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CY28372OXC Datasheet(PDF) 1 Page - SpectraLinear Inc |
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CY28372OXC Datasheet(HTML) 1 Page - SpectraLinear Inc |
1 / 17 page SiS 746 AMD Athlon™/AMD Duron™ Clock Synthesizer CY28372 Rev 1.0, November 20, 2006 Page 1 of 17 2200 Laurelwood Road, Santa Clara, CA 95054 Tel:(408) 855-0555 Fax:(408) 855-0550 www.SpectraLinear.com Features • Supports AMD Athlon /Duron CPU • 3.3V and 2.5V power supply • Eight copies of PCI clocks • One 48-MHz USB clock • Two copies of ZCLK clocks • One 48 MHz/24 MHz programmable SIO clock • One differential CPU clock (opendrain) • One singled-ended CPU clock (opendrain) • SMBus support with readback capabilities • Spread Spectrum electromagnetic interference (EMI) reduction • 48-pin SSOP package CPU ZCLK REF PCI AGP IOAPIC 48M 24_48M x 2 x 2 x 3 x 8 x 2 x 2 x 1 x 1 Block Diagram Pin Configuration VDD_REF CPUT0, CPUC0 XTAL PLL Ref Freq XOUT XIN VDD_PCI OSC SCLK PLL 1 I2C Logic VDD_48 SDATA VDD_AGP Divider Network VDD_CPU **FS0:3 2 SSOP-48 REF0:2 AGP0:1 PCIF0:1 PCI0:5 48 MHz 24_48MHz CPUT1 VDD_REF **FS0/REF0 **FS1/REF1 REF2 GND_REF XIN XOUT GND_Z ZCLK0 ZCLK1 VDD_Z *PCI_STP# VDD_PCI **FS2/PCIF0 *FS3/PCIF1 PCI0 PCI1 GND_PCI VDD_PCI PCI2 PCI3 PCI4 PCI5 GND_PCI 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 28 27 26 25 32 31 30 29 VDD_APIC IOAPIC1 IOAPIC0 GND_APIC CPU_STP#* CPUT1 VDD_CPU GND_CPU CPUT0 CPUC0 VDD_CPU GNDA VDDA SCLK SDATA PD#* GND_AGP AGP0 AGP1 VDD_AGP VDD_48 48MHZ 24_48MHZ GND_48 ZCLK0:1 VDD_Z APIC0:1 VDD_APIC PCI_STP# CPU_STP# * : Internal Pull-up 150k ** : Internal Pull-down 150k Fract. Aligner PD# PLL2 2 |
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