Product specifications

VT8237R Data Sheet
Revision 2.06 December 15, 2004 -171- Electrical Specifications
Power Requirements
T
C
= 0 - 85°C
V
CC
= V
SUS25
= V
SUSUSB
= V
SUSMII
= V
CCVK
= V
CCPLL
= V
CCUPLL
= V
CCLAN
= 2.5V ±5%,
V
CC33
= V
SUS33
= V
CCUSB
= V
CCMII
= 3.3V ±5%, V
BAT
= 3.3V +0.3 / –0.9V, V
SDVREF
= V
VLVREF
= 0.9V ±5%, GND = 0V
Symbol Parameter Typ Max Unit Condition
50 140 mA Normal operation
– 50
uA
STR / STD
I
CC33
Power Supply Current – I/O (3.3V)
– <1
uA
Soft Off
425 534 mA Normal operation
I
CC
Power Supply Current – Core (2.5V)
<1
uA
STR / STD / SoftOff
34 62 mA Normal operation
I
CCVK
Power Supply Current – V-Link (2.5V)
120 160
uA
STR / STD / SoftOff
13 110 mA Normal operation
I
SUS33
Power Supply Current – Suspend (3.3V)
– 1920
uA
STR / STD / SoftOff
4.1 4.5 mA Normal operation
I
SUS25
Power Supply Current – Suspend (2.5V)
– 254
uA
STR / STD / SoftOff
4 mA Normal operation
I
SUSUSB
Power Supply Current – Suspend (2.5V) USB
–
uA
STR / STD / SoftOff
mA Normal operation
I
SUSMII
Power Supply Current – Suspend (2.5V) LAN
–
uA
STR / STD / SoftOff
9 mA Normal operation
I
CCUSB
Power Supply Current – USB I/O (3.3V)
–
uA
STR / STD / SoftOff
63 mA Normal operation
I
CCUPLL
Power Supply Current – USB PLL (2.5V)
–
uA
STR / STD / SoftOff
mA Normal operation
I
CCMII
Power Supply Current – LAN MII (3.3V)
–
uA
STR / STD / SoftOff
mA Normal operation
I
CCLAN
Power Supply Current – LAN Power (2.5V)
–
uA
STR / STD / SoftOff
mA Normal operation
I
CCA33
Power Supply Current – SATA (3.3V)
–
uA
STR / STD / SoftOff
mA Normal operation
I
CCAS+ATS
Power Supply Current – SATA (2.5V)
–
uA
STR / STD / SoftOff
I
CCAO
Power Supply Current – SATA Oscillator (2.5V) –
uA
Normal operation
I
VLVREF
Power Supply Current – V-Link Reference (0.9V) –
uA
Normal operation
I
SDVREF
Power Supply Current – IDE Reference (0.9) –
uA
Normal operation
I
BAT
Power Supply Current – RTC Battery (3.3V) – 5
uA
Normal operation
1.1 2.5 W Normal operation
P
D
Power Dissipation
– W STR / STD / SoftOff
Note: If there is a possibility that both SATA ports and all eight USB 2.0 ports will have devices attached and transferring data
simultaneously, a heat spreader is recommended on the chip (see Design Guide for additional information).