IOP (Internet Offload Processor) W7500은 특히 “사물인터넷”을 요구하는 다양한 임베디드 어플리케이션 플랫폼을 위해 ARM Cortex-M0, 128KB 플래시, Hardwired TCP/IP 코어 와 PHY 등이 하나의 칩에 통합되어 있습니다. TCP/IP 코어는 통합된 이더넷 MAC을 포함한 마켓에서 증명된 Hardwired TCP/IP 스택 입니다. 이 Hardwired TCP/IP 스택은 수많은 어플리케이션에 오랜 기간 걸쳐 사용되어 오고 있으며 TCP, UDP, IPv4, ICMP, ARP, AGMP, PPPoE 등을 지원합니다. W7500은 인터넷 연결을 필요로 하는 어플리케이션 사용할 수 있도록 특별히 최적화된 제품입니다.

제품 특징
ARM Cortex-M0

  • 48MHz maximum frequency

Hardwired TCP/IP Core

  • 8 Sockets
  • SRAM for socket: Max. 32KB
  • MII (Medium-Independent Interface)


  • IC Plus (IP101G)


  • Flash: 128 KB
  • SRAM: 16KB to 48 KB ( Min 16KB available if 32KB socket buffer is used, Max 48KB available if no socket buffer is used)
  • ROM for boot code: 6KB

Clock, reset and supply management

  • POR (Power-On Reset)
  • Internal Voltage Regulator : 3.3V to 1.5V
  • 8-to-24MHz external crystal oscillator
  • Internal 8MHz RC Oscillator
  • PLL for CPU clock


  •  12bit, 8ch, 1Msps


  • 6-channel DMA controller
  • Peripheral supported: UARTs, SPIs


  • 34 I/Os (15 IO x 2ea, 4 IO x 1ea)

Debug mode

  • Serial Wire Debug (SWD)


  • 1 Watchdog (32-bit down-counter)
  • 4 Timers (32-bit or 16-bit down-counter)
  • 8 PWMs (32-bit counter/timers with programmable 6-bit prescaler)

Communication Interfaces

  • 3 UART (2 UARTs with FIFO and Flow Control, 1 simple UART)
  • 2 SPI
  • 2 I2C (Master/Slave, Fast-mode (400 kbps))


  • 1 RNG (Random Number Generator): 32-bit random number

Package : 64 TQFP (7×7 mm)

Evaluation Board
  • WIZwiki-W7500P
Technical Materials in WIZwiki

Technical Support

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Block Diagram

W7500P Datasheet  

  • You can download the latest version of W7500 Datasheet

W7500 Reference Manual 

  • You can download the latest version of W7500 Reference Manual

W7500 Application Note

  • How to install KEIL
  • How to make KEIL new project for W7500P
  • How to use MDK for W7500P Peripheral Examples
  • How to use GCC for W7500 Peripheral Examples

Limitation Note – ARP problem in the NLB environment

  • Last Update: 2018.03.12
Library & Peripheral Examples

W7500 Library & Peripheral Example The W7500 provides the CMSIS driver and Peripheral example. The W7500 Standard Peripherals library provides a rich set of examples covering the main features of each peripheral. Only source files are provided for each example and user can tailor the provided project template to run the selected example with his preferred tool-chain.

Hardware Design Guide

WIZwiki-W7500 Schematic

  • You can get the latest version of the WIZwiki-W7500 board
  • PDF & Altium Designer