MT7697

Overview

MT7697 is a highly integrated SoC which features a Cortex-M4 application processor, a low power 1x1 802.11b/g/n single-band Wi-Fi subsystem, a Bluetooth subsystem, and a Power Management Unit. MT7697D is an enhanced version with additonal support to 802.11a and 5GHz band. Visit the overview page to compare different smart home chipsets.

MT7697 key features

Integrate 4Kbit eFuse to store device specific information and RF calibration data
Advanced Wi-Fi/Bluetooth coexistence scheme
High integration with RF+MCU+Memory
Low power mode with RTC

MT7697 Product Brief

MT7697 Datasheet

The application processor subsystem contains ARM Cortex-M4F MCU. It also includes many peripherals, including UART, I2C, SPI, I2S, PWM, IrDA, and auxiliary ADC. It also includes embedded SRAM/ROM.

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 application. It also contains a 32-bit RISC CPU that could fully offload the application processor. The Bluetooth subsystem contains the Bluetooth radio, baseband, link controller. It also uses the same 32-bit RISC CPU for the Bluetooth protocols.

MT7697D key features

The difference between MT7697 and MT7697D is that, MT7697D supports additional features below:

IEEE 802.11a
5GHz band
Dual-band 1T1R

MT7697D Product Brief

MT7697D Datasheet

Features

Platform

ARM Cortex-M4 MCU with FPU up to 192MHz
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, GPIO

Technology and package

Highly integrated 40nm RFCMOS technology
8mm x 8mm 68-pin QFN package

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, LDPC
Greenfield, mixed mode, legacy modes support
IEEE 802.11 d/e/h/i/k/r/w support
Security support for WFA WPA/WPA2 personal, WPS2.0, WAPI
Supports 802.11w protected managed frames
QoS support of WFA WMM, WMM PS
Integrated LNA, PA, and T/R switch
Optional external LNA and PA support
RX diversity support with additional RX input

Bluetooth

Bluetooth 4.2 Low Energy (LE)
Integrated BALUN and PA
Supports SCO and eSCO link with re-transmission
Channel assessment for AFH

HDK

LinkIt 7697 HDK by Seeed Studio

The LinkIt 7697 HDK is an Internet of Things (IoT) applications development board based on MediaTek MT7697 SoC. The MT7697 chip is based on ARM Cortex-M4 processor with FPU and features 802.11b/g/n Wi-Fi and Bluetooth 4.2 Low Energy connectivity.

Features

ARM Cortex-M4 based MT7697 SoC @ 192MHz
802.11b/g/n wireless connectivity
Bluetooth 4.2 Low Energy
352 KB of RAM
4 MB external Flash memory
Micro-USB port for power supply
Virtual COM port through onboard CP2102N USB-to-UART chipset
Two buttons for system reset and external interrupt
Peripheral interfaces including GPIO, UART, I2C, SPI, PWM, EINT, ADC, IrDA, I2S
Pin headers for SWD debugging
LinkIt SDK GCC, IAR Embedded Workbench, and Keil uVision IDE (Get Started Guide)
Additional add-on Package for Arduino IDE support
Size: 48 x 26 mm (1.89 x 1.02 inches)

Downloads

Modules

AI7697H and AI7697HD by AcSiP

AI7697H is a highly integrated SIP module which features MT7697 with 4MB serial flash and MHF4 series connector on a 18x18mm footprint. AI7697HD is a variation which features MT7697D.

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wrtnode^7 by wrtnode

wrtnode^7 is the all-in-one module of MT7697 with 4MB flash and build-in ceramic antenna or external antenna via IPEX MHF4, with extremely tiny size in 23x18mm while all pins out.

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