W83194BR-S Ver la hoja de datos (PDF) - Winbond

Número de pieza

componentes Descripción

Lista de partido

W83194BR-S

200MHZ 2-DIMM CLOCK FOR SOLANO CHIPSET

Winbond 

W83194BR-S

4.3 I2C Control Interface

SYMBOL

PIN

SDATA

25

SDCLK

28

PRELIMINARY

I/O

FUNCTION

I/O Serial data of I2C 2-wire control interface

IN Serial clock of I2C 2-wire control interface

4.4 Fixed Frequency Outputs

SYMBOL

PIN

REFX2 / *FS3

3

*SIO_SEL/24_48MHz

23

48MHz_0

21

48MHz_1/ FS4#

22

I/O

FUNCTION

I/O 14.318MHz reference clock. This REF output is the

stronger buffer for ISA bus loads.

Latched input for FS3 at initial power up for H/W

selecting the output frequency of CPU, SDRAM and

PCI clocks (Default=1).

I/O 24MHz or 48MHz output clock.

Latched input for SIO_SEL at initial power up for the

output frequency of 24MHz(HIGH) and 48MHz(LOW)

clocks.

O 48MHz output for USB during normal operation.

I/O 48MHz / Latched input for FS4 at initial power

up for H/W selecting the output frequency of CPU,

SDRAM and PCI clocks (Default=0).

4.5 Power Pins

SYMBOL

VddL

Vdd48

Vdd3

VddP

VddR

VddS

VddA

Vss

PIN

FUNCTION

48

Power supply for CPU & IOAPIC, 2.5V or 3.3V.

24

Power supply for 48MHz output,3.3V.

6

Power supply for 3V_66 output, 3.3V.

16

Power supply for PCICLK, 3.3V.

2

Power supply for REFX2, 3.3V.

42,34

Power supply for SDRAM[0:8], nominal 3.3V.

27

Power for I2C CLK and DATA.

5,10,14,20,26,30,38, Circuit Ground.

43

-4-

Publication Release Date: June 2000

Revision

0.42

Share Link: