Datasheet > ICS9250YF-13LF

ICS9250YF-13LF

更新时间： 2024-11-09 15:45:27

品牌	Logo	应用领域
艾迪悌 - IDT		时钟光电二极管外围集成电路晶体
页数	文件大小	规格书
15页	563K
描述
Processor Specific Clock Generator, 90MHz, PDSO56, 0.300 INCH, SSOP-56

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技术参数
数据手册

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ICS9250YF-13LF 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	零件包装代码：	SSOP
包装说明：	SSOP,	针数：	56
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.73
其他特性：	CAN ALSO OPERATE AT 3.3V SUPPLY	JESD-30 代码：	R-PDSO-G56
JESD-609代码：	e3	长度：	18.415 mm
端子数量：	56	最高工作温度：	70 °C
最低工作温度：		最大输出时钟频率：	90 MHz
封装主体材料：	PLASTIC/EPOXY	封装代码：	SSOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, SHRINK PITCH
峰值回流温度（摄氏度）：	260	主时钟/晶体标称频率：	16 MHz
认证状态：	Not Qualified	座面最大高度：	2.794 mm
最大供电电压：	2.625 V	最小供电电压：	2.375 V
标称供电电压：	2.5 V	表面贴装：	YES
技术：	CMOS	温度等级：	COMMERCIAL
端子面层：	Matte Tin (Sn)	端子形式：	GULL WING
端子节距：	0.635 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	30	宽度：	7.5 mm
uPs/uCs/外围集成电路类型：	CLOCK GENERATOR, PROCESSOR SPECIFIC	Base Number Matches：	1

ICS9250YF-13LF 数据手册

Integrated

Circuit

Systems, Inc.

ICS9250-13

Frequency Generator & Integrated Buffers for PENTIUM/Pro^TM

General Description

Features

3.3Voutputs:SDRAM, PCI, REF, 48/24MHz

2.5Vor3.3Voutputs:CPU

The ICS9250-13 generates all clocks required for high speed

RISCorCISCmicroprocessorsystemssuchasIntel PentiumPro

orCyrix. Eightdifferentreferencefrequencymultiplyingfactors

are externally selectable with smooth frequency transitions.

20 ohm CPU clock output impedance

20 ohm PCI clock output impedance

Skew from CPU (earlier) to PCI clock - 1 to 4 ns,

center 2.6 ns.

Spread spectrum may be enabled through I²C programming.

Spread spectrum typically reduces system EMI by 8dB to

10dB. This simplifies EMI qualification without resorting to

board design iterations or costly shielding. The ICS9250-13

employs a proprietary closed loop design, which tightly

controls the percentage of spreading over process and

temperature variations.

No external load cap for C_L=18pF crystals

±250 ps CPU, PCI clock skew

400ps (cycle to cycle) CPU jitter

Smooth frequency switch, with selections from

50to83.3MHzCPU.

I²C interface for programming

2ms power up clock stable time

Clock duty cycle 45-55%.

56pin300milSSOPpackage

3.3V operation, 5V tolerant input.

Block Diagram

Recomended Application:

440LX/EX type chipset Motherboard single chip

clock solution.

Pin Configuration

Power Groups

56-Pin SSOP

VDDREF=REF(0:1),X1,X2

VDDPCI=PCICLK_F,PCICLK(0:5)

VDDSDR=SDRAM(0:11), supplyforPLLcore,

VDD48=24MHz,48MHz

* Internal Pull-up Resistor of

120K to VDD on indicated inputs

VDDLIOAPIC=IOAPIC

VDDL2CPU= CPUCLK(0:3)

Pentium is a trademark of Intel Corporation

I²C is a trademark of Philips Corporation

ICS reserves the right to make changes in the device data identified in

this publication without further notice. ICS advises its customers to

obtain the latest version of all device data to verify that any

9250-13RevA3/25/99

information being relied upon by the customer is current and accurate.

12 3 4 5 6 7...15

中文翻译

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与ICS9250YF-13LF相关器件

型号	品牌	获取价格	描述	数据表
ICS9250YF-14LF-T	IDT	获取价格	Processor Specific Clock Generator, 149.69MHz, PDSO56, 0.300 INCH, SSOP-56
ICS9250YF-14-T	ICSI	获取价格	Frequency Timing Generator for Pentium II Systems
ICS9250YF-16LF-T	IDT	获取价格	Processor Specific Clock Generator, 150MHz, PDSO56, 0.300 INCH, SSOP-56
ICS9250YF-16-T	ICSI	获取价格	Frequency Generator & Integrated Buffers for
ICS9250YF-18	ICSI	获取价格	Frequency Generator & Integrated Buffers for
ICS9250YF-18LF	IDT	获取价格	Processor Specific Clock Generator, 150MHz, PDSO56, ROHS COMPLIANT, SSOP-56
ICS9250YF-19	ICSI	获取价格	Frequency Generator & Integrated Buffers for
ICS9250YF-19LF	IDT	获取价格	Processor Specific Clock Generator, 150MHz, PDSO56, 0.300 INCH, SSOP-56
ICS9250YF-22	IDT	获取价格	Processor Specific Clock Generator, 133MHz, PDSO56, 0.300 INCH, SSOP-56
ICS9250YF-22LF	IDT	获取价格	Processor Specific Clock Generator, 133MHz, PDSO56, 0.300 INCH, SSOP-56

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