CDC318ADLRG4 Equivalent & Substitute Parts

Part Overview

The CDC318ADLRG4 is a Clock Fanout Buffer (Distribution) integrated circuit manufactured by Texas Instruments, designed for 1:18 clock distribution applications with a maximum frequency of 100 MHz. This device features LVTTL input and LVTTL/TTL output capabilities in a 48-BSSOP surface mount package.

The CDC318ADLRG4 is currently discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure project timelines are not disrupted due to component unavailability.

Substiute Parts

CDC318ADLRG4

Texas InstrumentsIn Stock: 10440CDC318ADLRG4 Datasheet

Current PartRFQ

CDC318ADLR

Texas InstrumentsIn Stock: 1562CDC318ADLR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CDC318ADLRG4 are identified based on strict parametric equivalence. The following criteria determine substitutability:

• Functional Type: Fanout Buffer (Distribution), Data
• Circuit Configuration: 1 circuit with 1:18 input-to-output ratio
• Logic Levels: LVTTL input with LVTTL/TTL output capability
• Frequency Performance: Maximum 100 MHz operation
• Supply Voltage: 3.135V ~ 3.465V operating range
• Temperature Range: 0°C ~ 70°C
• Package Compatibility: 48-BSSOP surface mount package
• Compliance: ROHS3 Compliant, MSL 2 (1 Year)

Parts meeting all these parameters are considered direct parametric equivalents and may be substituted without circuit redesign.

Parameter Comparison

Engineering Selection Recommendations

The CDC318ADLR is a direct parametric equivalent to the CDC318ADLRG4. Both parts share identical electrical specifications, package geometry, and compliance certifications. The primary distinction is product status and packaging format.

The CDC318ADLR is currently active in inventory and available through distribution channels, making it the appropriate selection for new designs or component replenishment. The difference in packaging format (Cut Tape & Digi-Reel® versus Tape & Reel) does not affect electrical performance or circuit compatibility.

Both parts maintain ROHS3 compliance and identical moisture sensitivity specifications, ensuring regulatory and reliability requirements are met.

Frequently Asked Questions (FAQ)

Q: Can CDC318ADLR be used as a direct replacement for CDC318ADLRG4?

A: Yes. The CDC318ADLR meets all parametric requirements of the CDC318ADLRG4, including frequency, logic levels, supply voltage, temperature range, and package specifications. No circuit modifications are required.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® packaging?

A: Tape & Reel and Cut Tape & Digi-Reel® are different distribution formats for the same component. Both contain identical parts in the same 48-BSSOP package. The packaging format affects handling and ordering quantities but does not impact electrical performance or circuit compatibility.

Q: Are there any compliance differences between these parts?

A: No. Both CDC318ADLRG4 and CDC318ADLR are ROHS3 compliant with identical Moisture Sensitivity Level (MSL) ratings of 2 (1 Year). Regulatory and environmental compliance requirements are equivalent.

Q: What makes CDC318ADLR a suitable substitute?

A: The CDC318ADLR is substitutable because it maintains identical specifications across all critical parameters: 1:18 fanout ratio, 100 MHz maximum frequency, LVTTL input/output logic levels, 3.135V ~ 3.465V supply voltage, 0°C ~ 70°C operating temperature, and 48-BSSOP package geometry.