LPC47M112_07 SMSC [SMSC Corporation], LPC47M112_07 Datasheet - Page 13

• Manufacturer Part Number: LPC47M112_07
• Description: Enhanced Super I/O Controller with LPC Interface
• Manufacturer: SMSC [SMSC Corporation]

Enhanced Super I/O Controller with LPC Interface
Datasheet
Note: The buffer type values are specified at VCC=3.3V
IO12
IS/O12
O12
OD12
O6
O8
OD14
OP14
IOP14
IS/OP14
IOD16
O4
IO8
I
IS
PCI_IO
PCI_O
PCI_OD
PCI_I
PCI_ICLK
Note 1. See the PCI Local Bus Specification, Revision 2.1, Section 4.2.2.
Note 2. See the PCI Local Bus Specification, Revision 2.1, Section 4.2.2. and 4.2.3.
The following pins require external pullup resistors:
SMSC DS – LPC47M112
KDAT
KCLK
MDAT
MCLK
GP36/KBDRST if KBDRST function is used
GP37/A20M if A20M function is used
GP20/P17 If P17 function is used
GP21/P16 if P16 function is used
GP22/P12 if P12 function is used
GP27/nIO_SMI if nIO_SMI function is used as Open Collector Output
GP42/nIO_PME if nIO_PME function is used as Open Collector Output
SER_IRQ
GP40/DRVDEN0 if DRVDEN0 function is used as Open Collector
GP41/DRVDEN1 if DRVDEN1 function is used as Open Collector
nMTR0 if used as Open Collector Output
nDS0 if used as Open Collector Output
nDIR if used as Open Collector Output
nSTEP if used as Open Collector Output
nWDATA if used as Open Collector Output
nWGATE if used as Open Collector Output
nHDSEL if used as Open Collector Output
nINDEX
nTRK0
nWRTPRT
nRDATA
nDSKCHG
Buffer Type Descriptions
Pins That Require External Pullup Resistors
Input/Output, 12mA sink, 6mA source.
Input with Schmitt Trigger/Output, 12mA sink, 6mA source.
Output, 12mA sink, 6mA source.
Open Drain Output, 12mA sink.
Output, 6mA sink, 3mA source.
Output, 8mA sink, 4mA source.
Open Drain Output, 14mA sink.
Output, 14mA sink, 14mA source.
Input/Output, 14mA sink, 14mA source. Backdrive protected.
Input with Schmitt Trigger/Output, 14mA sink, 14mA source, Backdrive Protected.
Input/Output (Open Drain), 16mA sink.
Output, 4mA sink, 2mA source.
Input/Output, 8mA sink, 4mA source.
Input TTL Compatible.
Input with Schmitt Trigger.
Input/Output. These pins must meet the PCI 3.3V AC and DC Characteristics. (Note 1)
Output. These pins must meet the PCI 3.3V AC and DC Characteristics. (Note 1)
Open Drain Output. These pins must meet the PCI 3.3V AC and DC Characteristics.
(Note 1)
Input. These pins must meet the PCI 3.3V AC and DC Characteristics. (Note 1)
Clock Input. These pins must meet the PCI 3.3V AC and DC Characteristics and timing. (Note 2)
DATASHEET
Page 13
Rev. 02-16-07