CDCV855PWG4 Equivalent & Substitute Parts

Part Overview

The CDCV855PWG4 is a PLL Clock Driver IC manufactured by Texas Instruments, designed for clock distribution and signal conditioning applications. This device operates at a maximum frequency of 180MHz with a 1:5 input-to-output ratio and features SSTL-2 differential input and output signaling. The part is packaged in a 28-TSSOP surface mount package and operates across a supply voltage range of 2.3V to 2.7V.

The CDCV855PWG4 is currently discontinued at DiGi Electronics, necessitating identification of equivalent substitute components for ongoing production and maintenance applications. Alternative parts must maintain functional compatibility while meeting the same electrical and mechanical specifications.

Substiute Parts

CDCV855PWG4

Texas InstrumentsIn Stock: 764CDCV855PWG4 Datasheet

Current PartRFQ

CDCVF855PW

Texas InstrumentsIn Stock: 1291CDCVF855PW Datasheet

DirectRFQ

CDCV855PW

Texas InstrumentsIn Stock: 2560CDCV855PW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CDCV855PWG4 are identified based on the following critical parameters that determine functional compatibility:

Mandatory Compatibility Parameters:

• Package / Case: 28-TSSOP (0.173", 4.40mm Width)
• Input / Output Signaling: SSTL-2 / SSTL-2
• Voltage - Supply: 2.3V ~ 2.7V
• PLL with Bypass capability
• Surface Mount mounting type
• Number of Circuits: 1

Allowable Variation Parameters:

• Frequency - Max: May exceed 180MHz
• Ratio - Input:Output: May differ from 1:5
• Operating Temperature: May exceed 0°C ~ 70°C range
• Product Status: Active or Not For New Designs acceptable

Two substitute parts meet these criteria: CDCVF855PW and CDCV855PW. Both maintain identical package, signaling, and supply voltage specifications while offering enhanced or equivalent performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

CDCVF855PW is the primary substitute for the CDCV855PWG4. This part maintains all mandatory compatibility parameters while offering enhanced performance specifications. The maximum frequency rating of 220MHz exceeds the original 180MHz specification, providing operational margin. The extended operating temperature range of -40°C to 85°C accommodates broader environmental conditions. The part holds Active product status, ensuring long-term availability and continued manufacturer support. The 2:5 input-to-output ratio differs from the original 1:5 ratio and must be evaluated for circuit-specific requirements.

CDCV855PW serves as a secondary substitute, providing identical electrical and thermal specifications to the CDCV855PWG4 with matching 1:5 input-to-output ratio. This part is designated as Not For New Designs, indicating limited future availability. Selection of this part is appropriate only when the 1:5 ratio is a critical design requirement and the CDCVF855PW ratio is incompatible with the application.

Both substitute parts are ROHS3 compliant and maintain MSL 1 moisture sensitivity classification, consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can CDCVF855PW directly replace CDCV855PWG4 in existing designs?

A: CDCVF855PW is electrically and mechanically compatible with CDCV855PWG4 for all package, signaling, and supply voltage requirements. The 2:5 input-to-output ratio differs from the original 1:5 ratio. Circuit-level verification is required to confirm the ratio change does not affect system performance.

Q: What is the primary difference between CDCVF855PW and CDCV855PW?

A: CDCVF855PW operates at a maximum frequency of 220MHz with a 2:5 input-to-output ratio and holds Active product status. CDCV855PW operates at 180MHz with a 1:5 input-to-output ratio and is designated Not For New Designs. Both maintain identical package, signaling, and supply voltage specifications.

Q: Are all substitute parts available in the same packaging format?

A: CDCVF855PW and CDCV855PW are supplied in Tube packaging, while the original CDCV855PWG4 packaging format is not specified. All three parts use the 28-TSSOP (0.173", 4.40mm Width) package case, ensuring mechanical compatibility in PCB assembly.

Q: Do the substitute parts meet the same compliance standards?

A: Both CDCVF855PW and CDCV855PW are ROHS3 compliant with MSL 1 moisture sensitivity classification, matching the original CDCV855PWG4 specifications. Both parts are REACH Unaffected and classified under ECCN EAR99.

Q: Which substitute part should be selected for new designs?

A: CDCVF855PW is the recommended substitute for new designs, as it maintains Active product status and provides enhanced frequency performance. CDCV855PW is not recommended for new designs due to its Not For New Designs designation.