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ICS650R-11IT Clock/Frequency Synthesizer IC Equivalent & Substitute Parts
Part Overview
The ICS650R-11IT is a Clock/Frequency Synthesizer IC manufactured by Renesas Electronics Corporation, designed for 80MHz operation in a 20-SSOP surface mount package. This component generates synchronized clock signals using a Phase-Locked Loop (PLL) architecture with crystal input and CMOS output. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Renesas Electronics Corporation |
| Category | Clock/Timing |
| Type | Clock/Frequency Synthesizer |
| PLL Architecture | Yes |
| Input Type | Crystal |
| Output Type | CMOS |
| Frequency - Maximum | 80MHz |
| Input:Output Ratio | 1:5 |
| Number of Circuits | 1 |
| Supply Voltage | 3V ~ 3.6V |
| Operating Temperature Range | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package / Case | 20-SSOP (0.154", 3.90mm Width) |
| Supplier Device Package | 20-QSOP |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the ICS650R-11IT is determined by strict equivalence across the following critical parameters:
- Functional Type: Clock/Frequency Synthesizer with PLL architecture
- Input/Output Specifications: Crystal input with CMOS output
- Frequency Rating: 80MHz maximum operation
- Multiplication Ratio: 1:5 input-to-output ratio
- Supply Voltage: 3V to 3.6V operating range
- Temperature Range: -40°C to 85°C
- Package Compatibility: 20-SSOP (0.154", 3.90mm Width) surface mount
- Circuit Count: Single circuit configuration
The substitute part 650R-11ILFT meets all electrical and mechanical parameters specified above, maintaining functional equivalence while offering improved product status and compliance characteristics.
Parameter Comparison
| Parameter | ICS650R-11IT (Main Part) | 650R-11ILFT (Substitute) |
|---|---|---|
| Manufacturer | Renesas Electronics Corporation | Renesas Electronics Corporation |
| Type | Clock/Frequency Synthesizer | Clock/Frequency Synthesizer |
| PLL | Yes | Yes |
| Input | Crystal | Crystal |
| Output | CMOS | CMOS |
| Number of Circuits | 1 | 1 |
| Ratio - Input:Output | 1:5 | 1:5 |
| Frequency - Max | 80MHz | 80MHz |
| Voltage - Supply | 3V ~ 3.6V | 3V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 20-SSOP (0.154", 3.90mm Width) | 20-SSOP (0.154", 3.90mm Width) |
| Supplier Device Package | 20-QSOP | 20-QSOP |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Obsolete | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant |
Engineering Selection Recommendations
The 650R-11ILFT serves as a direct functional equivalent to the ICS650R-11IT across all electrical and mechanical specifications. Selection between these parts should be based on the following factors:
Product Status: The ICS650R-11IT is classified as obsolete, while the 650R-11ILFT maintains active product status. For new designs and ongoing production, the 650R-11ILFT is the appropriate selection.
Regulatory Compliance: The 650R-11ILFT is ROHS3 compliant, whereas the ICS650R-11IT is RoHS non-compliant. Applications subject to RoHS requirements must use the 650R-11ILFT.
Availability: The 650R-11ILFT has confirmed inventory availability (664 Pcs), supporting production continuity and supply chain reliability.
Both parts share identical electrical performance characteristics, package geometry, and thermal operating range, ensuring direct substitution without circuit redesign or board layout modification.
Frequently Asked Questions (FAQ)
Q: Can the 650R-11ILFT replace the ICS650R-11IT in existing designs?
A: Yes. Both parts are electrically and mechanically equivalent across all specified parameters, including frequency rating, supply voltage, operating temperature range, and 20-SSOP package dimensions. Direct substitution is possible without circuit modification.
Q: What is the significance of the product status difference?
A: The ICS650R-11IT is obsolete, indicating Renesas has discontinued manufacturing and support. The 650R-11ILFT is active, ensuring continued availability, technical support, and compliance with current manufacturing standards.
Q: Are there RoHS compliance implications for substitution?
A: Yes. The ICS650R-11IT is RoHS non-compliant, while the 650R-11ILFT is ROHS3 compliant. Applications requiring RoHS certification must use the 650R-11ILFT.
Q: Do both parts use the same package footprint?
A: Yes. Both the ICS650R-11IT and 650R-11ILFT use the 20-SSOP (0.154", 3.90mm Width) surface mount package with identical pin configuration and PCB footprint requirements.
Q: What are the key electrical parameters that define substitution eligibility?
A: Substitution is based on matching: 80MHz maximum frequency, 1:5 input-to-output ratio, crystal input with CMOS output, 3V to 3.6V supply voltage, -40°C to 85°C operating temperature, and single-circuit PLL architecture.
Q: Is the moisture sensitivity level the same for both parts?
A: Yes. Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.
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