74HCT163D,652 Equivalent & Substitute Parts

Part Overview

The 74HCT163D,652 is a 4-bit binary counter IC manufactured by Nexperia USA Inc., designed for synchronous counting applications with positive edge triggering. This component operates at a maximum count rate of 45 MHz and is housed in a 16-SOIC surface mount package. The part is currently classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity.

Substiute Parts

74HCT163D,652

Nexperia USA Inc.In Stock: 84874HCT163D,652 Datasheet

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CD74HCT163M

Texas InstrumentsIn Stock: 2359CD74HCT163M Datasheet

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CD74HCT163M96

Texas InstrumentsIn Stock: 5456CD74HCT163M96 Datasheet

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CD74HCT163MT

Texas InstrumentsIn Stock: 1130CD74HCT163MT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74HCT163D,652 are qualified based on the following criteria:

Functional Equivalence: All substitute parts maintain the same logic type (binary counter), bit configuration (4-bit), element count (1), direction (up), reset type (synchronous), timing (synchronous), and trigger type (positive edge).

Electrical Compatibility: All substitutes operate within the same voltage supply range (4.5 V ~ 5.5 V) and maintain compatible operating temperature ranges that encompass or exceed the original specification.

Package Compatibility: All substitute parts use the identical 16-SOIC (0.154", 3.90mm Width) surface mount package, ensuring mechanical and electrical pin compatibility.

Compliance Standards: All substitutes maintain ROHS3 compliance, REACH unaffected status, and identical moisture sensitivity levels (MSL 1).

Series Consistency: All parts belong to the 74HCT logic series, ensuring functional and electrical compatibility within the same product family.

Parameter Comparison

Engineering Selection Recommendations

CD74HCT163M96 (Texas Instruments) is the primary recommended substitute. This part carries Active product status, ensuring long-term availability and manufacturing support. It is supplied in Tape & Reel format, which is standard for high-volume production environments. The extended operating temperature range (-55°C ~ 125°C) provides superior performance margin compared to the original specification.

CD74HCT163M (Texas Instruments) serves as a secondary option with Last Time Buy status. This part is available in Tube packaging, suitable for lower-volume applications or prototype development. It maintains identical electrical specifications and compliance certifications as CD74HCT163M96.

CD74HCT163MT (Texas Instruments) is available in limited inventory with Discontinued at DiGi Electronics status. While functionally equivalent, this part should be considered only when CD74HCT163M96 or CD74HCT163M are unavailable, due to reduced long-term procurement viability.

All three Texas Instruments substitutes maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compliance for current manufacturing standards.

Frequently Asked Questions (FAQ)

Q: Can the CD74HCT163M series directly replace the 74HCT163D,652?

A: Yes. All CD74HCT163M variants are functionally equivalent substitutes. They maintain identical logic configuration (4-bit binary counter, synchronous operation, positive edge triggering), electrical specifications (4.5 V ~ 5.5 V supply), and package format (16-SOIC). Pin-to-pin compatibility is guaranteed.

Q: What is the significance of the lower count rate (20 MHz) in the Texas Instruments parts compared to the original 45 MHz specification?

A: The 20 MHz count rate of the CD74HCT163M series is the specified maximum operating frequency for these parts. If your application requires operation above 20 MHz, the original 74HCT163D,652 specification must be retained. For applications operating at or below 20 MHz, the Texas Instruments substitutes are fully compatible.

Q: Which packaging format should I select for production?

A: CD74HCT163M96 in Tape & Reel format is recommended for automated assembly and high-volume production. CD74HCT163M in Tube packaging is suitable for manual assembly, prototyping, or lower-volume builds.

Q: Are there temperature range differences that affect my design?

A: The Texas Instruments substitutes operate from -55°C to 125°C, compared to the original -40°C to 125°C range. This provides an extended lower temperature margin. If your application operates within -40°C to 125°C, both the original and substitute parts are compatible. Applications requiring operation below -40°C must use the Texas Instruments alternatives.

Q: What is the current availability status of these substitutes?

A: CD74HCT163M96 maintains Active status with 5395 units in stock. CD74HCT163M is Last Time Buy with 2289 units available. CD74HCT163MT is Discontinued at DiGi Electronics with 1057 units remaining. For new designs, CD74HCT163M96 is the recommended long-term choice.