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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ICS951402 датащи(PDF) 1 Page - Renesas Technology Corp |
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ICS951402 датащи(HTML) 1 Page - Renesas Technology Corp |
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1 / 24 page  Integrated Circuit Systems, Inc. ICS951402 Advance Information 0660—05/05/05 Block Diagram Pin Configuration Recommended Application: ATI chipset, P4 system, Banias system Output Features: • 2 - Pairs of differential CPUCLKs (differential current mode) • 1 - SDRAM @ 3.3V • 8 - PCI @3.3V (selectable 33/66 MHz) (2 free-running) • 2 - AGP @ 3.3V • 2- 48MHz, @3.3V fixed. • 1- 24/48MHz, @3.3V selectable by I 2C (Default is 24MHz) • 3- REF @3.3V, 14.318MHz. Features/Benefits: • Support for Intel Banias power management features • Programmable output frequency, divider ratios, output rise/ falltime, output skew. • Programmable spread percentage for EMI control. • Watchdog timer technology to reset system if system malfunctions. • Programmable watch dog safe frequency. • Support I 2C Index read/write and block read/write operations. • Supports spread spectrum for EMI reduction; default is spread spectrum ON. Programmable Timing Control Hub™ for P4™ processor * These inputs have a 120K pull up to VDD. ** These inputs have a 120K pull down to GND. 48-Pin TSSOP & SSOP Power Groups VDDCPU = CPU VDDPCI = PCICLK_F, PCICLK VDDSD = SDRAM AVDD48 = 48MHz, 24MHz, fixed PLL AVDD = Analog Core PLL VDDAGP= AGP VDDREF = Xtal, REF Skew Requirements VDDREF 1 48 VDDSDR FS0/REF0 2 47 SDRAM_OUT FS1/REF1 3 46 GNDSDR FS2/REF2 4 45 CPU_STOP#* GNDREF 5 44 CPUCLKT1 X1 6 43 CPUCLKC1 X2 7 42 VDDCPU GND 8 41 GNDCPU VDD 9 40 CPUCLKT0 *VttPWR_GD/PD# 10 39 CPUCLKC0 PCI66/33#_SEL 11 38 IREF PCI_STOP#* 12 37 GND VDDPCI 13 36 AVDD FS3/PCICLK_F0 14 35 SCLK FS4/PCICLK_F1 15 34 SDATA PCICLK016 33GNDAGP PCICLK117 32AGPCLK0 GNDPCI 18 31 AGPCLK1 VDDPCI 19 30 VDDAGP PCICLK220 29AVDD48 PCICLK321 2848MHz_0 PCICLK422 2748MHz_1 PCICLK5 23 26 24_48MHz/SEL24_48#MHz** GNDPCI 24 25 GND48 PCI-PCI <±350ps AGP-AGP <±350ps CPU-AGP <±500ps CPU-PCI <±500ps CPU-SDRAM <±1ns AGP-PCI AGP leading <±1ns I REF CPU DIVDER PLL2 PLL1 Spread Spectrum 48MHz (0:1) 24_48MHz PCICLK (5:0) AGP (1:0) PCICLK_F (1:0) 2 2 1 6 3 X1 X2 XTAL OSC SDRAM SDRAM_OUT PCI DIVDER Stop SDATA SCLK FS (4:0) PD# PCI_STOP# CPU_STOP# PD#/Vtt_PWRGD PCI66/33#SEL 24_48SEL# Control Logic Config. Reg. / 2 REF (2:0) AGP DIVDER Stop 2 2 CPUCLKT (1:0) CPUCLKC (1:0) |
Аналогичный номер детали - ICS951402 |
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Аналогичное описание - ICS951402 |
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ссылки URL |
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