W83194R データシートの表示（PDF） - Winbond

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W83194R

166MHZ CLOCK FOR SIS CHIPSET

Winbond 

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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