Hardware Development Guide of Module Product
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26
MF206A
PIN
Signal Definition
Voltage
I/O
PIN Attribute
PU/PD
Remark
21
LED_RED
P1
AO
Signal indicator
interface
--
high-current driver.
22
LED_BLUE
P1
AO
Signal indicator
interface
--
high-current driver.
23
VPH_PWR
Vmax =
4.2V
Vmin =
3.4V
Vnorm =
3.8V
AI
Power supply
--
It must be able to provide
sufficient current in a
transmitting burst which
typically rises to 2.0A
.
24
VPH_PWR
--
25
VPH_PWR
--
26
VPH_PWR
--
27
UART_CTS
P1
DI(
HV
)
UART clear to send
signal
--
--
28
UART_RFR
P1
DO
UART ready for
receive signal
--
--
29
UART_TXD
P1
DO
UART transmit data
output
--
--
30
UART_RXD
P1
DI
UART receive data
input
--
--
31
GND
--
--
Ground
--
--
32
NC
--
--
--
--
--
33
NC
--
--
--
--
--
34
NC
--
--
--
--
--
35
NC
--
--
--
--
--
36
GND
--
--
Ground
--
--
37
ADC
--
AI
Analog / Digital
converter input
--
--
38
GND
--
--
Ground
--
--
39
SPI_CS_N
P1
DO
SPI interface channel
signal
--
--
40
SPI_CLK
P1
DO
SPI clock signal
--
--
41
SPI_DATA_MI_SO
P1
B
SPI data IO signal
--
--
42
SPI_DATA_MO_SI
P1
B
SPI data IO signal
--
--
43
USB_VBUS
--
AI
Power sense for the
internal USB
--
Pay attention to the
power-on sequence of