ENC28J60/SS - 10Mbps SPI Ethernet Controller | Microchip
MPN: ENC28J60/SS ✓ نشطENC28J60/SS نظرة عامة
What is a stand-alone Ethernet controller? It is an Ethernet interface integrated circuit that connects a host microcontroller or processor to a physical Ethernet network. The ENC28J60/SS combines MAC and PHY functions with packet buffering, while the host communicates through SPI rather than a parallel bus. Its 10 Mbps 10BASE-T capability makes it suitable for legacy and low-bandwidth embedded networks, especially where board area and system cost are important.
Key verified features include 10 Mbps Ethernet operation, integrated MAC and PHY, 8 KB of buffer RAM, SPI interface, a 28-pin SSOP package, and a 3.1 V to 3.6 V supply range. The controller is designed to reduce host-side interface complexity and can be used in systems where the connected host already has sufficient processing capacity for the required networking software.
The ENC28J60/SS includes the MAC and PHY in one package, allowing an embedded system to implement Ethernet communication without a separate external Ethernet PHY. Its buffer RAM supports packet handling between the SPI host interface and the Ethernet physical layer. The manufacturer product page identifies it as a 28-pin 10BASE-T stand-alone Ethernet controller with 8 Kbytes of buffer RAM.
Typical applications include embedded control systems, industrial automation equipment, data loggers, building automation controllers, network-connected sensors, and microcontroller platforms requiring 10BASE-T connectivity. The SPI interface allows the device to be paired with host controllers such as STM32, ATmega, PIC, or other embedded processors that provide the required firmware.
When designing around the ENC28J60/SS, confirm the 3.1 V to 3.6 V operating supply, use the manufacturer-recommended 25 MHz parallel-resonance crystal arrangement, and provide the required magnetic-interface and Ethernet physical-layer components. Verify the exact SSOP footprint, pin assignment, thermal conditions, and host timing requirements against the manufacturer datasheet before layout release.
بدائل مباشرة لـ ENC28J60/SS — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع ENC28J60/SS (نفس عامل الشكل والبصمة) — يختلف في Package, Buffer RAM, Product Type, Ethernet Standard, Crystal Type.
ENC28J60-I/SS
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ENC28J60/ML
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ENC28J60T-I/SO
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
ENC28J60/SO
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ENC28J60-I/SO
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ENC28J60/SS المواصفات
| Product Type | Stand-alone Ethernet controller |
| Ethernet Data Rate | 10 Mbps |
| Ethernet Standard | 10BASE-T |
| Supply Voltage Range | 3.1 V to 3.6 V |
| نوع الواجهة | SPI serial interface |
| Integrated Functions | MAC and PHY |
| Buffer RAM | 8 KB |
| عدد الدبابيس | 28 pins |
| العلبة | 28-pin SSOP |
| نطاق درجة حرارة التشغيل | 0°C to +70°C |
| تيار التغذية | 160 mA |
| Oscillator Frequency | 25 MHz |
| Oscillator Requirement | Parallel-resonance crystal |
| Ethernet Compliance | IEEE 802.3 |
دليل تكوين أطراف ENC28J60/SS 28-pin ssop
تكوين الأطراف لـ ENC28J60/SS (حزمة 28-pin ssop). يتم تعريف ترقيم الأطراف والوظائف ومخططات التوصيل في ورقة البيانات الفنية من الشركة المصنعة. راجعها للحصول على البصمة الدقيقة وإرشادات اللحام.
لا تتوفر بيانات مفصلة لمخطط التوصيلات لـ ENC28J60/SS.
راجع ورقة البيانات للحصول على تكوين الأطراف الكامل.
التطبيقات النموذجية
ENC28J60/SS مناسب لـ 6 التطبيقs: Embedded Data Logger, Building Automation Controller, Networked Sensor Node, Microcontroller Development Board, Industrial Control Gateway, Remote Equipment Monitor.
Embedded Data Logger
The ENC28J60/SS fits an embedded data logger that periodically sends records to a 10BASE-T network. Its 10 Mbps Ethernet rate is appropriate for supervisory traffic, configuration updates, and status reporting rather than high-throughput video or bulk storage transfer. The host controller can use SPI to access the integrated MAC and PHY while the 8 KB buffer RAM helps absorb packet traffic. Design the board with the manufacturer-recommended 25 MHz parallel-resonance crystal, network magnetics, controlled 3.3 V supply, and Ethernet layout guidance. The principal trade-off is the 10 Mbps ceiling, which should be checked against worst-case logging bursts and retransmission behavior.
موصى به
Building Automation Controller
ENC28J60/SS is suitable for building-automation equipment that must connect sensors, relays, and supervisory software over legacy 10BASE-T infrastructure. The integrated MAC and PHY reduce the number of external network components, while SPI keeps the host interface compact and broadly available on microcontrollers. The device should be paired with a host that can service Ethernet interrupts and run the required protocol stack. Because the verified ENC28J60/SS temperature range is 0°C to +70°C, confirm enclosure temperature and use a suitably qualified variant when environmental limits exceed that range.
موصى به
Networked Sensor Node
A compact sensor node can use ENC28J60/SS to add wired Ethernet without a separate PHY. The 10 Mbps 10BASE-T interface is useful for remote monitoring, environmental sensing, and industrial telemetry links where periodic packets are more common than continuous multimedia traffic. The host communicates through SPI and can buffer measurements or status information before transmission. Layout quality is especially important: maintain the manufacturer-recommended separation and routing around the Ethernet interface, provide proper termination and magnetics, and validate signal integrity and radiated emissions against the applicable product requirements.
موصى به
Microcontroller Development Board
ENC28J60/SS is a practical Ethernet add-on for SPI-capable microcontroller development boards. It provides a complete 10BASE-T endpoint for firmware experiments involving TCP/IP, UDP, DHCP, and remote control without requiring a full host Ethernet interface. The 28-pin SSOP package helps keep the interface compact, but the board must still include the required crystal network, isolation or magnetics, RJ45-related components, and power decoupling. Use the manufacturer pinout and reference circuit carefully because alternate SPI controllers and libraries may assume different chip-select, interrupt, reset, or timing conventions.
موصى به
Industrial Control Gateway
ENC28J60/SS can serve as a low-bandwidth Ethernet interface in an industrial control gateway that bridges local serial or sensor data to a supervisory network. Its integrated MAC, PHY, and 8 KB buffer RAM can simplify the hardware stack, while SPI provides a manageable connection to a microcontroller or application processor. The controller is best suited to command, telemetry, and configuration traffic; validate throughput and latency before using it for demanding factory data streams. Confirm the 3.1 V to 3.6 V supply tolerance and the 0°C to +70°C operating range against the gateway enclosure conditions.
موصى به
Remote Equipment Monitor
The ENC28J60/SS can add remote monitoring capability to pumps, access-control equipment, or laboratory instruments that need occasional Ethernet connectivity. Its 10 Mbps rate is sufficient for telemetry, alarms, configuration files, and web or serial-to-Ethernet bridging functions when traffic is modest. The 8 KB buffer RAM helps manage short packet bursts, but firmware must still handle buffer pressure and network recovery. Use a stable 3.3 V regulator, follow the manufacturer’s 25 MHz crystal guidance, and validate the RJ45 and magnetics implementation for the required isolation and environmental conditions.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ ENC28J60/SS — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | ENC28J60-I/SS | ENC28J60/ML | ENC28J60T-I/SO | ENC28J60/SO | ENC28J60-I/SO |
|---|---|---|---|---|---|---|
| Package | 28-pin SSOP | 28-pin SSOP | 28-pin SSOP | 28-pin SSOP | 28-pin SSOP | 28-pin SSOP |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
أبرز الفروقات
- Integrated MAC, PHY, and SPI host interface (مقابلENC28J60-I/SS)
- 10BASE-T operation at 10 Mbps (مقابلENC28J60-I/SS)
- 8 KB integrated buffer RAM (مقابلENC28J60-I/SS)
ملاحظات التصميم
Place the ENC28J60/SS crystal and its required load network close to OSC1 and OSC2, and follow the manufacturer oscillator circuit. The verified data specifically calls out a 25 MHz parallel-resonance crystal; using the wrong resonance mode or excessive trace loading can shift the Ethernet timing. Keep the crystal loop compact and route it away from noisy switching nodes and Ethernet magnetics.
Implement the Ethernet physical layer with the manufacturer-recommended magnetics, termination, and controlled-impedance routing. Keep the PHY differential and magnetics-related copper paths short, continuous, and isolated from high-current switching paths. Confirm the final layer stack, via strategy, and isolation requirements against the Microchip data sheet and the selected network magnetics before fabrication.
Design the 3.3 V rail to stay within the verified 3.1 V to 3.6 V supply range during startup, Ethernet activity, and temperature changes. Place local decoupling near the supply pins and verify regulator stability, transient response, and startup sequencing. Because the verified list shows 160 mA supply current, include adequate regulator margin and confirm the actual current from the manufacturer data sheet for the selected operating mode.
Do not assume that any SPI Ethernet controller is a drop-in replacement. ENC28J60/SS relies on a specific pin assignment, SPI mode and timing, interrupt behavior, reset requirements, crystal arrangement, and host-side firmware contract. Validate the alternate device's pinout, electrical ratings, driver compatibility, and Ethernet physical-layer requirements before substituting it on an existing PCB.
معلومات الامتثال
The supplied data identifies IEEE 802.3 Ethernet compliance but does not provide verified RoHS, REACH, lead-free, halogen-free, conflict-minerals, or AEC-Q100 status.