Datasheet > SC660E

SC660E

更新时间： 2024-09-19 09:33:19

品牌	Logo	应用领域
赛普拉斯 - CYPRESS		时钟
页数	文件大小	规格书
8页	52K
描述
SMBus System Clock Buffer for Mobile Applications

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SC660E 数据手册

SC660E

SMBus System Clock Buffer for Mobile Applications

Product Features

Product Description

10 output buffers for high clock fanout applications

The device is a high fanout system clock distributor. Its

primary application is to create the large quantity of

clocks needed to support a wide range of clock loads

that are referenced to a single existing clock. Loads of

up to 30 pF are supported. Primary application of this

component is where long traces are used to transport

clocks from their generating devices to their loads. The

creation of EMI and the degradation of waveform rise

and fall times is greatly reduced by running a single

reference clock trace to this device and then using it to

regenerate the clock that drives shorter traces by using

the SC660 to generate the clocks at the target devices

EMI is therefore minimized and board real estate is

saved.

Each output can be internally disabled for EMI and

power consumption reduction.

Separate power supply for each group of 2 clock

outputs for mixed voltage application.

< 250ps skew between output clocks.

28-pin SSOP package for minimum board space

Single output Tristate pin for testability

Pin Configuration

Block Diagram

VDDB

SDRAM(0:1)

VDDB

SDRAM0

SDRAM1

VSS

VDDB

SDRAM9

SDRAM8

VSS

VDDB

SDRAM7

SDRAM6

VSS

SDRAM(2:3)

SDRAM4

VDDB

SDRAM2

SDRAM3

VSS

FIN

SDRAM5

VDDB

SDRAM4

VSS

VDDB

SDRAM5

VSS

VDD

SDRAM(6:7)

SDRAM(8:9)

VDD

VSS

SDATA

SCLOCK

SDATA

SCLOCK

I2C

Cypress Semiconductor Corporation

3901 North First Street

San Jose, CA 95134. Tel: 408-043-2600

http://www.cypress.com

Document#: 38-07025 Rev. *A

12/17/2002

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