Special Features

【High Performance Ethernet Module】 ENC28J60 SPI interface; 10Mbps data rate; 16KB dual port SRAM; supports TCP/IP protocol stack; Suitable for embedded systems and IoT devices
【Robust Industrial Grade Design】 Wide version 56mm × 34mm; -40°C to +85°C operating range; HR911105A isolation transformer; low power consumption 120mA@3.3V; suitable for industrial Settings
【Easy Integration with Popular Platforms】 Compatible for for Arduino and for Raspberry Pi; SPI communication up to 25MHz; includes M3 mounting holes; simple setup with standard development boards
【Advanced Anti-Interference Features】 SCK/MOSI/MISO lines under 5cm; 10µH magnetic bead filtering; shielded wiring recommended; reduces signal noise for stable network performance
【Comprehensive Technical Support】 Includes detailed pinout and configuration guide; supports auto polarity correction; wake-up via Magic Packet; compatible with STM32 and AVR microcontrollers

Description

Product Parameters ( )

Core Chip: ENC28J60 (Microchip , Industrial Wide Temperature)

Operating Voltage: 3.1V ~ 3.6V DC (Requires external 3.3V LDO regulator from 5V source)

Communication Interface: SPI (Max. clock frequency 20MHz)

Network Standard: IEEE 802.3 10BASE-T (10Mbps rate)

Data Buffer: 8KB SRAM (Dual Port Packet Storage)

Network Interface: HR911105A integrated isolation transformer RJ45

Power Characteristics:

Working Current: 120mA @3.3V (peak)

Standby Current:

Operating Temperature: -40 ℃ ~ +85 ℃ (Reliable)

🔌 Main Pin Functions ( )

VCC: Power positive (3.3V±0.2V regulated source). Must use 100µF electrolytic + 0.1µF ceramic capacitor for filtering. Overvoltage >3.6V damages chip .

GND: Power ground. Must use common ground with MCU (wire length ≤3cm).

SCK: SPI clock input (≤20MHz). Keep wiring away from analog signals .

MOSI: Master data output to module. Use 33Ω series resistor to suppress ringing.

MISO: Module data return. Requires 10kΩ pull-up resistor if suspended.

CS: Chip select (active low). Do not ground when unused.

INT: Interrupt output (falling edge). Configure 10kΩ pull-up .

RESET: Hardware reset (low level ≥500ns valid) .

❓ Frequently Asked Questions

Q1: Module initialization fails?

A1: Ensure VCC ≥ 3.1V (measured) and current ≥150mA. Shorten SCK wire to ≤5cm and add shielding .

Q2: Ping test timeout?

A2: Use a crossover cable for direct PC connections. Verify RJ45 LED: green light = link OK, flashing = data transmission .