Peripheral devices power management – Eurotech Appliances ZEUS PXA270 User Manual
Page 68
ZEUS Technical Manual
Power and power management
© 2007 Eurotech Ltd Issue D
68
Peripheral devices power management
The following table gives the estimated power consumption of on-board peripherals:
Low power mode
On-board
peripheral
Maximum power
consumption
Minimum consumption
Operating mode
Quad UART
66mW ([email protected])
10mW ([email protected])
Idle
Ethernet 2x
DM9000A
607mW ([email protected])
46mW ([email protected])
Power-down
CAN MCP2515 50mW (10mA@5V)
0.025mW (5uA@5V)
Sleep
CAN transceiver 375mW (75mA@5V)
1.8mW (200uA@5V)
Standby
AC’97 Codec
WM9712L
80mW
0.001mW
OFF
Boomer Amp
LM4880
30mW (6mA@5V)
0.025mW (5uA@5V)
Shut-down
SDRAM x4
2640mW ([email protected]) 26.4mW ([email protected]) Power-down
Flash
165mW ([email protected])
0.015mW ([email protected])
Standby
SRAM
72mW ([email protected])
0.001mW ([email protected])
Standby
RS485
6.6mW ([email protected])
5mW ([email protected])
Disable
CPLD x2
66mW ([email protected])
20mW ([email protected])
Idle
LVDS transceiver 165mW ([email protected])
0.17mW (55uA@3V)
Power-down
I/O expander x2 1.6mW ([email protected])
0.02mW ([email protected]) Idle
RTC
0.4mW ([email protected])
0.012mW ([email protected])
Idle
Temperature
sensor
3.3mW ([email protected])
0.010mW ([email protected]) Shut-down
Config PROM
3.3mW ([email protected])
0.003mW ([email protected])
Standby
Total 4.5W
102mW
External peripheral devices include CF+ card (1.5W max), two USB devices (5W max),
add-on PC/104 cards (5W max), wireless modem (8.5W peak), LCD and Inverter (4W
max), GPS module (50mW max), ZigBee module (30mW max), SDIO (350mW max)
and Quick Capture camera (50mW max).