ENC28J60T-I/SO 10BASE-T Ethernet Controller | Microchip Technology
MPN： ENC28J60T-I/SO ✓ 啟用中ENC28J60T-I/SO 概覽
An Ethernet controller is a semiconductor that manages frame transmission, reception, buffering, packet filtering, and physical-layer signaling. The ENC28J60 family combines the functions of an Ethernet MAC, a 10BASE-T PHY, and an SPI host interface into one device. This integration reduces the number of external components required on a controller-based product while preserving a standardized communication path to the host processor.
The ENC28J60T-I/SO supports IEEE 802.3-compatible Ethernet operation and provides programmable packet filtering, multicast filtering, programmable LED indication, a wake-up function, and power-on reset. Its 8 Kbytes of dual-port buffer SRAM helps the controller manage incoming and outgoing Ethernet packets while the host processor communicates over SPI. These features make the device suitable for small embedded platforms where a full-size network interface would add unnecessary board area and system complexity.
Typical applications include VoIP terminals, industrial automation equipment, building automation controllers, home-control products, security systems, and instrumentation. The SPI host interface allows the device to be connected to microcontrollers and other embedded processors that can configure the Ethernet controller through registers and interrupt or polling mechanisms. The integrated PHY also simplifies the Ethernet magnetics and connector arrangement when implemented according to the manufacturer’s reference design.
The 3.3 V supply requirement, 10BASE-T data rate, 28-SOIC package, and integrated MAC/PHY architecture should be checked against the host processor’s I/O voltage, SPI timing, Ethernet magnetics, and isolation requirements. Because the Ethernet controller includes sensitive analog and digital functions, follow the manufacturer’s recommended decoupling, grounding, trace-routing, and magnetics-layout guidance. The device is also limited to 10BASE-T operation, so it should not be treated as a drop-in solution for 100BASE-TX or gigabit Ethernet designs.
This page combines the manufacturer’s product description, distributor package information, electrical limits, application guidance, and drop-in replacement analysis to help engineers evaluate the ENC28J60T-I/SO before schematic capture and PCB layout.
直接替換替代品，適用於 ENC28J60T-I/SO — 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： ENC28J60T-I/SO （相同外形與佔位） — 差異在於 Package, Ethernet Standard, Host Interface, Operating Temperature Range, Buffer RAM.
ENC28J60-I/SO
✅ 直接替換聯絡詢價
查看資料表 →ENC28J60T/SO
✅ 直接替換聯絡詢價
查看資料表 →ENC28J60T-I/SS
✅ 直接替換聯絡詢價
查看資料表 →ENC28J60T-I/SO 規格
| Product Type | Stand-alone Ethernet controller |
| Ethernet Standard | IEEE 802.3 compatible |
| 資料速率 | 10 Mbit/s |
| PHY | Integrated 10BASE-T PHY |
| MAC | Integrated Ethernet MAC |
| Host Interface | SPI |
| Supply Voltage Range | 3.1 V to 3.6 V |
| 供應電流 | 160 mA |
| Packet Buffer SRAM | 8 Kbytes |
| Packet Filter | Programmable |
| Multicast Filtering | Supported |
| LED Indication | Programmable |
| Wake-Up Function | Supported |
| Power-On Reset | Supported |
| 腳位數 | 28 pins |
| 封裝 | 28-SOIC |
| 安裝類型 | Surface Mount |
ENC28J60T-I/SO 28-soic 腳位配置指南
ENC28J60T-I/SO（28-soic 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： ENC28J60T-I/SO.
請參閱 資料表 以查看完整腳位配置。
典型應用
ENC28J60T-I/SO 適用於 6 應用s: VoIP Network Endpoint, Industrial Automation Controller, Building Automation Gateway, Home Control and IoT Node, Security and Surveillance Terminal, Ethernet Instrumentation.
VoIP Network Endpoint
The ENC28J60T-I/SO suits compact VoIP endpoints that need 10BASE-T connectivity through an embedded SPI host processor. Its integrated MAC and 10BASE-T PHY reduce the number of external network-interface devices, while the 8 Kbytes packet buffer supports Ethernet frame handling in a small embedded design. The 3.1 V to 3.6 V operating range fits 3.3 V systems. Confirm SPI timing, interrupt behavior, Ethernet magnetics, and the device’s 10 Mbit/s throughput against the endpoint’s voice and packet-traffic requirements before finalizing the interface.
推薦
Industrial Automation Controller
For industrial automation equipment, the ENC28J60T-I/SO provides a compact 10BASE-T management or communication interface without requiring a separate Ethernet MAC or PHY. Its programmable packet filter and multicast filtering can reduce unwanted traffic reaching the host processor, while programmable LED indication supports local link and activity signaling. The 3.3 V supply and 10 Mbit/s rate are appropriate for configuration ports and supervisory networks. Confirm the exact temperature grade, electrical limits, isolation strategy, and industrial compliance requirements for the deployed equipment.
推薦
Building Automation Gateway
The ENC28J60T-I/SO can serve as a low-cost Ethernet interface for building automation controllers, room controllers, and environmental-monitoring gateways. The integrated MAC and PHY simplify the board-level network path, while the SPI host interface allows a microcontroller to manage configuration, diagnostics, and packet traffic. Its 8 Kbytes of buffer RAM is useful for intermittent supervisory traffic. Validate the required operating-temperature range, Ethernet magnetics implementation, cable surge environment, and long-term availability before deploying the controller in building equipment.
推薦
Home Control and IoT Node
A compact home-control node can use the ENC28J60T-I/SO to add wired Ethernet to a microcontroller-based product. The SPI connection keeps the host-side interface simple, and the integrated 10BASE-T PHY removes the need for a separate physical-layer device. Programmable filtering helps the host avoid unnecessary packet processing, while LED outputs can indicate link or activity status. Confirm that 10 Mbit/s is sufficient for the node, and use the manufacturer reference implementation for the Ethernet transformer, RJ45 arrangement, grounding, and high-impedance signal routing.
推薦
Security and Surveillance Terminal
The ENC28J60T-I/SO is appropriate for low-bandwidth security terminals that need a wired network path for status reporting, configuration, or event notification. The integrated MAC and 10BASE-T PHY support a straightforward Ethernet implementation, and the SPI host interface can be shared with sensors or local actuators. Its packet buffer should be checked against burst traffic and multimedia streaming needs; applications carrying video or sustained high-volume data may require a faster Ethernet controller. Verify temperature performance and network-isolation requirements for the installed location.
推薦
Ethernet Instrumentation
The ENC28J60T-I/SO can provide instrument-control and telemetry connectivity where a laboratory or industrial instrument already uses a microcontroller with SPI. The 3.3 V operating range, programmable packet filtering, and 8 Kbytes of Ethernet buffer support compact supervisory networking without a high-throughput network interface. Use the manufacturer reference design for the transformer and connector implementation, and carefully separate sensitive measurement grounds from Ethernet circuitry. Before selection, confirm that 10BASE-T throughput, latency, and environmental limits satisfy the measurement system requirements.
推薦
推薦產品摘要
工程參考資料，適用於 ENC28J60T-I/SO — 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 | ENC28J60-I/SO | ENC28J60T/SO | ENC28J60T-I/SS |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC | 28-SOIC - same | 28-SOIC - same | 28-SOIC target class; /SS normally denotes 28-SSOP - footprint verification required |
| Ethernet Speed | 10 Mbit/s | 10 Mbit/s | 10 Mbit/s | 10 Mbit/s |
| Ethernet Type | 10BASE-T | 10BASE-T | 10BASE-T | 10BASE-T |
| Host Interface | SPI | SPI | SPI | SPI |
| Packet Buffer SRAM | 8 Kbytes | 8 Kbytes | 8 Kbytes | 8 Kbytes |
| Integrated MAC | Yes | Yes | Yes | Yes |
| Packet Filtering | Programmable | Programmable | Programmable | Programmable |
主要差異化特點
- Integrated Ethernet interface reduces external component count (對比ENC28J60-I/SO)
- Same 10BASE-T network performance in the primary 28-SOIC alternative (對比ENC28J60T/SO)
- Single-chip Ethernet path supports compact embedded designs (對比ENC28J60T-I/SS)
設計說明
Route the ENC28J60T-I/SO Ethernet PHY section according to the manufacturer’s reference schematic and layout guidance. Keep the device-to-transformer and device-to-connector paths short, preserve the specified pair geometry where applicable, and provide a clean ground reference. The integrated PHY saves board area, but poor return-path continuity or mismatched routing can still degrade link reliability and electromagnetic performance.
Design the 3.3 V rail for the device’s stated 160 mA supply current plus host-interface and magnetics requirements. Place the required local bypass capacitors close to the supply and ground pins, using the values and layout specified by the manufacturer. Check startup current, cable insertion transients, and the operating voltage across 3.1 V to 3.6 V rather than assuming every 3.3 V rail can absorb the peak demand without margin.
Keep the SPI bus traces short and controlled, particularly when the host processor and Ethernet controller are on different boards. Use a continuous ground plane, avoid splits beneath the bus, and account for capacitance, clock polarity, and configured SPI mode in firmware. Ethernet signal routing and magnetics placement should remain physically separate from sensitive analog or high-speed host circuitry where practical.
Do not substitute a narrow SSOP package for the target 28-SOIC footprint without a PCB redesign, even when the ENC28J60 family shares the same core functions. Likewise, verify that an alternative retains the 3.1 V to 3.6 V supply range, 10BASE-T operation, SPI register compatibility, and required temperature grade. Confirm the complete pin description and package drawing in the manufacturer documentation before releasing a substitution to production.
合規資訊
Compliance attributes are not stated in the verified product information and must be confirmed using the current manufacturer documentation.
