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Chengdu Ebyte Electronic Technology Co.,Ltd.
Chapter 3 Size and pin definition
Pin
Item
number
1
GND
2
GND
3
GND
4
GND
5
GND
6
RXEN
7
TXEN
8
GPIO3
9
VCC
10
VCC
11
GND
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Pin direction
Ground
-
Ground
-
Ground
-
Ground
-
Ground
-
RF switch receiving control pin, connected to external MCU IO, high
input
level effective
RF switch receiving control pin, connected to external MCU IO, high
input
level effective
Input/output
Configurable general IO port (see CMT2300A manual for details)
Power supply, range 3.3 ~ 5.5V (external ceramic filter capacitor is
-
recommended)
Power supply, range 3.3 ~ 5.5V (external ceramic filter capacitor is
-
recommended)
Ground
-
E49-400M30S User Manual
Pin purpose
6
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