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ICS9159-02CW28, ICS9159-20, ICS9159C

Table of contents:
Info of ICS9159-02CW28
Info of ICS9159-20
Info of ICS9159C

ICS9159-02CW28, ICS9159-20, ICS9159C Selling Leads, Datasheet

MFG:TI Package Cooled:SOP D/C:New

ICS9159-02CW28, ICS9159-20, ICS9159C Picture

ICS9159-02CW28, ICS9159-20, ICS9159C Datasheet download

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Part Number: ICS9159-02CW28

MFG: TI

Package Cooled: SOP

D/C: New

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ICS9159-20 General Description

The ICS9159-20 is a low-cost frequency generator designed specifically for SIS551X chip set and SIS6205 VGA controller. The integrated buffer minimizes skew. A 14.31818 MHz XTAL oscillator provides the reference clock to generate standard Pentium™ frequencies. The CPU clock makes gradual frequency transitions without violating the PLL timing of internal microprocessor clock multipliers.

Both synchronous and asynchronous bus designs are supported. For chip sets that require an early CPU clock, the buffers are driven by the CPU clock. In this configuration, the CPU clock becomes the early clock and the output of the uncommitted buffers become the bus synchronized bus clocks.

ICS9159-20 Maximum Ratings

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

Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. These ratings are stress specifications only and functional operation of the device at these or any other conditions above those listed in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect product reliability.

ICS9159-20 Features

• One selectable CPU clocks operate up to 66.66 MHz
• 5 uncommitted buffers
• Maximum CPU jitter of ±200ps
• 7 BUS clocks support sync or async bus operation
• 500ps skew window for all synchronous clock edges
• Integrated buffer outputs drive up to 30pF loads
• 3.1V - 3.5V supply range
• 28-pin 300-mil SOIC package
• Supports chip sets requiring early CPU clocking

ICS9159-20 Typical Application

• Ideal for green Pentium and P6 PCI systems based on the SIS5596 chip set

ICS9159-20 Connection Diagram

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