SCH3112I-NE SMSC [SMSC Corporation], SCH3112I-NE Datasheet - Page 37

• Manufacturer Part Number: SCH3112I-NE
• Description: LPC IO with 8042 KBC, Reset Generation, HWM and Multiple Serial Ports
• Manufacturer: SMSC [SMSC Corporation]

LPC IO with 8042 KBC, Reset Generation, HWM and Multiple Serial Ports
Datasheet
SMSC SCH311X
2.3
I
IL
I
I
I
I
I
IS
I_VID
I
I
O6
O8
OD8
IO8
IOD8
M
AN
ANP
AND-
AND+
M
M
OD3
O3
BUFFER
Note 2.13 The reset glue logic is only available in SCH3112, SCH3114. The serial port is only
Note 2.14 The pins listed here are pins used in all of the SCH311X devices.
Note 2.15 The pins listed here represent addition functionality to those pins listed in
Note 2.16 All logic is powered by VTR. Vcc on pin 29 is used as an indication of the presence of the
User’s Note:
Open-drain pins should be pulled-up externally to supply shown in the power well column. All other
pins are driven under the power well shown.
■
Table 2.8
found in TBD.
Buffer Description
NOMENCLATURE:
No Gate indicates that the pin is not protected, or affected by VCC=0 operation
Gate indicates that the pin is protected as an input (if required) or set to a HI-Z state as an output
(if required)
In these columns, information is given in order of pin function: e.g. 1st pin function / 2nd pin function
lists the buffers that are used in this device. A complete description of these buffers can be
available in the SCH3116. In all the SCH311X family, GP44 -47 have schmidt trigger
inputs.
VCC rail being active. All logic that requires VCC power only, is enabled only when the
VCC rail is active.
Input/Output (Open Drain), 3mA sink.
Input/Output, 3mA sink, 3mA source.
Input/Output, 8mA sink, 4mA source.
Input TTL Compatible - Super I/O Block.
Input, Low Leakage Current.
Input - Hardware Monitoring Block.
Analog Input, Hardware Monitoring Block.
Back Bias Protected Analog Input, Hardware Monitoring Block.
Remote Thermal Diode (current sink) Negative Input
Remote Thermal Diode (current source) Positive Input
Input with Schmitt Trigger.
Input. See DC Characteristics Section.
Output, 6mA sink, 3mA source.
Output, 8mA sink, 4mA source.
Open Drain Output, 8mA sink.
Input/Open Drain Output, 8mA sink, 4mA source.
Table 2.8 Buffer Description
DATASHEET
21
DESCRIPTION
Rev 0.2 (09-28-04)
Table
2.5.