ics9248-189 ETC-unknow, ics9248-189 Datasheet
ics9248-189
Related parts for ics9248-189
ics9248-189 Summary of contents
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... VDDA = VDD for Core PLL SDRAM_F VDDREF = REF, Xtal 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. ICS9248-189 Advance Information Pin Configuration 48 1 REF0 47 ...
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... ICS9248-189 Advance Information General Description The ICS9248-189 is a main clock synthesizer chip for AMD-K7 based note book systems with VIA 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 ICS9248-189 employs a proprietary closed loop design, which tightly controls the percentage of spreading over process and temperature variations ...
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... ICS9248-189 Advance Information ...
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... ICS9248-189 Advance Information Byte 0: CPU, Active/Inactive Register (1= enable disable ...
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... ICS9248-189 Advance Information ...
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... ICS9248-189 Advance Information Absolute Maximum Ratings Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5V 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 ICS9248-189 Advance Information MIN TYP MAX UNITS 2.4 0.4 - 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 ...
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... ICS9248-189 Advance Information Electrical Characteristics - CPUCLK_CS 70º 3.3 V +/-5 PARAMETER SYMBOL Output High Voltage V OH2B Output Low Voltage V OL2B Output High Current I OH2B Output Low Current I OL2B 1 Rise Time t r2B 1 Fall Time t f2B 1 Duty Cycle d t2B 1 Skew t sk2B 1 Jitter, Cycle-to-cycle ...
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... L CONDITIONS ICS9248-189 Advance Information MIN TYP MAX UNITS 2.6 V 0 200 ps MIN TYP MAX UNITS 2.4 V 0 ...
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... ICS9248-189 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 ICS9248-189 Advance Information ...
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... VCO Crystal Notes: 1. All timing is referenced to the Internal CPUCLK (defined as inside the ICS9248-189 device shown, the outputs Stop Low on the next falling edge after PD# goes low. 3. CLK_STOP input pin which stops all clocks, expcpt XTAL and CPUCLKT0/CPUCLKC0 4. The shaded sections on the VCO and the Crystal signals indicate an active clock. ...
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... CPU_STOP asychronous input to the clock synthesizer used to turn off the CPU clocks for low power operation. CPU_STOP# is synchronized by the ICS9248-189. The minimum that the CPU clock is enabled (CPU_STOP# high pulse) is 100 CPU clocks. All other clocks will continue to run while the CPU clocks are disabled. The CPU clocks will always be stopped in a low state and start in such a manner that guarantees the high pulse width is a full pulse ...
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... ICS9248-189 Advance Information Ordering Information ICS9248yF-189-T Example: ICS XXXX PPP - T Third party brands and names are the property of their respective owners. SYMBOL VARIATIONS N 48 Designation for tape and reel packaging Pattern Number ( digit number for parts with ROM code patterns) ...
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... N 48 G=TSSOP 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. ICS9248-189 Advance Information In Millimeters In Inches COMMON DIMENSIONS MIN MAX MIN ...