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ICS9159-07

Features: • Three CPU clocks operate up to 65 MHz at 3.3V, plus smooth transitions• Selection of nine frequencies, tristate• Seven BUS clocks support sync or async bus operation• Integrated buffer outputs drive up to 10pF loads• 3.13 to 5.25V (3.3±5%, 5.0±5%) supply r...

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SeekIC No. : 004371192 Detail

ICS9159-07: Features: • Three CPU clocks operate up to 65 MHz at 3.3V, plus smooth transitions• Selection of nine frequencies, tristate• Seven BUS clocks support sync or async bus operation...

ICS9159-07 Data Sheet

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Part Number:
ICS9159-07
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: 2024/11/21

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Product Details

Description



Features:

• Three CPU clocks operate up to 65 MHz at 3.3V, plus smooth transitions
• Selection of nine frequencies, tristate
• Seven BUS clocks support sync or async bus operation
• Integrated buffer outputs drive up to 10pF loads
• 3.13 to 5.25V (3.3±5%, 5.0±5%) supply range
• 28-pin SOIC package
• Clock duty cycles 45/55


Application

• Ideal for NexGen Nx586 PCI-based motherboard designs


Pinout

Connection Diagram


Specifications

Supply Voltage .................................................................................................... 7.0 V
Logic Inputs ....................................................................... GND 0.5 V to VDD +0.5 V
Ambient Operating Temperature ......................................................... 0°C to +70°C
Storage Temperature .................................................................... 65°C to +150°C


Description

The ICS9159-07 is a low-cost frequency generator designed specifically for NexGen Nx586 systems. The integrated buffer minimizes skew and provides the CPU clocks required by the NexGen Nx586 microprocessor. A 14.318 MHz XTAL oscil-lator provides the reference clock to generate standard Nx586 frequencies. The CPU clock makes gradual frequency transi-tions without violating the PLL timing of internal microproc-essor clock multipliers.

Either synchronous (2XCPU/3) or asynchronous (32 MHz) PCI bus operation of the ICS9159-07 can be selected. Green PC systems are supported through doze mode.




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