SONMicro SE1720-M24 Hardware Manual

SE1720-M24
Embedded Ethernet Module
AXC-1UU / USB-UART Converter
Easy Serial Connection of the module with
PC without need of external power
Not Used
PCTX(URX)
Mini
USB
PCRX(UTX)
Connector
5V
AXC-1UU
GND
Connects over USB with Virtual Com Port
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All I/O is 3.3V CMOS(5V Tolerant) except for
Reserved(Pin9, 22) and Rs232 pins(Pin25, 26).
Pin25 and Pin26 have +/-12V Rs232 voltage
levels and should not be directly connected
to any MCU otherwise MCU get damaged
Pin9 and Pin22 are reserved, and not 5V
tolerant. They should be left unconnected.
SonMicro Electronics - www.sonmicro.com
HARDWARE MANUAL
9V/12VDC
(5V) VDD1 1
GND 2
GPIO4 3
OUT3/DE/DR 4
I2C SDA 5
I2C SCL 6
UART1
UART1 RX >> 7
(Channel1)
UART1 TX << 8
3.3V/5V
(NC) RSV1 9
(3.3V) VDD2 10
(NC) 11
GND 12
RESET 30
UART1 RX >> 31
UART1 TX << 32
(5V) VDD1 33
GND 34
Alternative UART1 connection
pins for external MCU or
PC with AXC-1UU USB-UART
converter tool.
GND
GND
Rs232 TX >>
Rs232 RX <<
Do never connect Rs232 pins
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directly to any Microcontroller
29 28 27 26 25
Mentes Mh. 25124 Sk. Z.Cavus Sit. B Blok alti - 33150 - Mersin - Turkey
Tel: +90 324 341 18 94
Rs232
(Channel2)
+/-12V
UART2(Channel2) is connected to
on-board Rs232 IC on SE1720-M24
s t a n d a r d
24 GND
Do not use UART2 pins if module
comes with Rs232 IC or remove
23 RESET
R5 (0R) found on the bottom layer
22 RSV2 (NC)
of the module to prevent output
confliction with St232 and external
21 SPI MOSI
M C U
20 SPI MISO
For UART connection requirements,
19 SPI CLK
instead of Rs232, you can still use
18 GPIO2
UART1 (Channel1)
17 GPIO1
UART2
16 UART2 RX <<
(Channel2)
15 UART2 TX >>
3.3V/5V
14 (NC)
13 GND
Power Domain & Power Supply Options
Use only one power option:
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Power Option 1(5V Direct, Pin#1 or Pin#33)
Power Option 2(3.3V Direct, Pin#10)
Power Option 3(9V/12VDC, Pin#29)
Power Option 2
3.3V Direct Input
at Pin10. Rs232 will
not be available
3V3
All System
LDO
is 3.3V
Se1720
Core Module
Fax: +90 324 341 18 95 info@sonmicro.com
i
m o d e l .
T X p i n
Power Option 1
5V Direct Input
at Pin1 or Pin33
Power
Option 3
5V LDO
9V/12V DC
input at Pin29
St232
5V