ENC28J60-I/ML - 10BASE-T Ethernet Controller | Microchip
料号： ENC28J60-I/ML ✓ 量产中ENC28J60-I/ML 概述
An Ethernet controller is a semiconductor that manages packet transmission and reception between a host processor and an Ethernet physical layer. The ENC28J60 belongs to the stand-alone Ethernet controller category rather than a conventional high-speed Ethernet MAC IC. Its integrated 10BASE-T PHY connects directly to 10BASE-T network hardware, while the SPI interface allows a microcontroller or other SPI host to access registers and packet buffers.
Key features include IEEE 802.3-compatible 10BASE-T operation, an integrated MAC and PHY, 8 Kbytes of transmit and receive packet buffer memory, and a compact 28-QFN package. The SPI interface provides a straightforward connection to embedded processors, while the integrated PHY reduces the number of active components needed for a basic Ethernet endpoint. The 6 mm by 6 mm package also supports space-constrained embedded equipment.
The ENC28J60-I/ML is intended for low-speed 10BASE-T networks rather than Fast Ethernet designs. Its architecture is appropriate when low network throughput, low component count, and a simple host interface are more important than 100BASE-TX performance. The ENC28J60 supports 8 Kbytes of buffer RAM for packet handling, while the SPI host controls the device through its command and register set.
Typical applications include embedded Ethernet bridges, industrial monitoring equipment, access-control systems, building automation nodes, laboratory instruments, and small network-connected controllers. These systems can use the integrated PHY to avoid a separate Ethernet transceiver while retaining a conventional SPI connection to a microcontroller.
A primary design consideration is the distinction between the 10BASE-T ENC28J60 and the 100BASE-TX ENC424J600. The ENC424J600 supports faster Ethernet but uses a different package and requires a different PCB layout. Designs should not treat those devices as footprint-compatible replacements. Confirm magnetics, RJ-45 integration, grounding, decoupling, and signal-integrity requirements in the manufacturer application guidance before releasing the layout.
直接替换替代料： ENC28J60-I/ML ——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： ENC28J60-I/ML （相同外形与封装尺寸） ——差异在于 Package, Data Rate, Device Type.
ENC28J60/ML
✅ 直接替换联系询价
查看数据手册 →ENC28J60T/ML
✅ 直接替换联系询价
查看数据手册 →ENC28J60T-I/ML
✅ 直接替换📋 参考替代料（不在目录中）
ENC28J60-I/ML 规格参数
| Device Type | 10BASE-T stand-alone Ethernet controller |
| Ethernet Standard | IEEE 802.3 |
| 数据速率 | 10 Mbit/s |
| Integrated Functions | MAC and PHY |
| Host Interface | SPI serial interface |
| Packet Buffer Memory | 8 Kbytes |
| 电源电压 | 3.1 V to 3.6 V |
| Nominal I/O Voltage | 3.3 V |
| 引脚数量 | 28 pins |
| 封装 | 28-QFN (6 mm x 6 mm) |
| 安装类型 | Surface mount |
| Temperature Grade | Industrial-grade -I |
ENC28J60-I/ML 28-qfn (6 mm x 6 mm) 引脚配置指南
ENC28J60-I/ML（28-qfn (6 mm x 6 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： ENC28J60-I/ML.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ENC28J60-I/ML 适用于 6 应用s: Industrial Monitoring Controller, Building Automation Node, Networked Access Control Unit, Laboratory Instrument Interface, IoT Sensor Gateway, Embedded Ethernet-to-SPI Bridge.
Industrial Monitoring Controller
The ENC28J60-I/ML fits industrial monitoring equipment that must report sensor measurements over 10BASE-T without requiring a separate Ethernet transceiver. Its integrated MAC and PHY reduce the number of components between the host processor and copper network, while the 28-QFN package measures 6 mm by 6 mm for compact controller boards. The industrial-grade -I ordering suffix is appropriate when specified by the system environmental plan. Because the link supports 10 Mbit/s, it is suitable for supervisory telemetry, alarm events, configuration updates, and periodic sensor data rather than continuous high-bandwidth transfers. The SPI interface allows a microcontroller to access packet memory and controller registers while the 8 Kbytes of buffer RAM support receive and transmit packet handling.
推荐
Building Automation Node
The ENC28J60-I/ML is appropriate for a compact building-automation node that communicates with a controller or supervisory system over 10BASE-T Ethernet. The integrated MAC and 10BASE-T PHY simplify the hardware path from the SPI host to the physical network, while the small 28-QFN footprint preserves board area for sensors and relay or lighting interfaces. A 10 Mbit/s link is more than adequate for room controllers, occupancy data, HVAC commands, and status updates. Design teams should confirm the operating-temperature limits in the manufacturer datasheet and preserve the ENC28J60 reference-layout guidance around the PHY, magnetics, and grounding. The -I variant is preferable when the enclosure environment exceeds the standard-grade operating range.
推荐
Networked Access Control Unit
The ENC28J60-I/ML can provide the Ethernet communication path for a low-cost access-control unit that sends credential events, door states, and audit records to a central server. Its integrated MAC and PHY eliminate a separate 10BASE-T transceiver, and its SPI interface is suitable for connecting the controller to a small embedded MCU. The 10 Mbit/s Ethernet rate is appropriate for sporadic access events and administrative traffic. The 6 mm by 6 mm 28-QFN package also leaves more board area available for relay drivers, credential-reader interfaces, and power supervision. Before production, evaluate the complete datasheet for supply current, temperature limits, reset behavior, and system timing, because those values were not included in the supplied verified excerpts.
推荐
Laboratory Instrument Interface
The ENC28J60-I/ML is useful for laboratory instruments that need basic Ethernet management or data exchange without a high-throughput Ethernet interface. Its SPI host connection supports integration with a test controller, while the integrated MAC and PHY reduce analog and high-speed isolation requirements around the network path. Typical traffic includes command exchange, status reporting, configuration downloads, and sampled measurement data. The 10BASE-T limit means instrument designers should avoid designs that stream large files continuously. The 28-QFN package is compact, but engineers must follow the manufacturer's land pattern and exposed-pad recommendations and provide appropriate Ethernet magnetics and RJ-45 protection. The industrial ordering suffix should be checked against the instrument's ambient-temperature specification.
推荐
IoT Sensor Gateway
The ENC28J60-I/ML can connect a small IoT sensor gateway to a 10 Mbit/s Ethernet backbone while avoiding a dedicated high-speed Ethernet controller. The SPI interface allows the gateway MCU to move packets through the ENC28J60's 8 Kbytes of buffer RAM, and the integrated 10BASE-T PHY reduces connector-board complexity. This arrangement suits aggregation nodes that combine several local sensors and periodically upload readings or accept configuration commands. It is less suitable for image or high-frequency sensor streaming because the Ethernet PHY operates at 10BASE-T. Layout should account for the small 6 mm by 6 mm package, maintain short return paths around the PHY, and follow the reference magnetic-network interface. Firmware must also handle the device through its documented SPI register and interrupt behavior.
推荐
Embedded Ethernet-to-SPI Bridge
The ENC28J60-I/ML is well matched to an embedded Ethernet-to-SPI bridge because its native host interface is SPI and its MAC and PHY are integrated. A microcontroller can use the bridge to terminate a 10BASE-T connection and exchange commands with sensors, actuators, or local peripherals. The 8 Kbytes of packet-buffer RAM provides a defined packet-handling resource, while the compact QFN package supports densely populated control boards. Application traffic must remain consistent with the 10 Mbit/s link, and the design should avoid assuming that the controller implements a complete TCP/IP stack. The manufacturer documentation and application guidance should define SPI clock limits, interrupt handling, buffer access, and reset procedures before the host firmware is committed.
推荐
推荐产品汇总
工程参考数据： ENC28J60-I/ML ——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 | ENC28J60/ML | ENC28J60T/ML | ENC28J60T-I/ML |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-QFN (6 mm x 6 mm) | 28-QFN (6 mm x 6 mm) - same package | 28-QFN (6 mm x 6 mm) - same package | 28-QFN (6 mm x 6 mm) - same package |
| Device Type | 10BASE-T stand-alone Ethernet controller | 10BASE-T stand-alone Ethernet controller | 10BASE-T stand-alone Ethernet controller | 10BASE-T stand-alone Ethernet controller |
| Data Rate | 10 Mbit/s | 10 Mbit/s | 10 Mbit/s | 10 Mbit/s |
| Integrated Functions | MAC and PHY | MAC and PHY | MAC and PHY | MAC and PHY |
| Packet Buffer Memory | 8 Kbytes | 8 Kbytes | 8 Kbytes | 8 Kbytes |
| Host Interface | SPI serial interface | SPI serial interface | SPI serial interface | SPI serial interface |
| Supply Voltage | 3.1 V to 3.6 V | 3.1 V to 3.6 V | 3.1 V to 3.6 V | 3.1 V to 3.6 V |
| Temperature Grade | Industrial-grade -I | Standard grade; exact limits require datasheet confirmation | T-grade ordering option; exact limits require datasheet confirmation | T-I grade ordering option; exact limits require datasheet confirmation |
关键差异点
- Integrated MAC and PHY （对比 ENC28J60/ML)
- Same-footprint temperature-grade options （对比 ENC28J60T/ML)
- Compact integrated Ethernet interface （对比 ENC28J60T-I/ML)
设计说明
Use the manufacturer's ENC28J60 layout and component-placement guidance for the 28-QFN footprint, exposed pad, supply connections, and PHY-to-magnetics path. The verified package is 6 mm by 6 mm, so pad and courtyard tolerances should be checked against the current package drawing rather than inferred from a generic 28-QFN library footprint. Keep the PHY and crystal-support component placement within the distances shown in the reference design.
Treat the Ethernet magnetics, RJ-45 connection, PHY traces, and protective network as one EMI-controlled subsystem. Follow the reference schematic and layout for the required magnetic components and separation rules, and provide a low-impedance chassis or shield path according to the enclosure and grounding design. Avoid routing sensitive analog or high-speed host signals alongside the PHY and magnetics region.
Do not assume that a device with an Ethernet PHY automatically supports a complete TCP/IP stack. The ENC28J60 provides Ethernet framing and packet-buffer functions, while host firmware or an external stack must implement the required higher-layer protocols. Also verify SPI mode, maximum SPI clock, interrupt polarity, reset timing, and buffer-management procedures against the manufacturer datasheet before finalizing firmware.
合规信息
The supplied excerpts identify an industrial-temperature ordering option but do not provide verified RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. ENC28J60-I/ML is an industrial interface IC rather than an automotive-qualified device, so AEC-Q100 is not applicable unless the manufacturer explicitly identifies a qualified variant.
