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Chengdu Ebyte Electronic Technology Co.,Ltd.
3. Mechanical properties
3.1 E78-470LN22S Dimensions
3.2 Pin definition
No.
1
2
3
4
5
6
7
8
UART_CTS
9
UART_RTS
10
11
12
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Name
Direction
GND
VCC
SETB
DIO1
Input/output
BUSY
Input/output
I2C_SDA
Input/output
I2C_SCL
Input/output
Input/output
Input/output
GND
ANT
GND
Function
Ground wire, connected to power reference ground
Power supply, range 2.5-3.7v (external ceramic filter
capacitor is recommended)
Low power wake-up pin
NC (reserved pin)
NC (reserved pin)
NC (reserved pin)
NC (reserved pin)
NC (reserved pin)
NC (reserved pin)
Ground wire, connected to power reference ground
Antenna interface, stamp hole (50 ohm characteristic
impedance)
Ground wire, connected to power reference ground
E78-470LN22S User Manual
6
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