Ebyte E70-433T Series User Manual page 14

Chengdu Ebyte Electronic Technology Co.,Ltd.
RXD
19
20 TXD
21 TMSC
22 TCKC
23 NC
24 NC
25 AUX
26 VCC
27 GND
28 NC
29 NC
30 NC
31 NC
32 RESET
33 NC
34 NC
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Copyright ©2012–2020
And add a pull-up resistor of 1M (not floating, if not groundable).
TTL serial input, connected to an external TXD output pin;
input
Can be configured as an open-drain or pull-up input, see parameter settings
TTL serial output, connected to external RXD input pin;
output
Can be configured as an open-drain or push-pull output, see parameter settings
input JTAG TMSC
input JTAG TCKC
Keep Leave unused, need to dangling
your
feet
Keep Leave unused, need to dangling
your
feet
Indicates the working status of the module, the user wakes up the external
output
, the output
MCU
be configured as an open-drain output, or push-pull output, see parameter
settings for details;
An external 1K protection resistor (which can be floated)
series for use
Module power supply positive reference, voltage range: 2.2~3.8V DC
Referent Module ground
ial
Keep Leave unused, need to dangling
your
feet
Keep Leave unused, need to dangling
your
feet
Keep Leave unused, need to dangling
your
feet
Keep Leave unused, need to dangling
your
feet
input Module reset pin
Keep Leave unused, need to dangling
your
feet
Keep Leave unused, need to dangling
is low during power-on self-test initialization
series User Manual
E70-433T
,
and can
is required in
13