PI6C185-00 查看數據表（PDF） - Pericom Semiconductor Corporation

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PI6C185-00

Precision 1-7 Clock Buffer

Pericom Semiconductor Corporation 

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Precision 1-7 Clock Buffer

Features

• High-speed, low-noise non-inverting 1-7 buffer

• Switching speed up to 128 MHz

• Supports up to three mobile SDRAM DIMMs

• Low skew (<250ps) between any two output clocks

• I2C Serial Configuration interface

• Multiple VDD, VSS pins for noise reduction

• 3.3V power supply voltage

• Packaging (Pb-free & Green available):

- 20-pin QSOP (Q)

Description

The PI6C185-00 is a high-speed low-noise 1-7 non-inverting

buffer designed for SDRAM clock buffer applications.

This buffer is intended to be used with the PI6C10X clock genera-

tor for Intel Architecture-based Mobile systems.

At power up all SDRAM output are enabled and active. The I2C

Serial control may be used to individually activate/deactivate any

of the 7 output drivers.

Note:

Purchase of I2C components from Pericom conveys a license to use

them in an I2C system as defined by Philips.

Block Diagram

BUF_IN

SDATA

I2C

SCLOCK

I/O

SDRAM0

SDRAM1

SDRAM2

SDRAM3

SDRAM6

Pin Configuration

VDD 1

SDRAM0 2

SDRAM1 3

VSS 4

BUF_IN 5

VDD 6

SDRAM2 7

VSS 8

VDD 9

SDATA 10

20 VDD

19 SDRAM6

18 SDRAM5

17 VSS

16 VDD

15 SDRAM4

14 SDRAM3

13 VSS

12 VSS

11 SCLK

08-0298

1

PS8317F 11/13/08

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