Shenzhen Coban Electronics Co. Ltd. CB900 用户手册
1.8V/3V SIM
Real time clock
GPIOs
Analog to Digital Converter
Analog Audio
Reset
Power On
Battery Charging Interface
I2C master*
*For hardware reference only. These features are not enabled in the standard module firmware as
it requires a certain level of firmware customization depending on its intended application. Please
contact COBAN for more information
3. Functional Architecture
Figure 1 shows a block diagram of CB900 module and illustrate the major functional components
Figure 1: CB900 Functional Architecture Block Diagram