Ebyte EA01-S, User Manual

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