Datasheet

Datasheet [Page 5]
EMW3166
1. Introduction
EMW3166 is one embedded Wi-Fi module of low-power, small-size and low-cost designed by MXCHIP. It
integrates one Cortex-M4 microcontroller of 256Kbytes SRAM and 1Mbytes on-chip flash with another 2Mbytes
on-board SPI flash added. Various peripheral interfaces of analog and digital are available. The power supply
voltage is 3.3V. It applies half-hole footprint for hand-soldering. The module runs MICO, which is the IOT OS
System of MXCHIP, and is available for secondary development. The TCP/IP protocols and security encryption
algorithm could be applied in various Wi-Fi applications. In addition, several particular firmware prepares for some
typical applications, like UART to Wi-Fi DTU, easylink configuration and services for cloud interfacing.
EMW3166 Block diagram:
EMW3166 Wi-Fi Module Hardware Block
Network
Processor
ADC
Flash
1M bytes
WLAN
Subsystem
2.4GHz radio
U.F.L connector
On-board
PCB Ant
Flash 2M
bytes
Power
Mangement
3.3V Input
26MHz
OSC
26MHz
OSC
SRAM
256K bytes
32.768KHz
OSC
Timer/PWM
UART
I
2
C
GPIO
SPI
SDIO
SPI
802.11b/g/n
MAC/Baseband/
radio
100MHz
Cortex-M4 MCU
Figure 1 EMW3166 Block Diagram