W83194BR-703, W83194BR-730, W83194BR-740 Selling Leads, Datasheet
MFG:WINBOND Package Cooled:SOP D/C:08+/09+
W83194BR-703, W83194BR-730, W83194BR-740 Datasheet download
Part Number: W83194BR-703
MFG: WINBOND
Package Cooled: SOP
D/C: 08+/09+
W83194BR-703, W83194BR-730, W83194BR-740
- Table of contents:
Info of W83194BR-703
Info of W83194BR-730
Info of W83194BR-740
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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 W83194BR-730
PDF/DataSheet Download
Datasheet: W83194BR-730
File Size: 116376 KB
Manufacturer: WINBOND [Winbond]
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About W83194BR-740
PDF/DataSheet Download
Datasheet: W83194BR-740
File Size: 1126468 KB
Manufacturer: Winbond
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W83194BR-703 General Description
The W83194BR-703 is a Clock Synthesizer for SIS 741 chipset with 964 South Bridge. W83194BR- 703 provides all clocks required for high-speed microprocessor and provides step-less frequency programming and 32 different frequencies of CPU, PCI, and AGP clocks setting, support two ZCLK clock and one pair current mode differential SRC clock outputs; all clocks are externally selectable with smooth transitions.
The W83194BR-703 provides I2C serial bus interface to program the registers to enable or disable each clock outputs and provides -0.5% and +/-0.25% center type spread spectrum or programmable S.S.T. scale to reduce EMI.
The W83194BR-703 also has watchdog timer to support auto-reset when systems hanging caused by improper frequency setting.
The W83194BR-703 accepts a 14.318 MHz reference crystal as its input and runs on a 3.3V supply.
W83194BR-703 Maximum Ratings
Stresses greater than those listed in this table may cause permanent damage to the device. Precautions should be taken to avoid application of any voltage higher than the maximum rated voltages to this circuit. Subjection to maximum conditions for extended periods may affect reliability. Unused inputs must always be tied to an appropriate logic voltage level (Ground or VDD).
| PARAMETER | RATING |
| Absolute 3.3V Core Supply Voltage | -0.5V to +4.6V |
| Absolute 3.3V I/O Supple Voltage | - 0.5 V to + 4.6 V |
| Operating 3.3V Core Supply Voltage | 3.135V to 3.465V |
| Operating 3.3V I/O Supple Voltage | 3.135V to 3.465V |
| Storage Temperature | - 65 to + 150 |
| Ambient Temperature | - 55 to + 125 |
| Operating Temperature | 0 to + 70 |
| Input ESD protection (Human body model) | 2000V |
W83194BR-703 Features
• 1 3.3V open drain Differential pairs clock outputs for CPU
• 1 3.3V open drain singled-ended clock output for chipset host bus.
• 1 pair 3.3V current mode differential SRC clock.
• 2 3.3V ZCLK clock outputs
• 2 AGP clock outputs
• 8 PCI synchronous clocks
• 2 2.5V IOAPIC clock outputs
• 1 24_48Mhz clock output for super I/O.
• 1 12_48 MHz clock output for USB.
• 3 14.318MHz REF clock outputs.
• ZCLK/AGP/PCI clock out supports synchronous and asynchronous mode
• Smooth frequency switch with selections from 100 to 218MHz
• Step-less frequency programming
• I2C 2-Wire serial interface and support byte read/write and block read/write.
• -0.5% and +/- 0.25% center type spread spectrum
• Programmable S.S.T. scale to reduce EMI
• Programmable registers to enable/stop each output and select modes
• Programmable clock outputs Skew control
• 48-pin SSOP package
• 1 3.3V open drain singled-ended clock output for chipset host bus.
• 1 pair 3.3V current mode differential SRC clock.
• 2 3.3V ZCLK clock outputs
• 2 AGP clock outputs
• 8 PCI synchronous clocks
• 2 2.5V IOAPIC clock outputs
• 1 24_48Mhz clock output for super I/O.
• 1 12_48 MHz clock output for USB.
• 3 14.318MHz REF clock outputs.
• ZCLK/AGP/PCI clock out supports synchronous and asynchronous mode
• Smooth frequency switch with selections from 100 to 218MHz
• Step-less frequency programming
• I2C 2-Wire serial interface and support byte read/write and block read/write.
• -0.5% and +/- 0.25% center type spread spectrum
• Programmable S.S.T. scale to reduce EMI
• Programmable registers to enable/stop each output and select modes
• Programmable clock outputs Skew control
• 48-pin SSOP package
W83194BR-703 Typical Application
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.
W83194BR-703 Connection Diagram
W83194BR-730 General Description
The W83194BR-730 is a Clock Synthesizer which provides all clocks required for high-speed RISC or CISC microprocessor such as AMD K7. W83194BR-730 provides 64 CPU/PCI frequencies which are selectable with smooth transitions by hardware or software. W83194BR-730 also provides 13 SDRAM clocks.
The W83194BR-730 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-730 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, PCICPU, DIMM) is not recommend.
W83194BR-730 Features
· Supports AMD 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
· ±0.25% or 0~-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
· ±0.25% or 0~-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-740 General Description
The W83194BR-740 is a Clock Synthesizer for SiS 735/740 chipset. W83194BR-740 provides all clocks required for high-speed RISC or CISC microprocessor such as AMD K7, and also provides 16 different frequencies of CPU clocks frequency setting. All clocks are externally selectable with smooth transitions. The W83194BR-740 makes SDRAM in synchronous or asynchronous frequency with CPU clocks.
The W83194BR-740 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-740 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-740 Features
• Supports AMD CPU with I2C.
• 3 CPU clocks (one free-running CPU clock)
• 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
• 3 CPU clocks (one free-running CPU clock)
• 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-740 Connection Diagram
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