ICS252PM - 200MHz Dual-Output Clock Synthesizer | Renesas
料号： ICS252PM ✓ 量产中ICS252PM 概述
A clock synthesizer is a clock-and-timing integrated circuit that generates or distributes one or more related clock signals. In the broader hierarchy, ICS252PM belongs to the clock generator and frequency synthesizer family, within clock and timing ICs and ultimately the semiconductor category. Its dual-output architecture can reduce the number of separate oscillator and distribution components required in a system.
The verified product information identifies ICS252PM as a low-cost, field-programmable, dual-output clock synthesizer capable of generating two output frequencies from 314 kHz to 200 MHz. The 200 MHz upper limit makes the device applicable to communication equipment, storage systems, computer peripherals, and other systems requiring a programmable clock. Spread-spectrum operation can reduce peak spectral concentration, although exact modulation settings and implementation limits must be confirmed in the manufacturer datasheet.
The ICS252PM uses independently programmable output stages rather than a fixed-frequency oscillator arrangement. This allows one device to serve multiple clock domains when two related but unequal frequencies are required. Because it is a digital-programmable clocking component, board design should account for trace propagation, output loading, supply integrity, and EMI behavior associated with high-frequency clock distribution.
The part is offered in an 8-SOIC package, providing a conventional surface-mount footprint for PCB assembly. In an 8-SOIC, the exact pin names, programming interface, supply voltage, output-drive capability, operating-temperature range, and electrical limits are not supplied in the verified excerpts and are therefore identified as data needed rather than estimated.
Typical uses include clock generation for networking and communication equipment, read/write timing in storage systems, industrial control electronics, and embedded computing platforms. Validate the required frequency range, jitter, skew, supply voltage, and output configuration against the complete manufacturer datasheet before releasing a production design.
This product record combines verified distributor identification, package and frequency information, sourcing links, application guidance, and practical selection criteria. It distinguishes explicitly verified facts from parameters that still require confirmation, helping engineers avoid unsupported assumptions while locating an ICS252PM replacement or equivalent.
直接替换替代料： ICS252PM ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ICS252PM （相同外形与封装尺寸） ——差异在于 Package, Product Type, Maximum Output Frequency, Output Type, Device Type.
ICS502M
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →ICS501M
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →ICS501G
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →ICS252PM 规格参数
| Product Type | Clock/Frequency Synthesizer |
| Clock Generation Type | Spread Spectrum Clock Generator |
| Architecture | Field-programmable dual-output synthesizer |
| 输出数量 | 2 outputs |
| Maximum Output Frequency | 200 MHz |
| Minimum Output Frequency | 314 kHz |
| 输出配置 | Two independently programmable output frequencies |
| 封装 | 8-SOIC (0.154 inch, 3.90 mm width) |
| 安装类型 | Surface mount |
| RoHS 状态 | unknown |
| REACH Status | unknown |
| AEC-Q100 Qualification | unknown |
| Lead-Free Status | unknown |
ICS252PM 8-soic (0.154 inch, 3.90 mm width) 引脚配置指南
ICS252PM（8-soic (0.154 inch, 3.90 mm width) 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： ICS252PM.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ICS252PM 适用于 6 应用s: Networking Equipment Clock Generation, Storage Controller Timing, Industrial Control and Automation, Communication Interface Timing, Test and Measurement Equipment, Embedded Computing Clock Tree.
Networking Equipment Clock Generation
The ICS252PM fits networking equipment that requires two programmable clocks in one device because it generates independently programmed frequencies from 314 kHz to 200 MHz. The dual-output architecture can replace separate fixed oscillators when related clock domains are needed for communication interfaces, control logic, or data-conversion stages. Spread-spectrum operation may also reduce concentrated clock-spectrum peaks, depending on the selected modulation parameters. Before implementation, verify supply voltage, jitter, output skew, drive strength, and logic thresholds in the complete datasheet, and confirm that the two outputs can accommodate the intended loads without external buffers.
推荐
Storage Controller Timing
The ICS252PM is suitable for storage-controller timing blocks where programmable clocks up to 200 MHz are useful and two related outputs can reduce oscillator count. One output may serve a controller or memory interface while the other supports a different internal clock domain, subject to the device's verified configuration limits. Spread-spectrum generation can help broaden the energy distribution of a periodic clock and reduce narrowband peaks. The critical design checks are storage-interface timing, jitter, skew, I/O voltage, and trace loading; all four must be confirmed from the full manufacturer datasheet and interface specifications.
推荐
Industrial Control and Automation
The ICS252PM can support industrial control and automation systems requiring programmable timing up to 200 MHz and two output domains. Its field-programmable synthesis permits frequency changes without physically replacing a fixed oscillator, which is useful when the same controller board supports different sensor, communications, or actuator timing plans. Spread-spectrum clocking may assist electromagnetic-interference control, but its effectiveness depends on the programmed deviation and modulation rate. Confirm supply range, temperature limits, output jitter, and pin-compatible interface voltage before industrial deployment, and test clock behavior across the full board-level temperature range.
推荐
Communication Interface Timing
The ICS252PM is appropriate for communication-interface timing where a system must generate two related clocks and can operate below the verified 200 MHz maximum. Programmable output frequencies allow one synthesizer to accommodate multiple interface domains rather than imposing one fixed clock across the design. The dual outputs may feed a communications controller, data converter, or transceiver domain, provided the frequency ratio and output configuration meet the manufacturer limits. For a production design, review jitter, skew, duty-cycle distortion, clock-crossing margins, and edge-rate requirements against the relevant communications standard before relying on the nominal 200 MHz capability.
推荐
Test and Measurement Equipment
The ICS252PM can serve as a programmable timing source in test and measurement equipment requiring repeatable dual clocks up to 200 MHz. Field programming allows different clock plans to be configured for multiple test modes, while spread-spectrum capability offers an additional spectral-control option for sensitive measurements or EMC-related benches. Instrument designers must account for reference-clock accuracy, jitter transfer, output symmetry, channel-to-channel skew, and termination requirements. Because the supplied verified excerpts do not provide the complete timing or jitter limits, a laboratory characterization should verify the programmed frequencies and waveform integrity across temperature and supply variation.
推荐
Embedded Computing Clock Tree
The ICS252PM can contribute to an embedded-computing clock tree when the design needs two programmable frequencies rather than one fixed reference. A 200 MHz ceiling supports moderately fast digital domains, and the field-programmable architecture can simplify boards that support multiple operating modes. The synthesizer does not remove the need for good power and signal integrity: supply decoupling, ground return paths, trace length matching, output loading, and downstream fanout must be controlled. Check the exact output enable, programming, and supply pins in the datasheet, and validate that the selected clock frequencies meet processor, memory, and peripheral timing requirements.
推荐
推荐产品汇总
工程参考数据： ICS252PM ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | ICS502M | ICS501M | ICS501G | ICS411M | ICS409M |
|---|---|---|---|---|---|---|
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Package | 8-SOIC (0.154 inch, 3.90 mm width) | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Product Type | Dual-output spread-spectrum clock synthesizer | Clock synthesizer | Clock synthesizer | Clock generator | Clock generator | Clock generator |
关键差异点
- Single-package dual-clock generation （对比 ICS502M)
- Verified spread-spectrum clock function （对比 ICS501M)
- Broad programmable output-frequency range （对比 ICS411M)
- Field-programmability for flexible clock trees （对比 ICS409M)
设计说明
Treat both clock outputs as high-speed signals. Route each output over a continuous reference plane, minimize stubs and unnecessary vias, and use a source termination scheme appropriate to the receiver's input impedance. Confirm edge rate, duty-cycle distortion, jitter, and maximum capacitive loading from the complete datasheet before assigning trace length or fanout. Differential trace length matching is not necessarily required for a single-ended clock, but round-trip skew and downstream setup-and-hold timing must remain within the receiving device's limits.
Place the ICS252PM close to the clock-consuming circuits and keep the oscillator or reference path as short as practical. Separate clock traces from sensitive analog inputs and high-current switching paths, and maintain uninterrupted ground beneath the device. Follow the manufacturer's recommended input, output, and bypass-capacitor connections exactly; the verified excerpts do not specify capacitor values, so do not infer them from generic clock-generator designs.
Spread-spectrum clocking may reduce narrow spectral peaks, but it does not replace good layout practices. Configure the modulation rate and percentage using the manufacturer-supported limits, and measure both clock fundamentals and harmonics at the required EMI test conditions. Pay particular attention to edge-current harmonics, package/trace radiation, and cable-connected clock outputs because these can dominate emissions even when the fundamental spectrum appears improved.
Do not treat a nominal 200 MHz maximum as proof that every output can run continuously at 200 MHz under every load and supply condition. Verify configuration limits, output frequency accuracy, duty cycle, output loading, supply tolerance, and temperature range in the complete manufacturer datasheet. When replacing ICS252PM, compare pin names and functions rather than package drawing alone, because two 8-SOIC clock devices can use otherwise identical footprints for incompatible programming or clocking schemes.
合规信息
The supplied verified search results do not contain explicit compliance declarations. Compliance must be confirmed using the current Renesas product page, the manufacturer datasheet, or an authoritative distributor product record.