SN74AS20DRG4 Equivalent & Substitute Parts

Part Overview

The SN74AS20DRG4 is a NAND Gate IC with 2 channels and 4 inputs per channel, packaged in a 14-SOIC surface mount configuration. Manufactured by Texas Instruments, this component operates within the 74AS logic family and is classified as obsolete. Due to its obsolete status, identifying functionally equivalent active alternatives is essential for ongoing design support, production continuity, and component sourcing.

Substiute Parts

SN74AS20DRG4

Texas InstrumentsIn Stock: 876SN74AS20DRG4 Datasheet

Current PartRFQ

SN74AS20D

Texas InstrumentsIn Stock: 1319SN74AS20D Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74AS20DRG4 is determined by strict equivalence across the following critical parameters:

• Logic Type: NAND Gate (2 channels, 4 inputs per channel)
• Voltage Supply Range: 4.5V ~ 5.5V
• Current Output Specifications: 2mA (High), 20mA (Low)
• Input Logic Levels: Low 0.8V, High 2V
• Propagation Delay: 5ns @ 5V, 50pF
• Operating Temperature Range: 0°C ~ 70°C
• Package Configuration: 14-SOIC surface mount
• Base Product Number: 74AS20

The SN74AS20D meets all these criteria and is classified as an active product, making it a direct functional equivalent suitable for replacing the obsolete SN74AS20DRG4.

Parameter Comparison

Engineering Selection Recommendations

The SN74AS20D is the direct substitute for the SN74AS20DRG4. Both components are manufactured by Texas Instruments and share identical electrical and mechanical specifications. The primary distinction is product status: the SN74AS20DRG4 is obsolete, while the SN74AS20D maintains active production status.

Both parts maintain ROHS3 compliance and carry identical moisture sensitivity ratings. The SN74AS20D is available in higher inventory quantities, supporting production continuity and supply chain reliability. For new designs or component replacement in existing applications, the SN74AS20D is the appropriate selection.

Frequently Asked Questions (FAQ)

Q: Can the SN74AS20D directly replace the SN74AS20DRG4 without circuit modifications?

A: Yes. The SN74AS20D is electrically and mechanically identical to the SN74AS20DRG4. No circuit modifications are required. Both components operate within the same voltage range, current specifications, and timing parameters.

Q: What is the difference between SN74AS20DRG4 and SN74AS20D?

A: The primary difference is product status. The SN74AS20DRG4 is obsolete, while the SN74AS20D is an active product. The packaging designation differs (DRG4 indicates a specific reel configuration), but the core logic IC is functionally equivalent.

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

A: No. Both parts carry identical RoHS3 compliance and REACH status. Moisture sensitivity levels are identical at MSL 1 (Unlimited).

Q: What packaging options are available for the SN74AS20D?

A: The SN74AS20D is supplied in Tube packaging, whereas the SN74AS20DRG4 was supplied in reel format. Both maintain the 14-SOIC surface mount package configuration.

Q: Is the SN74AS20D suitable for high-volume production?

A: Yes. The SN74AS20D is an active product with established supply chains and higher inventory availability, making it suitable for production applications requiring component continuity and reliability.