SN74F20DRE4 Equivalent & Substitute Parts

Part Overview

The SN74F20DRE4 is a NAND Gate IC with 2 channels and 4 inputs per channel, packaged in a 14-SOIC surface mount configuration. This component is classified as discontinued at DiGi Electronics, which necessitates identification of equivalent substitute parts for ongoing design requirements and procurement needs. The part operates within the 74F logic family standard and maintains ROHS3 compliance.

Substiute Parts

SN74F20DRE4

Texas InstrumentsIn Stock: 1163SN74F20DRE4 Datasheet

Current PartRFQ

SN74F20DR

Texas InstrumentsIn Stock: 3975SN74F20DR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74F20DRE4 is determined by strict equivalence across the following critical parameters:

• Logic Type: NAND Gate (2 channels, 4 inputs per channel)
• Electrical Specifications: Supply voltage 4.5V ~ 5.5V, output current 1mA/20mA, input logic levels 0.8V/2V, propagation delay 6ns @ 5V/50pF
• Package Configuration: 14-SOIC surface mount form factor
• Operating Temperature Range: 0°C ~ 70°C
• Compliance: ROHS3 Compliant, MSL Level 1

The SN74F20DR meets all these criteria and qualifies as a parametric equivalent. The primary distinction between the main part and its substitute is product status and packaging format (tape & reel versus individual unit packaging).

Parameter Comparison

Engineering Selection Recommendations

The SN74F20DR is a direct parametric equivalent to the SN74F20DRE4 across all electrical and mechanical specifications. The SN74F20DR maintains active product status with Texas Instruments, ensuring continued availability and supply chain reliability. Both parts carry identical ROHS3 compliance and MSL Level 1 ratings, confirming equivalent environmental and handling requirements.

The primary consideration for selection is packaging format. The SN74F20DRE4 is supplied as individual units, while the SN74F20DR is supplied in tape & reel format. For production environments requiring bulk quantities, tape & reel packaging offers manufacturing efficiency. For prototype development or low-volume applications, individual unit packaging may be more practical.

Frequently Asked Questions (FAQ)

Q: Can the SN74F20DR be used as a direct replacement for the SN74F20DRE4?

A: Yes. Both parts are identical in electrical performance, logic function, pin configuration, and package dimensions. The 14-SOIC footprint is identical, and all electrical parameters match exactly. The only difference is packaging format (tape & reel versus individual units).

Q: What is the difference between tape & reel and individual unit packaging?

A: Tape & reel packaging is a continuous strip of components wound on a reel, designed for automated assembly equipment. Individual unit packaging is a single component in a protective carrier. Both formats contain the same component with identical specifications. Selection depends on manufacturing process requirements.

Q: Are there any compliance or certification differences between these parts?

A: No. Both the SN74F20DRE4 and SN74F20DR carry identical ROHS3 compliance, MSL Level 1 ratings, REACH unaffected status, and ECCN/HTSUS classifications.

Q: Why is the SN74F20DRE4 discontinued?

A: Product discontinuation is a manufacturer decision based on market demand and product lifecycle management. The SN74F20DR remains active and available from Texas Instruments, providing continuity for the 74F20 NAND gate function.

Q: What are the critical parameters for substitution compatibility?

A: Substitution compatibility is determined by: logic type (NAND gate, 2 channels, 4 inputs), supply voltage (4.5V ~ 5.5V), output current specifications (1mA/20mA), input logic levels (0.8V/2V), propagation delay (6ns @ 5V, 50pF), operating temperature range (0°C ~ 70°C), and 14-SOIC package configuration. All these parameters must match exactly.