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W83194BR-372

Features: • 1 2.5V open drain Differential pairs clock outputs for CPU• 1 2.5V open drain singled-ended clock output for chipset host bus.• 2 3.3V ZCLK clock outputs• 2 AGP clock outputs• 8 PCI synchronous clocks• 2 2.5V IOAPIC clock outputs• 1 24_48Mhz cl...

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W83194BR-372: Features: • 1 2.5V open drain Differential pairs clock outputs for CPU• 1 2.5V open drain singled-ended clock output for chipset host bus.• 2 3.3V ZCLK clock outputs• 2 AGP c...

W83194BR-372 Data Sheet

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Part Number:
W83194BR-372
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/4/18

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Product Details

Description



Features:

• 1 2.5V open drain Differential pairs clock outputs for CPU
• 1 2.5V open drain singled-ended clock output for chipset host bus.
• 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 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 200MHz
• 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


Pinout

Connection Diagram


Specifications

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


Description

The W83194BR-372 is a Clock Synthesizer for SIS 746/748 chipset. W83194BR-372 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 outputs; all clocks are externally selectable with smooth transitions.

The W83194BR-372 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-372 accepts a 14.318 MHz reference crystal as its input and runs on a 3.3V supply.




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