• Fully hardwired network protocol for high speed required embedded system : up to 80Mbps at application layer
  • Ease of Use (Easy & Simple Control like memory)
  • Stable Data Communication

The W5300 chip is a Hardwired TCP/IP embedded Ethernet controller that enables easier internet connection for embedded systems that required high network performance.

W5300 suits users in need of stable internet connectivity best, using a single chip to implement TCP/IP Stack, 10/100 Ethernet MAC and PHY. Hardwired TCP/IP stack supports TCP, UDP, IPv4, ICMP, ARP, IGMP, and PPPoE, …, which has been proven through various applications over many years. W5300 uses a 128Kbytes internal buffer as its data communication memory.

By using W5300, users can implement the Ethernet application they need by using a simple socket program instead of handling a complex Ethernet Controller. It is possible to use 8 independent hardware sockets simultaneously. BUS (Direct & Indirect) is provided for easy integration with the external MCU. The W5300 supports max. 80Mbps network throughput.

  • Hardwired TCP/IP protocols : TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE
  • Un-attackable hardware network engine for preventing network attacks such as flooding, spoofing, injection
  • Host Interface : 8/16 bit Data Bus (Direct & Indirect Address Mode)
  • High Network Performance : Max 80Mbps (by DMA)
  • Support embedded OS driver : Linux (kernel 2.6.24)
  • 8 Independent hardware socket
  • Internal 128Kbytes memory for TCP/IP packet processing
  • Flexible memory allocation
  • 10BaseT / 100Base TX Ethernet PHY Embedded
  • Support Auto-Negotiation (Full & Half Duplex, 10 & 100 Based)
  • Support Auto-MDIX
  • 3.3V Operation with 5V I/O signal tolerance
  • LED outputs (TX, RX, full/half duplex, Collision link speed)
  • 100LQFP lead-free package (14x14mm)
Block Diagram
block diagram

W5300 Qualification Report

  • W5300 Temperature Test Report (High & Low Temperature
  • W5300 RoHS Report

W5300 Chip Datasheet v1.3.4

  • Last Update: 2019. 05.23

Comparison sheet of W5300 & W5100 (V 1.1)

  • Last Update: 2010.03.08

W5300 Chip Erratasheet v1.2.3

  • Last Update: 2015. 03. 19

Limitation Note – ARP problem in the NLB environment

  • Last Update: 2018.03.12

W5300 Application Note

  • How to test Internal Tx/Rx Memory
  • How to use PPPoE
Drivers / Protocol Libraries

W5300 ioLibrary (Driver) 

  • W5300 Driver Description
  • Driver for 8bit MCU (V1.2.5)
  • Driver for 16bit MCU (V1.2.6)
Hardware Design Guide

W5300 Reference Schematic

  • Last Update: 2010.02.10