ICS952003
ICS952003 is Programmable Timing Control Hub manufactured by ICS.
Features
:
- 2
- Pairs of differential CPUCLKs (differential current mode)
- 1
- SDRAM @ 3.3V
- 8
- PCI @3.3V
- 2
- AGP @ 3.3V
- 2
- ZCLKs @ 3.3V
- 1- 48MHz, @3.3V fixed.
- 1- 24/48MHz, @3.3V selectable by I2C (Default is 24MHz)
- 3- REF @3.3V, 14.318MHz. Features
/Benefits:
- Selectable asynchronous/synchronous SDRAM, AGP, ZCLK and PCI outputs
- 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 I2C Index read/write and block read/write operations.
- For PC133 SDRAM system use the ICS9179-16 as the memory buffer.
- For DDR SDRAM system use the ICS93705 or ICS93722 as the memory buffer.
- Uses external 14.318MHz crystal. Key Specifications:
- PCI
- PCI output skew: < 500ps
- CPU
- SDRAM output skew: < 1ns
- AGP
- AGP output skew: <150ps
Pin Configuration
VDDREF
- - FS0/REF0
- - FS1/REF1
- - FS2/REF2 GNDREF X1 X2 GNDZ ZCLK0 ZCLK1 VDDZ
- PCI_STOP# VDDPCI
- - FS3/PCICLK_F0
- - FS4/PCICLK_F1 PCICLK0 PCICLK1 GNDPCI VDDPCI PCICLK2 PCICLK3 PCICLK4 PCICLK5 GNDPCI 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 VDDSD SDRAM GNDSD CPU_STOP#- CPUCLKT_1 CPUCLKC_1 VDDCPU GNDCPU CPUCLKT_0 CPUCLKC_0 IREF GNDA VDDA SCLK SDATA PD#- /Vtt_PWRGD GNDAGP AGPCLK0 AGPCLK1 VDDAGP VDDA48 48MHz 24_48MHz/MULTISEL- GND48
48-Pin 300-mil...
