CDCFR83DBQR Equivalent & Substitute Parts

Part Overview

The CDCFR83DBQR is a Memory RDRAM Clock/Frequency Generator IC manufactured by Texas Instruments, operating at 533MHz with a single output in 24-SSOP surface mount packaging. This device is classified as Last Time Buy, indicating discontinued production. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications requiring RDRAM clock generation functionality.

Substiute Parts

CDCFR83DBQR

Texas InstrumentsIn Stock: 13432CDCFR83DBQR Datasheet

Current PartRFQ

CDCFR83ADBQR

Texas InstrumentsIn Stock: 3569CDCFR83ADBQR Datasheet

DirectRFQ

9212AF-13LF-IN0

Renesas Electronics CorporationIn Stock: 9409212AF-13LF-IN0 Datasheet

MFR RecommendedRFQ

9212AF-13LFT-IN0

Renesas Electronics CorporationIn Stock: 10009212AF-13LFT-IN0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CDCFR83DBQR is determined by the following critical parameters:

Primary Compatibility Criteria:

• Package / Case: 24-SSOP (0.154", 3.90mm Width)
• Main Purpose: Memory, RDRAM Clock/Frequency Generator
• Input/Output Configuration: Clock input, Clock output, 1:1 ratio
• Voltage - Supply: 3.135V ~ 3.465V
• Mounting Type: Surface Mount
• PLL Functionality: Yes

Acceptable Variation Parameters:

• Frequency - Max: Equal to or greater than 533MHz
• Operating Temperature: May differ based on application requirements
• Moisture Sensitivity Level: May vary
• Product Status: Active or Last Time Buy

Substitute parts must maintain identical electrical interface characteristics, package footprint, and functional output specifications to ensure direct replacement capability without circuit redesign.

Parameter Comparison

Engineering Selection Recommendations

CDCFR83ADBQR (Direct Substitute - Texas Instruments)

The CDCFR83ADBQR is the primary equivalent for CDCFR83DBQR replacement. Both devices share identical electrical specifications, package footprint, and functional characteristics. The CDCFR83ADBQR maintains Active product status, ensuring continued availability and supply chain support. This part is recommended as the first choice for direct substitution without circuit modification.

9212AF-13LF-IN0 and 9212AF-13LFT-IN0 (Cross-Manufacturer Alternatives - Renesas Electronics Corporation)

The Renesas 9212AF series devices provide functional equivalence with the following considerations:

• Both parts operate at 600MHz maximum frequency, exceeding the 533MHz requirement of the main part
• Operating temperature range is 0°C ~ 70°C, narrower than the CDCFR83DBQR range of -40°C ~ 85°C
• Moisture Sensitivity Level is 1 (Unlimited), providing superior moisture handling compared to MSL 2
• Both devices maintain identical 24-SSOP package footprint and supply voltage specifications
• Active product status ensures long-term availability

Selection between Renesas alternatives depends on application operating temperature requirements. Applications operating within 0°C ~ 70°C may utilize either variant. Applications requiring extended temperature operation below 0°C or above 70°C must use CDCFR83ADBQR.

Frequently Asked Questions (FAQ)

Q: Can CDCFR83ADBQR directly replace CDCFR83DBQR without circuit modification?

A: Yes. The CDCFR83ADBQR is electrically and mechanically identical to CDCFR83DBQR. Both devices feature identical supply voltage (3.135V ~ 3.465V), frequency specification (533MHz), package footprint (24-SSOP), and functional output characteristics. Direct substitution is possible without PCB redesign or circuit reconfiguration.

Q: What are the key differences between Texas Instruments and Renesas alternatives?

A: The primary differences are manufacturer, maximum frequency rating (600MHz vs. 533MHz), operating temperature range (0°C ~ 70°C vs. -40°C ~ 85°C), and moisture sensitivity level (MSL 1 vs. MSL 2). All devices maintain identical supply voltage, package footprint, and 1:1 input/output ratio specifications.

Q: Are the Renesas 9212AF-13LF-IN0 and 9212AF-13LFT-IN0 interchangeable?

A: Both Renesas parts share identical electrical specifications and package footprint. Selection between them depends on application-specific requirements not detailed in the provided parameters. Consult device datasheets for variant-specific distinctions.

Q: What is the impact of operating temperature range differences?

A: The CDCFR83DBQR and CDCFR83ADBQR support -40°C ~ 85°C operation, while Renesas alternatives support 0°C ~ 70°C. Applications requiring operation below 0°C or above 70°C must use Texas Instruments parts. Applications operating within 0°C ~ 70°C may use either manufacturer's devices.

Q: Does the higher frequency rating of Renesas parts affect compatibility?

A: No. The 600MHz maximum frequency of Renesas devices exceeds the 533MHz requirement. Devices rated for higher frequencies maintain backward compatibility with lower-frequency applications. No circuit modification is required.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed parts, including the main part and all substitutes, maintain ROHS3 Compliant status, ensuring environmental and regulatory compliance across all options.

Q: What is the significance of Moisture Sensitivity Level differences?

A: MSL 2 (1 Year) indicates moisture sensitivity with a one-year shelf life under controlled conditions. MSL 1 (Unlimited) indicates superior moisture resistance with unlimited shelf life. Renesas alternatives provide enhanced moisture handling characteristics, beneficial for extended storage or high-humidity environments.