ICS514M - 140MHz PLL Clock Generator | Renesas | 8-SOIC
料号： ICS514M ✓ 量产中ICS514M 概述
A clock generator is a timing IC that converts a stable low-frequency reference into one or more higher-frequency clock signals. Clock generators and fanout-distribution devices form part of the broader clock and timing IC category, supporting clock synthesis, distribution, and system timing in digital equipment. The ICS514M uses PLL multiplication to provide a practical alternative to selecting and sourcing a high-frequency crystal for every clocked circuit.
The device supports a 14.31818MHz crystal or clock input and reaches a maximum output frequency of 140MHz. Its configurable S1 and S0 input pins provide operating-state control referenced in the datasheet: when S1 and S0 are both low, the internal PLL is disabled, the CLK output remains low, and the crystal oscillator and REF output remain active. This permits a system to retain reference-clock availability while suppressing the divided or multiplied clock output.
The 8-pin surface-mount SOIC package supports compact clock-generation layouts in industrial, communications, consumer, and embedded equipment. Operating from 3V to 5.5V makes the device usable with both 3.3V and 5V system rails, although the complete external crystal, load-capacitor, and output-loading design must be evaluated against the manufacturer datasheet. Its maximum 140MHz rating is a key selection criterion for processors, programmable logic, communications equipment, and digital peripherals requiring a multiplied reference.
A primary design consideration is that PLL programming, crystal accuracy, load capacitance, output jitter, and allowable operating modes must be checked before layout release. Decoupling capacitors should be placed close to the supply pins, and clock traces should be routed with controlled impedance and short return paths to minimize noise pickup and crosstalk. The stated 140MHz maximum should not be treated as guaranteed performance for every crystal and output-divider configuration.
This product page consolidates the verified manufacturer and distributor information, provides engineering-oriented selection guidance, identifies same-footprint alternatives, and highlights design details that help buyers compare ICS514M clock generators more efficiently than a basic distributor listing alone.
直接替换替代料： ICS514M ——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： ICS514M （相同外形与封装尺寸） ——差异在于 Package, Device Type, Maximum Output Frequency, Supply Voltage Range, Category.
ICS542M
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →ICS551M
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →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 →ICS514M 规格参数
| Device Type | Clock Generator, Fanout Distribution IC |
| PLL Architecture | Single PLL |
| Maximum Output Frequency | 140 MHz |
| 输出数量 | 1 |
| Supported Reference Input | 14.31818 MHz crystal or clock input |
| Supply Voltage Range | 3 V to 5.5 V |
| 工作温度范围 | 0°C to 70°C |
| 封装 | 8-SOIC (0.154 inch, 3.90 mm width) |
| 安装类型 | Surface Mount |
| Series | LOCO |
| PLL Disable Behavior | CLK output stops low when S1 = S0 = 0 |
| Reference Output During PLL Disable | Crystal oscillator and REF output remain active |
| Output Configuration Control | S1 and S0 control inputs |
| Input Pin Designation | I = Input; TI = Tri-Level Input; O = Output; P = Power Supply Connection |
ICS514M 8-soic (0.154 inch, 3.90 mm width) 引脚配置指南
ICS514M（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： ICS514M.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ICS514M 适用于 6 应用s: Digital Processor Clocking, Programmable Logic Timing, Communications Equipment Timing, Consumer Audio Equipment, Industrial Control Systems, Test and Measurement Instrumentation.
Digital Processor Clocking
The ICS514M fits systems that need a higher-frequency clock derived from a 14.31818MHz crystal or reference clock. Its PLL-based approach and verified maximum output frequency of 140MHz allow a processor, controller, or programmable-logic device to operate from a readily sourced standard-frequency reference. Place the reference oscillator close to the clock source and keep the 140MHz route short to reduce jitter and edge distortion. The principal benefit is avoiding a separate high-frequency crystal oscillator, while the trade-off is dependence on the PLL configuration and reference quality.
推荐
Programmable Logic Timing
The ICS514M is appropriate for programmable-logic designs needing a multiplied clock up to 140MHz from a 14.31818MHz source. PLL multiplication reduces the number of independent high-speed clock sources required in a multi-device FPGA or CPLD system, while S1 and S0 provide defined operating control. The design must preserve a short reference path and verify the programmable-logic device's input-jitter tolerance. Compared with a dedicated high-frequency oscillator, the ICS514M offers integrated clock generation but requires careful reference and power conditioning.
推荐
Communications Equipment Timing
The ICS514M can supply a common clock reference for communications equipment requiring deterministic fanout from one oscillator source. Its single 140MHz-capable output is useful when a subsystem needs a locally multiplied clock while preserving a reference signal through the REF output. The 3V to 5.5V operating range supports common communications rails, and the 8-pin SOIC is straightforward to place on conventional surface-mount boards. Designers should still account for insertion loss, clock jitter, and isolation between high-speed and sensitive sections of the board.
推荐
Consumer Audio Equipment
The ICS514M can generate a system clock for consumer audio equipment when the design requires a stable, multiplied reference rather than an asynchronous free-running oscillator. The REF and CLK functions allow a system to retain a reference indication while the PLL-derived output is disabled through S1 and S0. In audio designs, the clock supply should be isolated from switching converters and digital processors to avoid audible modulation. The benefit is integrated, selectable clock generation; the limitation is the commercial 0°C to 70°C rating.
推荐
Industrial Control Systems
The ICS514M is suitable for industrial control modules that operate indoors within the verified 0°C to 70°C range and need a common clock distributed to control logic. Its 140MHz capability provides margin for digital control, data acquisition, and communication subsystems, while the 8-pin SOIC package supports repairable production layouts. The reference oscillator and output traces should remain separated from motors, relays, and switching power stages. A controller-specific clock-jitter and tolerance check remains essential before industrial deployment.
推荐
Test and Measurement Instrumentation
The ICS514M can provide a synthesized clock reference for test and measurement modules that need a stable 140MHz-class source. The S1 and S0 controls allow a fixture or instrument to retain REF while stopping CLK in a controlled state, which can simplify sequencing in a measurement setup. Supply decoupling and reference routing must be especially clean to avoid introducing timing variation into the measurement chain. ICS514M offers an economical single-output alternative to a dedicated high-frequency oscillator, subject to verifying jitter and frequency accuracy for the required test bandwidth.
推荐
推荐产品汇总
工程参考数据： ICS514M ——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 | ICS542M | ICS551M | ICS502M | ICS501M | ICS501G |
|---|---|---|---|---|---|---|
| Package | 8-SOIC (0.154 inch, 3.90 mm width) | 8-SOIC (0.154 inch, 3.90 mm width) | 8-SOIC (0.154 inch, 3.90 mm width) | 8-SOIC (0.154 inch, 3.90 mm width) | 8-SOIC (0.154 inch, 3.90 mm width) | 8-SOIC (0.154 inch, 3.90 mm width) |
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Series | LOCO | LOCO family | LOCO family | LOCO family | LOCO family | LOCO family |
关键差异点
- Verified 140MHz maximum operating frequency （对比 ICS542M)
- Documented 14.31818MHz reference behavior （对比 ICS551M)
- Defined PLL-off output behavior （对比 ICS502M)
- Single-output fanout-distribution architecture （对比 ICS501M)
- Broad 3V to 5.5V supply compatibility （对比 ICS501G)
设计说明
Place the ICS514M close to the 14.31818MHz crystal or clock source, and keep the reference path short and away from switching-regulator power nodes. Follow the manufacturer reference layout for crystal load capacitors, ground return, and decoupling placement. At frequencies as high as 140MHz, an electrically short clock route with a continuous return path is important for predictable edge timing and reduced susceptibility to coupled noise.
The verified ICS514M supply range is 3V to 5.5V, so the selected system rail must remain within those limits under transient conditions. Place local bypass capacitance at the device power pins and provide a low-impedance ground connection as specified by the manufacturer layout. Because PLL reference and clock outputs can carry supply ripple into timing jitter, keep the clock supply branch separate from high-current switching loads wherever the board topology permits.
Treat CLK as a high-speed signal even though the device has one output. Use a short trace, a continuous ground reference, and controlled termination where the source and load require it. Avoid routing CLK beneath noisy digital or power-conversion regions, and keep S1, S0, and REF nets away from the CLK trace when possible. Validate timing and jitter at the actual receiver rather than relying only on the 140MHz device rating.
Do not assume that every LOCO-family device is interchangeable with ICS514M solely because it uses an 8-pin SOIC. Check the exact pin functions, reference-input requirement, divider programming, output-frequency range, supply limits, and temperature grade before substitution. Also remember that S1 = S0 = 0 disables the internal PLL and stops CLK low while the crystal oscillator and REF output remain active.
合规信息
The supplied web data does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. The manufacturer datasheet should be reviewed for package and material declarations before regulatory submission.