CDCVF855PWG4 Equivalent & Substitute Parts

Part Overview

The CDCVF855PWG4 is a PLL Clock Driver IC manufactured by Texas Instruments, designed for high-speed clock distribution applications. This device operates at a maximum frequency of 220MHz with a 2:5 input-to-output ratio and supports SSTL-2 differential signaling on both input and output. The part is packaged in a 28-TSSOP surface mount package and operates across the -40°C to 85°C temperature range with a 2.3V to 2.7V supply voltage.

The CDCVF855PWG4 has been discontinued at DiGi Electronics. Identifying equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for production and maintenance applications.

Substiute Parts

CDCVF855PWG4

Texas InstrumentsIn Stock: 875CDCVF855PWG4 Datasheet

Current PartRFQ

CDCVF855PW

Texas InstrumentsIn Stock: 1291CDCVF855PW Datasheet

MFR RecommendedRFQ

CDCV855IPW

Texas InstrumentsIn Stock: 1229CDCV855IPW Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CDCVF855PWG4 are classified based on the following substitution criteria:

MFR Recommended Substitute (Direct Replacement): The CDCVF855PW is the manufacturer-recommended substitute. This part maintains identical electrical specifications including 220MHz maximum frequency, 2:5 input-to-output ratio, SSTL-2 differential signaling, and identical supply voltage and temperature operating ranges. The only difference is packaging format (Tube vs. the original specification) and active product status. This part is suitable for direct replacement in all applications.

Parametric Equivalent (Limited Compatibility): The CDCV855IPW is classified as a parametric equivalent with the following key differences: maximum frequency is reduced to 180MHz (versus 220MHz), and the input-to-output ratio is 1:5 (versus 2:5). This part shares identical supply voltage, temperature range, package type, and SSTL-2 signaling characteristics. The CDCV855IPW is marked as "Not For New Designs" and represents a lower-performance alternative suitable only when frequency and ratio specifications can be relaxed.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Recommended): The CDCVF855PW is the appropriate choice for replacing the discontinued CDCVF855PWG4. This part is manufacturer-recommended, maintains full electrical and mechanical compatibility, and carries active product status. Both parts are ROHS3 compliant with identical MSL ratings, ensuring regulatory and environmental compliance. Current inventory availability of 1215 units supports production requirements.

For Performance-Relaxed Applications: The CDCV855IPW may be considered only when application requirements permit operation at 180MHz maximum frequency and a 1:5 input-to-output ratio instead of the original 220MHz and 2:5 specifications. This part is marked "Not For New Designs," indicating it is suitable only for legacy system maintenance or non-critical applications. Both ROHS3 compliance and MSL ratings remain identical to the main part.

Frequently Asked Questions (FAQ)

Q: Can the CDCVF855PW be used as a direct replacement for the CDCVF855PWG4? A: Yes. The CDCVF855PW is the manufacturer-recommended substitute with identical electrical specifications, package type, and operating parameters. The only difference is packaging format and active product status.

Q: What are the key differences between the CDCVF855PW and CDCV855IPW? A: The CDCVF855PW maintains the original 220MHz maximum frequency and 2:5 input-to-output ratio. The CDCV855IPW operates at a reduced 180MHz maximum frequency with a 1:5 ratio. Both share identical supply voltage, temperature range, package dimensions, and signaling standards.

Q: Is the CDCV855IPW suitable for new designs? A: No. The CDCV855IPW is marked "Not For New Designs" and should be used only for legacy system maintenance or applications where reduced frequency and ratio specifications are acceptable.

Q: Are all substitute parts in the same package? A: Yes. All parts listed use the 28-TSSOP surface mount package with identical dimensions (0.173", 4.40mm Width), ensuring mechanical compatibility on existing PCBs.

Q: Do the substitute parts meet the same compliance standards? A: Yes. Both CDCVF855PW and CDCV855IPW are ROHS3 compliant with MSL rating of 1 (Unlimited), matching the original part's environmental and regulatory compliance.