Chengdu Ebyte Electronic Technology Co.,Ltd.
Copyright ©2012–2020
Chengdu Ebyte Electronic Technology Co.,Ltd.
16
feet
7
NC
Keep your
feet
Leave unused, need to dangling
8
VCC
Module power supply positive reference, voltage range: 2.2~3.8V DC
9
GND
Referent
ial
Module ground
10
GND
Referent
ial
Module ground
11
PA_EN
output
External PA control output, active high (floatable).
12
LNA_EN
output
External LNA control output, active high (floatable).
13
M2
input
The combination of
M2M1M0 determines the
module's 8 operating modes, which
require an external 1K protection resistor
in series
14
RESET
input
Module reset pin, active low
15
GND
Referent
ial
Module ground
16
AUX
output
It is used to indicate the working status of the module, the user wakes up the
external MCU
, and the
output is low
during power-on
self-test
initialization, which can be configured
Set as an open-drain output, or push-pull output, see parameter settings (can
be floated)
17
TXD
output
It can also be used as a TTL serial output, connected to an external RXD input
pin;
Can be configured as an open-drain or push-pull output, see parameter settings
18
TCKC
input
JTAG TCKC
19
TMSC
input
JTAG TMSC
20
RXD
input
TTL serial input, connected to an external TXD output pin;
Can be configured as an open-drain or pull-up input, see parameter settings
21
M1
input
The M2M1M0 together determines
the
module's 8 operating modes (not floating,
if groundable if not used).
22
M0
input
The M2M1M0 together determines
the
module's 8 operating modes (not floating,
if groundable if not used).
23
GND
Referent
ial
Module ground
24
ANT
antenna
50Ω characteristic impedance
