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CDCVF2505DG4 Equivalent & Substitute Parts
Part Overview
The CDCVF2505DG4 is a PLL Clock Driver IC manufactured by Texas Instruments, designed for clock distribution and timing applications requiring LVTTL input/output signal conditioning. This device operates at frequencies up to 200MHz with a 1:5 input-to-output ratio and is housed in an 8-SOIC surface mount package. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active product lines for ongoing design support and procurement.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | CDCVF2505DG4 |
| Manufacturer | Texas Instruments |
| Product Type | PLL Clock Driver |
| Frequency - Max | 200MHz |
| Input Signal Type | LVTTL |
| Output Signal Type | LVTTL |
| Ratio - Input:Output | 1:5 |
| Number of Circuits | 1 |
| Voltage - Supply | 3V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
| Product Status | Discontinued at DiGi Electronics |
Substitute Part Grouping Explanation
Substitution of the CDCVF2505DG4 is determined by strict alignment of the following critical parameters:
Primary Substitution Criteria:
- Package / Case: 8-SOIC (0.154", 3.90mm Width) — mechanical and electrical compatibility
- Voltage - Supply: 3V ~ 3.6V — power supply compatibility
- Ratio - Input:Output: 1:5 — functional equivalence for clock distribution
- Number of Circuits: 1 — circuit count match
- Mounting Type: Surface Mount — PCB assembly compatibility
- RoHS Status: ROHS3 Compliant — regulatory compliance
- Moisture Sensitivity Level: 1 (Unlimited) — handling and storage requirements
Secondary Compatibility Parameters:
- Input Signal Type: LVTTL or compatible logic family
- Output Signal Type: LVTTL or compatible logic family (CMOS, LVCMOS, TTL acceptable)
- Operating Temperature: -40°C ~ 85°C or subset thereof
- PLL with Bypass: Required functional feature
Substitute parts are grouped into two categories: direct Texas Instruments replacements (CDCVF2505D) and functionally equivalent Renesas Electronics Corporation zero delay buffer devices (2305 series). All listed substitutes meet the primary criteria. Renesas devices operate at 133MHz maximum frequency, which is within acceptable limits for applications not requiring the full 200MHz capability of the original part.
Parameter Comparison
| Parameter | CDCVF2505DG4 | CDCVF2505D | 2305-1DCGI | 2305-1DCGI8 | 2305-1HDCG | 2305-1HDCGI | 2305A-1DCG | 2305A-1DCGI | 2305A-1DCGI8 | 2305A-1HDCG | 2305A-1HDCGI |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Renesas | Renesas | Renesas | Renesas | Renesas | Renesas | Renesas | Renesas | Renesas |
| Product Type | PLL Clock Driver | PLL Clock Driver | Zero Delay Buffer | Zero Delay Buffer | Zero Delay Buffer | Zero Delay Buffer | Zero Delay Buffer | Zero Delay Buffer | Zero Delay Buffer | Zero Delay Buffer | Zero Delay Buffer |
| Frequency - Max | 200MHz | 200MHz | 133MHz | 133MHz | 133MHz | 133MHz | 133MHz | 133MHz | 133MHz | 133MHz | 133MHz |
| Input Signal Type | LVTTL | LVTTL | LVTTL | LVTTL | LVTTL | LVTTL | LVTTL | LVTTL | LVTTL | LVTTL | LVTTL |
| Output Signal Type | LVTTL | LVTTL | CMOS, LVCMOS, TTL | CMOS, LVCMOS, TTL | CMOS, LVCMOS, TTL | CMOS, LVCMOS, TTL | CMOS, LVCMOS, TTL | CMOS, LVCMOS, TTL | CMOS, LVCMOS, TTL | CMOS, LVCMOS, TTL | CMOS, LVCMOS, TTL |
| Ratio - Input:Output | 1:5 | 1:5 | 1:5 | 1:5 | 1:5 | 1:5 | 1:5 | 1:5 | 1:5 | 1:5 | 1:5 |
| Number of Circuits | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Voltage - Supply | 3V ~ 3.6V | 3V ~ 3.6V | 3V ~ 3.6V | 3V ~ 3.6V | 3V ~ 3.6V | 3V ~ 3.6V | 3V ~ 3.6V | 3V ~ 3.6V | 3V ~ 3.6V | 3V ~ 3.6V | 3V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | 0°C ~ 70°C | -40°C ~ 85°C | 0°C ~ 70°C | -40°C ~ 85°C | -40°C ~ 85°C | 0°C ~ 70°C | -40°C ~ 85°C |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Discontinued at DiGi Electronics | Active | Active | Active | Active | Active | Active | Active | Active | Active | Active |
Engineering Selection Recommendations
Primary Recommendation: CDCVF2505D
The CDCVF2505D is the direct successor to the CDCVF2505DG4 from Texas Instruments. This part maintains identical electrical specifications, including 200MHz maximum frequency, LVTTL input/output compatibility, and 1:5 clock distribution ratio. The CDCVF2505D is in active production status with 17,447 units in stock, ensuring long-term availability. ROHS3 compliance and MSL 1 rating are maintained. This part is the preferred choice for applications requiring the full 200MHz frequency capability and direct pin-compatible replacement.
Secondary Recommendation: Renesas 2305 Series (2305-1DCGI, 2305-1DCGI8, 2305-1HDCGI, 2305A-1DCGI, 2305A-1DCGI8, 2305A-1HDCGI)
The Renesas 2305 series zero delay buffer devices provide functional equivalence for applications operating below 133MHz. These parts maintain the same 8-SOIC package, 3V ~ 3.6V supply voltage, 1:5 ratio, and surface mount compatibility. All listed variants are in active production with inventory availability ranging from 1,202 to 7,354 units. Output signal compatibility extends to CMOS, LVCMOS, and TTL families, providing broader interface flexibility. Selection within the 2305 series depends on operating temperature requirements and packaging format (tube or tape & reel).
Temperature-Constrained Applications: 2305-1HDCG, 2305A-1DCG, 2305A-1HDCG
For applications with operating temperature limits of 0°C ~ 70°C, the 2305-1HDCG, 2305A-1DCG, and 2305A-1HDCG variants are suitable. These parts are in active production and meet all primary substitution criteria within their specified temperature range.
Full Temperature Range (-40°C ~ 85°C): 2305-1DCGI, 2305-1DCGI8, 2305-1HDCGI, 2305A-1DCGI, 2305A-1DCGI8, 2305A-1HDCGI
For applications requiring the full -40°C ~ 85°C operating temperature range matching the original CDCVF2505DG4, select from the variants with extended temperature specifications. All are in active production.
Frequently Asked Questions (FAQ)
Q: Can the CDCVF2505D directly replace the CDCVF2505DG4 without PCB modifications?
A: Yes. The CDCVF2505D is pin-compatible and maintains identical electrical specifications. No PCB layout changes are required. Both parts use the 8-SOIC package with identical pinout and signal characteristics.
Q: What is the frequency limitation when using Renesas 2305 series substitutes?
A: The Renesas 2305 series devices operate at a maximum frequency of 133MHz, compared to 200MHz for the CDCVF2505DG4 and CDCVF2505D. Applications operating below 133MHz can use these substitutes without functional impact. Applications requiring frequencies above 133MHz must use the CDCVF2505D.
Q: Are there output signal compatibility differences between the original part and Renesas substitutes?
A: The CDCVF2505DG4 provides LVTTL output. Renesas 2305 series devices provide CMOS, LVCMOS, and TTL output options. LVCMOS output is compatible with LVTTL input receivers. Verify output loading and signal integrity for your specific application.
Q: What packaging options are available for the substitute parts?
A: CDCVF2505D is supplied in Tube packaging. Renesas 2305 series variants are available in Tube or Tape & Reel (TR) formats. The 2305A-1DCGI8 is supplied in Tape & Reel. Select packaging based on assembly process requirements and order quantities.
Q: Do all substitute parts meet the same compliance standards as the original CDCVF2505DG4?
A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the original part's regulatory and handling requirements.
Q: Which substitute should I select for new designs?
A: For new designs, use the CDCVF2505D if 200MHz frequency capability is required. For applications operating below 133MHz, the Renesas 2305 series provides equivalent functionality with broader output signal compatibility and active production status. Verify operating temperature requirements to select the appropriate temperature-rated variant.
Q: Is the 1:5 input-to-output ratio maintained across all substitute parts?
A: Yes. All listed substitute parts maintain the 1:5 clock distribution ratio, ensuring functional equivalence for clock multiplication applications.
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