ICS502MT - 190MHz PLL Clock Generator | Renesas Electronics
MPN： ICS502MT ✓ 啟用中ICS502MT 概覽
A PLL clock generator is a clock-and-timing IC that uses phase-locked-loop technology to multiply, divide, or otherwise condition an input frequency into a stable output clock. In the broader semiconductor hierarchy, the ICS502MT belongs to clock and timing integrated circuits, clock generators, frequency synthesizers, and power-management-dependent signal-support devices. Its LOCO architecture provides a practical way to derive a higher-frequency operating clock without requiring a high-frequency external oscillator.
Key features include a maximum output frequency of 190 MHz, a CMOS output, PLL operation, and support for either a crystal or external clock input. The 8-SOIC package is 0.154 inch, or 3.90 mm, wide and is supplied in tape-and-reel form for automated production assembly. A single clock-generation circuit keeps the device focused on compact systems that need one principal clock output rather than multiple independent outputs.
ICS502MT can multiply a lower-frequency reference into a high-frequency clock suitable for digital logic, communications equipment, and embedded processing systems. Because PLL-based generation depends on stable reference and feedback behavior, component placement, power-supply integrity, output loading, and crystal or source selection remain important. The device's CMOS interface also requires attention to voltage levels and signal-integrity practices when driving external loads or long PCB traces.
Typical uses include digital control systems, communication modules, processor clock trees, embedded platforms, and interface subsystems that require a reference-derived clock. Its single-circuit architecture is advantageous when the design needs one high-quality clock and additional logic would add unnecessary cost, board area, or power consumption. Verify the required multiplication ratio, input-frequency range, output jitter, and timing margins against the complete manufacturer documentation before committing a new design.
A primary design consideration is to preserve a clean reference path from the crystal or clock source to the ICS502MT, while placing output-bypass and decoupling capacitors close to the supply pins. Follow the manufacturer's recommended crystal load capacitance and PCB layout because incorrect loading can shift frequency or impair startup. This page combines the device specifications, sourcing guidance, application context, and replacement considerations that engineers need when integrating the ICS502MT into a clock-generation design.
直接替換替代品，適用於 ICS502MT — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
ICS502MT 規格
| Product Type | PLL clock generator |
| Maximum Output Frequency | 190 MHz |
| Supply Voltage Range | 3 V to 5.5 V |
| Number of Circuits | 1 |
| PLL | Yes |
| Input Type | Crystal or clock |
| 輸出類型 | CMOS |
| Input-Output Ratio | 2:2 |
| Differential Input | No |
| Differential Output | No |
| 封裝 | 8-SOIC (0.154 inch, 3.90 mm width) |
| 安裝類型 | Surface mount |
| Packaging | Tape & Reel (TR) |
| Series | LOCO |
| Manufacturer | Renesas Electronics |
| Lead-Free Status | Non-compliant |
| RoHS 狀態 | Non-compliant |
ICS502MT 8-soic (0.154 inch, 3.90 mm width) 腳位配置指南
ICS502MT（8-soic (0.154 inch, 3.90 mm width) 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： ICS502MT.
請參閱 資料表 以查看完整腳位配置。
典型應用
ICS502MT 適用於 6 應用s: Digital Processor Clocking, Communication Module Clocking, Industrial Control and Automation, Embedded Sensor and IoT Nodes, Test and Measurement Instrumentation, Interface and Timing Reference.
Digital Processor Clocking
The ICS502MT is suitable for producing a reference-derived clock for digital logic, processor subsystems, and control equipment when one CMOS clock output is sufficient. Its PLL architecture accepts a crystal or external clock source and supports frequencies up to 190 MHz, while the 3 V to 5.5 V supply range accommodates common low-voltage systems. Place the reference source and feedback path according to the manufacturer layout, and verify the selected multiplication ratio against downstream timing requirements. Because this is a single-circuit clock generator, the design should not assume multiple independent outputs. Its practical benefit is compact frequency conversion from a lower-frequency source without adding a separate high-frequency oscillator.
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Communication Module Clocking
ICS502MT can support the clock tree of a compact communication module that requires one high-quality, high-frequency CMOS clock generated from a crystal or lower-frequency source. The device reaches 190 MHz and operates across 3 V to 5.5 V, matching many interfaces that combine digital control logic with high-speed communications. Designers should compare the required input frequency and ratio with the specific ICS502MT operating configuration, and should include series damping near the output if the receiving device's input capacitance creates fast edges. A clean supply reference and short clock route help preserve timing margin across temperature and supply variation.
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Industrial Control and Automation
ICS502MT fits industrial control equipment that derives a digital operating or reference clock from a crystal-backed timebase. The single PLL clock generator provides a compact solution when the control system needs one clock domain rather than multiple independently programmable outputs. Its 3 V to 5.5 V operating range supports conventional controller rails, and the 8-SOIC package is straightforward to route on a mixed-signal PCB. Engineering validation should include startup behavior across temperature, crystal load-capacitance tolerance, clock jitter, and the cumulative timing margin of all devices connected to the output. Keep sensitive analog sections separated from the clock and power-return paths.
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Embedded Sensor and IoT Nodes
The ICS502MT can provide a stable clock for compact embedded nodes that synchronize sampling, communications, and control functions. A crystal or low-frequency source can be multiplied to a clock required by digital peripherals, while the 3 V to 5.5 V supply range supports common embedded rails. Because the ICS502MT has one clock-generation circuit, it is most appropriate where a single distributed reference is adequate rather than where multiple independent frequencies are required. Pay attention to the reference-source noise and power-supply rejection, especially in systems that also contain radio-frequency or switching circuitry. Confirm the downstream load and output rise/fall expectations before finalizing the clock route.
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Test and Measurement Instrumentation
ICS502MT is applicable in compact test and measurement instruments that need a deterministic CMOS clock for counters, control logic, data converters, or digital interfaces. Its maximum frequency of 190 MHz supports high-speed digital timing tasks, and the single-circuit implementation conserves board area compared with a multi-output clock device. For instrumentation, preserve a quiet reference path and consider how clock edges interact with sensitive analog channels, particularly when the clock distribution crosses a mixed-signal partition. Validate long-term frequency stability, startup margin, and output jitter against the measurement accuracy required by the instrument. The device's 8-SOIC package also supports conventional rework and inspection processes.
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Interface and Timing Reference
ICS502MT can serve as the timing reference for a board containing several digital interfaces that must share a common clock domain. Deriving that reference through the PLL from a crystal or lower-frequency clock can simplify synchronization among controllers and transceivers. The CMOS output is suitable for many low-voltage digital loads, and the 190 MHz upper limit covers a broad range of interface clock rates. Route the output as a controlled transmission-line structure when the load is large or the trace is long, and use a controlled ground reference to limit common-mode effects. Before assigning the part as a universal board clock, check every connected device's input type, maximum frequency, and permissible duty-cycle tolerance.
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推薦產品摘要
工程參考資料，適用於 ICS502MT — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | ICS502MI |
|---|---|---|
| Package | 8-SOIC (0.154 inch, 3.90 mm width) | 8-SOIC (0.154 inch, 3.90 mm width) |
| Brand | Renesas Electronics | Renesas Electronics |
| Product Type | PLL clock generator | ICS502 family clock generator |
主要差異化特點
- Single-circuit high-frequency clock generation (對比ICS502MI)
- Broad low-voltage supply compatibility (對比ICS502MI)
- Crystal or external-clock input flexibility (對比ICS502MI)
設計說明
Keep the crystal, its load components, the clock input, and the device ground connection close together using the shortest practical loops. Maintain the reference trace geometry specified by the manufacturer so parasitic capacitance does not materially alter the crystal's load. Route the high-frequency clock output away from sensitive analog inputs and switching-node areas, and use a continuous ground reference beneath the clock path.
Treat the CMOS clock output as a high-speed signal even though the ICS502MT is a small clock generator. Confirm the input capacitance of every connected device and use source-series damping when edge rates create excessive ringing or overshoot. Avoid long unterminated branches, keep stub lengths short, and ground unused outputs when the manufacturer permits. Validate the final eye and timing behavior with the actual load, PCB, and output configuration.
Do not select a replacement solely because it uses an 8-SOIC package or belongs to the LOCO family. The approved candidate must have the same pin assignment, supply limits, input type, multiplication ratio, maximum frequency, timing characteristics, and load-capacitance requirements. In particular, the 190 MHz maximum and 2:2 ratio describe ICS502MT specifically and should not be assumed for similarly named devices. Record these checks in the schematic and qualification notes.
Place the required supply bypass capacitor close to the ICS502MT and keep its current return path short to the device ground. A quiet reference supply is particularly important because the PLL derives its high-frequency output from the input reference. Avoid sharing narrow return paths with clock-consuming digital loads where possible. Review the complete datasheet for capacitor values and layout because capacitor requirements cannot be established from the basic distributor summary.
合規資訊
The ICS502MT product information identifies RoHS non-compliant and lead-free non-compliant status. No REACH, AEC-Q100, halogen-free, or conflict-minerals declaration was identified.