CD74HCT283M Binary Full Adder with Fast Carry

Part Overview

The CD74HCT283M is a 4-bit binary full adder with fast carry logic manufactured by Texas Instruments. This surface-mount logic IC operates within a 4.5V to 5.5V supply voltage range and is housed in a 16-SOIC package. The device is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design requirements and production needs.

Substiute Parts

CD74HCT283M

Texas InstrumentsIn Stock: 1126CD74HCT283M Datasheet

Current PartRFQ

CD74HCT283M96

Texas InstrumentsIn Stock: 2447CD74HCT283M96 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD74HCT283M is determined by strict equivalence across the following critical parameters:

• Logic function: Binary full adder with fast carry operation
• Bit width: 4-bit configuration
• Supply voltage range: 4.5V to 5.5V compatibility
• Operating temperature range: -55°C to 125°C
• Package type: 16-SOIC surface-mount form factor
• Electrical performance: Identical pin configuration and functional behavior
• Compliance certifications: ROHS3 compliance and REACH unaffected status

The CD74HCT283M96 qualifies as a direct substitute based on identical electrical specifications, package dimensions, and functional characteristics. The primary difference is packaging format: the original part uses Tube packaging, while the substitute uses Tape & Reel (TR) format. Both formats contain the same die and electrical performance.

Parameter Comparison

Engineering Selection Recommendations

The CD74HCT283M96 is the appropriate substitute for the discontinued CD74HCT283M. Both parts are manufactured by Texas Instruments and maintain identical electrical specifications, functional performance, and compliance certifications. The CD74HCT283M96 is currently in active production status with confirmed inventory availability.

The substitution is valid for all applications where the original CD74HCT283M was specified. The change in packaging format from Tube to Tape & Reel does not affect the electrical or mechanical compatibility of the component. Both parts meet ROHS3 compliance requirements and carry identical moisture sensitivity ratings.

Frequently Asked Questions (FAQ)

Q: Can the CD74HCT283M96 be used as a direct replacement for the CD74HCT283M?

A: Yes. Both parts are electrically and functionally identical. They share the same die, pin configuration, supply voltage range, operating temperature range, and 16-SOIC package dimensions. The only difference is the packaging format (Tube versus Tape & Reel).

Q: What is the difference between Tube and Tape & Reel packaging?

A: Tube packaging is used for manual handling and small-quantity applications. Tape & Reel packaging is designed for automated assembly processes and high-volume production. The components themselves are identical; only the delivery format differs.

Q: Are both parts RoHS compliant?

A: Yes. Both the CD74HCT283M and CD74HCT283M96 are ROHS3 compliant and REACH unaffected.

Q: What is the moisture sensitivity level for these parts?

A: Both parts carry an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Why is the original CD74HCT283M discontinued?

A: The CD74HCT283M in Tube packaging has been discontinued at DiGi Electronics. The CD74HCT283M96 in Tape & Reel format remains in active production and is the recommended source for new orders.