W83194R-58A Datasheet, PDF (6/13 Pages) Winbond – 100MHZ AGP CLOCK FOR VIA CHIPSET

W83194R-58A
5.5 Power Pins
SYMBOL
Vdd
Vddq2
Vddq2b
Vddq3
Vss
PRELIMINARY
PIN
1
42
48
6,14,19, 30, 36
3,9,16,22,27,
33,39,45
FUNCTION
Power supply for Ref [0:1] crystal and core logic.
Power supply for AGP1 and REF1 output, either 2.5V or
3.3V.
Power supply for CPUCLK[0:3], either 2.5V or 3.3V.
Power supply for SDRAM, PCICLK and 48/24MHz
outputs.
Circuit Ground.
6.0 FREQUENCY SELECTION BY HARDWARE
6.2 W83194R-58 Frequency Selection Table
FS2 FS1 FS0
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
CPU(MHz)
112
66.8
97.0
75
133.3
83.3
95.25
100.2
SDRAM
SD_SEL=1
112
66.8
97.0
75
133.3
83.3
95.25
100.2
(MHz)
SD_SEL=0
74.7
66.8
64.67
75
88.7
66.6
63.5
66.8
PCI (MHz)
37.3
33.4
32.33
37.5
44.3
33.3
31.75
33.4
AGP (MHz)
74.7
66.8
64.67
75
88.7
66.6
63.5
66.8
REF (MHz)
14.318
14.318
14.318
14.318
14.318
14.318
14.318
14.318
7.0 CPU 3.3#_2.5 BUFFER SELECTION
CPU 3.3#_2.5 ( Pin 2 ) Input Level
1
0
CPU Operate at
VDD = 2.5V
VDD = 3.3V
Publication Release Date: Nov. 1999
-6-
Revision 0.30