ENC28J60-I/SS Microchip Integrated Circuit (Small Outline Packages) In Stock
ENC28J60-I/SS is a Microchip stand-alone Ethernet controller with an SPI interface in a 28-pin SSOP package. It integrates a 10BASE-T MAC and PHY, 8 KB receive/transmit buffer, and supports up to 20 MHz SPI clock for easy connectivity on microcontroller-based designs. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- ENC28J60-I/SS Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.4000(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Integrated 10BASE-T MAC and PHY with 8 KB dual-port SRAM Ethernet frame buffer
- SPI interface up to 20 MHz with 1.25 Mbps maximum data transfer rate for easy MCU integration
- 28-pin SSOP package with on-chip voltage regulators reducing external component count
- Full and half-duplex operation with flow control and Wake-on-LAN support for low-power IoT designs
Applications
ENC28J60-I/SS enables 10BASE-T Ethernet connectivity on resource-constrained microcontrollers such as AVR, PIC, and ARM Cortex-M devices that lack on-chip Ethernet MAC. It is widely used in embedded web servers, industrial sensor gateways, and home automation hubs where a simple SPI bus connection replaces a dedicated Ethernet MCU variant. The 8 KB on-chip buffer and integrated PHY reduce BOM cost in low-volume IoT and prototyping designs.
Specifications
| Manufacturer Package Code | SSOP-28 |
| Factory Lead Time | 5Weeks |
| YTEOL | 8 |
| Boundary Scan | NO |
| Bus Compatibility | SPI |
| Clock Frequency-Max | 25MHz |
| Communication Protocol | SYNC, BYTE |
| Data Transfer Rate-Max | 1.25MBps |
| JESD-30 Code | R-PDSO-G28 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of Serial I/Os | 1 |
| On Chip Data RAM Width | 8 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SSOP28,.3 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (words) | 8192 |
| Screening Level | TS 16949 |
| Supply Current-Max | 180mA |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 3.1V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| uPs/uCs/Peripheral ICs Type | SERIAL IO/COMMUNICATION CONTROLLER, LAN |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What SPI clock speed does ENC28J60-I/SS support and how does that constrain packet throughput?
ENC28J60-I/SS supports SPI clock frequencies up to 20 MHz, yielding a maximum data transfer rate of 1.25 Mbps from MCU to Ethernet buffer. Since 10BASE-T operates at 10 Mbps on the wire, the SPI bus is the bandwidth bottleneck for back-to-back packet bursts, though it is sufficient for typical embedded web server, MQTT, and sensor reporting workloads at modest packet rates.
How much receive and transmit buffer does ENC28J60-I/SS provide, and does it support multiple receive filters?
ENC28J60-I/SS integrates 8 KB of dual-port SRAM shared between receive and transmit frames, with software-configurable buffer pointers. It includes programmable receive filters for unicast, multicast, broadcast, and pattern-match filtering, allowing the host MCU to discard unwanted frames in hardware before they consume buffer space.
When should a designer choose ENC28J60-I/SS over a microcontroller with built-in Ethernet MAC such as STM32F407?
ENC28J60-I/SS is the cost-effective choice when the host MCU is already committed, adding 10BASE-T connectivity via a 4-wire SPI bus at roughly one-tenth the MCU cost difference versus upgrading to an Ethernet-capable MCU. For designs where TCP/IP stack memory is managed externally and bandwidth needs are below 1 Mbps average throughput, the 28-pin SSOP-28 device minimizes BOM complexity compared to switching MCU families.
Related Guides
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.8270 | $3.83 |
| 13+ | $3.5870 | $46.63 |
| 282+ | $3.4000 | $958.80 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”