SN74HC4020DBRG4 Equivalent & Substitute Parts

Part Overview

The SN74HC4020DBRG4 is a 14-bit binary counter IC manufactured by Texas Instruments, housed in a 16-SSOP surface mount package. This device counts negative edge triggers with an asynchronous reset and operates at a maximum count rate of 33 MHz across a supply voltage range of 2 V to 6 V.

The SN74HC4020DBRG4 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

SN74HC4020DBRG4

Texas InstrumentsIn Stock: 743SN74HC4020DBRG4 Datasheet

Current PartRFQ

SN74HC4060DBR

Texas InstrumentsIn Stock: 5332SN74HC4060DBR Datasheet

Parametric EquivalentRFQ

SN74HC4020D

Texas InstrumentsIn Stock: 2265SN74HC4020D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74HC4020DBRG4 is determined by strict equivalence across the following critical parameters:

• Logic Type: Binary Counter
• Number of Bits per Element: 14 Bit
• Direction: Up
• Trigger Type: Negative Edge
• Reset: Asynchronous
• Count Rate: 33 MHz
• Voltage - Supply: 2 V ~ 6 V
• Operating Temperature: -40°C ~ 85°C
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts must maintain identical functional specifications and environmental compliance. Package and form factor variations are permitted when mechanical constraints of the application allow.

Parameter Comparison

Engineering Selection Recommendations

SN74HC4060DBR is the primary substitute for the SN74HC4020DBRG4. Both parts share identical functional parameters, package footprint (16-SSOP), and compliance certifications. The SN74HC4060DBR maintains active product status with higher inventory availability (5300 pcs), making it the preferred selection for new designs and ongoing production requirements.

SN74HC4020D is a secondary substitute option. While functionally equivalent across all critical parameters, it uses a 16-SOIC package instead of 16-SSOP. This package variation requires PCB layout modification and is suitable only when mechanical constraints permit package substitution. The SN74HC4020D is discontinued at DiGi Electronics, limiting long-term availability.

Both substitute parts maintain ROHS3 compliance and unlimited moisture sensitivity rating, ensuring compatibility with environmental and regulatory requirements of the original design.

Frequently Asked Questions (FAQ)

Q: Can SN74HC4060DBR directly replace SN74HC4020DBRG4 without PCB modification?

A: Yes. Both parts use the 16-SSOP package with identical pin assignments and functional specifications. Direct substitution on existing PCBs is possible without layout changes.

Q: What is the difference between SN74HC4060DBR and SN74HC4020D?

A: The primary difference is package type. SN74HC4060DBR uses 16-SSOP (0.209" width), while SN74HC4020D uses 16-SOIC (0.154" width). All functional parameters are identical. Package selection depends on PCB footprint availability and mechanical constraints.

Q: Why is the original SN74HC4020DBRG4 marked as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. Substitute parts with active or recently discontinued status provide continued access to equivalent functionality.

Q: Are there any compliance differences between the main part and substitutes?

A: No. All three parts are ROHS3 compliant with MSL rating of 1 (Unlimited), ensuring equivalent environmental and regulatory compliance.

Q: What packaging format differences exist among these parts?

A: SN74HC4020DBRG4 and SN74HC4060DBR are supplied in Tape & Reel format. SN74HC4020D is supplied in Tube format. Packaging format does not affect functional compatibility but may influence procurement and handling procedures.