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W83194R-58A PDF预览

W83194R-58A

更新时间: 2024-11-30 12:47:23
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
13页 182K
描述
100MHZ AGP CLOCK FOR VIA CHIPSET

W83194R-58A 技术参数

生命周期:Obsolete零件包装代码:SSOP
包装说明:SSOP,针数:48
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.32
Is Samacsys:N其他特性:ALSO REQUIRES 2.5V SUPPLY
JESD-30 代码:R-PDSO-G48JESD-609代码:e3
长度:15.875 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:133.3 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
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:7.5 mmuPs/uCs/外围集成电路类型:CLOCK GENERATOR, PROCESSOR SPECIFIC
Base Number Matches:1

W83194R-58A 数据手册

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W83194R-58A  
100MHZ AGP CLOCK FOR VIA CHIPSET  
1.0 GENERAL DESCRIPTION  
The W83194R-58A is a Clock Synthesizer for VIA chipset. W83194R-58A provides all clocks  
required for high-speed RISC or CISC microprocessor such as Intel PentiumII and also provides 16  
different frequencies of CPU clocks by software setting. AGP and PCI clocks are externally  
selectable with smooth transitions. The W83194R-58A provides AGP clocks especially for clone  
chipset, and makes SDRAM in synchronous frequency with CPU or AGP clocks.  
The W83194R-58A provides I2C serial bus interface to program the registers to enable or disable  
each clock outputs and choose the 0.25%, 0.5% or 0.5%,1.5% center type spread spectrum to reduce  
EMI.  
The W83194R-58A accepts a 14.318 MHz reference crystal as its input and runs on a 3.3V supply.  
High drive PCI and SDRAM CLOCK outputs typically provide greater than 1 V /ns slew rate into 30  
pF loads. CPU CLOCK outputs typically provide better than 1 V /ns slew rate into 20 pF loads when  
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  
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Supports PentiumÔ , PentiumÔ Pro, PentiumÔ II, AMD and Cyrix CPUs with I2C.  
4 CPU clocks  
12 SDRAM clocks for 3 DIMs  
Two AGP clocks  
6 PCI synchronous clocks.  
Optional single or mixed supply:  
(Vdd = Vddq3 = Vddq2 = Vddq2b = 3.3V) or (Vdd = Vddq3 = Vddq2 = 3.3V, Vdq2b = 2.5V)  
Skew form CPU to PCI clock -1 to 4 ns, center 2.6 ns, AGP to CPU sync. skew 0 ns (250 ps)  
SDRAM frequency synchronous to CPU or AGP clocks  
Smooth frequency switch with selections from 60 to 100 MHz CPU(-37) and 66 to 150MHz(-58)  
I2C 2-Wire serial interface and I2C read back  
0~0.5% down type and 0.25%, 0.5% center type spread spectrum to reduce EMI  
Programmable registers to enable/stop each output and select modes  
(mode as Tri-state or Normal )  
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MODE pin for power Management  
48 MHz for USB  
24 MHz for super I/O  
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48-pin SSOP package  
Publication Release Date: Nov. 1999  
- 1 -  
Revision 0.30  

W83194R-58A 替代型号

型号 品牌 替代类型 描述 数据表
94211AFLFT IDT

功能相似

SSOP-48, Reel
94211AFLF IDT

功能相似

SSOP-48, Tube

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CPU SYSTEM CLOCK GENERATOR|CMOS|SSOP|48PIN|PLASTIC