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CY28RS480

Cypress Semiconductor
Part Number CY28RS480
Manufacturer Cypress Semiconductor
Description Clock Generator
Published Jun 10, 2012
Detailed Description CY28RS480 Clock Generator for ATI RS480 Chipset Features • Supports AMD CPU • 200-MHz differential CPU clock pairs • ...
Datasheet PDF File CY28RS480 PDF File

CY28RS480
CY28RS480

Overview
CY28RS480 Clock Generator for ATI RS480 Chipset Features • Supports AMD CPU • 200-MHz differential CPU clock pairs • 100-MHz differential SRC clocks • 48-MHz USB clock • 33-MHz PCI clock • 66-MHz HyperTransport clock • I2C support with readback capabilities • Ideal Lexmark Spread Spectrum profile for maximum electromagnetic interference (EMI) reduction • 3.
3V power supply • 56-pin SSOP and TSSOP packages CPU x2 SRC x8 HTT66 x1 PCI x1 REF x3 USB_48 x1 Block Diagram XIN XOUT CPU_STP# CLKREQ[0:1]# Pin Configuration VDD_REF REF[0:2] VDD_CPU CPUT[0:1], CPUC[0:1], VDD_SRC SRCT[0:5],SRCC[0:5] VDD_SRCS SRCST[0:1],SRCSC[0:1] VDD_PCI PCI VDD_HTT HTT66 XTAL OSC PLL1 PLL Ref Freq Divider Network IREF www.
DataSheet.
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kr PD VDD_48 MHz PLL2 USB_48 SDATA SCLK I2C Logic XIN XOUT VDD_48 USB_48 VSS_48 NC SCLK SDATA NC CLKREQ#0 CLKREQ#1 SRCT5 SRCC5 VDD_SRC VSS_SRC SRCT4 SRCC4 SRCT3 SRCC3 VSS_SRC VDD_SRC SRCT2 SRCC2 SRCT1 SRCC1 VSS_SRC SRCST1 SRCSC1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16...


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