ICS513MT - 140MHz PLL Clock Generator | Renesas Electronics
MPN： ICS513MT ✓ 啟用中ICS513MT 概覽
A PLL clock generator is a timing integrated circuit that locks an internal oscillator to an external reference and then produces one or more predictable clock outputs. The ICS513MT belongs to the LOCO family of clock generators, combining a phase-locked loop with fanout distribution in a small integrated package. Its clock-and-crystal input flexibility allows it to serve either an externally supplied reference or a 14.31818 MHz crystal, depending on the system architecture.
The principal operating features include a maximum frequency of 140 MHz, one clock-generation circuit, a 1:2 input-to-output ratio, CMOS output technology, and PLL bypass capability. The bypass function provides a practical alternative path when the design requires direct reference-clock behavior. The SOIC-8 package also supports conventional surface-mount assembly and gives the clock generator access to power, ground, input, and output functions within a compact footprint.
Technically, the part uses a phase-locked loop to establish an output clock related to its reference source. Because its primary inputs include either a crystal or external clock, the circuit can accommodate a frequency-standard reference used by communications, computing, control, and embedded systems. The 140 MHz upper operating frequency provides substantial timing headroom for digital logic, while the CMOS outputs are suited to systems using conventional CMOS clock-input thresholds. Exact operating limits, tolerance, and stability details must be confirmed in the manufacturer datasheet before release to production.
Typical applications include digital controller clocking, communications-interface timing, embedded processing modules, data-conversion systems, and general fanout distribution. It is particularly relevant when a board must derive a consistent high-frequency clock from a shared 14.31818 MHz reference while maintaining a compact surface-mount layout. In multi-load designs, output loading and trace length become important because excessive capacitance or impedance mismatch can degrade clock-edge quality.
The primary design consideration is to validate the reference frequency, PLL configuration, output loading, and decoupling against the worst operating conditions. Keep clock traces short, provide a clean return path, use appropriate series termination when edge rates are fast, and account for capacitive loading on every CMOS output. A solid ground plane and local input/output bypass capacitors help reduce supply-induced jitter and clock-edge distortion.
This product page combines the ICS513MT operating characteristics with package information, sourcing guidance, application analysis, and verified drop-in alternatives. It helps engineers identify whether the LOCO PLL architecture, 140 MHz capability, 1:2 ratio, and SOIC-8 footprint fit a new clock-distribution design before conducting board-level timing validation.
直接替換替代品，適用於 ICS513MT — 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： ICS513MT （相同外形與佔位） — 差異在於 Device Type, Input Type, Number of Circuits, Package.
ICS513MT 規格
| Device Type | PLL clock generator and fanout distribution IC |
| Maximum Frequency | 140 MHz |
| PLL | Yes, with bypass |
| Input Type | Clock or crystal |
| Reference Crystal Frequency | 14.31818 MHz |
| 輸出類型 | CMOS |
| Number of Circuits | 1 circuit |
| Input-to-Output Ratio | 1:2 |
| 封裝 | 8-pin SOIC |
| Package Width | 3.90 mm |
| 安裝類型 | Surface mount |
ICS513MT 3.90 mm 腳位配置指南
ICS513MT（3.90 mm 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： ICS513MT.
請參閱 資料表 以查看完整腳位配置。
典型應用
ICS513MT 適用於 6 應用s: Digital Controller Clock Distribution, Communications Interface Timing, Embedded Processing Module Clocking, Data Acquisition and Conversion Timing, Industrial Control and Instrumentation, General Clock Fanout Network.
Digital Controller Clock Distribution
The ICS513MT fits digital controller designs that need a stable reference-derived clock distributed to processors, logic, and memory-control circuits. Its clock-or-crystal input supports a 14.31818 MHz reference, while PLL operation and bypass provide two implementation choices for clock delivery. The maximum frequency of 140 MHz and 1:2 input-to-output ratio suit fixed-ratio architectures where a compact SOIC-8 implementation is preferable to a configurable clock tree. Place the device near the reference source, provide local bypassing, and route each CMOS output to a short, impedance-controlled clock trace. Engineers should verify timing margin and output loading across temperature and process conditions before production release.
Communications Interface Timing
The ICS513MT is appropriate for communications interface timing when a common reference must be converted into a predictable CMOS clock. Supporting both crystal and external-clock inputs allows the same architecture to serve locally referenced modules and board-level synchronized interfaces. Its PLL bypass function adds operational flexibility, while the 140 MHz maximum frequency provides ample range for many digital transports and control logic. Use a low-impedance reference path, maintain short output traces, and account for load-dependent edge degradation. Before schematic release, confirm the required reference frequency, supply voltage, output-current demand, and temperature range against the manufacturer datasheet.
Embedded Processing Module Clocking
The ICS513MT can supply a fixed-ratio clock for embedded processors, real-time controllers, and programmable logic assemblies that require centralized timing. A single 8-pin SOIC-8 clock generator reduces the component count compared with a discrete oscillator and separate distribution stage. The LOCO PLL architecture accepts a 14.31818 MHz crystal or external clock, and the CMOS output can feed compatible digital clock inputs. Keep the oscillator loop or source connection short, avoid routing the clock beneath noisy power stages, and validate settling time after startup. The fixed 1:2 ratio should match the receiving logic; designs needing programmable divider ratios require a more flexible timing IC.
Data Acquisition and Conversion Timing
The ICS513MT can provide the sampling or control clock for data-acquisition and data-conversion systems whose clock requirements can be satisfied by a fixed 1:2 relationship. The 140 MHz capability accommodates moderately fast digital processing chains, while CMOS outputs align with conventional digital clock-input requirements. For sensitive converters, keep the clock distribution route compact and isolate it from high-current switching paths to reduce coupled noise. The reference source should be specified with suitable accuracy and jitter for the acquisition bandwidth, and the output load should remain within the device's operating limits. Bench evaluation of edge quality and timing jitter is recommended at system level.
Industrial Control and Instrumentation
The ICS513MT is useful in industrial control and instrumentation designs that distribute a common clock to measurement, control, and communication logic. Its integrated PLL, bypass capability, and 1:2 ratio can reduce clock-tree complexity in compact control boards. The SOIC-8 package is compatible with conventional surface-mount manufacturing, but industrial temperature requirements and electromagnetic-emissions behavior must be checked for the final operating environment. Use a continuous ground plane, local decoupling, and controlled clock trace lengths to preserve edge quality. Where functional-safety or extended-temperature criteria apply, verify qualification and operating limits before incorporating the device into the production design.
General Clock Fanout Network
The ICS513MT serves as a compact fanout point for clock distribution in mixed digital systems. One internally generated CMOS clock can be routed to multiple receiving circuits, reducing duplicated oscillators and supporting synchronization across functional blocks. The fixed 1:2 ratio, PLL bypass option, and 140 MHz upper frequency make it practical for systems that do not require programmable outputs. Trace each branch directly to its destination, avoid excessive capacitive loading, and provide a nearby return path to suppress crosstalk. If receivers require different frequencies or phase relationships, separate clock domains or a programmable clock controller may be more appropriate than extending a single fanout network.
工程參考資料，適用於 ICS513MT — 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 | ICS513M |
|---|---|---|
| Device Type | PLL clock generator and fanout distribution IC | PLL clock generator and fanout distribution IC |
| Brand | Renesas Electronics | Renesas Electronics |
| Package | 8-pin SOIC | 8-pin SOIC |
| Input Type | Clock or crystal | Clock or crystal |
| Output Type | CMOS | CMOS |
| PLL Bypass | Supported | Supported |
| Input-to-Output Ratio | 1:2 | 1:2 |
| Number of Circuits | 1 circuit | 1 circuit |
主要差異化特點
- Integrated fixed-ratio clock generation and fanout (對比ICS513M)
- Reference-source flexibility (對比ICS513M)
- PLL bypass operation (對比ICS513M)
設計說明
Place the ICS513MT near the crystal or reference-clock source and minimize the length of the reference path. Keep clock outputs short, provide a continuous ground plane beneath the device, and route each CMOS output to its intended receiver without unnecessary branches. When edge rates are high, evaluate source termination and load capacitance rather than assuming that the nominal 140 MHz rating alone guarantees clean signal behavior.
Add local supply decoupling at the ICS513MT and maintain a low-impedance return to the ground plane. Follow the manufacturer datasheet for capacitor value, voltage rating, and placement requirements. A separate quiet-clock ground strategy may help in analog or mixed-signal systems, but clock and supply routing should remain consistent with the device's recommended layout to avoid adding jitter through unintended loop areas.
Do not assume that a similar LOCO ordering code is automatically interchangeable without checking the pinout, temperature grade, supply range, and lifecycle status. The 1:2 input-to-output ratio is fixed for the ICS513MT, so designs needing selectable ratios or multiple programmable outputs should use a configurable clock generator. Verify PLL versus bypass behavior and startup timing in the intended system rather than relying only on nominal frequency information.
Treat every CMOS clock output as a transmission line when its rise time is fast relative to the trace length. Maintain controlled return paths, avoid crossing noisy switching regions, and keep capacitive loading within the device's allowable output loading. If multiple receivers share an output, use a carefully designed fanout topology or a dedicated distribution buffer when rise-time degradation or edge reflection could compromise timing.
合規資訊
Compliance status was not identified in the product information used for this page. Confirm RoHS, REACH, lead-free, halogen-free, conflict-minerals, and automotive qualification directly with Renesas Electronics for the exact ordering code.