Datasheet > 微控制器和处理器 > 时钟发生器> W83194R-39

W83194R-39

更新时间： 2024-11-29 22:14:35

品牌	Logo	应用领域
华邦 - WINBOND		晶体时钟发生器微控制器和处理器外围集成电路光电二极管
页数	文件大小	规格书
21页	272K
描述
100MHZ 3-DIMM CLOCK

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中文翻译

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技术参数
数据手册

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W83194R-39 技术参数

生命周期：	Obsolete	零件包装代码：	SSOP
包装说明：	SSOP, SSOP48,.4	针数：	48
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.77
Is Samacsys：	N	其他特性：	ALSO REQUIRES 2.5V SUPPLY
JESD-30 代码：	R-PDSO-G48	JESD-609代码：	e3
长度：	15.88 mm	端子数量：	48
最高工作温度：	70 °C	最低工作温度：
最大输出时钟频率：	100.2 MHz	封装主体材料：	PLASTIC/EPOXY
封装代码：	SSOP	封装等效代码：	SSOP48,.4
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, SHRINK PITCH
电源：	2.5,3.3 V	主时钟/晶体标称频率：	14.318 MHz
认证状态：	Not Qualified	座面最大高度：	2.79 mm
子类别：	Clock Generators	最大供电电压：	3.465 V
最小供电电压：	3.135 V	标称供电电压：	3.3 V
表面贴装：	YES	技术：	CMOS
温度等级：	COMMERCIAL	端子面层：	MATTE TIN
端子形式：	GULL WING	端子节距：	0.635 mm
端子位置：	DUAL	宽度：	7.49 mm
uPs/uCs/外围集成电路类型：	CLOCK GENERATOR, PROCESSOR SPECIFIC	Base Number Matches：	1

W83194R-39 数据手册

W83194R-39/-39A

100MHZ 3-DIMM CLOCK

1.0 GENERAL DESCRIPTION

The W83194R-39/-39A is a Clock Synthesizer which provides all clocks required for high-speed RISC

or CISC microprocessor such as Intel Pentium II. W83194R-39 provides eight different frequency of

CPU and PCI clocks and W83194R-39A provides sixteen CPU/PCI frequencies which are externally

selectable with smooth transitions. W83194R-39/-39A also provides 13 SDRAM clocks controlled by

the none-delay buffer_in pin.

The W83194R-39/-39A accepts a 14.318 MHz reference crystal as its input and runs on a 3.3V

¡ Ó

supply. Spread spectrum built in at 0.5% or 0.25% to reduce EMI. Programmable stopping

individual clock outputs and frequency selection through I²C interface. The device meets the

Pentium power-up stabilization, which requires CPU and PCI clocks be stable within 2 ms after

power-up. It is not recommend to use the dual function pin for the slots(ISA, PCI, CPU, DIMM). The

add on cards may have a pull up or pull down.

High drive six PCI and thirteen SDRAM CLOCK outputs typically provide greater than 1 V /ns slew

rate into 30 pF loads. Two CPU CLOCK outputs typically provide better than 1 V /ns slew rate into 20

¡ Ó

pF loads as maintaining 50 5% duty cycle. The fixed frequency outputs as REF, 24MHz, and 48

MHz provide better than 0.5V /ns slew rate.

2.0 PRODUCT FEATURES

Supports PentiumÔ II CPU with I²C.

2 CPU clocks (one free-running CPU clock)

13 SDRAM clocks for 3 DIMs

6 PCI synchronous clocks

One IOAPIC clock for multiprocessor support

Optional single or mixed supply:

(Vddq1=Vddq2 = Vddq3 = Vddq4 = VddL1 =VddL2= 3.3V) or (Vddq1= Vddq2 = Vddq3=Vddq4 =

3.3V, VddL1 = VdqL2 = 2.5V)

< 250ps skew among CPU and SDRAM clocks

< 250ps skew among PCI clocks

< 5ns propagation delay SDRAM from buffer input

Skew from CPU(earlier) to PCI clock -1 to 4ns, center 2.6ns.

Smooth frequency switch with selections from 50 MHz to 133 MHz CPU

I²C 2-Wire serial interface and I²C read back

Publication Release Date: May 1998

- 1 -

Revision 0.20

12 3 4 5 6 7...21

中文翻译

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与W83194R-39相关器件

型号	品牌	获取价格	描述	数据表
W83194R-39/-39A	ETC	获取价格	100MHz/133MHz（Adding 97MHz）VIA MVP3. VIA Apol
W83194R-39A	WINBOND	获取价格	100MHZ 3-DIMM CLOCK
W83194R-58	WINBOND	获取价格	100 MHZ AGP CLOCK FOR VIA CHIPSET
W83194R-58A	WINBOND	获取价格	100MHZ AGP CLOCK FOR VIA CHIPSET
W83194R-630	WINBOND	获取价格	166MHZ CLOCK FOR SIS CHIPSET
W83194R-630/-630A	ETC	获取价格	166MHz SiS540/630 Clock Gen.. 3-DIMM. with S.S.T.
W83194R-630_07	WINBOND	获取价格	166MHZ CLOCK FOR SIS CHIPSET
W83194R-630A	WINBOND	获取价格	166MHZ CLOCK FOR SIS CHIPSET
W83194R-67A	WINBOND	获取价格	100MHZ 3-DIMM CLOCK FOR VIA MVP4
W83194R-67A/-67B	ETC	获取价格	133MHz(Adding 97MHz) VIA MVP4 Clock Gen.. 3-DIMM. with S.S.T.

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