Reference Design
A
MC60
Tiger CHENG
CHECKED BY
DRAWN BY
OF
A
6
5
4
32
1
SHEET
A
B
C
D
123456
D
C
B
Quectel Wireless Solutions
PROJECT
SIZE
TITLE
VER
66 DATE
2016/5/30
A2
VOHmin=0.85*VDD_EXT
VOLmax=0.15*VDD_EXT
VILmax=0.25*VDD_EXT
VIHmin=0.75*VDD_EXT
Connection of All Functional UART Port for 3.3V System
1. CTS&RTS will be used for HW flow control when mass data has been sent.
2. When AT+QSCLK=1 is set on the module, customer's application can
control the module to enter into or exit from the sleep mode through the pin DTR.
When DTR is set to high level, and there is no on-air or hardware interrupt,
such as GPIO interrupt or data on serial port, the module will enter into sleep
3. RI will output an indication signal when activity such as voice call or SMS
NOTES
VDD_EXT=2.8V (typical value)
Electric characteristics of the module's input and output port:
MC60
4. DCD is mainly applied in modem communication (PPP). The active status
represents the communication link has been set up.
5. Please pay attention to the level match of UART in product application.
Connection of Three-line UART Port for 3.3V System
MC60
Please pay attention to the level match of UART in product application.
MCU/ARM
mode automatically.
is coming.
VIHmax=VDD_EXT+0.2V
It is recommended to reserve the points for upgrading the firmware.
Serial Interface
MC60
MC60
It is recommended to reserve the points for debug port.
Please pay attention to the level match of UART in product application.
1
TXD
2
RXD
3
RTS
4
CTS
5
GPIO
6
EINT
7
GPIO
8
GND
MCU/ARM
R608
1K
R604
1K
R605
1K
R606
1K
R607
1K
R609
1K
R610
1K
R601
1K
R602
1K
1
TXD
2
RXD
3
GND
R612
5K6
R611
5K6
R613
5K6
R603
5K6
1
T607
1
T608
1
T601
1
T602
1
T603
1
T605
1
T606
1
T604
[1,6]
RXD
[1,6]
TXD
[1]
RTS
[1]
CTS
[1]
DTR
[1]
RI
[1]
DCD
[1,6]
RXD
[1,6]
TXD
[1]
DBG_RXD
[1]
DBG_TXD
[1,5]PWRKEY
VBAT
[1,6]
RXD
[1,6]TXD
VCC_3V3
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