ICS342MP - 200MHz Dual-Output Clock Synthesizer | Renesas
MPN： ICS342MP ✓ 啟用中ICS342MP 概覽
A clock synthesizer is a clock and timing IC that generates, divides, multiplies, or redistributes clock signals for digital logic. Clock generators and PLL-based synthesizers belong to the broader timing-control hierarchy that includes oscillators, clock buffers, dividers, and jitter-cleaning devices. Unlike a crystal oscillator, which primarily produces a fixed reference frequency, the ICS342MP uses programmable synthesis to produce multiple related output clocks and reduce the number of separate timing components in a system.
The ICS342MP combines two configurable outputs with PLL support and a maximum frequency of 200 MHz. Its input section can operate from a clock or crystal, while its LVCMOS outputs are suited to digital logic that requires single-ended clock signals. The SOIC-8 surface-mount package also supports conventional PCB assembly and provides a compact option for communication, control, and embedded-system clock trees.
Programmability allows the output frequencies to be selected through the device configuration interface instead of requiring a separate fixed-frequency oscillator for each clock domain. This can simplify board partitioning and provide a common timing reference for related circuits. The PLL architecture is useful when the system needs an output frequency derived from a common reference, although loop behavior, output jitter, and reference stability must be evaluated during clock-tree design.
Typical uses include digital controller timing, industrial automation modules, embedded processor clock distribution, communications equipment, and general-purpose peripheral clocking. In these systems, two outputs can support related clock domains or distribute a master clock to two loads while keeping the design compact. The low-voltage supply requirement should be checked against the voltage and sequencing requirements of the logic being clocked.
The main design consideration is preserving signal integrity between the synthesizer outputs and receiving logic. Keep clock traces short, provide a continuous ground reference, use appropriate termination when required, and observe the input and output timing limits in the manufacturer datasheet. Decoupling should be placed close to the supply pin, with the value and stability requirements taken directly from the recommended application circuit.
This page consolidates the ICS342MP device identity, clock-synthesis specifications, package information, sourcing structure, and application-oriented design guidance. It also identifies the verified same-family replacement candidate and separates confirmed electrical attributes from parameters that require confirmation before schematic release or production qualification.
直接替換替代品，適用於 ICS342MP — 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。
此系列的變體
與下列產品可直接替換的同系列型號： ICS342MP （相同外形與佔位） — 差異在於 Architecture, Number of Outputs, PLL, Package.
ICS342MP 規格
| Device Type | Clock/Frequency Synthesizer |
| Architecture | Field-programmable dual-output PLL clock synthesizer |
| Maximum Output Frequency | 200 MHz |
| Number of Circuits | 1 |
| 輸出數量 | 2 |
| PLL | Yes |
| Input Types | Clock or crystal input |
| 輸出類型 | LVCMOS |
| Input-to-Output Ratio | 1:2 |
| 工作電源電壓 | 3.15 V to 3.45 V |
| 封裝 | 8-pin SOIC, 0.154 inch body width, 3.90 mm width |
| 安裝類型 | Surface mount |
| Shipping Package | Tube |
ICS342MP tube 腳位配置指南
ICS342MP（tube 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： ICS342MP.
請參閱 資料表 以查看完整腳位配置。
典型應用
ICS342MP 適用於 6 應用s: Embedded Controller Clock Distribution, Industrial Automation Timing, Communications Module Clocking, Digital Peripheral Timing Hub, Low-Voltage Digital Logic Support, General-Purpose Synchronization.
Embedded Controller Clock Distribution
The ICS342MP suits embedded controller designs that require two related clock outputs from a common reference. Its PLL-based architecture and 200 MHz maximum output provide flexibility for processor, peripheral, or communication clock domains, while the 3.15 V to 3.45 V supply range aligns with a 3.3 V digital rail. Place the device near the receiving logic, decouple the supply pin locally, and verify configuration timing against the system clock budget.
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Industrial Automation Timing
The ICS342MP can organize timing in industrial automation modules where a controller, data converter, and communications section need related clocks. Two LVCMOS outputs can reduce discrete oscillator count, and the PLL provides a programmable path from a common clock or crystal source. Confirm the exact industrial temperature grade, output-jitter requirement, and long-term clock-accuracy budget before incorporating the device into a factory-control design.
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Communications Module Clocking
The ICS342MP is suitable for communications equipment requiring configurable local clock generation rather than separate fixed-frequency sources. Its dual outputs support parallel clock trees, the PLL permits derived frequencies, and the 200 MHz ceiling accommodates demanding digital logic. For production use, route both outputs as controlled 50-ohm single-ended paths, minimize stubs, and confirm receiver setup and hold timing at the destination device.
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Digital Peripheral Timing Hub
A compact control board can use the ICS342MP as a timing hub for digital peripherals that require two synchronized or related clocks. The field-programmable architecture reduces the number of fixed oscillators, while the SOIC-8 package simplifies conventional surface-mount assembly. Choose the configuration only after checking duty-cycle, phase, jitter, and frequency limits for each output; maximum frequency alone does not establish timing quality.
推薦
Low-Voltage Digital Logic Support
The ICS342MP fits low-voltage digital systems operating near 3.3 V because its specified supply range is 3.15 V to 3.45 V. It can generate LVCMOS clocks for medium-performance logic without requiring a separate high-voltage clock source. Keep the device on a stable low-noise supply, place the required bypass capacitor at the power pin, and verify absolute maximum voltage limits when another rail shares the board.
推薦
General-Purpose Synchronization
The ICS342MP can serve general-purpose synchronization when multiple digital subsystems need a common programmable clock source. Its clock-or-crystal input and dual LVCMOS outputs provide flexible distribution in a compact SOIC-8 package. The designer should still establish the reference accuracy, PLL configuration, output phase relationship, and worst-case jitter in the system timing budget rather than assuming equal clocks are automatically suitable for every interface.
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工程參考資料，適用於 ICS342MP — 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 | ICS343MP |
|---|---|---|
| Brand | Renesas Electronics | Renesas Electronics |
| Package | 8-SOIC (0.154 inch, 3.90 mm width) | 8-SOIC (0.154 inch, 3.90 mm width) |
| Device Type | Clock/Frequency Synthesizer | Clock/Frequency Synthesizer |
| Maximum Output Frequency | 200 MHz | 200 MHz |
主要差異化特點
- Dual-output programmable clock synthesis (對比ICS343MP)
- 200 MHz maximum clock capability (對比ICS343MP)
- Clock-or-crystal reference flexibility (對比ICS343MP)
- LVCMOS output integration (對比ICS343MP)
設計說明
Route the reference and output clock traces as short, continuous paths on a solid reference plane. Avoid long stubs, test pads, and unnecessary layer transitions because they can degrade edge quality and introduce coupling into a sensitive digital clock tree. Keep the crystal, if used, close to its assigned input pins and follow the manufacturer's recommended grounding and component-placement arrangement.
Treat each LVCMOS output as a controlled transmission-line path when the trace is long, the load is capacitive, or the clock edge rate is fast. Use a continuous ground reference, maintain a practical separation from switching power nodes, and terminate according to the receiver's input characteristics. Confirm eye margin and timing behavior with an oscilloscope in the assembled design.
Do not select the ICS342MP solely from its 200 MHz maximum frequency. Verify the programmed output range, output duty-cycle limits, reference-input conditions, startup behavior, and timing uncertainty required by the receiving logic. Also confirm that the board's 3.3 V rail remains within 3.15 V to 3.45 V under load; a nominally correct supply can still exceed the permitted operating range.
Place the supply bypass capacitor immediately beside the power pin and connect it with a short return path to the ground reference. Separate the clock circuitry from noisy switching nodes and maintain short output routes. Before releasing the layout, compare every programming, reference, ground, and output connection against the pin-description table and recommended application circuit in the official Renesas datasheet.
合規資訊
Exact-part environmental and material compliance declarations were not identified. Obtain the current manufacturer declarations before releasing the component into a regulated product.
