CDCDB800RSLR Equivalent & Substitute Parts

Part Overview

The CDCDB800RSLR is an active clock buffer integrated circuit manufactured by Texas Instruments, classified as a Clock/Timing component. This device functions as a 1:8 clock buffer with a maximum frequency rating of 250 MHz, designed for applications requiring differential HCSL (High-Speed Current Steering Logic) clock distribution. The part is currently in active production status with 16,200 units in stock.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same product category, allowing for direct functional replacement in circuit designs while accommodating variations in packaging format and compliance certifications.

Substiute Parts

CDCDB800RSLR

Texas InstrumentsIn Stock: 16303CDCDB800RSLR Datasheet

Current PartRFQ

CDCDB803ERSLR

Texas InstrumentsIn Stock: 5039CDCDB803ERSLR Datasheet

Parametric EquivalentRFQ

CDCDB803ERSLT

Texas InstrumentsIn Stock: 988CDCDB803ERSLT Datasheet

Parametric EquivalentRFQ

CDCDB803RSLR

Texas InstrumentsIn Stock: 3283CDCDB803RSLR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CDCDB800RSLR are identified based on strict equivalence of the following critical parameters:

• Clock Buffer Type: All substitutes maintain the 1:8 clock buffer configuration
• Differential Signal Support: Input and output both support differential HCSL signaling
• Maximum Frequency: All substitutes operate at 250 MHz maximum
• Supply Voltage Range: All substitutes require 3V to 3.6V supply voltage
• Operating Temperature Range: All substitutes function across -40°C to 105°C
• Package Footprint: All substitutes use the 48-VFQFN Exposed Pad package with 48-VQFN (6x6) supplier device package
• Moisture Sensitivity: All substitutes maintain MSL 1 (Unlimited) rating

Variations between the main part and substitutes are limited to packaging format (Cut Tape & Digi-Reel versus Tape & Reel) and compliance certifications (RoHS and REACH status). These variations do not affect electrical or mechanical compatibility in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts (CDCDB803ERSLR, CDCDB803ERSLT, and CDCDB803RSLR) are electrically and mechanically equivalent to the CDCDB800RSLR for clock buffer applications requiring 1:8 distribution of 250 MHz differential HCSL signals within the 3V to 3.6V supply range.

CDCDB803RSLR is the direct equivalent in packaging format, offering Cut Tape & Digi-Reel packaging identical to the main part. This option provides 3,200 units in inventory and maintains the same RoHS status classification as the CDCDB800RSLR.

CDCDB803ERSLR and CDCDB803ERSLT are supplied in Tape & Reel format and carry ROHS3 Compliant and REACH Unaffected certifications. These variants are suitable for applications requiring enhanced compliance documentation. CDCDB803ERSLR maintains higher inventory availability at 5,001 units, while CDCDB803ERSLT provides 926 units.

Selection between these substitutes depends on packaging format requirements and compliance certification needs for the end application, with no electrical performance differentiation.

Frequently Asked Questions (FAQ)

Q: Can CDCDB803ERSLR, CDCDB803ERSLT, or CDCDB803RSLR be used as direct replacements for CDCDB800RSLR in existing circuit designs?

A: Yes. All substitute parts maintain identical electrical specifications including 1:8 clock buffer configuration, 250 MHz maximum frequency, differential HCSL input/output signaling, 3V to 3.6V supply voltage, -40°C to 105°C operating temperature range, and 48-VFQFN Exposed Pad package footprint. Direct PCB-level substitution is supported without circuit modification.

Q: What is the difference between Cut Tape & Digi-Reel and Tape & Reel packaging formats?

A: Cut Tape & Digi-Reel format provides individual component strips suitable for manual handling and smaller production volumes. Tape & Reel format supplies components on continuous reels optimized for automated assembly equipment. Both formats contain identical components with the same 48-VQFN (6x6) footprint and electrical characteristics. Selection depends on assembly process requirements.

Q: Are the ROHS3 Compliant and REACH Unaffected certifications on CDCDB803ERSLR and CDCDB803ERSLT required for all applications?

A: Compliance certifications are application-dependent. ROHS3 Compliant and REACH Unaffected designations are required for products destined for European markets or applications subject to regulatory compliance mandates. The CDCDB800RSLR and CDCDB803RSLR, marked as "Not applicable" for RoHS status, are suitable for applications without such regulatory requirements. Verify compliance requirements for your specific end application.

Q: Do all substitute parts have the same moisture sensitivity level?

A: Yes. All parts including CDCDB800RSLR, CDCDB803ERSLR, CDCDB803ERSLT, and CDCDB803RSLR maintain MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions during storage or handling.

Q: Which substitute part offers the best inventory availability?

A: CDCDB803ERSLR provides the highest inventory level at 5,001 units. CDCDB803RSLR offers 3,200 units with matching packaging format to the main part. CDCDB803ERSLT provides 926 units. Inventory levels should be verified with your supplier for current availability.

Q: Are there any frequency or voltage differences between the main part and substitutes?

A: No. All parts operate at identical maximum frequency of 250 MHz and require the same 3V to 3.6V supply voltage range. Operating temperature range is also identical at -40°C to 105°C across all variants.