Datasheet > 11257-801

11257-801

更新时间： 2024-11-10 21:53:27

品牌	Logo	应用领域
其他 - ETC		逻辑集成电路光电二极管驱动时钟
页数	文件大小	规格书
19页	384K
描述
LOW-SKEW CLOCK FANOUT BUFFER ICs

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中文翻译

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11257-801 数据手册

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April 1999

1.0 Features

2.0 Description

The FS6050 family of CMOS clock fanout buffer ICs are

designed for high-speed motherboard applications, such

as Intel Pentium^®II PC100-based systems with 100MHz

SDRAM.

•

Generates up to eighteen low-skew, non-inverting

clocks from one clock input

•

Supports up to four SDRAM DIMMs

Uses either I²C -bus or SMBus serial interface with

Read and Write capability for individual clock output

control

Up to eighteen buffered, non-inverting clock outputs are

fanned-out from one clock input. Individual clocks are

skew matched to less than 250ps at 100MHz. Multiple

power and ground supplies reduce the effects of supply

noise on device performance.

•

Output enable pin tristates all clock outputs to facili-

tate board testing

Under I²C-bus control, individual clock outputs may be

turned on or off. An active-low output enable is available

to force all the clock outputs to a tristate level for system

testing.

•

Clock outputs skew-matched to less than 250ps

Less than 5ns propagation delay

Output impedance: 17Ω at 0.5V_DD

Serial interface I/O meet I²C specifications; all other

I/O are LVTTL/LVCMOS-compatible

•

Five differerent pin configurations available:

Figure 2: Pin Configuration (FS6050)

•

FS6050: 18 clock outputs in a 48-pin SSOP

FS6051: 10 clock outputs in a 28-pin SOIC, SSOP

FS6053: 13 clock outputs in a 28-pin SOIC

FS6054: 14 clock outputs in a 28-pin SOIC

FS6050

Figure 1: Block Diagram (FS6050)

VDD

SDRAM_(0:1)

VSS

VDD

VDD_I²C

SDRAM_(2:3)

VSS

VDD

SDA

Serial

Interface

48-pin SSOP

SDRAM_(4:5)

SCL

VSS

VDD

VSS_I²C

Figure 3: Pin Configuration (FS6051)

SDRAM_(6:7)

VSS

VDD

CLK_IN

SDRAM_(8:9)

VSS

VDD

SDRAM_(10:11)

VSS

VDD

SDRAM_(12:13)

VSS

VDD

FS6051

SDRAM_(14:15)

VSS

VDD

SDRAM_16

VSS

VDD

SDRAM_17

VSS

28-pin SOIC, SSOP

FS6050

Additional pin configurations are noted on Page 2.

Intel and Pentium are registered trademarks of Intel Corporation. I²C is a licensed trademark of Philips Electronics, N.V. American Microsystems, Inc. reserves the right to change the detail specifica-

tions as may be required to permit improvements in the design of its products.

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中文翻译

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与11257-801相关器件

型号	品牌	获取价格	描述	数据表
11257-802	ETC	获取价格	LOW-SKEW CLOCK FANOUT BUFFER ICs
11257-803	ETC	获取价格	LOW-SKEW CLOCK FANOUT BUFFER ICs
11257-804	ETC	获取价格	LOW-SKEW CLOCK FANOUT BUFFER ICs
11257-806	ETC	获取价格	LOW-SKEW CLOCK FANOUT BUFFER ICs
11257-811	ETC	获取价格	LOW-SKEW CLOCK FANOUT BUFFER ICs
11257-812	ETC	获取价格	LOW-SKEW CLOCK FANOUT BUFFER ICs
11257-813	ETC	获取价格	LOW-SKEW CLOCK FANOUT BUFFER ICs
11257-814	ETC	获取价格	LOW-SKEW CLOCK FANOUT BUFFER ICs
11257-816	ETC	获取价格	LOW-SKEW CLOCK FANOUT BUFFER ICs
112579	AMPHENOL	获取价格	RF BNC Connector, Female, Panel Mount, Press Fit Terminal, Receptacle

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