SimCom SIM7020C Hardware Design

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SIM7020_Hardware_Design_V1.02 13 2018-07-25
USB
USB_VBUS 24 DI,PD
Valid USB detection input with
2.5~5.25V detection voltage
USB interface for
debugging
USB_DP 25 I/O
Positive line of the differential,
bi-directional USB signal.
USB_DN 26 I/O
Negative line of the differential,
bi-directional USB signal.
UART interface
UART1_TXD 1 DOH Transmit Data
If unused, keep them
open.
UART1_RXD 2 DI， PU Receive Data
UART1_RTS
3
DI
，
PU
Request to send
UART1_CTS
4
DOH
Clear to Send
UART1_DCD 5 DOH Data carrier detect
UART1_DTR 6 DI， PU Transmit Data
UART1_RI
7
DOH
Ring Indicator
UART2_TXD
22
DOH
Transmit Data
UART2_RXD
23
DI
，
P
Receive Data
Indicate and Control in PSM Mode
RTC_GPIO0 11 DO
In PSM, RTC_GPIO0 will
change state from low to high if
RTC_EINT receive interrupt
event.
Voltage Domain:
VB AT
RTC_EINT 12 DI 、
P
RTC_EINT can be the wake up
source for exiting PSM.
GPIO
NETLIGHT 41 DO
LED control output as network
status indication.
If unused, keep them
open.
S TAT U S 42 DO
Operating status output.
High level: Power on and
firmware ready
Low level: Power off
GPIO0 10 IO
Do not pull down before power
on
GPIO1 29 IO
RF interface
ANT 32 AI antenna
Other interface
ADC 38 AI
Analog-digital converter input.
Voltage range: 0.1
-
1.4V.
If unused, keep them
open.
NC 20
No connection.
Keep it open

SimCom SIM7020C Specifications

General

Brand	SimCom
Model	SIM7020C
Category	Control Unit
Language	English