PI6C185-02B 데이터 시트보기 (PDF) - Pericom Semiconductor

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PI6C185-02B

Precision 1-7 Clock Buffer

Pericom Semiconductor 

PI6C185-02B

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Pin Description

Pin

2,3,6,11,12,15,16

5

8

9

1,7,13

4,10,14

Signal

SDRAM [0...6]

BUF_IN

SDATA

SCLK

VDD

VSS

Type

I

I

I/O

I

Power

Ground

Qty.

Description

7 Buffered Clock Outputs

1 Clock Buffer Input

1 Serial Data for I2C interface

1 Serial Clock for I2C interface

3 3.3V Power Supply

3 Ground

PI6C185-02B I2C Address Assignment

A6 A5 A4 A3 A2 A1 A0 R/W

110 10 0 1 0

PI6C185-02 Serial Configuration Map

Byte0: SDRAM Active/Inactive Register

(1 = enable, 0 = disable)

Bit Pin #

Description

Bit 7 6 SDRAM2

Bit 6 - NC (Initialize to 0)

Bit 5 - NC (Initialize to 0)

Bit 4 - NC (Initialize to 0)

Bit 3 3 SDRAM1

Bit 2 2 SDRAM0

Bit 1 - NC (Initialize to 0)

Bit 0 - NC (Initialize to 0)

Note: Inactive means outputs are held LOWand are disabled

from switching

Byte1: SDRAM Active/Inactive Register

(1 = enable, 0 = disable)

Bit Pin#

Description

Bit 7 16 SDRAM6

Bit 6 15 SDRAM5

Bit 5 - NC (Initialize to 0)

Bit 4 - NC (Initialize to 0)

Bit 3 12 SDRAM4

Bit 2 11 SDRAM3

Bit 1 - NC (Initialize to 0)

Bit 0 - NC (Initialize to 0)

2

PS8469 05/03/00

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