Microchip Technology

ENC28J60-I/SO - 10BASE-T SPI Ethernet Controller | Microchip

부품 번호: ENC28J60-I/SO ✓ 활성
재고 있음 영업일 기준 1~3일 내 발송
3.1 V to 3.6 V Vdss 160 mA Id 28-pin SOIC Package 10BASE-T, 10 Mb/s Speed
문의하기 가격 문의
MOQ: 1 |
가격 업데이트: 2026-10-20
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ENC28J60-I/SO 개요

The Microchip Technology ENC28J60-I/SO is a 28-pin stand-alone 10BASE-T Ethernet controller with an integrated MAC, integrated 10BASE-T PHY, 8 KB packet-buffer SRAM, and an SPI serial interface. It operates from a 3.3 V supply, supports an IEEE 802.3-compatible Ethernet interface, and is packaged in a 28-pin SOIC. The device is intended for embedded systems that need a compact Ethernet endpoint without a separate Ethernet controller and PHY.

An Ethernet controller is an interface IC that connects a microcontroller or processor to a physical Ethernet network. The MAC manages Ethernet frames and access to the transmit/receive buffer, while the PHY handles the physical-layer signaling. The ENC28J60 combines these functions with an SPI host interface, making it part of the network-controller and interface-IC hierarchy rather than a general-purpose microcontroller.

Verified product information identifies an integrated MAC and PHY, 8 KB of buffer RAM, a 10BASE-T Ethernet interface, and SPI connectivity. The ENC28J60 is designed to operate with a 25 MHz parallel-resonance crystal connected between OSC1 and OSC2, as described in the manufacturer data sheet. A 3.1 V to 3.6 V supply range and -40°C to +85°C operating range are reported by the retrieved distributor data.

Typical uses include microcontroller-based monitoring equipment, industrial control modules, data loggers, laboratory instruments, IoT gateways, and embedded network bridges. The SPI host interface allows the host processor to configure the controller and transfer Ethernet frames, while the integrated PHY reduces the number of external network-interface components.

Designers should provide the required clock network, bypass capacitors, Ethernet magnetics, RJ45 connectivity, and a power supply that stays within the verified 3.1 V to 3.6 V range. Firmware must implement the network stack required by the application because the verified product description identifies the device as a controller with SPI rather than a device with an integrated TCP/IP stack.

드롭인 대체품: ENC28J60-I/SO — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: ENC28J60-I/SO (동일 폼 팩터 및 풋프린트) — 차이점: Buffer RAM, Ethernet Standard, Operating Temperature Range, Package, Product Type.

Microchip Technology
Buffer RAM: 8 KB
Ethernet Standard: 10BASE-T
Operating Temperature Range: 0°C to +70°C

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

ENC28J60/SP

✅ 드롭인
📦 28-pin SOIC
The supplied comparison identifies the same 28-pin SOIC family and 10BASE-T controller function; exact temperature and ordering-code differences are .

📋 참조 대체품 (카탈로그에 없음)

ENC28J60T-I/SO

✅ 드롭인
📦 28-pin SOIC
The supplied comparison identifies ENC28J60T-I/SO as a 28-pin SOIC 10Mbps 3.3V Ethernet controller; exact suffix-specific differences are .

📋 참조 대체품 (카탈로그에 없음)

ENC28J60-I/SS

✅ 드롭인
📦 28-pin SOIC
The supplied comparison describes ENC28J60-I/SS as a related ENC28J60 variant, but its package is identified as SSOP in the search excerpt; SOIC compatibility is .

📋 참조 대체품 (카탈로그에 없음)

ENC28J60-I/SO 사양

Product Type Stand-alone Ethernet controller with SPI interface
Ethernet Standard IEEE 802.3 compatible
Ethernet Speed 10BASE-T, 10 Mb/s
Integrated MAC Yes
Integrated PHY Yes, 10BASE-T PHY
Host Interface SPI serial interface
Buffer RAM 8 KB transmit/receive packet dual-port buffer SRAM
Supply Voltage Range 3.1 V to 3.6 V
공급 전류 160 mA
동작 온도 범위 -40°C to +85°C
Oscillator Frequency 25 MHz
Crystal Type Parallel-resonance crystal
패키지 28-pin SOIC
핀 수 28 pins
실장 유형 Surface mount
Product Description 10BASE-T Ethernet controller with integrated MAC and PHY

ENC28J60-I/SO 28-pin soic 핀 구성 가이드

ENC28J60-I/SO(28-pin soic 패키지)의 핀 구성입니다. 핀 번호, 기능, 연결 다이어그램은 제조사 데이터시트에 정의되어 있습니다. 정확한 풋프린트와 솔더링 지침은 해당 문서를 참조하십시오.

ENC28J60-I/SO의 28-pin soic 패키지 핀아웃 다이어그램

다음에 대한 상세 핀아웃 데이터 없음: ENC28J60-I/SO.

다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.

일반적인 애플리케이션

ENC28J60-I/SO 적합 용도: 6 애플리케이션s: Industrial Monitoring Gateway, IoT Sensor Hub, Laboratory Data Logger, Embedded Test and Measurement Equipment, Building Automation Controller, Compact Network-to-Serial Bridge.

🏭

Industrial Monitoring Gateway

The ENC28J60-I/SO fits industrial monitoring gateways that need a compact 10 Mb/s Ethernet endpoint without a separate MAC or PHY. Its integrated MAC and PHY, 8 KB packet-buffer SRAM, and SPI interface keep the host-side connection simple while the controller handles Ethernet framing. The verified -40°C to +85°C range is useful for equipment operating across industrial temperature conditions, although the enclosure, Ethernet isolation, surge protection, and regulatory testing remain system-level requirements. The host processor must provide the required network firmware.

🧩

IoT Sensor Hub

The ENC28J60-I/SO is suitable for IoT sensor hubs that aggregate local measurements and expose them over a wired 10BASE-T network. Its 3.1 V to 3.6 V operating range aligns with many embedded 3.3 V systems, while SPI allows a microcontroller to connect without a parallel bus. The integrated PHY reduces board-level network-interface complexity, and 8 KB of buffer RAM supports packet buffering for burst traffic. The design must still include Ethernet magnetics, RJ45 connectivity, suitable clock components, and host-side networking software.

🖥️

Laboratory Data Logger

For laboratory instruments and data loggers, the ENC28J60-I/SO provides a compact Ethernet path for transferring measurement records to a host computer. The 10 Mb/s rate is generally appropriate for configuration, status, and moderate data files, while the integrated MAC and PHY reduce the number of external interface components. Its SPI host connection is convenient for microcontrollers with limited pin counts. Use a stable 25 MHz clock arrangement and a carefully designed Ethernet front end to preserve data integrity and minimize packet loss.

🔧

Embedded Test and Measurement Equipment

The ENC28J60-I/SO can add network access to embedded test and measurement equipment where a full Fast Ethernet PHY is unnecessary. Its integrated 10BASE-T PHY and MAC are useful when an instrument needs remote control, status reporting, or configuration transfer over a wired network. The 3.3 V supply domain and SPI interface support compact embedded platforms, but designers should account for grounding, isolation, connector mechanics, and electromagnetic compatibility. Verify the manufacturer’s layout guidance before routing Ethernet signals.

🏭

Building Automation Controller

The ENC28J60-I/SO is appropriate for building-automation controllers that distribute sensor, actuator, and diagnostic information over a wired Ethernet segment. The integrated controller and PHY simplify the network endpoint, while 8 KB of packet RAM provides a dedicated transmit/receive buffer. The verified industrial temperature range supports equipment in controlled environments, but building systems may require isolation, surge protection, cable fault handling, and regulatory compliance beyond the IC itself. Firmware selection is important because the ENC28J60 does not present itself as a TCP/IP-offload device.

🌐

Compact Network-to-Serial Bridge

The ENC28J60-I/SO can serve as the Ethernet side of a compact network-to-serial bridge built around a microcontroller. SPI transfers frames between the Ethernet controller and the host, allowing legacy serial equipment to receive commands or report data over Ethernet. Its 10 Mb/s capability is sufficient for supervisory traffic and many control messages, while the integrated PHY reduces the external component count. The bridge should include host-side packet processing, Ethernet magnetics, RJ45 protection, and a defined recovery strategy for cable or network faults.

What is the Microchip ENC28J60-I/SO?
The Microchip Technology ENC28J60-I/SO is a 28-pin stand-alone 10BASE-T Ethernet controller with an integrated MAC, integrated PHY, 8 KB of packet-buffer RAM, and an SPI interface. According to the Microchip product page and manufacturer data sheet, it is designed for compact embedded Ethernet designs and operates with a 3.3 V-class supply. The verified distributor data identifies the package as 28-pin SOIC and the supported Ethernet mode as 10BASE-T.
What are the key specifications of ENC28J60-I/SO?
The key ENC28J60-I/SO specifications are 10BASE-T Ethernet, integrated MAC and PHY, 8 KB packet-buffer SRAM, SPI host communication, a 3.1 V to 3.6 V supply range, and a 28-pin SOIC package. The retrieved operating-temperature data specifies -40°C to +85°C. According to the manufacturer data sheet, the oscillator is intended for a 25 MHz parallel-resonance crystal connected to OSC1 and OSC2.
Where can I download the ENC28J60-I/SO datasheet PDF?
You can download the official ENC28J60 data sheet from Microchip at https://ww1.microchip.com/downloads/en/DeviceDoc/39662e.pdf. The retrieved manufacturer document describes the oscillator, including use of a 25 MHz parallel-resonance crystal, and the product family is identified as a stand-alone Ethernet controller with an SPI interface. Use the manufacturer PDF for final pin, electrical, timing, and layout decisions.
Where can I find the ENC28J60-I/SO pinout?
The ENC28J60-I/SO pinout is documented in the official Microchip ENC28J60 data sheet rather than in the distributor listing. The device is a 28-pin SOIC, so the package drawing and pin table should be read together before PCB routing. The verified data confirms the 28-pin package and identifies OSC1 and OSC2 as the crystal connections, but individual pin names are not present in the supplied excerpts.
Is ENC28J60-I/SO in stock?
The verified DigiKey result states “Buy now, ships today” for ENC28J60-I/SO, indicating current distributor availability in the retrieved listing. Inventory changes rapidly, so confirm the quantity, lead time, and date code with the distributor before purchasing. The Mouser and DigiKey product pages also provide availability and pricing tools for the exact orderable MPN.
What is the price of ENC28J60-I/SO?
The supplied web results identify DigiKey, Mouser, and Octopart sources for ENC28J60-I/SO, but they do not include numeric unit prices or quantity-break pricing. Therefore, an exact price cannot be stated from the verified data. Check the distributor listing for the current price as of 2026-10-21, and compare authorized-channel pricing, stock, and minimum order quantity before selecting a supplier.
What is the lead time for ENC28J60-I/SO?
The supplied DigiKey snippet says the part can be bought and shipped today, but it does not provide a guaranteed lead-time value or backlog statement. Treat the listing as a point-in-time commercial indication as of 2026-10-21 rather than a production commitment. For a scheduled build, request written confirmation of quantity, packaging, date code, and delivery terms from the distributor.
Can ENC28J60-I/SO connect directly to a microcontroller?
Yes. The ENC28J60-I/SO is controlled through its SPI serial interface, allowing a compatible host microcontroller or processor to initialize the controller and transfer Ethernet frames. The interface does not remove the need for a suitable network stack in the host firmware; the verified product description identifies it as a controller, not as a device with an integrated TCP/IP stack. External Ethernet magnetics and RJ45 circuitry are also required in the physical network design.
Is ENC28J60-I/SO suitable for IoT and industrial monitoring?
Yes, ENC28J60-I/SO is suitable for compact IoT gateways, industrial monitoring modules, data loggers, and embedded controllers when 10 Mb/s Ethernet is sufficient. Its integrated MAC, integrated PHY, 8 KB buffer RAM, and SPI interface reduce the number of separate network-interface components. The verified -40°C to +85°C range supports many industrial environments, although enclosure, isolation, surge protection, and regulatory requirements still need separate design review.
What clock does ENC28J60-I/SO require?
The ENC28J60-I/SO is designed to operate with a 25 MHz crystal connected between OSC1 and OSC2. According to the Microchip data-sheet excerpt, the design specifically calls for a parallel-resonance crystal; a series-resonance crystal may produce a frequency outside the crystal manufacturer’s specifications. Use the oscillator values and load recommendations from the manufacturer data sheet when selecting the crystal and supporting capacitors.
What power supply does ENC28J60-I/SO need?
The verified distributor data specifies a 3.1 V to 3.6 V supply-voltage range and 160 mA supply current for ENC28J60-I/SO. The device therefore belongs to a 3.3 V embedded-processing supply domain rather than a direct 5 V Ethernet interface. Add local decoupling close to the supply pins and verify the complete system’s startup, noise, and Ethernet-magnetics requirements against the manufacturer data sheet.
ENC28J60-I/SO vs W5500: which is better for a new design?
ENC28J60-I/SO is the better match when the design specifically needs a compact 10BASE-T controller with an integrated MAC and PHY, 8 KB packet RAM, and an SPI host interface. The supplied comparison information describes W5500 as a different SPI Ethernet architecture, including hardwired TCP/IP support, so software migration and driver requirements differ. Choose according to the required network speed, protocol offload, firmware resources, and existing board footprint rather than treating the devices as interchangeable.
ENC28J60-I/SO vs DM9051: can DM9051 replace it?
DM9051 should not be treated as a drop-in replacement for ENC28J60-I/SO. The supplied cross-reference information describes DM9051 as a functional alternative with 10/100M capability and 16 KB SRAM, while also stating that its pinout and driver differ. Although both devices use an SPI-oriented Ethernet-controller concept, software, package, and hardware changes are required. Treat DM9051 as a design-in alternative, not a pin-compatible replacement.
What is the best replacement for ENC28J60-I/SO?
No verified same-package, pin-compatible replacement for ENC28J60-I/SO was established by the supplied cross-reference results. The search identifies ENC28J60 package variants and functional alternatives such as DM9051, W5500, and ENC424J600, but the available excerpts do not prove identical pin compatibility and electrical equivalence in the 28-pin SOIC package. Do not substitute without verifying the manufacturer pinout, supply voltage, clock requirements, PHY interface, and firmware.
Is ENC28J60-I/SO the same as ENC28J60T-I/SS?
No. ENC28J60-I/SO and ENC28J60T-I/SS are not the same package variant. The verified comparison excerpt identifies ENC28J60-I/SO as a 28-pin SOIC Ethernet controller, while the ENC28J60T-I/SS listing identifies a 28-pin SSOP package. Even if both are ENC28J60-family devices, changing from SOIC to SSOP requires footprint and pin-layout verification rather than a no-change substitution.
Does ENC28J60-I/SO include a TCP/IP stack?
The supplied product information describes the ENC28J60-I/SO as a stand-alone Ethernet controller with an SPI serial interface, integrated MAC and PHY, and packet-buffer RAM. It does not identify an integrated TCP/IP stack. Applications therefore need host-side firmware for the required protocol behavior, subject to the controller’s supported Ethernet functions and the developer’s network-stack implementation.
How should ENC28J60-I/SO be used in a new Ethernet board?
Use the ENC28J60-I/SO between the host microcontroller and the Ethernet physical network: connect the host through SPI, provide the 25 MHz crystal arrangement, supply 3.1 V to 3.6 V power, and implement the required Ethernet magnetics and RJ85 connection. Route sensitive Ethernet signals according to the manufacturer reference guidance, keep decoupling close to the device, and validate firmware timing and packet-buffer behavior. The exact component values and layout should come from the official data sheet.

엔지니어링 참조 데이터: ENC28J60-I/SO — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose ENC28J60-I/SO when the design needs a compact 10BASE-T Ethernet controller with an integrated MAC and PHY, SPI host connectivity, and an 8 KB packet buffer. It is appropriate for 3.3 V embedded systems where 10 Mb/s is sufficient and host firmware can implement the required network behavior. ENC28J60T-I/SO may be considered only after verifying its exact ordering code and pin-level data; ENC28J60-I/SS requires package verification because the supplied excerpt identifies it as SSOP. W5500 or DM9051 should be treated as redesign alternatives rather than drop-in parts because the supplied comparisons describe different network architectures, packages, drivers, or protocol capabilities.

대체품과의 비교

파라미터 이 제품 ENC28J60/SP ENC28J60T-I/SO ENC28J60-I/SS
Package 28-pin SOIC 28-pin SOIC 28-pin SOIC Package identity requires verification
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology

주요 차별점

  • Integrated network-interface functions (vs DM9051)
  • Compact 28-pin SOIC option (vs ENC28J60-I/SS)
  • SPI-based embedded Ethernet integration (vs W5500)

설계 노트

Design the ENC28J60-I/SO supply rail within the verified 3.1 V to 3.6 V range. The retrieved distributor data lists 160 mA supply current, but that value should not be treated as a complete worst-case system budget until the manufacturer’s operating conditions and Ethernet-drive requirements are checked. Place bypass capacitors close to the device supply pins and account for startup current from the Ethernet magnetics and attached cable.

Use the manufacturer’s recommended Ethernet layout rather than treating the PHY as a generic digital chip. Keep the 25 MHz crystal and its load components close to OSC1 and OSC2, route the Ethernet differential pair as a controlled impedance path, and provide the required Ethernet magnetics and RJ45 protection. The supplied data confirms the clock requirement and integrated PHY, but component values and exact routing dimensions must be taken from the official data sheet.

Do not substitute a 5 V-only Ethernet front end or assume that a related ENC28J60 order code is automatically drop-in compatible. The verified target is a 3.1 V to 3.6 V, 28-pin SOIC device, and the supplied cross-reference results show related SOIC, SSOP, and SSOP variants. Confirm pin names, package dimensions, temperature grade, oscillator arrangement, and firmware expectations before releasing a replacement to production.

Keep the controller’s thermal environment within the verified -40°C to +85°C operating range and provide copper area appropriate to the SOIC footprint. The supplied data does not provide a verified thermal resistance or power-dissipation curve, so do not invent a junction-temperature estimate. Validate the assembled board across ambient temperature, Ethernet-cable insertion, and worst-case host activity using the manufacturer’s absolute-maximum and electrical-characteristic limits.

규정 준수 정보

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
무연
Unknown
무할로겐
Unknown
분쟁 광물
Unknown

The supplied verified product and distributor snippets do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. The Ethernet compatibility designation is IEEE 802.3 compatible, but that statement is not a component environmental-compliance claim.

데이터 검증일: 2026-10-21 — XAIPART 부품 엔지니어링 팀이 검증하고 관리한 데이터

관련 검색

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관련 부품 & 용어

Microchip Technology ENC28J60-I/SO ENC28J60 Ethernet controller network interface controller MAC PHY 10BASE-T IEEE 802.3 SPI embedded Ethernet packet buffer SRAM 8 KB RAM 3.3 V power supply 25 MHz crystal parallel-resonance crystal 28-pin SOIC surface-mount package RJ45 Ethernet magnetics industrial monitoring IoT sensor hub laboratory data logger building automation network-to-serial bridge W5500 DM9051 ENC28J60T-I/SO ENC28J60-I/SS RoHS REACH
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