Renesas 2308-2HDCG Equivalent & Substitute Parts

Part Overview

The Renesas 2308-2HDCG is a Multiplier, Zero Delay Buffer IC operating at 133.3MHz in a 16-SOIC surface mount package. This component functions as a clock/timing multiplier with integrated PLL and bypass capability, designed for LVTTL signal processing with 1:8 input-to-output ratio. The part is classified as obsolete, making equivalent substitutes necessary for ongoing system support and new designs requiring similar functionality.

Substiute Parts

2308-2HDCG

Renesas Electronics CorporationIn Stock: 7562308-2HDCG Datasheet

Current PartRFQ

2308-2DCG

Renesas Electronics CorporationIn Stock: 15342308-2DCG Datasheet

Parametric EquivalentRFQ

CDCVF25081D

Texas InstrumentsIn Stock: 1190CDCVF25081D Datasheet

MFR RecommendedRFQ

CDCVF25081DR

Texas InstrumentsIn Stock: 6366CDCVF25081DR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 2308-2HDCG is determined by the following critical parameters:

Package Compatibility: All substitute parts must use the 16-SOIC (0.154", 3.90mm Width) surface mount package to ensure PCB footprint compatibility.

Signal Interface: Input and output signal types must be LVTTL to maintain electrical compatibility with existing circuit designs.

Supply Voltage: Operating voltage range of 3V ~ 3.6V is required for direct substitution without circuit modification.

PLL with Bypass Capability: The presence of integrated PLL with bypass functionality is essential for clock multiplication and signal conditioning applications.

Frequency Performance: Maximum operating frequency must meet or exceed 133.3MHz to support the original application requirements.

Substitute parts are grouped into two categories: parametric equivalents (identical specifications) and manufacturer-recommended alternatives (enhanced specifications with compatible electrical characteristics).

Parameter Comparison

Engineering Selection Recommendations

Parametric Equivalent (2308-2DCG): This Renesas part provides identical electrical and mechanical specifications to the 2308-2HDCG, including matching frequency, ratio, and operating temperature range. Although classified as obsolete, it serves as a direct functional replacement. Selection of this part is appropriate when maintaining design continuity with existing Renesas component ecosystems. Packaging is available in Tube format with 1496 units in stock.

Manufacturer-Recommended Alternatives (CDCVF25081D / CDCVF25081DR): Texas Instruments CDCVF25081 series parts are active products offering enhanced frequency performance (200MHz versus 133.3MHz) and extended operating temperature range (-40°C ~ 85°C versus 0°C ~ 70°C). Both parts maintain identical package, supply voltage, signal interface, and PLL bypass functionality. The primary difference between CDCVF25081D and CDCVF25081DR is packaging format: CDCVF25081D is supplied in Tube, while CDCVF25081DR is supplied in Cut Tape and Digi-Reel format. Both are ROHS3 compliant and actively manufactured, providing long-term availability assurance. The input-to-output ratio differs at 2:8 versus the original 1:8, requiring circuit-level evaluation for compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 2308-2DCG be used as a direct drop-in replacement for the 2308-2HDCG?

A: Yes. The 2308-2DCG is a parametric equivalent with identical electrical specifications, package type, and pin configuration. No circuit modifications are required for substitution.

Q: What is the primary difference between CDCVF25081D and CDCVF25081DR?

A: Both parts are electrically identical. The difference is packaging format: CDCVF25081D is supplied in Tube packaging, while CDCVF25081DR is supplied in Cut Tape and Digi-Reel format. Selection depends on assembly process requirements and quantity needs.

Q: Are the Texas Instruments CDCVF25081 series parts compatible with the original 2308-2HDCG design?

A: Electrical compatibility is maintained through matching package, supply voltage, signal interface, and PLL bypass capability. The input-to-output ratio differs (2:8 versus 1:8), requiring circuit-level analysis to confirm functional compatibility with the specific application.

Q: Why is the operating temperature range different for Texas Instruments parts?

A: The CDCVF25081 series is specified for industrial temperature range (-40°C ~ 85°C) compared to the commercial range (0°C ~ 70°C) of the Renesas parts. This extended range reflects the active product status and manufacturing standards of Texas Instruments.

Q: Are all substitute parts ROHS3 compliant?

A: The 2308-2HDCG compliance status is not specified in available documentation. The 2308-2DCG, CDCVF25081D, and CDCVF25081DR are all ROHS3 compliant, meeting current environmental and regulatory requirements.

Q: What is the maximum frequency capability of each part?

A: The 2308-2HDCG and 2308-2DCG are rated for 133.3MHz maximum frequency. The CDCVF25081D and CDCVF25081DR support 200MHz maximum frequency, providing additional performance headroom for high-speed clock applications.