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.
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
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: