MT7688

Overview

MT7688AN SoC is an appliance automation bridge. It integrates a 1T1R 802.11n Wi-Fi radio, a 580MHz MIPS® 24KEc™ CPU, 1-port fast Ethernet PHY, USB2.0 host, PCIe, SD-XC, I2S/PCM and multiple low-speed IOs in a single SoC. Visit the overview page to compare different smart home chipsets.


The MT7688 supports two operation modes – IoT gateway and IoT device mode.


In IoT gateway mode, the PCIe interface can connect to an 802.11ac chipset and be used as an 802.11ac dual-band concurrent gateway. The high performance USB 2.0 allows MT7688 to add 3G/LTE modem support or a H.264 ISP for wireless IP camera. The IoT gateway mode also supports touch panel and Bluetooth Low Energy, Zigbee/Z-Wave and Sub-1 GHz RF for smart home control.


In IoT device mode, MT7688 supports eMMC, SD-XC and USB 2.0 in addition to Wi-Fi high quality audio via 192Kbps/24bits I2S interface and VoIP application through PCM, as well as peripheral interfaces including PWM, SPI slave, 3rd UART and more GPIOs.

Key features

  • MIPS24KEc 580 MHz with 64 KB I-Cache and 32 KB D-Cache

  • Supports up to 256MB RAM with additional SD-card storage

  • 1T1R 2.4 GHz with 150 Mbps PHY data rate

  • Legacy 802.11b/g and HT 802.11n modes

  • 1-port 10/100 FE PHY

  • SD-XC, eMMC, I2C, PCM, I2S(192K/24bits), PWM, SPI master/slave, UART lite, JTAG and GPIO

MT7688AN
Processor Core MIPS24KEc
Clock 580MHz
Package DR-QFN156 (12mmx12mm)
Connectivity
1T1R 802.11n 2.4GHz Wi-Fi
10/ 100M Ethernet
RAM Supports up to 256MB of external 16-bit DDR1/ DDR2 (193MHz) memory
External Flash Storage SPI flash offering 3B addr mode (max 128MBit) and 4B addr mode (max 512MBit)
External Storage SD-XC (Class 10)
Peripherals USB 2.0 host, I2C, I2S, SPI, PWM, UART, GPIO, PCIe and eMMC

The LinkIt Smart 7688 development platform provides hardware development kits (HDKs) you can use to create proof-of-concept IoT devices. The platform delivers two HDKs, as follows:

LinkIt Smart 7688

The LinkIt Smart 7688 development board uses MT7688AN as a standalone MPU.

Application development in Python, Node.js and native C is supported.

LinkIt Smart 7688 Duo

The LinkIt Smart 7688 Duo development board uses MT7688AN as its MPU, complemented by an ATmega32U4 MCU.


In addition to application development in Python, Node.js and native C for MT7688AN, applications for the MCU can be developed using the Arduino IDE.

AI7688H by AcSiP

AI7688H is a Linux, Wi-Fi, SOC, open development platform based on the OpenWrt Linux distribution designed to enable the prototyping of IoT devices.