Installation Instructions

WF-M620-RSD2
IEEE 802.11a/b/g/n 1T1R IoT Module
Sichuan AI-Link Technology Co., Ltd. page 4 of 16
1. Brief Description
The WF-M620-RSD2 IoT module is based on the MediaTek MT3620AN,a highly integrated single chip,tricore WIFI
MCU designed to meet the requirements of modern robust internet-connected devices.It leverages the Microsoft Azure
Sphere security architecture to provide an unprecedented level of security to connected device manufacturers.For the
lifetime of the device the Azure Sphere system provides device authentication and attestation,supports remote
over-the-air software updates to maintain security in the face of evolving attacks,and automates error logging and
reporting.
1.1 Block Diagram
1.2 WIFI Feature

Single band 2.4/5 GHz ISM
 Supported IEEE 802.11a/b/g/n
1.3 Hardware Feature
No.
Feature
Description
1
Main Chip
MT3620AN
2
RAM Capacity
approximately 5MB(including 256KB in each I/O subsystem
and 4MB in the A7 application subsystem)
3
NOR-flash Capacity
16MB on-die and no external flash(The amount of flash that
will be accessible to customer software is TBD)
4
Form Factor
74 pins(stamp hole)
5
Size
24 x 27 x 2.5mm±0.2mm
6
Interface
UART×5：ISU0,ISU1,ISU2,ISU3,ISU4
I2S×1：I2S0
PWM×6：PWM0~PWM5
ADC×4：ADC0~3
GPIO：36 GPIO pins with multi-functions
7
Operation Voltage
3.3V+/-0.3
8
Current Consumption
TX Avg 151mA @11b 11M 17dBm
9
Antenna Type
IPEX connector for external antenna
10
Operating Temperature
-40°C to +85°C
11
Storage Temperature
-45°C to +135°C