w83194br-pt Winbond Electronics Corp America, w83194br-pt Datasheet - Page 5

• Manufacturer Part Number: w83194br-pt
• Description: Stepless Via Pt Main Clock Generator
• Manufacturer: Winbond Electronics Corp America

3. PIN CONFIGURATION
4. BLOCK DIAGRAM
#: Active low
*: Internal pull up resistor 120K to VDD
&: Internal Pull-down resistor 120K to GND
V T T _ P W R G D
M U L T IS E L 0 *
S E L 2 4 _ 4 8 #
S D A T A *
S C L K *
F S (0 :3 )
X O U T
P D # *
X I N
&
MULTISEL0*/PCI1
FS2*/24_48M Hz
SEL24_48
FS3*/48M Hz
FS0
FS1
VDDAGP
X T A L
M /N /R a tio
I n te rf a c e
& P O R
& C o n f ig
P L L 2
R e g is te r
S p e c tr u m
L a tc h
O S C
C o n tro l
&
&
VDDR
VDDA
XOUT
VDDP
L o g ic
&
S p r e a d
AGP0
P L L 1
R O M
I 2 C
/PCI8
/PCI0
PD#*
/REF
GND
GND
GND
GND
PCI2
PCI3
PCI4
PCI5
PCI6
PCI7
XIN
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
V C O C L K
- 2 -
D iv id er
D iv id e r
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
VDDI
GND
IOAPIC 0
IOAPIC 1
GND
VDDCS
CPUT_CS
CPUC_CS
CPUCLKT0
CPUCLKC0
VDDC
IREF
GND
CPUCLKT1
CPUCLKC1
VTT_PWRGD#
Ratio_1
Ratio_0
RESET#
SDATA
SCLK
AGP2
AGP1
GND
2
2
3
2
9
R E F 0 :1
C P U C L K C 0 :1
C P U C L K T 0 :1
R E S E T #
A G P 0 :2
2 4 _ 4 8 M H z
C P U T _ C S
C P U C _ C S
IO A P IC
P C I_ 0 :8
R a tio ( 0 :1 )
4 8 M H z
W83194BR-PT
R r e f