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932S805CGLF Scheda tecnica(PDF) 2 Page - Integrated Device Technology |
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932S805CGLF Scheda tecnica(HTML) 2 Page - Integrated Device Technology |
2 / 19 page ICS932S805C K8 Clock Chip for Serverworks HT2100 Servers 2 IDT® K8 Clock Chip for Serverworks HT2100 Servers 1131D – 05/04/10 Pin Description PIN # PIN NAME TYPE DESCRIPTION 1 X1 IN Crystal input, Nominally 14.318MHz. 2 X2 OUT Crystal output, Nominally 14.318MHz 3 VDDREF PWR Ref, XTAL power supply, nominal 3.3V 4 FS0/REF0 I/O Frequency select latch input pin / 14.318 MHz reference clock. 5 FS1/REF1 I/O Frequency select latch input pin / 14.318 MHz reference clock. 6 FS2/REF2 I/O Frequency select latch input pin / 14.318 MHz reference clock. 7 GNDREF PWR Ground pin for the REF outputs. 8 VDD48 PWR Power pin for the 48MHz output.3.3V 9 48MHz_0 OUT 48MHz clock output. 10 48MHz_1 OUT 48MHz clock output. 11 48MHz_2 OUT 48MHz clock output. 12 GND48 PWR Ground pin for the 48MHz outputs 13 SCLK IN Clock pin of SMBus circuitry, 5V tolerant. 14 SDATA I/O Data pin for SMBus circuitry, 3.3V tolerant. 15 VDDPCI PWR Power supply for PCI clocks, nominal 3.3V 16 **FS3/PCICLK0 I/O Frequency select latch input pin / 3.3V PCI clock output. 17 PCICLK1 OUT PCI clock output. 18 GNDPCI PWR Ground pin for the PCI outputs 19 PD# IN Asynchronous active low input pin used to power down the device. The internal clocks are disabled and the VCO and the crystal are stopped. 20 GND PWR Ground pin. 21 VDDA PWR 3.3V power for the PLL core. 22 GNDA PWR Ground pin for the PLL core. 23 IREF OUT This pin establishes the reference current for the differential current-mode output pairs. This pin requires a fixed precision resistor tied to ground in order to establish the appropriate current. 475 ohms is the standard value. 24 VDDA PWR 3.3V power for the PLL core. 25 SRCCLKT0 OUT True clock of differential SRC clock pair. 26 SRCCLKC0 OUT Complement clock of differential SRC clock pair. 27 SRCCLKT1 OUT True clock of differential SRC clock pair. 28 SRCCLKC1 OUT Complement clock of differential push-pull SRC clock pair. 29 SRCCLKT2 OUT True clock of differential SRC clock pair. 30 SRCCLKC2 OUT Complement clock of differential SRC clock pair. 31 VDDSRC PWR Supply for SRC clocks, 3.3V nominal 32 GNDSRC PWR Ground pin for the SRC outputs |
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