Renesas 23S08-2DCG Clock Multiplier Equivalent & Substitute Parts

Part Overview

The Renesas 23S08-2DCG is a Clock Multiplier with Zero Delay Buffer IC designed for timing and synchronization applications. This 16-SOIC surface mount device operates at frequencies up to 133.3MHz with a 1:8 input-to-output ratio and supports both CMOS and LVTTL output standards. The device is classified as obsolete, making identification of functionally equivalent substitute components essential for ongoing system support and new design implementations.

Substiute Parts

23S08-2DCG

Renesas Electronics CorporationIn Stock: 69323S08-2DCG Datasheet

Current PartRFQ

CDCVF25081D

Texas InstrumentsIn Stock: 1190CDCVF25081D Datasheet

MFR RecommendedRFQ

CDCVF25081DR

Texas InstrumentsIn Stock: 6366CDCVF25081DR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute components for the 23S08-2DCG are identified based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

• Package / Case: 16-SOIC (0.154", 3.90mm Width) — identical physical footprint required for direct PCB replacement
• Mounting Type: Surface Mount — consistent with original design
• Voltage - Supply: 3V ~ 3.6V — matching supply voltage range
• Input Type: LVTTL — compatible signal input standard
• Output Type: LVTTL — compatible signal output standard
• PLL: Yes with Bypass — functional architecture requirement
• Number of Circuits: 1 — single circuit configuration

Secondary Compatibility Considerations:

• Frequency - Max: Substitute must meet or exceed 133.3MHz operational requirement
• Ratio - Input:Output: Substitute must support the required multiplication ratio
• Operating Temperature: Substitute operating range must encompass or exceed 0°C ~ 70°C

The Texas Instruments CDCVF25081D and CDCVF25081DR satisfy all primary compatibility criteria and exceed performance specifications in frequency capability (200MHz vs. 133.3MHz), making them functionally equivalent substitutes for the obsolete Renesas device.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The 23S08-2DCG is classified as obsolete. Both substitute parts (CDCVF25081D and CDCVF25081DR) are active products from Texas Instruments, ensuring long-term availability and continued manufacturing support.

Compliance and Certification: Both Texas Instruments substitutes are ROHS3 compliant, meeting current environmental and regulatory requirements. Both maintain REACH unaffected status and EAR99 export classification consistent with the original device.

Packaging and Availability: CDCVF25081D is supplied in Tube packaging. CDCVF25081DR is supplied in Cut Tape (CT) and Digi-Reel format, providing flexibility for different procurement and assembly workflows.

Performance Headroom: The Texas Instruments substitutes operate at 200MHz maximum frequency, exceeding the 133.3MHz requirement of the original device. Extended operating temperature range (-40°C ~ 85°C vs. 0°C ~ 70°C) provides additional thermal margin for demanding applications.

Frequently Asked Questions (FAQ)

Q: Can CDCVF25081D and CDCVF25081DR be used interchangeably as substitutes for 23S08-2DCG?

A: Both Texas Instruments parts are functionally equivalent substitutes. The primary difference is packaging format: CDCVF25081D uses Tube packaging, while CDCVF25081DR uses Cut Tape and Digi-Reel format. Selection depends on procurement and assembly requirements.

Q: What is the significance of the different input-to-output ratios (1:8 vs. 2:8)?

A: The 23S08-2DCG operates at a 1:8 ratio, while the CDCVF25081 series operates at 2:8. Both ratios produce eight output clock signals. The functional outcome for clock multiplication and distribution remains compatible within the specified frequency operating range.

Q: Are the operating temperature ranges compatible?

A: The original 23S08-2DCG operates from 0°C to 70°C. The CDCVF25081D and CDCVF25081DR operate from -40°C to 85°C, providing a wider temperature envelope. For applications requiring only 0°C to 70°C operation, the substitutes are fully compatible and provide additional thermal margin.

Q: What does ROHS3 compliance mean for this substitution?

A: ROHS3 compliance indicates the substitute parts meet current Restriction of Hazardous Substances directives. This is a regulatory advantage over the original obsolete device and ensures compatibility with modern manufacturing and environmental standards.

Q: Is the 16-SOIC package footprint identical between all three parts?

A: Yes. All three devices use the 16-SOIC (0.154", 3.90mm Width) package, enabling direct PCB footprint compatibility without layout modifications.

Q: What is the difference between Tube and Cut Tape packaging?

A: Tube packaging is used for lower-volume orders and manual assembly processes. Cut Tape and Digi-Reel packaging is optimized for high-volume automated assembly. Both contain identical components; packaging selection depends on production volume and assembly equipment.