ShenZhen HLK 7688A User Manual
Shenzhen Hi-Link Electronic Co.,Ltd
HLK-7688A user manual
１
1. INTRODUCTION.......................................................................................................................................................... ３
1.1. BASIC PARAMETER.................................................................................................................................................３
2. DIAGRAM..................................................................................................................................................................... ４
2.1. TYPICAL APPLICATION.......................................................................................................................................... ５
2.2. SPECIFICATIONS...................................................................................................................................................... ６
3. ELECTRICAL CHARACTERISTICS...........................................................................................................................６
3.1. INLUT VOLTAGE...................................................................................................................................................... ６
3.2. RF PERFORMANCE..................................................................................................................................................７
3.2.1. 802.11B 11M............................................................................................................................................................ ７
3.2.2. 802.11G 54M............................................................................................................................................................ ７
3.2.3. 802.11N MCS7(HT20)............................................................................................................................................. ８
3.2.4. 802.11N_MCS7(HT40)............................................................................................................................................ ８
4. MODULE PINS DEFINITION......................................................................................................................................９
4.1. DEFAULT PINS DEFINITION.................................................................................................................................. ９
4.2. DEGAULT PINS DEFINITION..................................................................................................................................９
２
1.INTRODUCTION
1.1. BASIC PARAMETERS
High data processing ability，MCU frequency 580MHz
150M Mbps
Support 802.11b/g/n
20/40 Channel bandwidth
Support 802.11v
Support AP,STA and AP,STA mixed
Five 10/100M ETH PORT
1 USB2.0 Host interface port
Interface SPI/SD-XC/eMMC
Rich peripheral interfaces，SPI,I2C,I2S,PCM,UART,JTAG,GPIO
Widely used in IOT
Inbuilt powerful PMU
Support 16 Multiple BSSID
Support multiple security methods WEP64/128, TKIP, AES, WPA, WPA2, WAPI
Support QoS，WMM，WMM-PS
Support Linux 2.6.36 SDK，OpenWrt 3.10
HLK-MT7688A based on MT7688AN is a low cost and low power consumption IOT module developed by
Hi-Link.The module supports Linux, OpenWRT operating system and custom development. It could be widely
applied to smart devices or cloud services application with its rich interface and powerful processors.
３
2. Diagram
40MHz
IPEX Connector
OR
External Antenna
3.3V
MT7688AN
DDR2(128MB)
SPI Flash(32MB)
HLK-7688 structure
４
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