[Chip solution]： MT7628AN [WiFi protocol]： IEEE802

11b/g/n [Transmission power]： 20~24dBm [MCU main frequency]： 580MHz [Communication distance]： 200m [Product size]： 34

1*18

7*2

77mm/36

1*18

7*2

7mm [Introduction]： The E103-W20 (7628) module is a low-cost and low-power IoT module based on MediaTek MT7688AN and MT7628AN

This module leads to all interfaces of MT7688AN/MT7628AN, supports OpenWrt operating system and custom development, has rich interfaces and powerful processors, can be widely used in smart devices or cloud service applications, etc

, and can be freely used for secondary development

Electrical parameters unit model Remark E103-W20（7688） E103-W20（7688） working voltage V 3

3±0

2V Voltage over 3

5 V will permanently burn the module communication level V 3

3 Voltage over 3

5 V will permanently burn the module No-load running current mA 180±50 Average power consumption Supply Current Requirement mA ≥1000 temperature Operating temperature ℃ -20～+55 Industrial grade Storage temperature -40～+85 humidity use %RH 10～95(non-condensing) storage 5～95(non-condensing) Hardware parameters model Remark E103-W20（7688） E103-W20（7688） chip MT7688NN MT7628NN Flash 32MB Customizable 16MB/8MB Memory DDR2 128MB Customizable DDR2 256M/64M/32MB Memory MIPS24KEc Packaging method patch SMD Antenna interface IPEX×1 （1T2R 2

4 GHz with 150Mbps PHY data rate ） IPEX×2 （2T2R 2

4 GHz with 300Mbps PHY data rate） Characteristic impedance about 50 ohms