User's Guide

Review Copy 11-6-10
ThingMagic Micro Family Guide
3
www.JADAKtech.com
Micro Digital Connector Signal Definition
Digital Power Interfaces
Edge Via
Pin #
Molex
53748-0208
Pin #
Signal
Signal
Direction
(In/Out of
Micro)
Notes
1-15, 21, 23,
29, 31
5-8
GND
P/S Return
Must connect all GND pins to
ground
25, 27
1-4
Vin
P/S Input
3.5 to 5.25VDC. Must connect all
Vin supplies.
22
11
GPIO1
Bi-directional
Input 5VDC tolerant, 16mA Source/
Sink
24
13
GPIO2
Bi-directional
28
15
UART_RX_TTL
In
26
17
UART_TX_TTL
Out
18
14
USB_DM
Bi-directional
USB Data (D-) signal
16
12
USB_DP
Bi-directional
USB Data (D+) signal
20
9
USB_5VSENSE
In
Input 5V to tell module to talk on
USB
19
19
SHUTDOWN
In
• HIGH or Open Circuit to
ENABLE module
• LOW or Ground to
SHUTDOWN
17
20
RESET
Bi-directional
• HIGH output indicates Boot
Loader is running
• LOW output indicates
Application Firmware is running
30
U.FL
Antenna 1
Bi-directional
U.FL connector closest to the Molex
connector
32
U.FL
Antenna 2
Bi-directional
U.FL connector closest to the
moduleʼs edge