LAN9352/PT - 2-Port 10/100 Managed Ethernet Switch | Microchip
料号： LAN9352/PT ✓ 量产中| 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 |
LAN9352/PT 概述
An Ethernet switch is a network-interface semiconductor that connects multiple Ethernet endpoints, forwards frames between ports, and exposes control functions to a host processor. The LAN9352/PT sits in the hierarchy of Ethernet controller, interface IC, network switch, and embedded connectivity semiconductor. Its integrated 10/100 PHIs reduce external PHY requirements while its managed-switch architecture supports configuration by an embedded controller rather than a simple fixed-function repeater.
The principal verified features include two 10/100 Ethernet ports, integrated 10/100 Base-T/TX PHYs, and both I2C and SPI host interfaces. These interfaces give the embedded system two control paths, while the managed architecture provides a feature set intended for consumer, embedded, and industrial designs. Microchip describes the family as optimized for systems that need high integration, design flexibility, ease of integration, and system cost control.
The LAN9352/PT targets equipment that needs a compact two-port network node without a separate Ethernet switch and external PHY components. A host processor can configure the device through I2C or SPI, making it suitable for gateways, embedded controllers, industrial interfaces, and connected products. Exact port ordering, register defaults, electrical limits, timing, and management features must be confirmed in the manufacturer datasheet before schematic release.
A primary integration consideration is the 80-pin 12 x 12 mm TQFP exposed-pad footprint. The land pattern, exposed-pad connection, clock source, magnetics or integrated PHY support components, and host signals must follow the reference design. Do not treat a functional LAN9352-family ordering code as automatically drop-in compatible; the I, TI, and temperature-grade suffixes can change device features or qualification.
For an embedded two-port Ethernet design, the LAN9352/PT offers meaningful consolidation of switch and PHY functions. Selection depends on the required port count, host interface, timing, clock architecture, environmental grade, package, and production availability. This page combines verified distributor and manufacturer information with application guidance while leaving unverified electrical values explicitly marked for completion.
直接替换替代料： LAN9352/PT ——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： LAN9352/PT （相同外形与封装尺寸） ——差异在于 Package.
快速对比工具——选择替代料号进行并排对比：
LAN9352I/PT
✅ 直接替换📋 参考替代料（不在目录中）
LAN9352TI/PT
✅ 直接替换📋 参考替代料（不在目录中）
LAN9352/ML
✅ 直接替换✓ 有现货
$6.08 / 个
查看数据手册 →LAN9352TI/ML
✅ 直接替换📋 参考替代料（不在目录中）
LAN9352T/ML
✅ 直接替换📋 参考替代料（不在目录中）
LAN9352T/PT
✅ 直接替换📋 参考替代料（不在目录中）
LAN9352/PT 最大额定值与电气特性
| Product Type | 2-port managed Ethernet switch |
| Ethernet Port Count | 2 ports |
| 数据速率 | 10/100 Mbps per port |
| Ethernet Standards | 10/100 Base-T/TX |
| Integrated PHY | 10/100 Base-T/TX PHY |
| Host Interface 1 | I2C |
| Host Interface 2 | SPI |
| Non-PCI Interface | 16-bit non-PCI SPI/SQI interface |
| 封装 | 80-pin TQFP with exposed pad |
| Package Body Size | 12 x 12 mm |
| 安装类型 | Surface mount |
| Tray Packaging | 80-pin TQFP tray |
LAN9352/PT 12 x 12 mm 引脚配置指南
LAN9352/PT（12 x 12 mm 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： LAN9352/PT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
LAN9352/PT 适用于 6 应用s: Industrial Ethernet Gateway, Embedded Control Panel, Connected Consumer Product, Programmable Automation Controller, Networked Test Instrument, IoT Edge Gateway.
Industrial Ethernet Gateway
The LAN9352/PT fits an industrial gateway that needs two 10/100 Ethernet endpoints while keeping the host interface compact. One port can serve an upstream network and the other a local controller or service connection, depending on the network architecture. Its verified managed-switch function, integrated PHYs, and I2C or SPI connectivity reduce the number of separate interface devices. Because the exact temperature range and industrial qualification are not supplied, the enclosure and equipment specification must be checked before deployment.
推荐
Embedded Control Panel
A control panel can use the LAN9352/PT to connect a local operator network to an embedded controller while preserving host-side configuration through I2C or SPI. Its two 10/100 ports support a compact two-port network topology without requiring a separate physical-layer block for each port. The 80-pin TQFP exposed-pad package reduces board area compared with a larger discrete arrangement, although actual routing must follow the manufacturer land pattern and reference layout.
推荐
Connected Consumer Product
The LAN9352/PT is appropriate when a consumer appliance or smart product needs two fast Ethernet connections managed by a host processor. It can consolidate switch and PHY functions, potentially reducing component count and board space. The I2C interface supports low-pin-count management paths, while SPI may suit higher-throughput configuration workflows. Firmware drivers, network-magnetics arrangement, reset behavior, and environmental requirements must be verified before a production design is released.
推荐
Programmable Automation Controller
A programmable automation controller can use the two managed ports to connect a controller board to field equipment and an engineering workstation. The verified 10/100 capability is suitable for many control and supervisory networks where 100 Mbps links are adequate, while I2C or SPI host access allows firmware to initialize and configure the switch. Copper magnetics, isolation, surge protection, grounding, and enclosure requirements must be handled as part of the complete Ethernet design.
推荐
Networked Test Instrument
The LAN9352/PT can provide service and control networking in a test or measurement instrument that needs to expose two 10/100 connections. One link may connect the instrument to a laboratory network and the other to a fixture, remote interface, or internal controller. The integrated managed-switch architecture helps centralize network configuration through the host processor. For precision measurement equipment, separate analog and digital ground and power domains should be planned so Ethernet-switching activity does not degrade sensitive measurements.
推荐
IoT Edge Gateway
An IoT edge gateway can use the LAN9352/PT to aggregate two wired 10/100 connections into a host processor before forwarding data through another system interface. The verified managed-switch and integrated-PHY features suit compact embedded nodes where component count and board area matter. I2C or SPI management provides a path for configuration, but system designers must also address boot ordering, watchdog recovery, cable faults, environmental limits, and secure firmware updates in the surrounding design.
推荐
推荐产品汇总
工程参考数据： LAN9352/PT ——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 | LAN9352I/PT | LAN9352TI/PT | LAN9352/ML | LAN9352TI/ML | LAN9352T/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 80-pin TQFP exposed pad (12 x 12 mm) | 80-pin TQFP exposed pad (12 x 12 mm) | 80-pin TQFP exposed pad (12 x 12 mm) | 80-pin TQFP exposed pad (12 x 12 mm) | 80-pin TQFP exposed pad (12 x 12 mm) | 80-pin TQFP exposed pad (12 x 12 mm) |
| Ethernet Port Count | 2 ports | 2 ports | 2 ports | 2 ports | 2 ports | 2 ports |
| Management Architecture | Managed 2-port switch | Managed 2-port LAN9352-family switch | Managed 2-port Ethernet switch | LAN9352-family switch | LAN9352-family switch | LAN9352-family switch |
关键差异点
- Two integrated 10/100 ports in one managed device （对比 LAN9352I/PT)
- Verified I2C and SPI host connectivity （对比 LAN9352TI/PT)
- Compact 80-pin exposed-pad integration （对比 LAN9352/ML)
- Embedded-focused managed switching （对比 KSZ8001LI)
- Potential component consolidation （对比 W5100)
设计说明
Use the exact manufacturer 80-pin TQFP exposed-pad land pattern and place the Ethernet PHY-support network close to the device pins. The verified data identifies the package as 12 x 12 mm but does not provide pin functions or dimensions; do not derive routing from a generic TQFP footprint. Validate escape routing, thermal-pad soldering, copper keepouts, and via placement with the manufacturer PCB design guidance before release.
Confirm the LAN9352/PT supply voltage, tolerance, sequencing, and decoupling requirements from the manufacturer datasheet before designing the power tree. The supplied evidence confirms an Ethernet switch with integrated PHYs but does not state the core or I/O voltage. Apply separate local bypass paths and keep switching or high-current return currents out of sensitive analog and reference areas. Validate startup, reset, brownout, and shutdown behavior in the final firmware and hardware test plan.
Do not select a LAN9352-family replacement from the base device name alone. The cross-reference results list I, TI, T, ML, and PT ordering variants, but the supplied data does not establish that suffix changes preserve every electrical, clock, temperature, and firmware behavior. Compare the ordering table, pin descriptions, clock requirements, strap settings, exposed-pad connection, and package drawing for each exact MPN before approving a drop-in substitution.
Plan the host interface and PHY connections in separate functional regions. I2C and SPI management signals should be routed away from high-speed or high-current paths wherever practical, while the Ethernet differential pairs and their support components should follow the exact reference layout. Because pin-level routing data is absent from the verified excerpts, treat the application schematic and manufacturer layout guidance as mandatory rather than relying on package dimensions alone.
合规信息
The supplied verified data does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. Verify the exact ordering code with Microchip before regulated or automotive use.
