74HC283D,652 Equivalent & Substitute Parts

Part Overview

The 74HC283D,652 is a 4-bit binary full adder with fast carry logic manufactured by NXP USA Inc. This component is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing system support and procurement planning. The part operates across a supply voltage range of 2V to 6V and is housed in a 16-SOIC surface mount package. Due to its obsolete status, active equivalent parts from alternative manufacturers ensure design continuity and supply chain reliability.

Substiute Parts

74HC283D,652

NXP USA Inc.In Stock: 86674HC283D,652 Datasheet

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CD74HC283M96

Texas InstrumentsIn Stock: 1948CD74HC283M96 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74HC283D,652 is determined by strict equivalence across the following critical parameters:

• Logic Function: Binary full adder with fast carry (4-bit configuration)
• Number of Bits: 4-bit operation
• Supply Voltage Range: 2V ~ 6V compatibility
• Package Type: 16-SOIC surface mount package with identical physical dimensions (0.154", 3.90mm width)
• Mounting Technology: Surface mount configuration
• Compliance Standards: ROHS3 compliance and REACH unaffected status

The CD74HC283M96 from Texas Instruments meets all substitution criteria. Both parts share the same base product number (74HC283), identical logic function, matching supply voltage specifications, and compatible 16-SOIC packaging. The substitute part maintains full electrical and mechanical compatibility while offering active product status and extended temperature range capability.

Parameter Comparison

Engineering Selection Recommendations

The CD74HC283M96 from Texas Instruments is the direct substitute for the obsolete 74HC283D,652. Selection is based on the following engineering criteria:

• Functional Equivalence: Both parts implement identical 4-bit binary full adder logic with fast carry operation
• Electrical Compatibility: Matching supply voltage range (2V ~ 6V) ensures direct circuit integration without modification
• Package Compatibility: Identical 16-SOIC package dimensions enable direct PCB footprint compatibility
• Compliance Alignment: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements
• Product Status: The substitute part holds active status, ensuring long-term availability and supply chain continuity
• Temperature Range: The Texas Instruments part extends the lower operating temperature limit to -55°C, providing enhanced performance margin in cold environment applications

Frequently Asked Questions (FAQ)

Q: Can the CD74HC283M96 be used as a direct replacement for the 74HC283D,652?

A: Yes. Both parts share identical logic function, supply voltage specifications, and 16-SOIC package dimensions. No circuit modifications are required for substitution.

Q: Are there any electrical differences between these parts?

A: No electrical differences exist within the specified operating parameters. Both parts operate across the 2V ~ 6V supply voltage range and implement the same 4-bit binary full adder with fast carry logic.

Q: What is the significance of the extended temperature range in the Texas Instruments part?

A: The CD74HC283M96 operates from -55°C to 125°C, compared to the NXP part's -40°C to 125°C range. This provides additional performance margin for applications requiring operation at lower temperatures.

Q: Are both parts RoHS compliant?

A: Yes. Both the 74HC283D,652 and CD74HC283M96 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: Can these parts be used interchangeably on existing PCBs?

A: Yes. The identical 16-SOIC package dimensions (0.154", 3.90mm width) and surface mount configuration enable direct PCB footprint compatibility without layout modifications.

Q: Why is the NXP part listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The Texas Instruments equivalent maintains active production status, ensuring continued availability for new designs and system support.