ics9248-171 ETC-unknow, ics9248-171 Datasheet
ics9248-171
Related parts for ics9248-171
ics9248-171 Summary of contents
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... AVDD = Xtal, Core PLL AVDD48 = 48MHz, Fixed PLL ADVANCE INFORMATION documents contain information on products in the formative or design phase development. Characteristic data and other specifications are design goals. ICS reserves the right to change or discontinue these products without notice. ICS9248-171 Advance Information 48 1 GND 47 ...
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... ICS9248-171 Advance Information Pin Descriptions PIN NUMBER PIN NAME 1 1 DG_STOP PD 11, 16, 23, 29, GND 34, 41 17, 28, 35, 40 VDD 6 AVDD 2, 3 FS0 7 REF0 2, 3 FS1 9 AGP0 10 AGP1 PCICLK_F FS2 PCICLK 20, 19, 15, 14, 13 (5:4) (2:0) PCICLK3 ODE ...
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... General Description The ICS9248-171 is a main clock synthesizer chip for AMD-K7 based systems with ALI 1647 style chipset. This provides all clocks required for such a system. Spread spectrum may be enabled through I This simplifies EMI qualification without resorting to board design iterations or costly shielding. The ICS9248-171 employs a proprietary closed loop design, which tightly controls the percentage of spreading over process and temperature variations ...
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... ICS9248-171 Advance Information Serial Configuration Command Bitmap Byte0: Functionality and Frequency Select Register (default = ...
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... Note: Don’t write into this register, writing into this register can cause malfunction 5 ICS9248-171 Advance Information ...
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... ICS9248-171 Advance Information Absolute Maximum Ratings Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V Logic Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND –0 Ambient Operating Temperature . . . . . . . . . . . . . 0°C to +70°C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . –65°C to +150°C Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. These ratings are stress specifications only and functional operation of the device at these or any other conditions above those listed in the operational sections of the specifications is not implied ...
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... Note 2 Note 2 Note required for switching, where /2-150mV; Max=(Vpullup (external) 7 ICS9248-171 Advance Information MIN TYP MAX 1 1.2 0.4 18 0.9 0.9 V pullup(external) 0.4 + 0.6 V pullup(external) 0.2 + 0.6 550 1100 45 55 250 250 -250 +250 is the "true" ...
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... ICS9248-171 Advance Information Electrical Characteristics - PCICLK 70º 3.3 V +/-5 PARAMETER SYMBOL Output High Voltage V OH1 Output Low Voltage V OL1 Output High Current I OH1 Output Low Current I OL1 1 Rise Time Fall Time Duty Cycle Skew Guaranteed by design, not 100% tested in production ...
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... (unless otherwise stated) CONDITIONS 50% 9 ICS9248-171 Advance Information MIN TYP MAX UNITS 2.4 V 0 MIN TYP MAX UNITS 2 V 0.4 ...
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... ICS9248-171 Advance Information General I The information in this section assumes familiarity with I For more information, contact ICS for an I How to Write: • Controller (host) sends a start bit. • Controller (host) sends the write address D2 • ICS clock will acknowledge • Controller (host) sends a dummy command code • ...
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... The programming resistors should be located close to the series termination resistor to minimize the current loop area more important to locate the series termination resistor close to the driver than the programming resistor. Via to VDD 2K 8.2K Clock trace to load Series Term. Res. Fig ICS9248-171 Advance Information ...
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... Advance Information PCI_STOP# Timing Diagram PCI_STOP asynchronous input to the ICS9248-171 used to turn off the PCICLK clocks for low power operation. PCI_STOP# is synchronized by the ICS9248-171 internally. The minimum that the PCICLK clocks are enabled (PCI_STOP# high pulse least 10 PCICLK clocks. PCICLK clocks are stopped in a low state and started with a full high pulse width guaranteed ...
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... Crystal Notes: 1. All timing is referenced to the Internal CPUCLK (defined as inside the ICS9248-171 device shown, the outputs Stop Low on the next falling edge after PD# goes low asynchronous input and metastable conditions may exist. This signal is synchronized inside this part. ...
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... ICS9248-171 Advance Information Ordering Information ICS9248yF-171-T Example: ICS XXXX PPP - T Designation for tape and reel packaging Pattern Number ( digit number for parts with ROM code patterns) Package Type Revision Designator (will not correlate with datasheet revision) Device Type (consists digit numbers) Prefix Third party brands and names are the property of their respective owners ...
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... ICS Standard Device ADVANCE INFORMATION documents contain information on products in the formative or design phase development. Characteristic data and 15 other specifications are design goals. ICS reserves the right to change or discontinue these products without notice. ICS9248-171 Advance Information In Millimeters In Inches COMMON DIMENSIONS COMMON DIMENSIONS ...