LAN9117-MD - 10/100 Ethernet Controller | Microchip
料号： LAN9117-MD ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
LAN9117-MD 概述
What is an Ethernet controller? An Ethernet controller is an integrated circuit that manages the hardware and protocol functions required for a host system to communicate over an Ethernet network. In the LAN9117-MD, the 10/100 designation refers to support for 10 Mb/s and 100 Mb/s Ethernet operation, while the non-PCI description identifies its host-side integration approach. The device is intended to reduce CPU involvement in network traffic and simplify embedded Ethernet connectivity.
The most important verified feature is the 16-bit host-interface orientation. The product data states that the LAN9117 efficiently interfaces with most 16-bit embedded CPUs and uses a low-CPU-overhead architecture. It also belongs to the LAN9118 family, which provides useful context for firmware and hardware design work involving related SMSC Ethernet controllers. The product is marketed for embedded applications where performance, flexibility, ease of integration, and system-cost control are priorities.
LAN9117-MD is suitable for industrial control, embedded instrumentation, network-connected test equipment, and compact embedded platforms that need 10/100 Ethernet without a PCI bus. Compared with a software-heavy network interface, a dedicated Ethernet controller can offload protocol and hardware tasks, reducing the burden placed on the host processor. The actual throughput, media interface, clock requirements, supply voltage, and electrical timing must be checked against the official datasheet before schematic capture.
A key design consideration is confirming the exact package footprint and pin compatibility before substituting any part. The available migration guidance explicitly states that the LAN9211 is not a drop-in replacement for the LAN9117 because it uses a different package and requires a new PCB. This distinction is important when comparing Ethernet controllers by function rather than by mechanical interchangeability.
This product page consolidates the verified LAN9117-MD role, family information, 10/100 Ethernet capability, 16-bit embedded-CPU interface, sourcing references, and migration cautions into a practical component-selection resource. Numeric electrical limits, pricing, pinout assignments, lifecycle details, and validated drop-in alternatives remain dependent on manufacturer or distributor data.
直接替换替代料： LAN9117-MD ——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： LAN9117-MD （相同外形与封装尺寸） ——差异在于 Host Interface, Product Type.
快速对比工具——选择替代料号进行并排对比：
LAN9117-MT
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →LAN9117-MD 规格参数
| Product Type | 10/100 Ethernet controller |
| Ethernet Speed Support | 10 Mb/s and 100 Mb/s |
| Host Interface | 16-bit embedded CPU interface |
| Bus Type | Non-PCI |
| Architecture | Single-chip |
| Family | LAN9118 family |
| Integration Level | Dedicated Ethernet controller |
| CPU Overhead | Low CPU overhead |
| Application Class | Medium- to high-performance embedded applications |
| RoHS 状态 | unknown |
| REACH Status | unknown |
| AEC-Q100 Qualification | unknown |
| 生命周期状态 | unknown |
LAN9117-MD standard 引脚配置指南
LAN9117-MD（standard 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： LAN9117-MD.
请参阅 数据手册 以查看完整引脚配置。
典型应用
LAN9117-MD 适用于 6 应用s: Embedded Industrial Control, Networked Test and Measurement, Industrial Gateway, Embedded Data Acquisition, Networked Embedded Appliance, Educational and Evaluation Platforms.
Embedded Industrial Control
The LAN9117-MD fits embedded industrial-control platforms that need 10/100 Ethernet without a PCI bus. Its verified 16-bit embedded-CPU interface and low CPU overhead can simplify networking for a controller that already uses a 16-bit processor bus. The device is intended for medium- to high-performance applications, so it is a sensible candidate when the host must exchange control, status, and diagnostic data across an Ethernet network. Confirm supply voltage, clocking, temperature range, isolation, and regulatory requirements in the official datasheet before using it in a safety-related or harsh industrial installation.
推荐
Networked Test and Measurement
The LAN9117-MD can support networked test and measurement equipment requiring a dedicated 10/100 Ethernet controller and a manageable host interface. The verified low-overhead architecture is relevant when the instrument must transfer results, commands, or status data without tying up extensive processor resources. A 16-bit embedded CPU can use the controller as a dedicated network engine while retaining the processor for measurement acquisition and control. The design must still validate electrical timing, bus mapping, firmware drivers, and isolation requirements; the supplied data does not provide those missing parameters.
推荐
Industrial Gateway
LAN9117-MD is a candidate for an embedded gateway that bridges a 16-bit host processor to 10/100 Ethernet. Its non-PCI architecture is useful when the product is designed around a microcontroller or application processor without a conventional PCI bus, while the single-chip controller approach can reduce board-level integration effort. The verified low CPU-overhead positioning is useful for gateway tasks that must maintain network responsiveness while the host handles protocol translation or local control. The final implementation still requires checking pin multiplexing, clock sources, PHY or MII connectivity, and package-level thermal performance.
推荐
Embedded Data Acquisition
The LAN9117-MD can be used in an embedded data-acquisition system that needs to move measurements or buffered records over 10/100 Ethernet. A dedicated controller with low CPU overhead can leave more processor time for sampling, filtering, and control, while the 16-bit host interface matches the architecture described by the verified product information. It is particularly relevant where a PCI bus is undesirable or where the product must fit into a compact embedded controller. Before implementation, verify the supported data path, buffer behavior, electrical timing, and any need for galvanic isolation or surge protection.
推荐
Networked Embedded Appliance
LAN9117-MD can serve as the Ethernet connectivity engine in a compact embedded appliance that needs deterministic access to a 10/100 network. Its single-chip, non-PCI positioning reduces the need for a separate PCI Ethernet solution, and the verified low CPU overhead supports systems where the embedded processor has limited performance budget. The device may be useful for monitoring, configuration, or service functions in an appliance enclosure. Package dimensions, thermal performance, EMC layout, and long-term availability should be validated against the final product environment and current manufacturer documentation.
推荐
Educational and Evaluation Platforms
The LAN9117-MD is suitable for an Ethernet-capable embedded evaluation platform when the objective is to prototype a 16-bit host interface and 10/100 Ethernet connectivity. The verified family and application positioning make it useful for education, firmware development, and hardware bring-up where a dedicated network controller is preferred over a software-only network stack. Evaluation boards should still follow the manufacturer reference design for power, clocking, reset, magnetics, and layout. Because the supplied data does not include a package-specific recommended schematic or complete pinout, engineers should obtain those references before fabrication.
推荐
推荐产品汇总
工程参考数据： LAN9117-MD ——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 | LAN9117-MT |
|---|---|---|
| Product Type | 10/100 non-PCI Ethernet controller | LAN9117-family Ethernet controller; exact verified description not supplied |
| Family | LAN9118 family | LAN9117 family relationship indicated |
| Brand | Microchip Technology | Microchip Technology |
关键差异点
- Verified 16-bit embedded-CPU orientation （对比 LAN9117-MT)
- Non-PCI embedded integration （对比 LAN9117-MT)
- Low CPU-overhead positioning （对比 LAN9117-MT)
- Family continuity for embedded designs （对比 LAN9211)
设计说明
Do not treat a device with a similar Ethernet function as a drop-in substitute without comparing the physical package, complete pinout, supply rails, clock requirements, host-bus timing, interrupt behavior, and PHY or MII connection. The supplied migration note specifically states that LAN9211 requires a new PCB, illustrating why functional equivalence is not sufficient. For LAN9117-MD, obtain the manufacturer datasheet for the exact ordering suffix and preserve its recommended reference layout.
Design the Ethernet signal path according to the manufacturer reference design, including the required clock, reset, magnetics or transceiver interface, termination, and controlled-impedance routing. The supplied data confirms a 10/100 Ethernet controller but does not specify the exact PHY, MII, or board-level timing parameters. Avoid routing uncertain high-speed Ethernet signals through unverified adapters, and validate eye quality, return loss, and radiated emissions in the final enclosure and PCB stack-up.
Confirm the LAN9117-MD supply voltage and sequencing requirements from the official datasheet before placing decoupling and power-regulator components. Ethernet controllers can combine digital host logic, clocking, and transceiver-related functions, so stable local power and adequate return paths are important. Calculated dissipation or current values should be treated as estimates until the electrical limits and operating conditions are confirmed; the supplied verification does not provide supply current or thermal data.
合规信息
The supplied verification identifies product function and sourcing pages but does not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements. These fields remain unknown.