
REF: BB_SRM_xM BeagleBoard-xM System
Reference Manual
Revision A2
Page 26 of 164
5.24 Electrical Specifications
Table 3 is the electrical specification of the external interfaces to the BeagleBoard-xM
Rev A.
Table 3. BeagleBoard Electrical Specification -xM Rev A
Specification Min Typ Max Unit
Power
Input Voltage USB 5 5.2 V
Current USB 350 mA
Input Voltage DC 4.8 5 5.2 V
Current DC 750 mA
Max Voltage without damage 12 V
Expansion Voltage (5V) 4.8 5 5.2 V
Curent (Dépends on source current avalable) 1 A
Expansion Voltage (1.8V) 1.75 1.8 1.85 V
Current 30 mA
USB Host (Same as the DC supplied by the power plug or USB 5V) 4.8 5 5.2 V
Current (Depends on what the DC source can supply over
what the board requires)
Varies
USB OTG
High Speed Mode 480 Mb/S
Full Speed Mode 12.5 Mb/S
Low Speed Mode 1.5 Mb/S
USB Host
High Speed Mode 480 Mb/S
Full Speed Mode 12.5 Mb/S
Low Speed Mode 1.5 Mb/S
RS232
Transmit
High Level Output Voltage 5 5.4 V
Low Level output voltage -5 -5.5 V
Output impedance +/-35 +/-60 mA
Maximum data rate 250 Kbit/S
Receive
High level Input Voltage -2.7 -3.2 V
Lo Level Input Voltage .4
Input resistance 3 5 7 Kohms
JTAG
Realview ICE Tool 30 MHz
XDS560 30 MHz
XDS510 30 MHz
Lauterbach(tm) 30 MHz
microSD
Voltage Mode 1.8V 1.71 1.8 1.89 V
Voltage Mode 3.0V 2.7 3.0 V
Current 220 mA
Clock 48 MHz
DVI-D
Pixel Clock Frequency 25 65 MHz
High level output voltage 3.3 V
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