MT7687

Overview

MediaTek MT7687F is a highly integrated single chip featuring an application processor, a low power 1T1R 802.11n single-band Wi-Fi subsystem and a power management unit (PMU). Visit the overview page to compare different smart home chipsets.

Key features

  • Integrates 4kbit eFuse to store device specific information and RF calibration data

  • High integration with RF, MCU and memory

  • Low power mode with RTC

The application processor subsystem contains ARM Cortex-M4F MCU. It also includes many peripherals, including UART, I2C, SPI, I2S, PWM, IrDA, and auxiliary ADC as well as embedded SRAM/ROM and a serial Flash in the package.


The Wi-Fi subsystem contains the 802.11b/g/n radio, baseband, and MAC that are designed to meet both the low power and high throughput applications. It also contains a 32-bit RISC CPU that could fully offload the application processor.

MT7687 chipset block diagram

Platform

  • ARM Cortex-M4 MCU with FPU

  • Embedded 352kB SRAM and 64kB boot ROM

  • Supports external serial flash with Quad Peripheral Interface (QPI) mode

  • Supports execute in place (XIP) on flash

  • 32KB cache in XIP mode

  • 25 DMA channels

  • Low power RTC mode with 32kHz crystal support

Secure boot and crypto engine

  • Secure Boot from serial flash

  • Hardware crypto engines including AES, DES/3DES, SHA2 for network security

Connectivity

  • SPI, UART, I2C, I2S, PWM, ADC, IrDA and GPIO

WLAN

  • IEEE 802.11 b/g/n compliant

  • Dedicated high-performance 32-bit RISC CPU

  • Supports 20MHz, 40MHz bandwidth in 2.4GHz band

  • Single-band 1T1R mode with data rate up to 150Mbps

  • Supports STBC and LDPC

  • Supports Greenfield, mixed mode and legacy modes

  • Supports IEEE 802.11e

  • Security support for WFA WPA/WPA2 personal and WPS2.0

  • Supports 802.11w protected managed frames

  • QoS support of WFA WMM

  • Integrated LNA, PA, and T/R switch

  • Optional external LNA and PA support

  • RX diversity support with additional RX input

Technology and package

  • 8mm x 8mm 68-pin QFN package with SiP

LinkIt 7687

LinkIt 7687 HDK is a cost-effective and easy-to-use Internet of Things (IoT) development platform for RTOS that supports design, prototyping, evaluation and implementation of IoT projects. It is based on MT7687F, with ARM Cortex-M4F MCU in QFN68 package. The HDK enables rich connectivity features, communication with cloud services and real-time control. LinkIt 7687 HDK provides additional libraries to integrate a variety of peripherals and enable a new class of highly connected applications.

AI7687H by AcSiP

AI7687H is a highly integrated SIP module featuring MT7687 on a compact 18x18mm footprint.

MT7687MODULE by SAC

This module is based on the MediaTek module reference design for MT7687, and featured in the LinkIt 7687 HDK.