W83L177R Просмотр технического описания (PDF) - Winbond

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W83L177R

100MHZ 2-DIMM SDRAM BUFFER FOR NOTEBOOK

Winbond 

W83L177R

5.0 PIN DESCRIPTION

IN - Input

OUT - Output

I/O - Bi-directional Pin

* - Internal 250kΩ pull-up

PRELIMINARY

SYMBOL

SDRAM [ 0:9]

*SDATA

*SDCLK

*OE

BUFFER_IN

VDDIIC

VSSIIC

Vdd

Vss

PIN

I/O

FUNCTION

2,3,6,7,11,18, O SDRAM clock outputs which have the same frequency as

22,23,26,27

CPU clocks.

14

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

15

IN Serial clock of I2C 2-wire control interface

20

IN Internal 250K ohm pull-up resistor. Tri-states outputs

when LOW.

9

IN Clock Input from the chipset

13

Power supply for I2C core logic, 3.3 V supply

16

Ground for I2C core logic

1,5,10,19,24, Power supply

28

4,8,12,17,21, Circuit Ground

25

Publication Release Date: Mar. 1999

-3-

Revision 0.10

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