W83194R 查看數據表（PDF） - Winbond
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W83194R Datasheet PDF : 11 Pages
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W83194R-630A
5.5 Power Pins
SYMBOL
Vdd
VddLCPU
VddP
VddSD
Vss
PRELIMINARY
PIN
FUNCTION
1
Power supply for REF crystal and core logic.
47
Power supply for CPUCLK_F and CPUCLK[0:1], either
2.5V or 3.3V.
6,15
Power supply for PCI outputs.
19,27,30,36,42 Power supply for SDRAM and 48/24NHz outputs.
3,10,16,22,33,39,44 Circuit Ground.
6. FREQUENCY SELECTION BY HARDWARE
FS3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
FS2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
FS1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
FS0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
CPU
(MHz)
66.8
100.2
83.3
133.6
75
100.2
100.2
133.6
66.8
97
97
95.2
140
112
96.2
166
SDRAM
(MHz)
100.2
100.2
83.3
100.2
75
133.6
150.3
133.6
66.8
97
129.3
95.2
140
112
96.2
166
PCI (MHz)
33.4
33.4
33.2
33.4
37.5
33.4
33.4
33.4
33.4
32.3
32.3
31.7
35
37.3
32.1
33.3
REF (MHz)
IOAPIC
14.318
14.318
14.318
14.318
14.318
14.318
14.318
14.318
14.318
14.318
14.318
14.318
14.318
14.318
14.318
14.318
7. SEL3.3_2.5# BUFFER SELECTION
SEL3.3_2.5# ( Pin 25 ) Input Level
1
0
CPU Operate at
VDDLCPU = 2.5V
VDDLCPU = 3.3V
Publication Release Date: Nov. 1999
-5-
Revision 0.65
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