LPC47M172_07 SMSC [SMSC Corporation], LPC47M172_07 Datasheet - Page 200

• Manufacturer Part Number: LPC47M172_07
• Description: Advanced I/O Controller with Motherboard GLUE Logic
• Manufacturer: SMSC [SMSC Corporation]

Advanced I/O Controller with Motherboard GLUE Logic
Datasheet
5V Tolerant Pins
(All except PCI Buffers and
nRSMRST)
Input High Leakage Current
Input Low Leakage Current
3.3V Main Supply Voltage
3.3V Main Supply Current
3.3V Standby Supply
Current
5V Standby Supply Voltage
5V Standby Supply Current
Note:
12.3
Application Note: The following pins are powered by VTR. If configured as output pins, the VTR current will
SMSC/Non-SMSC Register Sets (Rev. 01-11-07)
REF5V_STBY
nCDC_DWN_ENAB/GP24
nCDC_DWN_RST
nPCIRST_OUT
nPCIRST_OUT2
nIO_PME
LATCHED_BF_CUT
PWRGD_3V
nRSMRST
GP10-GP17, GP20-GP23
Total
PARAMETER
All leakage currents are measured with pins in high impedance.
Standby Power Requirements
This includes only signals that are outputs and source standby current (no OD outputs). Internal pull-ups
are ignored due to their small contribution. External pull-ups are not in this analysis because they do not
cause LPC47M172 to draw a discernable amount of additional power.
SYMBOL
increase if these pins are sourcing current into a load.
allowances for this additional current based upon this board design and the loads these pins are
driving.
SYMBOL
V_5P0_S
ILEAK
ILEAK
VCC
TBY
I
I
I
AO
IO12
O12
OP14
OP14
O8/OD8
OP14
O8
O8
IO8
CC3
TR3
TR5
TYPE
Table 12.2 - S3-S5 Standby Current
IH
IL
DATASHEET
4.75
MIN
3.0
3.3
6
6
14
14
4
0
4
4
48
103.3
STBY MAX.
CURRENT
(MA)
Page 200
TYP
3.3
0.2
10
1
Standby Reference Output
CODEC Down Enable/GPIO
CODEC Down Reset
3.3V Buffered copy of nPCI_RESET
Second 3.3V Buffered copy of nPCI_RESET
Power Management Events
Signal only on for a short period of time
Power Good Signal
Reset for the ICH Resume Well
12 GPIOs
MAX
5.25
-10
3.6
10
15
2
3
NAME AND FUNCTION
UNITS
mA
mA
mA
µA
µA
The board designer must make
V
V
V
V
V
VCC must not be greater
than 0.5V above VTR
All outputs open, all inputs
transitioning to/from 0V
from/to 3.3V
All outputs open, all inputs
transitioning to/from 0V
from/to 3.3V
CC
IN
IN
= 0V
= 0V
= 5.5V Max
COMMENTS
SMSC LPC47M172