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CSM64F02 User Manual
802.11 b/g/n IoT WiFi Module
REV 1.1
Add: Floor 9, Tower A, Garden City Cyberport, No. 1079 Nanhai Avenue, Shekou Industrial Zone, Nanshan
District, Shenzhen City
Postcode: 518067
Tel: +(86 755)86169257
Fax: +(86 755)86169057
Web: www.chipsea.com
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Add Electrostatic Discharge in chapter 5.1
Add FCC note at page 9
Modify lable to reduce the FCC/CE Logo
CSM64F02 User Manual
Revision History
Rev1.2 Page 2 of 13
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CSM64F02 User Manual
Contents
REVISION HISTORY ................................................................................................................................................. 2
CONTENTS ................................................................................................................................................................. 3
1 PRODUCT DESCRIPTION ................................................................................................................................ 4
1.1 FUNCTIONAL DESCRIPTION .................................................................................................................................. 4
1.2 FEATURES ............................................................................................................................................................. 4
2 PIN DEFINITION................................................................................................................................................ 5
3 REFERENCE DESIGN ....................................................................................................................................... 6
3.1 SCHEMATIC .......................................................................................................................................................... 6
3.2 PLACEMENT OF ANTENNA .................................................................................................................................... 7
3.2.1
Recommended Scheme................................................................................................................................. 7
3.2.2
Not Recommended Schemes ........................................................................................................................ 7
5 ELECTRICAL CHARACTERISTICS ............................................................................................................... 9
5.1 ABSOLUTE MAXIMUM RATIONGS ......................................................................................................................... 9
5.2 RECOMMENDED OPERATING ENVIRONMENT ........................................................................................................ 9
5.3 RF PERFORMANCE................................................................................................................................................ 9
5.4 POWER CONSUMPTION ....................................................................................................................................... 10
5.5 RAMP UP ............................................................................................................................................................. 11
6 LABEL AND ORDERING INFORMATION ................................................................................................... 12
6.1 LABEL DESCRIPTION .......................................................................................................................................... 12
6.2 ORDERING INFORMATION ................................................................................................................................... 12
7 PACKAGING INFOMATION .......................................................................................................................... 13
Rev1.2 Page 3 of 13
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CSM64F02 User Manual
1 Product Description
1.1 Functional Description
CSM64F02 is a 802.11b/g/n Wi-Fi module developed by CHIPSEA in allusion to Internet of Things. The
module integrates 32-bit high-speed CPU, TCP/IP protocol stack, RTOS, WiFi RF front end and onboard antenna,
supports ADC/ SPI/ UART/ I2C/ PWM and other IO, with small packagee and low power consumption. It can be
used widely for Internet of Things such as intelligent household electrical appliance, intelligent outlet, intelligent
health device, robot and industrial wireless control etc.
CHIPSEA provides one-stop solution including product design, APP development and IoT cloud etc. on the
basis of CSM64F02. Thus, the users may concentrate on their own creativity and application and put the products
into market rapidly.
1.2 Features
Basic feations
Built-in 32-bit ultra-low power CPU
Supporting real-time operating system (RTOS)
Integrating 16Mb SPI Flash
WiFi
Built-in TCP/IP protocol stack
Supporting 802.11b/g/n
Networking protocol:
- IPv4, TCP / UDP / HTTP / FTP
Wireless working mode:
- Station / SoftAP / SoftAP + Station
Security mechanism:
- WPA / WPA2
Encryption type:
- WEP / TKIP / AES
Supporting Smart Config function
Onboard 2dBi WiFi antenna
Peripherals
11 GPIOs
1 UART interface and 1 debug serial port
1 × SPI interface
1 × I2C interface
1× PWM output
1 × ADC
Low power features
Supporting multiple sleep mode; stand-by power
consumption is as low as 1mW
Quick wake-up speed
Operating environment
Scope of operating voltage: 2.7V ~ 3.6V
Scope of operation temperature: -20℃ ~ 85℃
Package
SMD-16 packaging
Dimensions: 16mm × 24mm× 3mm
Rev1.2 Page 4 of 13
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2 Pin Definition
3.3V power supply. Recommended power capacity is 500mA.
Module enable pin; enable at high level
GPIO13; HSPI_MOSI; UART0_CTS
GPIO15; MTDO; HSPICS; UART0_RTS
Pull down from outside
GPIO2; UART1_TXD
Floating (pull up from inside) or pull up from outside
GPIO0
Boot mode selection:
- Pull down: UART downloading;
- Floating or pull up: Boot from Flash
CSM64F02 User Manual
Pin Definition
Rev1.2 Page 5 of 13