CDC341DWG4 Clock Fanout Buffer Equivalent & Substitute Parts

Part Overview

The CDC341DWG4 is a Clock Fanout Buffer (Distribution) IC manufactured by Texas Instruments, designed for 1:8 clock distribution at frequencies up to 80 MHz. This component features TTL-level input and output, operates on 4.75V to 5.25V supply voltage, and is housed in a 20-SOIC surface mount package.

The CDC341DWG4 is currently discontinued at DiGi Electronics, making identification of equivalent substitute parts essential for ongoing design support and production continuity. Equivalent parts maintain identical electrical and mechanical specifications, ensuring direct functional replacement without circuit redesign.

Substiute Parts

CDC341DWG4

Texas InstrumentsIn Stock: 1011CDC341DWG4 Datasheet

Current PartRFQ

CDC341DW

Texas InstrumentsIn Stock: 2162CDC341DW Datasheet

MFR RecommendedRFQ

CDC340DW

Texas InstrumentsIn Stock: 1764CDC340DW Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDC341DWG4 is determined by strict equivalence across the following critical parameters:

• Functional Type: Fanout Buffer (Distribution) with 1:8 ratio
• Logic Levels: TTL input and TTL output
• Maximum Frequency: 80 MHz minimum
• Supply Voltage Range: 4.75V ~ 5.25V
• Package: 20-SOIC (0.295", 7.50mm Width) surface mount
• Electrical Compliance: ROHS3 Compliant, MSL Level 1

All identified substitute parts meet these parameters without exception. Substitutes are categorized by product status and availability to support design continuity.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: CDC341DW

The CDC341DW is the direct manufacturer-recommended substitute for the CDC341DWG4. Both parts share identical electrical specifications, package geometry, and compliance certifications. The CDC341DW maintains Active product status with higher inventory availability (2096 units), ensuring supply chain continuity. This part is the preferred selection for direct replacement in existing designs.

Secondary Equivalent: CDC340DW

The CDC340DW is a parametric equivalent offering identical electrical and mechanical specifications. It differs only in packaging format (Tube vs. standard packaging) and base product number designation. The CDC340DW is Active with substantial inventory (1743 units). This part is suitable for applications where packaging format does not impose constraints.

Both substitute parts carry ROHS3 compliance and MSL Level 1 rating, matching the original part's environmental and regulatory qualifications.

Frequently Asked Questions (FAQ)

Q: Can CDC341DW be used as a direct replacement for CDC341DWG4?

A: Yes. The CDC341DW is the manufacturer-recommended substitute with identical electrical specifications, frequency rating, supply voltage range, and 20-SOIC package. No circuit modifications are required.

Q: What is the difference between CDC341DW and CDC340DW?

A: Both parts are parametric equivalents with identical electrical performance and package dimensions. The primary difference is the base product number (CDC341 vs. CDC340) and packaging format designation. Both are suitable for clock distribution applications requiring 1:8 fanout at 80 MHz.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. CDC341DW and CDC340DW both carry ROHS3 compliance certification, matching the original CDC341DWG4 specification.

Q: Can these parts operate at frequencies below 80 MHz?

A: Yes. The 80 MHz specification represents the maximum rated frequency. These parts operate reliably at lower frequencies within the specified supply voltage and temperature ranges.

Q: Is the 20-SOIC package identical across all three parts?

A: Yes. All parts use the 20-SOIC (0.295", 7.50mm Width) surface mount package with identical pin configuration and PCB footprint.

Q: What is the significance of MSL Level 1?

A: MSL Level 1 indicates unlimited shelf life under standard storage conditions. These parts do not require special moisture control measures during storage or handling.