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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ICS94241 датащи(PDF) 1 Page - Renesas Technology Corp |
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ICS94241 датащи(HTML) 1 Page - Renesas Technology Corp |
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1 / 17 page  Integrated Circuit Systems, Inc. ICS94241 0453C—10/26/04 Pin Configuration Recommended Application: VIA PL133-T style chipset with Intel differential PIII processor Output Features: • 2 - CPUs @2.5V • 13 - SDRAM @ 3.3V • 7 - PCI @3.3V, • 1 - 48MHz, @3.3V • 1 - 24MHz @ 3.3V • 2 - REF @3.3V, 14.318MHz. Features: • Programmable ouput frequency • Programmable ouput rise/fall time • Programmable output to output skew • Programmable spread spectrum for EMI control • Real time system reset output • Watchdog timer technology to reset system if over-clocking causes malfunction • Uses external 14.318MHz crystal Key Specifications: • CPU – CPU: <175ps • SDRAM - SDRAM: <500ps • PCI – PCI: <500ps • CPU-SDRAM: <500ps • CPU(early)-PCI: Min=1.0ns, Typ=2.0ns, Max=4.0ns Programmable TCH™ for Differential PIII™ Processor Block Diagram 48-Pin 300mil SSOP VDDREF GNDREF X1 X2 VDDPCI *FS4/PCICLK0 *FS3/PCICLK1 GNDPCI PCICLK2 PCICLK3 PCICLK4 PCICLK5 PCICLK6 VDDPCI BUFFER_IN GNDSDR SDRAM12 SDRAM11 VDDSDR SDRAM10 SDRAM9 GND48 SDATA SCLK VTT_PWRGD# REF0 REF1/FS2** GNDCPU CPUCLK_CS CPUCLK0 VDDLCPU RESET# SDRAM0 GNDSDR SDRAM1 SDRAM2 VDDSDR SDRAM3 SDRAM4 GNDSDR SDRAM5 SDRAM6 VDDSDR SDRAM7 SDRAM8 AVDD48 48MHz/FS0** 24MHz/FS1** 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 * Internal Pull-up Resistor of 120K to VDD ** Internal Pull-down resistor of 120K to GND 1. This output has 1.5 to 2X drive strength Functionality For additional margin testing frequencies refer to pg 5 frequency table. Bit2 Bit7 Bit6 Bit5 Bit4 FS4 FS3 FS2 FS1 FS0 0 0 0 0 0 66.67 33.33 +/- 0.25 Center Spread 0 0 0 0 1 66.67 33.33 0 to -0.5% Down Spread 0 0 0 1 0 68.67 34.33 ± 0.25 Center Spread 0 0 0 1 1 71.34 35.66 +/- 0.25 Center Spread 0 1 0 0 0 100.00 33.33 +/- 0.25 Center Spread 0 1 0 0 1 100.00 33.33 0 to -0.5% Down Spread 0 1 0 1 0 103.00 34.33 +/- 0.25 Center Spread 0 1 0 1 1 107.00 35.67 +/- 0.25 Center Spread 1 0 0 0 0 200.00 33.33 +/- 0.25 Center Spread 1 0 0 0 1 200.00 33.33 0 to -0.5% Down Spread 1 0 0 1 0 206.00 34.33 +/- 0.25 Center Spread 1 0 0 1 1 214.00 35.67 +/- 0.25 Center Spread 1 1 0 0 0 133.33 33.33 +/- 0.25 Center Spread 1 1 0 0 1 133.33 33.33 0 to -0.5% Down Spread 1 1 0 1 0 137.33 34.33 +/- 0.25 Center Spread 1 1 0 1 1 142.67 35.67 +/- 0.25 Center Spread Spread Percentage CPUCLK PCICLK |
Аналогичный номер детали - ICS94241 |
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Аналогичное описание - ICS94241 |
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