CDCFR83ADBQRG4 Equivalent & Substitute Parts

Part Overview

The CDCFR83ADBQRG4 is a Memory RDRAM Clock/Frequency Generator IC manufactured by Texas Instruments, operating at a maximum frequency of 533MHz with a single output. This device is designed for memory clock generation applications requiring precise frequency multiplication and distribution in RDRAM systems.

The CDCFR83ADBQRG4 has been discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure uninterrupted supply for production and repair applications. The substitute part maintains identical electrical and mechanical specifications while offering improved availability.

Substiute Parts

CDCFR83ADBQRG4

Texas InstrumentsIn Stock: 819CDCFR83ADBQRG4 Datasheet

Current PartRFQ

CDCFR83ADBQR

Texas InstrumentsIn Stock: 3569CDCFR83ADBQR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDCFR83ADBQRG4 is determined by strict equivalence across the following critical parameters:

• Frequency specification: Maximum operating frequency of 533MHz
• Output configuration: Single output with 1:1 input-to-output ratio
• Supply voltage range: 3.135V ~ 3.465V
• Package type: 24-SSOP surface mount package with 0.154" (3.90mm) width
• Operating temperature range: -40°C ~ 85°C
• PLL functionality: Integrated phase-locked loop
• Compliance standards: ROHS3 compliance and MSL Level 2 rating

The CDCFR83ADBQR meets all substitution criteria as a direct equivalent. Both parts share the identical base product number (CDCFR83) and are manufactured by Texas Instruments with matching electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The CDCFR83ADBQR is the direct substitute for the CDCFR83ADBQRG4. Both parts are manufactured by Texas Instruments and maintain identical electrical and mechanical specifications across all critical parameters including frequency, voltage supply, operating temperature, and package configuration.

The primary distinction is product status: the CDCFR83ADBQRG4 is discontinued at DiGi Electronics, while the CDCFR83ADBQR maintains active status with significantly higher inventory availability (3481 pieces in stock versus 748 pieces). Both parts carry ROHS3 compliance and identical MSL Level 2 ratings, ensuring equivalent environmental and regulatory compliance.

The CDCFR83ADBQR is supplied in Tape & Reel (TR) packaging, which is standard for high-volume production environments and provides superior handling and automated assembly compatibility compared to alternative packaging formats.

Frequently Asked Questions (FAQ)

Q: Are the CDCFR83ADBQRG4 and CDCFR83ADBQR electrically identical?

A: Yes. Both parts operate at 533MHz maximum frequency, accept 3.135V ~ 3.465V supply voltage, and function across the -40°C ~ 85°C temperature range. The 1:1 input-to-output ratio and single-circuit configuration are identical.

Q: Can the CDCFR83ADBQR be used as a direct replacement on existing PCBs designed for the CDCFR83ADBQRG4?

A: Yes. Both parts use the identical 24-SSOP surface mount package with 0.154" (3.90mm) width. Pin configuration, footprint, and mounting requirements are equivalent, enabling direct PCB substitution without layout modifications.

Q: What is the difference between the two part numbers?

A: The CDCFR83ADBQRG4 and CDCFR83ADBQR share the same base product number (CDCFR83) and differ only in packaging designation. The "G4" suffix in the original part number indicates a specific packaging variant that has been discontinued. The CDCFR83ADBQR represents the active production equivalent supplied in standard Tape & Reel packaging.

Q: Are both parts RoHS compliant?

A: Yes. Both the CDCFR83ADBQRG4 and CDCFR83ADBQR carry ROHS3 compliance certification, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.

Q: What is the MSL rating for these parts?

A: Both parts carry Moisture Sensitivity Level (MSL) 2 with a 1-year floor life rating. This indicates moderate moisture sensitivity requiring standard moisture control during storage and handling.