HARDWARE AND SPECIFICATIONS
10
Dragonfly
TM
MTQ-LEU7 Device Guide
Pin
Signal Name
Logic Level Voltage
1
Max
Voltage
In/Out
Description
12
RADIO_CTS
0 - 3V
3.3V
O
Clear to send (flow control)
13
GND
GND
GND
Ground
14
N/C
15
N/C
16
N/C
17
N/C
18
N/C
19
N/C
20
N/C
21
N/C
22
N/C
23
N/C
24
N/C
25
N/C
26
N/C
27
RADIO_VDD
0-1.8V
1.8V
O
This output is generated by the
radio.
28
GND
GND
GND
Ground
29
RADIO_RTS
0 - 3.3V
3.3V
I
Request to send (flow control)
30
RADIO_DSR
0 - 3V
3.3V
O
Data set ready
31
RADIO_DTR
0 - 3.3V
3.3V
I
DTE ready
32
RADIO_TXD
0 - 3.3V
3.3V
I
Serial data input from DTE
33
VCC-IN
3.3 - 5V +/-5%
Power Input Main Power
34
LINK_STATUS
3V
O
Radio link status LED
35
RESET
0 - 3V
I
Radio reset
36
GND
GND
GND
Ground
37
GND
38
N/C
39
N/C
40
N/C
1
A hyphen (-) indicates a range of acceptable logic levels.
2
USB D+D-: 5V tolerant inputs / 3V drive-level output
