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CY28551 - Universal Clock Generator

Description

Pin No.

1 2 3 Name PCI6_F VDD48 Type O PWR Free running 33 MHz clock output.

Intel Type-3A output buffer 3.3V power supply for outputs.

SEL24_48#/24_4 I/O, PD 3.3V tolerant input for 24 MHz, 48 MHz selection/24_48MHz clock output.

Features

  • Compliant to Intel® CK505 Selectable CPU clock buffer type for Intel P4 or K8 selection Selectable CPU frequencies Universal clock to support Intel, SiS and VIA platform 0.7V Differential CPU clock for Intel CPU 3.3V Differential CPU clock for AMD K8 100 MHz differential SRC clocks 96 MHz differential dot clock 133 MHz Link clock 48 MHz USB clock 33 MHz PCI clocks.

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Full PDF Text Transcription

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CY28551 Universal Clock Generator for Intel, VIA, and SIS® Features • • • • • • • • • • • Compliant to Intel® CK505 Selectable CPU clock buffer type for Intel P4 or K8 selection Selectable CPU frequencies Universal clock to support Intel, SiS and VIA platform 0.7V Differential CPU clock for Intel CPU 3.3V Differential CPU clock for AMD K8 100 MHz differential SRC clocks 96 MHz differential dot clock 133 MHz Link clock 48 MHz USB clock 33 MHz PCI clocks • • • • • • • Dynamic Frequency Control Dial-A-Frequency® WatchDog Timer Two Independent Overclocking PLLs Low-voltage frequency select input I2C support with readback capabilities Ideal Lexmark Spread Spectrum profile for maximum electromagnetic interference (EMI) reduction • 3.
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