iMCU W7100A is the one-chip solution which integrates an 8051 compatible micro-controller, 64KB SRAM and hardwired TCP/IP core for high performance and easy development. The TCP/IP core is a market-proven hardwired TCP/IP stack with an integrated Ethernet MAC & PHY. The Hardwired TCP/IP stack supports the TCP, UDP, IPv4, ICMP, ARP, IGMP and PPPoE which has been used in various applications for years.

Key Features
  • Industrial standard 8051
  • Pipelined architecture 4~5 times faster than other 8051
  • 2 data pointers for fast memory block processing
  • 64KByte Flash, 64Kbyte SRAM, 2Kbyte Boot ROM, 255Byte Data Flash
  • External 11.0592MHz operation frequency for internal PLL logic
  • Interrupt Controller : 2 priority levels / 4 external interrupt sources / 1 watchdog interrupt
  • Four 8 bit I/O ports
  • Three timers/counters
  • Full Duplex UART
  • Programmable Watchdog Timer
  • Hardwired TCP/IP protocols
  • Un-attackable hardware network engine for preventing network attacks such as flooding, spoofing, injection
  • 8 Independent hardware socket
  • Internal 32Kbytes memory for TCP/IP packet processing
  • 10BaseT / 100Base TX Ethernet PHY Embedded
  • Support Auto-Negotiation (Full & Half Duplex, 10 & 100 Based)
  • Support Auto-MDIX
  • 3V Operation with 5V I/O signal tolerance
  • 100LQFP (13x13mm), 64QFN (10x10mm) Lead Free Package
Block Diagram

W7100A Datasheet V1.2.5

  • Last Update: 2016. 08.25

W7100A Chip Erratasheet v1.1.0

  • Last Update: 2012.09.18

Limitation Note – ARP problem in the NLB environment

  • Last Update: 2018.03.12

Comparison Sheet of W7100 & W7100A

  • Differences between W7100A and W7100_v1.1

W7100A Application Note (Docs & Sample Codes)

  • TCP, UDP, DHCP, DNS_Client, DDNS, HTTP_Server, HTTP_Client, Telnet, Serial to Ethernet, IPRAW, MACRAW, UART, Timer, LCD, I2C, Code Flash Programming, Data Flash Programming, External Memory, WDTimer
  • KEIL uVision 3 and 4 IDE Project
Drivers / Protocol Libraries

W7100A Driver 

  • W7100A/ W7100 Integrated Driver (updated on 2013.04.16)
  • Produced by KEIL uVision 4 IDE

WIZISP & Programming Guide

  • Last Update: 2012.11.26
  • Version : 2.1.