W149 440BX AGPset Spread Spectrum Frequency Synthesizer Features • Maximized EMI suppression using Cypress’s Spread Spectrum Technology • Single chip system frequency synthesizer for Intel® 440BX AGPset • Two copies of CPU output • Six copies of PCI output • One 48-MHz output for USB • One 24-MHz output for SIO • Two buffered reference outputs • One IOAPIC output • Thirteen SDRAM outputs provide support for 3 DIMMs • Spread Spectrum feature always enabled • I2C™ interface for programming • Power management control inputs • Smooth CPU frequency switching from 66.
8–124 MHz VDDQ3: .
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3V±5% VDDQ2: .
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