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CY2305SC-1 Equivalent & Substitute Parts
Part Overview
The CY2305SC-1 is a Fanout Buffer (Distribution) Zero Delay Buffer IC manufactured by Infineon Technologies, designed for clock distribution applications with a maximum frequency of 133.33MHz and a 1:5 input-to-output ratio. This device operates within a 3V to 3.6V supply voltage range and is housed in an 8-SOIC surface mount package.
The CY2305SC-1 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for production and maintenance applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | CY2305SC-1 |
| Manufacturer | Infineon Technologies |
| Category | Clock/Timing |
| Type | Fanout Buffer (Distribution), Zero Delay Buffer |
| Frequency - Max | 133.33MHz |
| Ratio - Input:Output | 1:5 |
| Voltage - Supply | 3V ~ 3.6V |
| Operating Temperature | 0°C ~ 70°C |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| PLL | Yes |
| Number of Circuits | 1 |
| Differential - Input:Output | No/No |
| Divider/Multiplier | No/No |
| Product Status | Obsolete |
| RoHS Status | RoHS non-compliant |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
Substitute Part Grouping Explanation
Substitute parts for the CY2305SC-1 are determined by equivalence in the following critical parameters:
- Package / Case: 8-SOIC (0.154", 3.90mm Width) — ensures mechanical and electrical compatibility with existing PCB layouts
- Voltage - Supply: 3V ~ 3.6V — maintains compatibility with power distribution networks
- Operating Temperature: 0°C ~ 70°C — ensures functional performance within specified environmental conditions
- Type: Fanout Buffer (Distribution), Zero Delay Buffer — preserves functional role in clock distribution circuits
- PLL: Yes — maintains phase-locked loop functionality
- Input/Output Configuration: Clock input, Clock output — ensures signal compatibility
- Number of Circuits: 1 — maintains single-channel architecture
- Differential - Input:Output: No/No — preserves single-ended signal characteristics
Substitute parts are grouped into two categories based on the Input:Output ratio:
Category A (1:5 Ratio): CY2305SXC-1, CY2305SXC-1H, CY2305CSXC-1 — direct functional equivalents with identical 1:5 fanout configuration
Category B (1:4 Ratio): CY2304SXC-1 — alternative with reduced fanout capability; suitable only where 4 output channels are sufficient
Parameter Comparison
| Parameter | CY2305SC-1 | CY2305SXC-1 | CY2305SXC-1H | CY2305CSXC-1 | CY2304SXC-1 |
|---|---|---|---|---|---|
| Manufacturer | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Type | Fanout Buffer (Distribution), Zero Delay Buffer | Fanout Buffer (Distribution), Zero Delay Buffer | Fanout Buffer (Distribution), Zero Delay Buffer | Fanout Buffer (Distribution), Zero Delay Buffer | Fanout Buffer (Distribution), Zero Delay Buffer |
| Frequency - Max | 133.33MHz | 133.33MHz | 133.33MHz | 133.33MHz | 133.3MHz |
| Ratio - Input:Output | 1:5 | 1:5 | 1:5 | 1:5 | 1:4 |
| Voltage - Supply | 3V ~ 3.6V | 3V ~ 3.6V | 3V ~ 3.6V | 3V ~ 3.6V | 3V ~ 3.6V |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°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) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| PLL | Yes | Yes | Yes | Yes | Yes |
| Number of Circuits | 1 | 1 | 1 | 1 | 1 |
| Differential - Input:Output | No/No | No/No | No/No | No/No | No/No |
| Divider/Multiplier | No/No | No/No | No/No | No/No | No/No |
| Product Status | Obsolete | Active | Active | Active | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 3 (168 Hours) | 3 (168 Hours) | 3 (168 Hours) | 3 (168 Hours) |
Engineering Selection Recommendations
Primary Substitutes (1:5 Ratio - Direct Functional Equivalents):
CY2305SXC-1, CY2305SXC-1H, and CY2305CSXC-1 are direct functional equivalents to the CY2305SC-1. All three parts maintain identical electrical parameters, package specifications, and operating characteristics. These parts are classified as Active products and comply with ROHS3 standards, addressing the RoHS non-compliance status of the obsolete CY2305SC-1. Selection among these three parts may be based on packaging format (Tube) and inventory availability.
Alternative Substitute (1:4 Ratio - Reduced Fanout):
CY2304SXC-1 provides functional substitution with a reduced input-to-output ratio of 1:4 instead of 1:5. This part is suitable only for applications where four output channels are sufficient. All other electrical and mechanical parameters remain equivalent. CY2304SXC-1 is Active and ROHS3 compliant.
Compliance Considerations:
All substitute parts are ROHS3 compliant and address the RoHS non-compliance of the obsolete CY2305SC-1. All parts maintain identical MSL ratings and REACH compliance status.
Frequently Asked Questions (FAQ)
Q: Can CY2305SXC-1, CY2305SXC-1H, and CY2305CSXC-1 be used interchangeably with CY2305SC-1?
A: Yes. These three parts are direct functional equivalents with identical electrical specifications, frequency ratings, voltage supply ranges, operating temperature ranges, and 8-SOIC package specifications. They are suitable for direct substitution in existing designs.
Q: What is the difference between CY2305SXC-1, CY2305SXC-1H, and CY2305CSXC-1?
A: All three parts share identical electrical and mechanical specifications. Differences are limited to packaging format designation and manufacturing lot tracking. Selection should be based on inventory availability and internal part numbering conventions.
Q: Can CY2304SXC-1 replace CY2305SC-1?
A: CY2304SXC-1 can replace CY2305SC-1 only if the application requires four output channels instead of five. The 1:4 input-to-output ratio differs from the CY2305SC-1's 1:5 ratio. All other electrical and mechanical parameters are equivalent. Circuit redesign may be necessary to accommodate the reduced fanout capability.
Q: Are all substitute parts RoHS compliant?
A: Yes. CY2305SXC-1, CY2305SXC-1H, CY2305CSXC-1, and CY2304SXC-1 are all ROHS3 compliant, addressing the RoHS non-compliance status of the obsolete CY2305SC-1.
Q: Do substitute parts require PCB layout modifications?
A: No. All substitute parts use the identical 8-SOIC (0.154", 3.90mm Width) package specification, ensuring mechanical and electrical compatibility with existing PCB layouts designed for CY2305SC-1.
Q: What is the moisture sensitivity level for substitute parts?
A: All substitute parts maintain an MSL rating of 3 (168 Hours), identical to the CY2305SC-1.
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