W83194AR-WE, W83194BG-648, W83194BG-B Selling Leads, Datasheet
Package Cooled:Winbond D/C:05+
W83194AR-WE, W83194BG-648, W83194BG-B Datasheet download
Part Number: W83194AR-WE
MFG: --
Package Cooled: Winbond
D/C: 05+
W83194AR-WE, W83194BG-648, W83194BG-B
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Info of W83194AR-WE
Info of W83194BG-648
Info of W83194BG-B
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About W83194AR-WE
PDF/DataSheet Download
Datasheet: W83194AR-WE
File Size: 276845 KB
Manufacturer: WINBOND [Winbond]
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About W83176G-732
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Datasheet: W83176G-732
File Size: 411857 KB
Manufacturer: WINBOND [Winbond]
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About W83176G-732
PDF/DataSheet Download
Datasheet: W83176G-732
File Size: 411857 KB
Manufacturer: WINBOND [Winbond]
Download : Click here to Download
W83194AR-WE 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.
W83194AR-WE Maximum Ratings
|
Symbol |
PARAMETER |
RATING |
|
Vdd , VIN |
Voltage on any pin with respect to GND |
-0.5V to +7.0V |
|
TSTG |
Storage Temperature |
-65° C to +150° C |
|
TB |
Ambient Temperature |
-55° C to +125° C |
|
TA |
Operating Temperature |
0°C to + 70°C |
W83194AR-WE 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
· 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
W83194AR-WE Connection Diagram
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