74AC163MTC Binary Counter IC Equivalent & Substitute Parts

Part Overview

The 74AC163MTC is a 4-bit binary counter IC manufactured by onsemi, designed for synchronous counting applications with positive edge triggering. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The 74AC163 series provides a standardized logic function across multiple manufacturers, enabling direct functional substitution where electrical and mechanical parameters align.

Substiute Parts

74AC163MTC

onsemiIn Stock: 450274AC163MTC Datasheet

Current PartRFQ

CD74AC163M96

Texas InstrumentsIn Stock: 5878CD74AC163M96 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74AC163MTC is determined by functional equivalence within the 74AC163 base product family. The CD74AC163M96 qualifies as a substitute based on the following criteria:

• Identical logic function: 4-bit binary counter, 1 element, up direction
• Matching control architecture: Synchronous reset and timing, positive edge trigger
• Compatible electrical interface: Positive edge triggering and synchronous operation
• Surface mount technology: Both components use surface mount packaging
• Shared base product number: 74AC163 series designation

The primary distinction between these parts is packaging format (16-TSSOP versus 16-SOIC) and electrical performance specifications. Substitution is valid when the application's physical constraints and electrical requirements accommodate the differences in these parameters.

Parameter Comparison

Engineering Selection Recommendations

The CD74AC163M96 from Texas Instruments is an active product substitute for the obsolete 74AC163MTC. Selection between these components should be based on the following factors:

Product Availability: The CD74AC163M96 is actively manufactured and stocked, whereas the 74AC163MTC is obsolete. For new designs or ongoing production requiring long-term component availability, the CD74AC163M96 is the appropriate choice.

Compliance Status: The CD74AC163M96 carries ROHS3 compliance certification, meeting current regulatory requirements for electronic components in regulated markets. Both components maintain REACH Unaffected status.

Package Compatibility: The 16-TSSOP and 16-SOIC packages differ in physical dimensions and pin pitch. PCB layout and footprint design must accommodate the selected package. The 16-SOIC package (3.90mm width) is narrower than the 16-TSSOP package (4.40mm width).

Electrical Performance: The CD74AC163M96 operates at a lower maximum count rate (90 MHz versus 140 MHz) and supports a narrower supply voltage range (1.5 V ~ 5.5 V versus 2 V ~ 6 V). Applications requiring the full 140 MHz performance or extended low-voltage operation below 1.5 V may require design verification.

Temperature Range: The CD74AC163M96 supports an extended operating temperature range (-55°C ~ 125°C) compared to the 74AC163MTC (-40°C ~ 85°C), providing broader environmental compatibility.

Frequently Asked Questions (FAQ)

Q: Can the CD74AC163M96 directly replace the 74AC163MTC without design changes?

A: Functional replacement is possible due to identical logic architecture and control signals. However, package differences require PCB footprint modification. The narrower 16-SOIC package (3.90mm) versus 16-TSSOP (4.40mm) necessitates layout redesign. Verify that your application's voltage supply range (1.5 V ~ 5.5 V for the substitute) and maximum count rate requirement (90 MHz for the substitute) are compatible with your design specifications.

Q: What are the key differences in electrical specifications?

A: The CD74AC163M96 has a lower maximum count rate (90 MHz versus 140 MHz) and a narrower supply voltage range (1.5 V ~ 5.5 V versus 2 V ~ 6 V). If your application requires operation below 1.5 V or demands the full 140 MHz performance, the CD74AC163M96 may not be suitable without design modification.

Q: Are there any compliance or regulatory differences?

A: The CD74AC163M96 is ROHS3 compliant, whereas the 74AC163MTC compliance status is not specified. Both components are REACH Unaffected. For applications in regulated markets requiring ROHS compliance, the CD74AC163M96 is the appropriate selection.

Q: How do the package types affect component selection?

A: The 74AC163MTC uses 16-TSSOP packaging (0.173" width, 4.40mm), while the CD74AC163M96 uses 16-SOIC packaging (0.154" width, 3.90mm). These packages have different pin pitches and physical footprints. PCB design, assembly equipment, and soldering processes must be compatible with the selected package type. Verify your manufacturing capabilities support the chosen package before committing to production.

Q: Is the CD74AC163M96 suitable for high-temperature applications?

A: The CD74AC163M96 supports an extended operating temperature range of -55°C ~ 125°C, compared to the 74AC163MTC range of -40°C ~ 85°C. For applications requiring operation above 85°C or below -40°C, the CD74AC163M96 provides broader environmental compatibility.