MT7697DIN datasheet(9/84 Pages) ETC2

9 / 84 page

MT7697D

Internet-of-Things Wireless Connectivity

Page 9 of 84

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

System Overview

1.1

General Description

MT7697D is a highly integrated single chip which features an application processor, a low power 1x1

11n dual-band Wi-Fi subsystem, a Bluetooth subsystem, and a Power Management Unit. The

application processor subsystem contains an ARM Cortex-M4 with floating point 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 802.11a/b/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.

1.2

Features

1.2.1

Technology and package



8mm x 8mm 68-pin QFN package.

1.2.2

Power management and clock source



Integrate high efficiency power management unit with single 3.3V power supply

input



40/26/52MHz source crystal clock support with low power operation in idle mode

1.2.3

Platform



ARM Cortex-M4 MCU with FPU with up to 192MHz clock speed



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



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



28 General Purpose IOs multiplexed with other interfaces



Two UART interfaces with hardware flow control and one UART for debug, all

multiplexed with GPIO



One SPI master interface multiplexed with GPIO



One SPI slave interface multiplexed with GPIO



Two I2C master interface multiplexed with GPIO



One I2S interface multiplexed with GPIO



Four channel 12-bit ADC multiplexed with GPIO



28 PWM multiplexed with GPIO

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