W83194BR-39B, W83194BR-63S, W83194BR-640 Selling Leads, Datasheet
MFG:WINBOND Package Cooled:SOP48 D/C:07+
W83194BR-39B, W83194BR-63S, W83194BR-640 Datasheet download
Part Number: W83194BR-39B
MFG: WINBOND
Package Cooled: SOP48
D/C: 07+
W83194BR-39B, W83194BR-63S, W83194BR-640
- Table of contents:
Info of W83194BR-39B
Info of W83194BR-63S
Info of W83194BR-640
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About W83194BR-39B
PDF/DataSheet Download
Datasheet: W83194BR-39B
File Size: 282921 KB
Manufacturer: WINBOND [Winbond]
Download : Click here to Download
About W83194BR-63S
PDF/DataSheet Download
Datasheet: W83194BR-63S
File Size: 243054 KB
Manufacturer: WINBOND [Winbond]
Download : Click here to Download
About W83194BR-640
PDF/DataSheet Download
Datasheet: W83194BR-640
File Size: 1317349 KB
Manufacturer: Winbond
Download : Click here to Download
W83194BR-39B General Description
The W83194BR-39B is a Clock Synthesizer which provides all clocks required for high-speed RISC or CISC icroprocessor such as Intel Pentium II or Pentium III. W83194BR-39B provides 64 CPU/PCI frequencies which are selectable with smooth transitions by hardware or software. W83194BR-39B also provides 13 SDRAM clocks controlled by the none-delay buffer_in pin.
The W83194BR-39B provides step-less frequency programming by controlling the VCO freq. and the programmable PCI clock output divisor ratio. A watch dog timer is quipped and when time out, the RESET# pin will output 4ms pulse signal.
The W83194BR-39B accepts a 14.318 MHz reference crystal as its input. 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 device meets the Pentium power-up stabilization, which requires CPU and PCI clocks be stable within 2 ms after power-up. Using dual function pin for the slots(ISA, PCI, CPU, DIMM) is not recommend.
W83194BR-39B 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-39B Features
· Supports PentiumÔ II and !!! CPU with I2C.
· 2 CPU clocks (one free-running CPU clock)
· 13 SDRAM clocks for 3 DIMMs
· 6 PCI synchronous clocks
· One IOAPIC clock for multiprocessor support
· Optional single or mixed supply: (Vddq1=Vddq2 = Vddq3 = Vddq4 = VddL1 =VddL2= 3.3V) or (Vddq1= Vddq2 = Vddq3=Vddq4 = 3.3V, VddL1 = VddL2 = 2.5V)
· < 250ps skew among CPU and SDRAM clocks
· < 250ps skew among PCI clocks
· < 5ns propagation delay SDRAM from buffer input
· Skew from CPU (earlier) to PCI clock 1 to 4ns, center 2.6ns.
· Smooth frequency switch with selections from 66 MHz to 200 MHz CPU
· Step-less frequency programming by controlling the VCO freq. and the clock output divisor ratio
· I2C 2-Wire serial interface and I2C read back
· ±0.25% or ±0.5% spread spectrum function to reduce EMI in freq. table mode
· Programmable spread spectrum in the M/N step-less mode
· Programmable registers to enable/stop each output and select modes
· MODE pin for power Management
· RESET# out when watch dog timer time out
· One 48 MHz for USB & one 24 MHz for super I/O
· 2 CPU clocks (one free-running CPU clock)
· 13 SDRAM clocks for 3 DIMMs
· 6 PCI synchronous clocks
· One IOAPIC clock for multiprocessor support
· Optional single or mixed supply: (Vddq1=Vddq2 = Vddq3 = Vddq4 = VddL1 =VddL2= 3.3V) or (Vddq1= Vddq2 = Vddq3=Vddq4 = 3.3V, VddL1 = VddL2 = 2.5V)
· < 250ps skew among CPU and SDRAM clocks
· < 250ps skew among PCI clocks
· < 5ns propagation delay SDRAM from buffer input
· Skew from CPU (earlier) to PCI clock 1 to 4ns, center 2.6ns.
· Smooth frequency switch with selections from 66 MHz to 200 MHz CPU
· Step-less frequency programming by controlling the VCO freq. and the clock output divisor ratio
· I2C 2-Wire serial interface and I2C read back
· ±0.25% or ±0.5% spread spectrum function to reduce EMI in freq. table mode
· Programmable spread spectrum in the M/N step-less mode
· Programmable registers to enable/stop each output and select modes
· MODE pin for power Management
· RESET# out when watch dog timer time out
· One 48 MHz for USB & one 24 MHz for super I/O
W83194BR-39B Connection Diagram
W83194BR-63S General Description
The W83194BR-63S is a Clock Synthesizer which provides all clocks required for high-speed RISC or CISC microprocessor such as Intel Pentium II or Pentium III. W83194BR-63S provides 64 CPU/PCI frequencies which are selectable with smooth transitions by hardware or software. W83194BR-63S also provides 13 SDRAM clocks.
The W83194BR-63S provides step-less frequency programming by controlling the VCO freq. and the programmable PCI clock output divisor ratio. A watch dog timer is quipped and when time out, the RESET# pin will output 4ms pulse signal.
The W83194BR-63S accepts a 14.318 MHz reference crystal as its input. Spread spectrum built in at 0~-0.5% or ±0.25% to reduce EMI. Programmable stopping individual clock outputs and frequency selection through I2C interface. The device meets the Pentium power-up stabilization, which requires CPU and PCI clocks be stable within 2 ms after power-up. Using dual function pin for the slots(ISA, PCI, CPU, DIMM) is not recommend.
W83194BR-63S Features
• Supports Pentium™II and Pentium™III CPU with I2C.
• 3 CPU clocks (one free-running CPU clock)
• 13 SDRAM clocks for 3 DIMMs
• 6 PCI synchronous clocks
• 2 AGP clocks
• 2 REF clocks as 14.318MHz outputs
• < 250ps skew among CPU and SDRAM clocks
• < 250ps skew among PCI clocks
• Skew from CPU(earlier) to PCI clock 1 to 4ns, center 2.6ns.
• Smooth frequency switch with selections from 66 MHz to 200 MHz CPU
• Stepless frequency programming by controlling the VCO freq. and the clock output divisor ratio
• Programmable skew for CPU to SDRAM and CPU to AGP clock outputs
• I2C 2-Wire serial interface and I2C read back
• 0~-0.25% or ±0.5% spread spectrum function to reduce EMI
• Programmable registers to enable/stop each output and select modes
• MODE pin for power Management and RESET# out when system hang
• One 48 MHz for USB & one 24_48 MHz for super I/O
• 48-pin SSOP package
• 3 CPU clocks (one free-running CPU clock)
• 13 SDRAM clocks for 3 DIMMs
• 6 PCI synchronous clocks
• 2 AGP clocks
• 2 REF clocks as 14.318MHz outputs
• < 250ps skew among CPU and SDRAM clocks
• < 250ps skew among PCI clocks
• Skew from CPU(earlier) to PCI clock 1 to 4ns, center 2.6ns.
• Smooth frequency switch with selections from 66 MHz to 200 MHz CPU
• Stepless frequency programming by controlling the VCO freq. and the clock output divisor ratio
• Programmable skew for CPU to SDRAM and CPU to AGP clock outputs
• I2C 2-Wire serial interface and I2C read back
• 0~-0.25% or ±0.5% spread spectrum function to reduce EMI
• Programmable registers to enable/stop each output and select modes
• MODE pin for power Management and RESET# out when system hang
• One 48 MHz for USB & one 24_48 MHz for super I/O
• 48-pin SSOP package
W83194BR-63S Connection Diagram
W83194BR-640 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. 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-640 Features
• Supports Intel Slot 1 and Socket 370 CPUs with I2C.
• 2 CPU clocks
• 2 AGP clocks
• 1 SDRAM output clock for chipset
• 1 IOAPIC clock
• 6 PCI synchronous clocks.
• Optional single or mixed supply: (Others Vdd = 3.3V, VddLCPU=2.5V)
• Skew --- CPU to CPU < 175ps, CPU to SDRAM < 250ps, PCI to PCI < 500ps, AGP to AGP < 175ps
• Smooth frequency switch with selections from 66 to 200mhz
• I2C 2-Wire serial interface and I2C read back
• 0.5%, 0.25%center type, 0~0.5% down type spread spectrum to reduce EMI
• 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
• 2 CPU clocks
• 2 AGP clocks
• 1 SDRAM output clock for chipset
• 1 IOAPIC clock
• 6 PCI synchronous clocks.
• Optional single or mixed supply: (Others Vdd = 3.3V, VddLCPU=2.5V)
• Skew --- CPU to CPU < 175ps, CPU to SDRAM < 250ps, PCI to PCI < 500ps, AGP to AGP < 175ps
• Smooth frequency switch with selections from 66 to 200mhz
• I2C 2-Wire serial interface and I2C read back
• 0.5%, 0.25%center type, 0~0.5% down type spread spectrum to reduce EMI
• 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-640 Connection Diagram
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