W83783S Datasheet, PDF (9/57 Pages) Winbond – MONITORING IC

W83783S
5. PIN DESCRIPTION
I/O12t
I/O12ts
OUT12
AOUT
OD12
INt
INts
AIN
- TTL level bi-directional pin with 12 mA source-sink capability
- TTL level and schmitt trigger
- Output pin with 12 mA source-sink capability
- Output pin(Analog)
- Open-drain output pin with 12 mA sink capability
- TTL level input pin
- TTL level input pin and schmitt trigger
- Input pin(Analog)
Preliminary
Pin Name
VID4
FANIN1
FANIN2
FANIN3/
PWMOUT1
Pin No.
1
2
3
4
OVT#
5
BEEP/GPO# 6
VID3
7
CLKIN
8
SMI# /
9
PWMOUT2
GNDD
10
SCL
11
SDA
12
VID2
13
Type
IN _t
IN_{t s}
IN_{t s}
IN_{t s} /
OUT_12t
OD₁₂
OD₁₂
IN _t
IN _t
OD₁₂ /
OUT_12t
DGROUND
IN_{t s}
OD₁₂
IN _t
Description
Voltage Supply readouts from Pentium II^TM.
0V to 5V amplitude fan tachometer input.
0V to 5V amplitude fan tachometer input.
0V to 5V amplitude fan tachometer input. /
Fan speed control (PWM) output.
This multi-functional pin is programmable.
Over temperature Shutdown Output.
Beep (Default) / General purpose output
This multi-functional pin is programmable.
Voltage Supply readouts from Pentium II^TM.
System clock input. Can select 48MHz or 24MHz
or 14.318MHz. The default is 24MHz.
System Management Interrupt (open drain). The
default state is disabled.
Fan speed control (PWM) output.
This multi-functional pin is programmable.
Internally connected to all digital circuitry.
Serial Bus Clock.
Serial Bus bi-directional Data.
Voltage Supply readouts from Pentium II^TM.
Publication Release Date: April 1999
-4-
Revision 0.55