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ICS9LPRS464 Datasheet(PDF) 1 Page - Renesas Technology Corp |
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ICS9LPRS464 Datasheet(HTML) 1 Page - Renesas Technology Corp |
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1 / 24 page  ICS9LPRS464 IDTTM/ICSTM System Clock Chip for ATI RS/RD600 series chipsets using AMD CPUs 1377A—04/07/08 System Clock Chip for ATI RS/RD600 series chipsets using AMD CPUs DATASHEET 1 Description Output Features ATI RD/RS600 series systems using AMD CPUs • Integrated Series Resistors on differential outputs • Greyhound Compatible CPU outputs • 2 - 0.7V Low Power differential CPU pairs • 6 - 0.7V Low Power differential SRC pairs • 2 - 0.7V Low Power differential ATIG pairs • 1 - 66 MHz HyperTransport clock • 2 - 48MHz USB clocks • 3 - 14.318MHz Reference clocks Features/Benefits: Key Specifications • CPU outputs cycle-to-cycle jitter <150ps • SRC outputs cycle-to-cycle jitter < 125ps • ATIG outputs cycle-to-cycle jitter < 125ps • +/- 100ppm frequency accuracy on all outputs if REF is tuned to +/-100ppm • 3 - Programmable Clock Request pins for SRC and ATIG clocks • ATIGCLKs are programmable for frequency • Spread Spectrum for EMI reduction • Outputs may be disabled via SMBus • External crystal load capacitors for maximum frequency accuracy Pin Configuration VDD GND 5 8 USB_48 outputs 14,23,26,36 15,22,27,37 SRCCLK outputs 33 32 ATIGCLK differential outputs 42 41 Analog, PLL 46 45 CPUCLK8 differential outputs 52 50 HTTCLK output 2 1 REF outputs Pin Number Description FS2 FS1 FS0 CPU MHz HTT MHz SRC MHz ATIG MHz USB MHz 00 0Hi-Z Hi-Z 100.00 100.00 48.00 0 0 1 X / 2 X / 3 100.00 100.00 48.00 0 1 0 230.00 76.67 100.00 100.00 48.00 0 1 1 240.00 80.00 100.00 100.00 48.00 1 0 0 100.00 66.66 100.00 100.00 48.00 1 0 1 133.33 66.66 100.00 100.00 48.00 1 1 0 166.67 66.66 100.00 100.00 48.00 1 1 1 200.00 66.66 100.00 100.00 48.00 Funtionality Power Groups GNDREF 1 56 FS0/REF0 VDDREF 2 55 FS1/REF1 X1 3 54 FS2/REF2 X2 4 53 **PD VDD48 5 52 VDDHTT 48MHz_0 6 51 HTTCLK0 48MHz_1 7 50 GNDHTT GND48 8 49 *CLKREQA# SMBCLK 9 48 CPUKG0T_LPR SMBDAT 10 47 CPUKG0C_LPR RESET_IN# 11 46 VDDCPU SRC5T_LPR 12 45 GNDCPU SRC5C_LPR 13 44 CPUKG1T_LPR VDDSRC 14 43 CPUKG1C_LPR GNDSRC 15 42 VDDA SRC4T_LPR 16 41 GNDA SRC4C_LPR 17 40 NC SRC3T_LPR 18 39 SRC0T_LPR SRC3C_LPR 19 38 SRC0C_LPR SRC2T_LPR 20 37 GNDSRC SRC2C_LPR 21 36 VDDSRC GNDSRC 22 35 ATIG0T_LPR VDDSRC 23 34 ATIG0C_LPR SRC1T_LPR 24 33 VDDATIG SRC1C_LPR 25 32 GNDATIG VDDSRC 26 31 ATIG1T_LPR GNDSRC 27 30 ATIG1C_LPR *CLKREQB# 28 29 *CLKREQC# 56-Pin SSOP/TSSOP * Internal Pull-Up Resistor ** Internal Pull-Down Resistor |
Similar Part No. - ICS9LPRS464 |
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Similar Description - ICS9LPRS464 |
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