate of 90 MHz. Applications requiring operation above this frequency must evaluate alternative components or confirm that actual clock frequencies remain within this specification.

Q: Are both components RoHS compliant?

A: Yes. Both the 74LVC163DB,112 and SN74LV163ADBR are ROHS3 compliant with MSL rating of 1 (Unlimited), meeting environmental and manufacturing standards.

Q: What is the supply voltage compatibility between these parts?

A: The 74LVC163DB,112 operates at 1.2–3.6 V, while the SN74LV163ADBR operates at 2–5.5 V. Applications using supply voltages between 2 V and 3.6 V are compatible with both components. Applications using supply voltages below 2 V require the original 74LVC163DB,112 or alternative low-voltage components.