Electronic Components Datasheet Search |
|
ICS9250YF-13 Datasheet(PDF) 1 Page - Integrated Circuit Systems |
|
ICS9250YF-13 Datasheet(HTML) 1 Page - Integrated Circuit Systems |
1 / 15 page Integrated Circuit Systems, Inc. General Description Features ICS9250-13 Block Diagram Pentium is a trademark of Intel Corporation I 2C is a trademark of Philips Corporation Frequency Generator & Integrated Buffers for PENTIUM/ProTM 9250-13 Rev A 3/25/99 Pin Configuration 3.3Voutputs: SDRAM, PCI, REF, 48/24MHz 2.5V or 3.3V outputs: CPU 20 ohm CPU clock output impedance 20 ohm PCI clock output impedance Skew from CPU (earlier) to PCI clock - 1 to 4 ns, center 2.6 ns. No external load cap for CL=18pF crystals ±250 ps CPU, PCI clock skew 400ps (cycle to cycle) CPU jitter Smooth frequency switch, with selections from 50 to 83.3 MHz CPU. I2C interface for programming 2ms power up clock stable time Clock duty cycle 45-55%. 56 pin 300 mil SSOP package 3.3V operation, 5V tolerant input. 56-Pin SSOP Power Groups VDDREF=REF(0:1),X1,X2 VDDPCI=PCICLK_F,PCICLK(0:5) VDDSDR = SDRAM (0:11), supply for PLL core, VDD48=24MHz,48MHz VDDLIOAPIC=IOAPIC VDDL2CPU= CPUCLK(0:3) * Internal Pull-up Resistor of 120K to VDD on indicated inputs The ICS9250-13 generates all clocks required for high speed RISC or CISC microprocessor systems such as Intel PentiumPro or Cyrix. Eight different reference frequency multiplying factors are externally selectable with smooth frequency transitions. Spread spectrum may be enabled through I2C programming. Spread spectrum typically reduces system EMI by 8dB to 10dB. This simplifies EMI qualification without resorting to board design iterations or costly shielding. The ICS9250-13 employs a proprietary closed loop design, which tightly controls the percentage of spreading over process and temperature variations. Recomended Application: 440LX/EX type chipset Motherboard single chip clock solution. ICS reserves the right to make changes in the device data identified in this publication without further notice. ICS advises its customers to obtain the latest version of all device data to verify that any information being relied upon by the customer is current and accurate. |
Similar Part No. - ICS9250YF-13 |
|
Similar Description - ICS9250YF-13 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |