Datasheet > W83194R-WE

W83194R-WE

更新时间： 2024-11-17 23:41:39

品牌	Logo	应用领域
其他 - ETC		时钟发生器
页数	文件大小	规格书
16页	267K
描述
CPU SYSTEM CLOCK GENERATOR\|CMOS\|SSOP\|48PIN\|PLASTIC

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W83194R-WE 数据手册

W83194AR-W

200MHZ CLOCK FOR WHITNEY CHIPSET

1.0 GENERAL DESCRIPTION

The W83194AR-We is a Clock Synthesizer for Intel Whitney chipset. W83194AR-We provides all

clocks required for high-speed RISC or CISC microprocessor and also provides 64 different

frequencies of CPU, SDRAM, PCI, 3V66, IOAPIC clocks frequency setting. All clocks are externally

selectable with smooth transitions.

The W83194AR-We provides I²C serial bus interface to program the registers to enable or disable

each clock outputs and provides 0.5% and 0.75% center type spread spectrum to reduce EMI.

The W83194AR-We 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 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

2 CPU clocks

9 SDRAM clocks for 2 DIMMs

8 PCI synchronous clocks.

Optional single or mixed supply:

(VddR = VddP=VddS = Vdd48 = Vdd3 = 3.3V, VddA=VddC=2.5V)

Skew form CPU to PCI clock -1 to 4 ns, center 2.6 ns

Smooth frequency switch with selections from 66.8 to 200MHz

I²C 2-Wire serial interface and I²C read back

0.5% and 0.75% center type spread spectrum

Programmable registers to enable/stop each output and select modes

(mode as Tri-state or Normal )

Two 48 MHz pins for USB

24 MHz for super I/O

48-pin SSOP package

Publication Release Date: Nov. 1999

Revision 0.50

- 1 -

12 3 4 5 6 7...16

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型号	品牌	获取价格	描述	数据表
W83195AR-25	WINBOND	获取价格	200MHZ 3-DIMM CLOCK FOR SOLANO CHIPSET
W83195AR-WE	WINBOND	获取价格	200MHZ 3-DIMM CLOCK FOR WHITNEY CHIPSET
W83195BG-101	WINBOND	获取价格	Winbond Clock Generator For Intel 915/925 Chipsets
W83195BG-118	WINBOND	获取价格	Clock Generator
W83195BG-202	WINBOND	获取价格	Processor Specific Clock Generator, 404.04MHz, CMOS, PDSO56, 0.300 INCH, LEAD FREE, SSOP-5
W83195BG-25	WINBOND	获取价格	Clock Generator, CMOS, PDSO56
W83195BG-341	WINBOND	获取价格	WINBOND CLOCK GENERATOR FOR VIA P4/KT SERIES CHIPSET
W83195BR-101	WINBOND	获取价格	Winbond Clock Generator For Intel 915/925 Chipsets
W83195BR-118	WINBOND	获取价格	Clock Generator
W83195BR-202	WINBOND	获取价格	Processor Specific Clock Generator, 404.04MHz, CMOS, PDSO56, 0.300 INCH, SSOP-56