Data Sheet

X-C13SM
802.11bgn and BLE SoC
Shanghai ChipFresh Internet of Things Technology Co., Ltd
9
Table1. Pins Definition
2.3 Physical Dimensions
 X-C13SM-1&X-C13SM-0 Physical Dimensions (Unit: mm),please refer to Figure 3:
Figure 3. Physical Dimensions
7
GPIO8
IPD
Internal 10K pull-down resistor,
Boot select:
Low: boot from module flash.
High: boot from external UART.
This is used for factory firmware program, leave it
unconnected for user application
8
GPIO21
IPU/O
SPI,PWM
9
GPIO0
IPU/O
SPI,PWM
10
RESET
I,PU
“Low” effective reset input.
11
GPIO4
Ready
O
“0” – Boot-up OK;
“1” – Boot-up Fail;
12
GPIO3
Factory
IPU
press this button ( “Low” > 4s ) and loose to make
the module recover to factory setting.
13
GPIO5
Link
IPU/O
“0” – Wi-Fi connect to router
“1” – Wi-Fi unconncted
14
GPIO1
IPU/O
SPI,PWM
15
+3.3V
3V3
P
The maximum output current of the external power
supply is recommended to be above 500mA.
16
Ground
P
GND