CDC339DWG4 Equivalent & Substitute Parts

Part Overview

The CDC339DWG4 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 across a 4.75V to 5.25V supply voltage range, and is housed in a 20-SOIC surface mount package. The CDC339DWG4 is currently discontinued at DiGi Electronics, making identification of equivalent substitute parts essential for ongoing design support and production continuity.

Substiute Parts

CDC339DWG4

Texas InstrumentsIn Stock: 887CDC339DWG4 Datasheet

Current PartRFQ

CDC339DW

Texas InstrumentsIn Stock: 2533CDC339DW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDC339DWG4 is determined by strict equivalence across the following critical parameters:

• Fanout Buffer Type: 1:8 clock distribution architecture
• Logic Levels: TTL input and TTL output compatibility
• Maximum Frequency: 80 MHz operation capability
• Supply Voltage Range: 4.75V to 5.25V
• Package Specification: 20-SOIC (0.295", 7.50mm Width) surface mount
• Thermal Range: -40°C to 85°C operating temperature
• Compliance: ROHS3 compliance and MSL Level 1 rating

The CDC339DW qualifies as a direct substitute based on identical electrical specifications and package configuration. The primary distinction is packaging format (Tube vs. standard packaging) and product status (Active vs. Discontinued).

Parameter Comparison

Engineering Selection Recommendations

The CDC339DW is the manufacturer-recommended substitute for the discontinued CDC339DWG4. Both components maintain identical electrical and mechanical specifications, ensuring direct functional equivalence in clock distribution applications. The CDC339DW is currently in active production status with higher inventory availability (2433 Pcs vs. 829 Pcs), providing improved supply chain reliability. Both parts carry ROHS3 compliance and MSL Level 1 ratings, meeting environmental and moisture sensitivity requirements. Selection between these parts should be based on packaging format requirements (Tube packaging for CDC339DW) and procurement lead times.

Frequently Asked Questions (FAQ)

Q: Can the CDC339DW directly replace the CDC339DWG4 in existing designs?

A: Yes. Both parts are electrically and mechanically identical, with matching 1:8 fanout buffer architecture, 80 MHz maximum frequency, TTL logic levels, 20-SOIC package configuration, and -40°C to 85°C operating temperature range. No circuit modifications are required.

Q: What is the primary difference between CDC339DWG4 and CDC339DW?

A: The CDC339DW is the active production variant with Tube packaging, while the CDC339DWG4 is discontinued. Electrical specifications and package dimensions are identical.

Q: Are there any compliance or certification differences?

A: No. Both parts carry identical ROHS3 compliance status and MSL Level 1 (Unlimited) moisture sensitivity ratings.

Q: Does the 20-SOIC package dimension remain the same?

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

Q: What supply voltage range do these parts support?

A: Both the CDC339DWG4 and CDC339DW operate across 4.75V to 5.25V supply voltage, suitable for standard 5V logic systems.