Data Sheet

MediaTek MT7681 Datasheet

1 Introduction

1.1 General Description

The MT7681 is a highly integrated Wi-Fi System on Chip (SoC), which supports IEEE802.11b/g/n

single stream, GPIO and PWM for intelligent control and UART/SPI interfaces for device

communication.

The MT7681 integrates a power amplifier, low noise amplifier and RF switch to reduce the module

size and simplify RF design in the final product. It also integrates a power management unit for a

single 3.3V power source.

A 32-bit RISC MCU is embedded in the MT7681 to run 802.11b/g/n drivers, wireless supplicant,

TCP/IP protocol stack and networking applications. It also helps provide Wi-Fi station and softAP

operation modes.

These features make the MT7681 a cost effective chipset for use in embedded devices that need to

enable Wi-Fi-based networking services with minimal design effort.

All these features are available in a compact 40 pin, 5mm x 5mm QFN package.

1.2 Features

The key features of the MT7681 are:

• Single stream IEEE 802.11b/g/n

• 32-bit RISC microprocessor host MCU

• Embedded IEEE 802.11b/g/n drivers, wireless supplicant and TCP/IP stack

• Highly integrated RF PA, LNA and RF switch

• Integrated high efficiency switching regulator for single 3.3V power source

• Security support for WPA personal (WPA-PSK), WPA2 personal (WPA2-PSK) and

WPA/WPA2 personal

• Operation in station or softAP modes

• Rich I/O interfaces: UART, SPI, PWM and GPIO

• All functions integrated in a compact 5mm x 5mm QFN40L package

This document contains information that is proprietary to MediaTek Inc.

Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited.