User's Manual

XR-50B WIFI module

Page 4 of 17

1.2 Characteristic

◼ IEEE 802.11b/g/n, 1x1 SISO 2.4GHz

◼ Built-in ARM Cortex-M4F 32bit MCU with main frequency up to

384MHz, support RTOS

◼ Built-in 416KB SRAM , 160KB ROM and 4M PSRAM

◼ Support external Flash and eXecute In Place(XIP)

◼ 8 shared universal DMA channels

◼ Built-in 8-way 12bit resolution SAR type AD converter

◼ Integrated WiFi MAC/ BB/RF/PA/LNA

◼ Support WEP, WPA/WPA2, WPS2.0

◼ Support UART/GPIO/ADC/PWM/I2C/I2S interface

◼ Support AES/DES/3DES/SHA/MD5/CRC encryption engine

◼ Support STA/AP/STA+AP mode

◼ Support Smart Config/AirKiss（WeChat） One-click distribution

network

◼ Support Local firmware upgrade using UART and remote upgrade

（FOTA）

◼ Has universal and friendly AT command set

◼ Support secondary development, support Windows, Linux

development environment

◼ On-board AC107 audio CODEC circuit, support for polar

microphones