Chengdu Ebyte Electronic Technology Co,;Ltd
E70-433TxxSx user manual
Copyright ©2012–2023
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Chengdu Ebyte Electronic Technology Co,;Ltd
10
20
TXD
Output
TTL serial port output connecting to external RXD input pin. It can be
configured as open-drain or push-pull input, please refer to Parameter
setting. An external 1k protective
resistor shall be connected in series when in use.
21
TMSC
Input
JTAG TMSC
22
TCKC
Input
JTAG TCKC
23
NC
Reserved pin
Reserved, to be floated
24
NC
Reserved pin
Reserved, to be floated
25
AUX
Output
It is used to indicate the operation status of module, for user to wake up
the external MCU, the module outputs low level during self-checking and
initialization at power on, it can be
configured as open-drain output or pull-up output, please refer to
E70-433T14S2
No.
Pin item
Pin direction
Application