Ⅲ Dimensions And Pin Definitions - Ebyte E49-400T30S Specifications

Chengdu Ebyte Electronic Technology Co.,Ltd.
Dimensions
Antenna interface
Ⅲ Dimensions and Pin Definitions
Pin
Pin
Pin Orientation
number
name
1
GND Input
2
VCC Input
3
AUX Output
4
TXD Output
5
RXD Input
Input (very weak
6
M1
pull-up)
Input (very weak
7
M0
pull-up)
11
ANT Output
12
GND
13
GND
14
GND
18 Input/Output
NC
19 Input/Output
NC
Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd.
26*16mm
IPEX/ Stamp hole
Pin Usage
Module ground
DC Module power positive reference, voltage range: 3.3 ~ 5.5V DC
Used to indicate the working state of the module; the user wakes up the external MCU, and outputs a low level
during the power-on self-test initialization; (can be left floating)
TTL serial output, connected to external RXD input pin;
TTL serial port input, connected to the external TXD output pin;
Cooperate with M0 to determine the 4 working modes of the module (can not be suspended, if not used, it
can be grounded)
Cooperate with M1 to determine the 4 working modes of the module (can not be suspended, if not used, it
can be grounded)
Antenna interface (high frequency signal output, 50 ohm characteristic impedance)
Fixedly
Fixedly
Fixedly
NC pin, this pin needs to be left floating (for subsequent expansion)
NC pin, this pin needs to be left floating (for subsequent expansion)
E49-400T30S Specifications
Equivalent impedance is about 50 ohms
5