W83792AD/AG/D/G
Pin Description List, continued
PIN NAME
PIN
NO.
POWER
PLANE
TYPE
DESCRIPTION
FAN_OUT2
15
A1
5VSB
OUT
12
Fan speed control PWM/DC output. When the power
of VDD is 0v, this pin will drive logic 0. The power of
this pin is supplied by VSB 5V.
I
2
C device address bit 1 trapping during 5VSB power
on.
Fan speed control PWM/DC output. When the power
of VDD is 0v, this pin will drive logic 0. The power of
this pin is supplied by VSB 5V.
I
2
C device address bit 0 trapping during 5VSB power
on.
14.318MHz System clock while VCC5V powered up.
0V to +5V amplitude fan tachometer input
0V to +5V amplitude fan tachometer input
0V to +5V amplitude fan tachometer input
Serial Bus Clock.
Serial Bus bi-directional data.
Power Button output for enable/disable power supply.
IN
ts
FAN_OUT1
16
A0
CLK
FANIN3
FANIN2
FANIN1
SCL
SDA
PWRBTN#
17
18
19
20
21
22
23
VDD
VDD
VDD
VDD
5VSB
5VSB
5VSB
5VSB
I/O
12t
IN
ts
IN
ts
IN
ts
IN
ts
IN
ts
IN
ts
I/OD
12ts
OD
12
+5VSB
24
-
This pin is power for W83792D/G. Bypass with the
POWER parallel combination of 10μF (electrolytic or tantalum)
and 0.1μF (ceramic) bypass capacitors.
Thermal Trip signal from CPU A. Low Active.
THERMTRIP1#
25
FANIN7
THERMTRIP2#
26
5VSB
IN
ts
5VSB
IN
ts
0~+5V FANIN 7 tachometer.
Thermal Trip signal from CPU B. Low Active.
-9-
Publication Release Date: April 26, 2006
Revision 0.9
WINBOND [ WINBOND ]
