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Chengdu Ebyte Electronic Technology Co., Ltd
2.4 Pin description
No.
Pin
3
DATA
4
LINK-B
5
LINK-A
IO_RST
6
10
SIM_GND
11
SIM_DATA
12
SIM_RST
13
SIM_CLK
14
SIM_VDD
RST/WKUP
15
NETLIGHT
16
RXD
17
18
TXD
24
VDD_EXT
35
RF_ANT
38
RXD_LOG
39
TXD_LOG
42
VBAT_BB
43
VBAT_RF
1, 27,
34, 36,
GND
37, 40,
41
8, 9,
20～22,
RESERVED
25, 26,
28, 29,
44
2, 7, 19,
23, 30～
NC
33
Copyright ©2012–2020，Chengdu Ebyte Electronic Technology Co., Ltd
I/O
Description
Socket data indicator
DO
Socket1 connection status indicator
DO
Socket0 connection status indicator
DO
Restore factory settings
DI
USIM card grand
GND
USIM card data signal
IO
USIM card reset signal
DO
USIM card clock signal
DO
USIM card power supply
DO
Reset/wake up indicator, valid in
high level
DI
Network status indication
DO
AT interactive and transparent
DI
transmission interface
AT interactive and transparent
DO
transmission interface
3V output power
PO
RF antenna interface
IO
Debug serial port (for log output)
DO
Debug serial port (for log output)
DI
Module baseband power supply
PI
Module RF power supply
PI
GND
Ground
Reserved
No connection
DC characteristics
Valid in low level
Valid in low level
Valid in low level
Valid in low level
Add 20K pull-up resistor
1.8/3V adaptive
10mA max loading
When the pulse width of the
VIL=0V
high level signal is greater
VIHmin=1.2V
than 100us and less than 5s,
VIHmax=3.6v
it is regarded as a wake-up
signal, when it is greater than
6 seconds, it is regarded as a
reset signal. (There is a
pull-down resistor inside)
Fast flashing indicator while
Vnom=3V
80mA max loading
50 Ω characteristic
Vmax=4.2V
Vmin=3.1V
Vnom=3.6V
Can provide static current no
Vmax=4.2V
Vmin=3.1V
Vnom=3.6V
EA01-S User Manual
Remark
on the network
3V voltage
impedance
3V voltage
less than 0.5A
Keep floating
5
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