N74F283D,623 Equivalent & Substitute Parts

Part Overview

The N74F283D,623 is a 4-bit binary full adder logic IC manufactured by NXP USA Inc. in a 16-SOIC surface mount package. This component performs parallel binary addition with fast carry propagation, operating at supply voltages between 4.5V and 5.5V across a temperature range of 0°C to 70°C. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

N74F283D,623

NXP USA Inc.In Stock: 1071N74F283D,623 Datasheet

Current PartRFQ

SN74F283D

Texas InstrumentsIn Stock: 2266SN74F283D Datasheet

DirectRFQ

SN74F283DR

Texas InstrumentsIn Stock: 7347SN74F283DR Datasheet

DirectRFQ

CD74HCT283M96

Texas InstrumentsIn Stock: 2447CD74HCT283M96 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the N74F283D,623 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Logic function: Binary full adder with fast carry operation
• Bit width: 4-bit configuration
• Package type: 16-SOIC form factor with 0.154" width (3.90mm)
• Mounting technology: Surface mount
• Supply voltage range: 4.5V ~ 5.5V minimum overlap
• Pin configuration: Identical pinout required for direct replacement

Compliance Requirements:

• RoHS3 compliance status
• Moisture sensitivity level MSL 1
• REACH unaffected classification

The substitute parts identified maintain functional equivalence through identical logic operation, bit width, package geometry, and electrical specifications. Variations in operating temperature range and product status (active vs. discontinued) do not affect functional substitutability in applications operating within the specified 0°C to 70°C window.

Parameter Comparison

Engineering Selection Recommendations

SN74F283D (Texas Instruments) is the primary direct substitute. This part maintains identical electrical specifications, package geometry, and operating temperature range as the original N74F283D,623. The SN74F283D carries active product status with established supply chain availability, making it the preferred choice for replacement applications requiring exact functional equivalence.

SN74F283DR (Texas Instruments) provides equivalent functionality with identical electrical and package specifications. This variant is listed as discontinued at DiGi Electronics, indicating limited future availability. Selection of this part should be evaluated against long-term supply requirements.

CD74HCT283M96 (Texas Instruments) is the manufacturer-recommended alternative. This part operates across an extended temperature range (-55°C to 125°C) compared to the original specification (0°C to 70°C). The CD74HCT283M96 maintains the same 4-bit binary full adder function, 16-SOIC package, and supply voltage compatibility. The extended operating temperature provides additional design margin for applications requiring operation beyond standard industrial temperature ranges. This part carries active product status with established supply availability.

All three substitute options maintain ROHS3 compliance and MSL 1 moisture sensitivity classification, ensuring compatibility with modern manufacturing and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can the SN74F283D directly replace the N74F283D,623 without circuit modifications?

A: Yes. The SN74F283D maintains identical pinout, package geometry (16-SOIC), electrical specifications (4.5V to 5.5V supply), and operating temperature range (0°C to 70°C). Direct socket substitution is supported without circuit redesign.

Q: What is the functional difference between the 74F and 74HCT logic families?

A: Both families implement the same 4-bit binary full adder logic function. The 74F series uses TTL logic levels, while the 74HCT series uses CMOS technology with TTL-compatible input thresholds. The CD74HCT283M96 provides identical functional operation with extended temperature range capability (-55°C to 125°C versus 0°C to 70°C).

Q: Is the CD74HCT283M96 suitable for applications originally designed for the N74F283D,623?

A: Yes. The CD74HCT283M96 performs the same 4-bit binary addition function, operates within the original 4.5V to 5.5V supply voltage range, and uses the identical 16-SOIC package. The extended operating temperature range provides additional environmental margin without affecting compatibility in standard industrial temperature applications.

Q: What packaging options are available for these substitutes?

A: The SN74F283D is supplied in tube packaging. The SN74F283DR uses standard packaging (specific format not detailed). The CD74HCT283M96 is supplied in tape and reel format. All three maintain the 16-SOIC surface mount package geometry required for direct board-level substitution.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The SN74F283D, SN74F283DR, and CD74HCT283M96 all carry ROHS3 compliance certification with MSL 1 moisture sensitivity level, matching the original N74F283D,623 specifications.

Q: Which substitute should be selected for new designs?

A: The CD74HCT283M96 is recommended for new designs due to its active product status and extended operating temperature range. For direct replacement of existing N74F283D,623 implementations, the SN74F283D provides exact functional equivalence with established supply availability.