W83194BR-138, W83194BR-341, W83194BR-603 Selling Leads, Datasheet
MFG:Winbond Package Cooled:SSOP48 D/C:2005+
W83194BR-138, W83194BR-341, W83194BR-603 Datasheet download
Part Number: W83194BR-138
MFG: Winbond
Package Cooled: SSOP48
D/C: 2005+
W83194BR-138, W83194BR-341, W83194BR-603
- Table of contents:
Info of W83194BR-138
Info of W83194BR-341
Info of W83194BR-603
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About W83194BR-138
PDF/DataSheet Download
Datasheet: W83194BR-138
File Size: 238887 KB
Manufacturer: WINBOND [Winbond]
Download : Click here to Download
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
W83194BR-138 General Description
The W83194BR-138 is a Clock Synthesizer for Intel 815 Solano chipset. W83194BR-138 provides all clocks required for high-speed RISC or CISC microprocessor and also provides 64 different frequencie of CPU, SDRAM, PCI, 3V66, IOAPIC clocks frequency setting. All clocks are externally selectable with smooth transitions.
The W83194BR-138 provides I2C serial bus interface to program the registers to enable or disable each clock outputs and provides 0.25% and 0.5% center type spread spectrum to reduce EMI.
The W83194BR-138 provides stepless frequency programming by controlling the VCO freq. and the clock output divisor ratio. Also the skew of CPU, SDRAM and 3V66 clock outputs are programmable. A watch dog timer is quipped and when time out, the RESET# pin will output 4ms pulse signal.
The W83194BR-138 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.
W83194BR-138 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 |
W83194BR-138 Features
· 2 CPU clocks
· 3 3V66 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
· 0.25% or 0.5% center type spread spectrum
· Programmable registers to enable/stop each output and select modes (mode as Tri-state or Normal )
· 48 MHz for USB
· 24 MHz for super I/O
· Packaged in 48-pin SSOP
· 3 3V66 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
· 0.25% or 0.5% center type spread spectrum
· Programmable registers to enable/stop each output and select modes (mode as Tri-state or Normal )
· 48 MHz for USB
· 24 MHz for super I/O
· Packaged in 48-pin SSOP
W83194BR-138 Connection Diagram
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