Integrated Circuit System ICS94236
The ICS94236 is a main clock synthesizer chip for AMD-K7 based systems with VIA style chipset. This provides all clocks required for such a system. The ICS94236 belongs to ICS new generation of programmable system clock generators.| Part No. | ICS94236 |
|---|---|
| Datasheet | ICS94236 Download |
| Manufacturer |  Integrated Circuit System |
| Description | Programmable System Clock Chip |
| Buy | Stock & Price |
FEATURES
:● 1 - Differential pair open drain CPU clocks
● 1 - CPU clock @ 3.3V
● 13 - SDRAM @ 3.3V
● 6 - PCI @3.3V,
● 1 - 48MHz, @3.3V fixed.
● 1 - 24/48MHz @ 3.3V
● 2 - REF @3.3V, 14.318MHz.
FEATURES
:● Programmable ouput frequency.
● Programmable ouput rise/fall time.
● Programmable PCI_F and PCICLK skew.
● Spread spectrum for EMI control typically by 7dB to 8dB, with programmable spread percentage.
● Watchdog timer technology to reset system if over-clocking causes malfunction.
● Uses external 14.318MHz crystal.
● FS pins for frequency select Pin Configuration VDDREF REF0 GND X1 X2 VDDPCI 1 FS4/PCICLK_F **FS3/PCICLK0 GND *SEL24_48#/PCICLK1 PCICLK2 PCICLK3 PCICLK4 VDDPCI BUFFER IN GND SDRAM11 SDRAM10 VDDSDR SDRAM9 SDRAM8 GND SDATA SCLK 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 REF1/FS2** GND CPUCLK GND CPUCLKC0 CPUCLKT0 VDDCPU PD#* SDRAM_OUT GND SDRAM0 SDRAM1 VDDSDR SDRAM2 SDRAM3 GND SDRAM4 SDRAM5 VDDSDR SDRAM6 SDRAM7 VDD48 48MHz/FS0* 24/48MHz/FS1** 48-Pin 300mil SSOP * ** 1 Internal Pull-up Resistor of 120K to VDD.
