SN74HC163DBRE4 Equivalent & Substitute Parts

Part Overview

The SN74HC163DBRE4 is a 4-bit binary counter IC manufactured by Texas Instruments, designed for synchronous counting applications with positive edge triggering. This component features a count rate of 36 MHz and operates across a supply voltage range of 2 V to 6 V, making it suitable for digital logic circuits requiring reliable counting functionality.

The SN74HC163DBRE4 is classified as an obsolete product. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production or maintenance requirements for systems utilizing this counter IC.

Substiute Parts

SN74HC163DBRE4

Texas InstrumentsIn Stock: 1264SN74HC163DBRE4 Datasheet

Current PartRFQ

SN74HC163NSR

Texas InstrumentsIn Stock: 3255SN74HC163NSR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74HC163DBRE4 is determined by equivalence in the following critical parameters:

• Logic Type: Binary Counter
• Number of Bits per Element: 4 Bit
• Direction: Up
• Reset Type: Synchronous
• Timing: Synchronous
• Trigger Type: Positive Edge
• Count Rate: 36 MHz
• Voltage - Supply: 2 V ~ 6 V
• Operating Temperature: -40°C ~ 85°C
• Base Product Number: 74HC163
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The SN74HC163NSR qualifies as a direct substitute based on matching all functional and electrical parameters. The primary difference lies in packaging format and product status, with the substitute offering active availability.

Parameter Comparison

Engineering Selection Recommendations

The SN74HC163NSR is the manufacturer-recommended substitute for the obsolete SN74HC163DBRE4. Both components maintain identical functional specifications, electrical characteristics, and compliance certifications. The SN74HC163NSR carries active product status with established supply chain availability, ensuring long-term component sourcing for production and maintenance applications.

Both parts satisfy ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component deployment. The substitution maintains full functional equivalence across all specified parameters.

Frequently Asked Questions (FAQ)

Q: Can the SN74HC163NSR directly replace the SN74HC163DBRE4 in existing designs?

A: Yes. Both components share identical functional specifications, electrical parameters, and operating characteristics. The substitution is functionally direct.

Q: What is the primary difference between these two parts?

A: The SN74HC163DBRE4 is classified as obsolete, while the SN74HC163NSR maintains active product status. Additionally, the parts differ in packaging format: the DBRE4 uses 16-SSOP packaging, while the NSR uses 16-SOIC packaging. Both packages maintain the same 0.209" width and 5.30mm dimensions.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity levels (MSL 1 - Unlimited).

Q: What packaging considerations apply to this substitution?

A: The SN74HC163DBRE4 uses 16-SSOP (Shrink Small Outline Package), while the SN74HC163NSR uses 16-SOIC (Small Outline Integrated Circuit). Both are surface mount packages with equivalent footprint dimensions. PCB layout compatibility should be verified for your specific application.

Q: Is the SN74HC163NSR available in higher quantities?

A: Yes. The SN74HC163NSR is actively manufactured and stocked, with documented inventory availability exceeding 3200 pieces in new original condition.