Wi-Fi

MT7628 Datasheet – Wi-Fi AP/Router System Chip – Mediatek

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Part Number: MT7628

Function: Low-power General-purpose Encoding Circuit Made by CMOS Process

Package: MT7628AN ( DR-QFN 156 pin), MT7628KN ( DR-QFN 120 pin )

Manufacturer: MediaTek Inc

Image :
mt7628-wifi-router-chipset

Description

The MT7628 router-on-a-chip includes an 802.11n MAC and baseband, a 2.4 GHz radio and FEM, a 575/580 MHz MIPS 24K CPU core, a 5-port 10/100 fast ethernet switch. The MT7628 includes everything needed to build an AP router from a single chip. The embedded high performance CPU can
process advanced applications effortlessly, such as routing, security and VoIP. The MT7628 also includes a selection of interfaces to support a variety of applications, such as a USB port for accessing external storage.

The MT7628 also comes with a range of interfaces, including 5p FE switch, USB, PCIe, SD-XC, I2S/PCM and multiple slow I/Os, enabling consumers to easily connect to an extensive range of Internet of Things (IoT) appliances

Pinout

mt7628-datasheet

 

Features

1. Embedded MIPS24KEc (575/580 MHz) with 64 KB ICache and 32 KB D-Cache
2. 2T2R 2.4 GHz with 300 Mbps PHY data rate
3. Legacy 802.11b/g and HT 802.11n modes
4. 20/40 MHz channel bandwidth
5. Reverse Data Grant (RDG)
6. Maximal Ratio Combining (MRC)
7. Space Time Block Coding (STBC)
8. MCM 8 Mbytes DDR1 KGD (MT7628KN)
9. 16-bit DDR1/2 up to 128/256 Mbytes (MT7628AN/KN)

 

Block Diagram

mt7628-module-block-diagram

 

 

Applications:

1. Routers
2. NAS devices
3. Dual band concurrent routers

 

Official Homepage: http://www.mediatek.com/en/news-events/MT7628

Reference Site:

1.  https://downloads.openwrt.org/snapshots/trunk/ramips/mt7628/

2. https://github.com/mqmaker/witi-openwrt/blob/master/package/ramips/drivers/mt7628/files/mt7628.sh

 

MT7628 Datasheet

 

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ESP8266 Datasheet – ESP8266EX WiFi Module – Espressif

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Part Number: ESP8266, ESP8266EX

Package : QFN32 Type

Manufacturer: Espressif Systems IOT Team

Introduction

Espressif Systems’ Smart Connectivity Platform (ESCP) is a set of high performance, high integration
wireless SOCs, designed for space and power constrained mobile platform designers. It provides
unsurpassed ability to embed WiFi capabilities within other systems, or to function as a standalone
application, with the lowest cost, and minimal space requirement.

Image ESP8266EX

Pinout
ESP8266EX Pinout

Description

The ESP8266 WiFi Module is a self contained SOC with integrated TCP/IP protocol stack that can give any microcontroller access to your WiFi network. The ESP8266 is capable of either hosting an application or offloading all Wi-Fi networking functions from another application processor. Each ESP8266 module comes pre-programmed with an AT command set firmware, meaning, you can simply hook this up to your Arduino device and get about as much WiFi-ability as a WiFi Shield offers (and that’s just out of the box)! The ESP8266 module is an extremely cost effective board with a huge, and ever growing, community.

This module has a powerful enough on-board processing and storage capability that allows it to be integrated with the sensors and other application specific devices through its GPIOs with minimal development up-front and minimal loading during runtime. Its high degree of on-chip integration allows for minimal external circuitry, including the front-end module, is designed to occupy minimal PCB area. The ESP8266 supports APSD for VoIP applications and Bluetooth co-existance interfaces, it contains a self-calibrated RF allowing it to work under all operating conditions, and requires no external RF parts.

ESP8266EX datasheet

Reference Site

1. https://en.wikipedia.org/wiki/ESP8266

2. http://www.esp8266.com/ ( Everything ESP8266 )

3. https://www.sparkfun.com/products/13678

 

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