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Chengdu Ebyte Electronic Technology Co.,Ltd.
3. 4 E70-433MT14S dimensional drawing and pin definition
Pin serial
Pin name
number
1
VCC
2
GND
3
RESET
4
TCK
5
TMS
6
ANT
7
GND
8
NC
9
NC
10
NC
11
AUX
12
TXD
13
RXD
Chengdu Ebyte Electronic Technology Co.,Ltd.
Copyright ©2012–2020
Pin
orientation
power supply
Module power supply positive reference, voltage range: 2.2~3.8V DC
Referential
Ground, connected to the power supply reference ground
input
Module reset pin, active low
Input/output
Program download port, JTAG TCKC
Input/output
Program download port, JTAG TMSC
Input/output
Antenna interface, stamp hole (50Ω characteristic impedance).
Referential
Ground, connected to the power supply reference ground
Keep your feet
Leave unused, need to dangling
Keep your feet
Leave unused, need to dangling
Keep your feet
Leave unused, need to dangling
Used to indicate module operating status, user wakes up external MCU
output
during POST initialization
output, see parameter settings (can be floated).
It can also be used as a TTL serial output, connected to an external RXD input pin;
output
Can be configured as an open-drain or push-pull output, see parameter settings
input
TTL serial input, connected to an external TXD output pin;
Pin usage
, can be
configured as open-drain output, or push-pull
series User Manual
E70-433T
, output
17
low
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