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W83194BR-911

Features: • 2 0.7V current-mode Differential pairs clock outputs• 2 2.5V 25MHz clock outputs• 3 AGP clock outputs• 10 PCI synchronous clocks• 1 24_48Mhz clock output for super I/O.• 1 48 MHz clock output for USB.• 3 14.318MHz REF clock outputs.• AGP/...

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SeekIC No. : 004545118 Detail

W83194BR-911: Features: • 2 0.7V current-mode Differential pairs clock outputs• 2 2.5V 25MHz clock outputs• 3 AGP clock outputs• 10 PCI synchronous clocks• 1 24_48Mhz clock output fo...

W83194BR-911 Data Sheet

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Part Number:
W83194BR-911
Supply Ability:
5000

Price Break

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

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Upload time: 2024/11/20

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Product Details

Description



Features:

• 2 0.7V current-mode Differential pairs clock outputs
• 2 2.5V 25MHz clock outputs
• 3 AGP clock outputs
• 10 PCI synchronous clocks
• 1 24_48Mhz clock output for super I/O.
• 1 48 MHz clock output for USB.
• 3 14.318MHz REF clock outputs.
• AGP/PCI clock out supports synchronous and asynchronous mode
• Smooth frequency switch with selections from 100 to 400MHz
• 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 Slew rate control and Skew control
• Watch Dog Timer and RESET# output pins
• 48-pin SSOP package


Pinout

Connection Diagram


Specifications

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
- 0.5V to + 4.6V
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
- 55C to + 125
Operating Temperature
0 to + 7
Input ESD protection (Human body model)
2000V



Description

The W83194BR-911 is a Clock Synthesizer for VIA PT880/PM880 chipset. W83194BR-911 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 25MHz clock outputs, all clocks are externally selectable with smooth transitions.

The W83194BR-911 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-911 also has watchdog timer and reset output pin to support auto-reset when systems hanging caused by improper frequency setting.

The W83194BR-911 accepts a 14.318 MHz reference crystal as its input and runs on a 3.3V supply.




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