Datasheet > ICS9250YF-14LF-T

ICS9250YF-14LF-T

更新时间： 2024-01-17 18:00:10

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
13页	410K
描述
Processor Specific Clock Generator, 149.69MHz, PDSO56, 0.300 INCH, SSOP-56

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技术参数
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ICS9250YF-14LF-T 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 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：	149.69 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：	14.318 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-14LF-T 数据手册

ICS9250-14

Integrated

Circuit

Preliminary Product Preview

Systems, Inc.

Frequency Timing Generator for Pentium II Systems

General Description

The ICS9250-14 is a single chip clock for Intel Pentium II.

Features

Generates the following system clocks:

- 2 - CPUs @ 2.5V, up to 150MHz.

-1-IOAPIC@2.5V, PCIorPCI/2MHz.

-13 SDRAMs(3.3V)@150MHz.

-2-3V66@3.3V,2xPCIMHz.

-8-PCIs@3.3V.

-1-48MHz, @3.3Vfixed.

-2-REF@3.3V,14.318Hz.

It provides all necessary clock signals for such a system.

Spread spectrum may be enabled through I²C programming.

Spread spectrum typically reduces EMI by 8dB to 10 dB.

This simplifies EMI qualification without resorting to board

design iterations or costly shielding. The ICS9250-14

employs a proprietary closed loop design, which tightly

controls the percentage of spreading over process and

temperature variations.

-1-24MHz, @3.3Vfixed.

Supports spread spectrum modulation ,

± .25% center spread.

I²C support for power management

Efficient power management scheme through PD#

Uses external 14.138 MHz crystal

Block Diagram

Skew Specifications

CPUCPU:<175ps

SDRAM - SDRAM: < 250ps

3V663V66:<250ps

PCIPCI:<500ps

CPU-SDRAM<500ps

CPU(early)-PCI:MIN=1.0ns,TYP=2.0,MAX=4.0

CPU-3V66<500ps

3V66(early)-PCI:MIN=1.5ns,TYP=2.0,MAX=4.0

IOAPIC-PCI<500ps

Pin Configuration

Power Groups

GNDREF,VDDREF=REF,Crystal

GND3V66,VDD3V66=3V66

GNDPCI,VDDPCI=PCICLKs

GNDCOR,VDDCOR=PLLCORE

GND48,VDD48=48

GNDSDR,VDDSDR=SDRAM

GNDLCPU,VDDLCPU=CPUCLK

GNDLPCI,VDDLAPIC=IOAPIC

56-Pin 300 mil SSOP

1. These pins will have 2X drive strength.

* 120K ohm pull-up to VDD on indicated inputs.

PentiumII is a trademark of Intel Corporation

I²C is a trademark of Philips Corporation

PRODUCT PREVIEW documents contain information on new

products in the sampling or preproduction phase of development.

Characteristic data and other specifications are subject to change

without notice.

9250-14RevA 2/5/00

12 3 4 5 6 7...13

中文翻译

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与ICS9250YF-14LF-T相关器件

型号	品牌	获取价格	描述	数据表
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
ICS9250YF-22LF-T	IDT	获取价格	Processor Specific Clock Generator, 133MHz, PDSO56, 0.300 INCH, SSOP-56

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