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Introduction of TI CC3200 WiFi Modules

The TI CC3200 WiFi Modules, used for data transparent transmission. USR-C322 is a wifi module released by USR IOT, which has the features of minisize, low power and industry-grade. The hardware of USR-C322 wifi module integrates MAC, baseband chip, RF transceiver unit and power amplifier.
USR-C322 wifi module is based on TI CC3200 chip, which has industrial ARM Cortex-M4 core and ultra-low power operation mechanism. And it supports WiFi protocol and TCP/IP protocol. User can achieve the function of UART devices connecting to Internet with simple configuration.


Features of TI CC3200 WiFi Modules

Support Wi-Fi@2.4 GHz 802.11 b/g/n wireless standards

Based on ARM Cortex-M4 kernel, running frequency of 80 MHZ

Support WEP, WPA/WPA2 security mode

Support AP/STA working mode

Support Simplelink/usrlink networking configuration

Support custom webpage function

The fully integrated serial to wifi TCP/UDP transmission function,the rate of serial port up to 3M bps

Support two uart and three socket communication

Support PC1 16 bytes encryption when work in transparent transmission mode

Support httpsD Client function

Support websocket function

Support SSL Client function

Support search in local area network (LAN) and wireless parameters setting function

Support TCP/UDP Client registration packet mechanism

Support class RFC2217 automatic baud rate adaptation function

Supports 485 transmission control

Support AT+ simple instruction set configuration

Single 3.3 V power supply

Ultra low power mode, support deep dormancy

Support internal/external antenna option

Minisize: 18.22mm*26.65mm*2.8mm SMT

FCC/CE/RoHS certificated


Function of TI CC3200 WiFi Modules

TI CC3200 Chip: TI chips; based on ARM Cortex-M4 kernel; running frequency of 80 MHZ

Ultra-low power:  Working : Min 3.5mA; Deep Sleep : Min 25uA

Open SDK: Support secondary development according to TI SDK and “USR” encapsulated SDK

High-speed UART: Max baud rate of 3Mbps (with specific firmware and opening the flow control; In this firmware, the module only can work in transparent transmission mode)

Simplelink: one key access to WiFi

Double serials: two UARTs

Three links: three TCP links

Two encryption communication methods: PC1 Encrypt,SSL encryption submission

More functions: custom webpage, websocket, httpsd client

No data loss


Application Field of TI CC3200 WiFi Modules

WiFi remote control and monitoring, TCP/IP and WiFi coprocessor

WiFi remote control toy such as aircraft and cars

WiFi Internet radio, camera, digital photo frame

Medical instrument, data acquisition, handheld device

WiFi fatness testing machine, smart card terminal, Smart Home

Instrument, equipment parameter monitoring, wireless POS machine

Modern agriculture, military field and other wireless related secondary development applications


Ultra-low Power TI CC3200 WiFi Modules

Ultra-low Power TI CC3200 WiFi Modules

C322 has five power modes,which has Min.3.5mA standby power and has Min.25uA deep sleep power.Its power control can be the highest level.


Structure of TI CC3200 WiFi Modules

Structure of TI CC3200 WiFi Modules


Function Upgrade of TI CC3200 WiFi Modules

Function Upgrade of TI CC3200 WiFi Modules



Data Submitted to Web Server Directly

Data Submitted to Web Server Directly


Small Size

Small size wifi module


Images of TI CC3200 WiFi Modules

Images of TI CC3200 WiFi Modules

System Information  
Processor TI CC3200 (Cortex-M4 core)
Main Frequency 80MHz
Network Parameter  
Network Protocol IPv4, TCP, UDP, DHCP, DNS, https, ARP, ICMP
TCP Server Max TCP Number 3
Standard 802.11 b/g/n
Network Mode AP / Station
Access Terminal Quantity in AP Mode 1
Frequency Range 2.412 GHz ~ 2.484 GHz
Transmit Power 17.0 dBm @ 1 DSSS
17.25 dBm @ 11 CCK
13.5 dBm @ 54 OFDM
Receive Sensitivity –94.7 dBm @ 1 DSSS
–87.0 dBm @ 11 DSSS
–73.0 dBm @ 54 OFDM
Transmission Rate 802.11b: 11 Mbps
802.11g: 54 Mbps
802.11n: 54 Mbps
Transmission Range Max 200m (open horizon, 3dbi antenna)
Security Mechanism Security: WEP-A / WPA-PSK / WPA2-PSK
Encryption: WEP64 / WEP128 / TKIP / AES
Antenna Interface External: I-PEX connector
Internal: on-board antenna
Port Number 2
Interface Standard TTL: 3.3V
Data Bits 5, 6, 7, 8
Stop Bit 1, 2
Check Bit None, Even, Odd, Space, Mark
Baud Rate 300 bps ~ 3M bps
Flow Control RTS / CTS
Buffer Receive 1K bytes
Virtual Serial Software (USR-VCOM) Windows 2000 or higher (32bit/64bit)
Configuration Built-in webpage, serial AT command, network AT command
Networking UsrLink: “USR” defined module networking mode
SimpleLink: onekey networking provided by TI
Basic Parameter  
Size 18.22 x 26.65 x 2.8mm
Operating Temp. -40 ~ 85°C
Storage Temp. -40 ~ 125°C, 5 ~ 95% RH
Input Voltage DC 3.0 ~ 3.6 V
Working Current AP: 70mA
STA: 18mA
Peak: 247mA
Certificate CE/FCC/ROHS
Warranty 2 years


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