Ebyte E70-433T S Series User Manual page 11

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