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W83194BR-640

Winbond
Part Number W83194BR-640
Manufacturer Winbond
Description 166MHZ CLOCK
Published Mar 9, 2007
Detailed Description www.DataSheet4U.com W83194BR-640 166MHZ CLOCK FOR SIS CHIPSET W83194BR-640 Data Sheet Revision History Pages 1 2 3 4 5...
Datasheet PDF File W83194BR-640 PDF File

W83194BR-640
W83194BR-640

Overview
www.
DataSheet4U.
com W83194BR-640 166MHZ CLOCK FOR SIS CHIPSET W83194BR-640 Data Sheet Revision History Pages 1 2 3 4 5 6 7 8 9 10 n.
a.
n.
a.
02/Apr 1.
0 Dates Version Version On Web n.
a.
1.
0 All of the versions before 0.
50 are for internal use.
Change version and version on web site to 1.
0 Main Contents Please note that all data and specifications are subject to change without notice.
All the trademarks of products and companies mentioned in this data sheet belong to their respective owners.
LIFE SUPPORT APPLICATIONS These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury.
Winbond customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Winbond for any damages resulting from such improper use or sales.
-1- Publication Release Date: April.
2001 Revision 1.
0 W83194BR-640 1.
GENERAL DESCRIPTION The W83194BR-640 is a Clock Synthesizer for SiS 640 chipset.
W83194BR-640 provides all clocks required for high-speed RISC or CISC microprocessor such as Intel Pentium II, Pentium III and Celeron, and also provides 16 different frequencies of CPU clocks frequency setting.
All clocks are externally selectable with smooth transitions.
The W83194BR-640 makes SDRAM in synchronous or asynchronous frequency with CPU clocks.
The W83194BR-640 provides step-less frequency programming by controlling the VCO freq.
and the programmable AGP, PCI clock output divisor ratio.
A watch dog timer is quipped and when time out, the RESET# pin will output 4ms pulse signal.
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 W83194BR-640 accepts a 14.
318 MHz reference crystal as its input and runs on a 3.
3V supply.
High drive PCI CLOCK outputs typically provide greater than 1 V /ns slew rate into 30 pF loads...


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