WIZ830MJ
WIZ830MJ

The WIZ830MJ is a high-performance Ethernet module based on the W5300 hardwired TCP/IP chip with integrated MAC and PHY.
It includes an onboard RJ45 (MAG-JACK) and necessary interface logic, allowing developers to rapidly add Ethernet functionality to embedded systems.
Designed for easy integration via a 16/8-bit parallel MCU BUS interface, WIZ830MJ offers outstanding throughput and stability for industrial applications.
Pin Information
- All Pins

J1
Pin | Type | Name | Description |
---|---|---|---|
1 | P | 3V3D | 3.3 V Power |
2 | I/O | D15 | BUS : Data Bit 15 |
3 | I/O | D14 | BUS : Data Bit 14 |
4 | I/O | D13 | BUS : Data Bit 13 |
5 | I/O | D12 | BUS : Data Bit 12 |
6 | I/O | D11 | BUS : Data Bit 11 |
7 | I/O | D10 | BUS : Data Bit 10 |
8 | I/O | D9 | BUS : Data Bit 9 |
9 | I/O | D8 | BUS : Data Bit 8 |
10 | I/O | D7 | BUS : Data Bit 7 |
11 | I/O | D6 | BUS : Data Bit 6 |
12 | I/O | D5 | BUS : Data Bit 5 |
13 | I/O | D4 | BUS : Data Bit 4 |
14 | I/O | D3 | BUS : Data Bit 3 |
15 | I/O | D2 | BUS : Data Bit 2 |
16 | I/O | D1 | BUS : Data Bit 1 |
17 | I/O | D0 | BUS : Data Bit 0 |
18 | P | GND | Ground |
19 | I/O | A9 | BUS : Address line A9 |
20 | I/O | A8 | BUS : Address line A8 |
21 | I/O | A7 | BUS : Address line A7 |
22 | I/O | A6 | BUS : Address line A6 |
23 | I/O | A5 | BUS : Address line A5 |
24 | I/O | A4 | BUS : Address line A4 |
25 | I/O | A3 | BUS : Address line A3 |
26 | I/O | A2 | BUS : Address line A2 |
27 | I/O | A1 | BUS : Address line A1 |
28 | I/O | A0 | BUS : Address line A0 |
J2
Pin | Type | Name | Description |
---|---|---|---|
1 | P | 3V3D | 3.3 V Power |
2 | I | BIT16_EN | 16/8 bit data bus select High : 16 bit data bus Low : 8 bit data bus |
3 | O | /LINKLED | Link status LED (active low) |
4 | O | /TXLED | Transmit activity LED (active low) |
5 | O | /RXLED | Receive activity LED (active low) |
6 | O | /COLLED | Collision LED (active low) |
7 | O | /FDXLED | Full duplex LED (active low) |
8 | O | /SPDLED | Speed status LED (active low) |
9 | O | /ACTLED | Link/activity LED (active low) |
10 | P | GND | Ground |
11 | O | BRDY3 | Bus Ready 3 signal |
12 | O | BRDY2 | Bus Ready 2 signal |
13 | O | BRDY1 | Bus Ready 1 signal |
14 | O | BRDY0 | Bus Ready 0 signal |
15 | P | GND | Ground |
16 | P | GND | Ground |
17 | I | /RESET | Hardware reset input (active low) |
18 | O | /INT | Interrupt output (active low) |
19 | I | /CS | Chip select input (active low) |
20 | I | /RD | Read strobe input (active low) |
21 | I | /WR | Write strobe input (active low) |
22 | — | NC | No connect |
23 | P | GND | Ground |
24 | P | GND | Ground |
25 | — | NC | No connect |
26 | — | NC | No connect |
27 | — | NC | No connect |
28 | — | NC | No connect |
Features
- Plug-in network module integrating W5300 hardwired TCP/IP chip, transformer, and RJ45 MAG-JACK
- No external hardware design required for PHY or transformer
- 16/8-bit MCU parallel BUS interface for high data throughput
- Supports 8 independent hardware sockets
- Provides up to 128 KB internal TX/RX buffer memory
- Two PCB through-holes for secure mounting (Ø 3.00 mm)
- Operating temperature: −40 °C to +85 °C
- Ideal for high-performance Ethernet applications
Electrical Characteristics
- DC Characteristics
- Power Dissipation
Symbol | Parameter | Min | Typ | Max | Unit |
---|---|---|---|---|---|
VDD | Supply voltage | 2.97 | 3.3 | 3.6 | V |
VIH | High-level input voltage | 2.0 | – | 5.5 | V |
VIL | Low-level input voltage | –0.3 | – | 0.8 | V |
VOH | High-level output voltage | 2.4 | 3.3 | – | V |
VOL | Low-level output voltage | 0.0 | – | 0.4 | V |
IDD | Operating current VCC 3.3V (Normal) | – | 180 | 250 | mA |
Symbol | Parameter | Min | Typ | Max | Unit |
---|---|---|---|---|---|
PIA | using the auto-negotiation of internal PHY mode | - | 180 | 250 | mA |
PIM | using manual configuration of internal PHY mode | - | 175 | 210 | mA |
PE | using external PHY mode | - | 65 | 150 | mA |
Condition : Vcc 3.3V, Temperature 25°C
Documentation
Title | Description | Link |
---|---|---|
Datasheet | Technical specifications and interface details for WIZ830MJ |
Software Resources
- Driver
Driver
Resource | Description |
---|---|
Official WIZnet driver library supporting W5300 and other hardwired TCP/IP chips | |
AX1 Loopback Test Program (install version) |
Note: The ioLibrary_Driver provides TCP/IP stack, DHCP, DNS, and other Internet protocols
for WIZnet’s W5x00/W5300 series. It is MCU-independent and supports embedded Ethernet applications.
Hardware Resources
Title | Revision | Description | Download | Notes |
---|---|---|---|---|
schematic & Partlist | 1.1 | Circuit diagram and BOM for hardware reference | — |
Mechanical Information


Symbols | Dimensions (mm) |
---|---|
A | 34.00 |
B | 30.48 |
C | 25.40 |
D | 3.40 |
E | 4.00 |
F | 50.00 |
G | 3.30 |
H | 6.50 |
I | 2.54 |
J | 2.54 |
K | 15.90 |
L | 13.50 |
M | 6.00 |
- Form factor: Plug-in ioModule with RJ45 MAG-JACK
- Pin pitch: 2.54 mm
- Mounting holes: Ø 3.00 mm × 2
Related Products
Product | Description |
---|---|
W5300 Chip | High-performance hardwired TCP/IP Ethernet controller with 16-bit parallel interface |