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ICS9148-10 Datasheet

Part Number ICS9148-10
Manufacturers Integrated Circuit Systems
Logo Integrated Circuit Systems
Description Pentium/ProTM System Clock Chip
Datasheet ICS9148-10 DatasheetICS9148-10 Datasheet (PDF)

Integrated Circuit Systems, Inc. ICS9148-10 Pentium/ProTM System Clock Chip General Description The ICS9148-10 is a Clock Synthesizer chip for Pentium and PentiumPro CPU based Desktop/Notebook systems that will provide all necessary clock timing. Features include four CPU and eight PCI clocks. Three reference outputs are available equal to the crystal frequency. Additionally, the device meets the Pentium power-up stabilization requirement, assuring that CPU and PCI clocks are stable within 2ms.

  ICS9148-10   ICS9148-10






Part Number ICS9148-18
Manufacturers Integrated Circuit Systems
Logo Integrated Circuit Systems
Description Pentium/ProTM System Clock Chip
Datasheet ICS9148-10 DatasheetICS9148-18 Datasheet (PDF)

Integrated Circuit Systems, Inc. ICS9148-18 Pentium/ProTM System Clock Chip General Description The ICS9148-18 is a Clock Synthesizer chip for Pentium and PentiumPro CPU based Desktop/Notebook systems that will provide all necessary clock timing. Features include two CPU and six PCI clocks. One reference output is available equal to the crystal frequency. Additionally, the device meets the Pentium power-up stabilization requirement, acheiving stable CPU and PCI clocks 2ms after power-up. PD# p.

  ICS9148-10   ICS9148-10







Part Number ICS9148-17
Manufacturers Integrated Circuit Systems
Logo Integrated Circuit Systems
Description Frequency Generator & Integrated Buffers
Datasheet ICS9148-10 DatasheetICS9148-17 Datasheet (PDF)

Integrated Circuit Systems, Inc. ICS9148-17 Frequency Generator & Integrated Buffers for PENTIUM/ProTM General Description The ICS9148-17 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. Features include four CPU, six PCI, two AGP (=2xPCI) and Twelve SDRAM clocks. Two reference outputs are available equal to the .

  ICS9148-10   ICS9148-10







Part Number ICS9148-13
Manufacturers Integrated Circuit Systems
Logo Integrated Circuit Systems
Description Frequency Generator & Integrated Buffers
Datasheet ICS9148-10 DatasheetICS9148-13 Datasheet (PDF)

Integrated Circuit Systems, Inc. ICS9148-13 Frequency Generator & Integrated Buffers for PENTIUMTM General Description The ICS9148-13 generates all clocks required for high speed RISC or CISC microprocessor systems such as Intel Pentium and PentiumPro. An output enable is provided for testability. Spread Spectrum is available to modulate the CPU and BUS PLL (leaving the REF, 24, 48 MHz operating normally). The SS_EN# pin enables the spreading when low. The SS_TYPE pin choses ±0.5% (nominally) .

  ICS9148-10   ICS9148-10







Part Number ICS9148-12
Manufacturers Integrated Circuit Systems
Logo Integrated Circuit Systems
Description Pentium/ProTM System Clock Chip
Datasheet ICS9148-10 DatasheetICS9148-12 Datasheet (PDF)

Integrated Circuit Systems, Inc. ICS9148-12 Pentium/ProTM System Clock Chip General Description The ICS9148-12 is a Clock Synthesizer chip for Pentium and PentiumPro CPU based Desktop/Notebook systems that will provide all necessary clock timing. Features include four strong CPU, seven PCI and eight SDRAM clocks. Two reference outputs are available equal to the crystal frequency. Stronger drive CPUCLK outputs typically provide greater than 1 V/ns slew rate into 20pF loads. This device meets ri.

  ICS9148-10   ICS9148-10







Part Number ICS9148-111
Manufacturers Integrated Circuit Systems
Logo Integrated Circuit Systems
Description Frequency Generator & Integrated Buffers
Datasheet ICS9148-10 DatasheetICS9148-111 Datasheet (PDF)

Integrated Circuit Systems, Inc. ICS9148-111 Frequency Generator & Integrated Buffers for PENTIUM/ProTM Recommended Application: ALI (Aladdin V™ ) mobile. Output Features: • 3 - CPUs @ 2.5V/3.3V, up to 100MHz. • 3 - AGPCLK @ 3.3V • 13 - SDRAM @ 3.3V, up to 100MHz. • 6 - PCI @ 3.3V, including one free running. • 1 - 48MHz, @ 3.3V fixed. • 1 - REF @ 3.3V, 14.318MHz. Features: • Up to 100MHz frequency support • Support power management: CPU, PCI, AGP stop and, Power down Mode from I2C programming.

  ICS9148-10   ICS9148-10







Pentium/ProTM System Clock Chip

Integrated Circuit Systems, Inc. ICS9148-10 Pentium/ProTM System Clock Chip General Description The ICS9148-10 is a Clock Synthesizer chip for Pentium and PentiumPro CPU based Desktop/Notebook systems that will provide all necessary clock timing. Features include four CPU and eight PCI clocks. Three reference outputs are available equal to the crystal frequency. Additionally, the device meets the Pentium power-up stabilization requirement, assuring that CPU and PCI clocks are stable within 2ms after power-up. PD# pin enables low power mode by stopping crystal OSC and PLL stages. Other power management features include CPU_STOP#, which stops CPU (0:3) clocks, and PCI_STOP#, which stops PCICLK (0:6) clocks. High drive CPUCLK outputs typically provide greater than 1 V/ns slew rate into 20pF loads. PCICLK outputs typically provide better than 1V/ns slew rate into 30pF loads while maintaining 50±5% duty cycle. The REF clock outputs typically provide better than 0.5V/ns slew rates. The ICS9148-10 accepts a 14.318MHz reference crystal or clock as its input and runs on a 3.3V core supply. Features • • • • • • • • • • • Generates system clocks for CPU, IOAPIC, PCI, plus 14.314 MHz REF (0:2), USB, and Super I/O Supports single or dual processor systems Supports Spread Spectrum modulation for CPU & PCI clocks, down spread -1% Skew from CPU (earlier) to PCI clock (rising edges for 100/33.3MHz) 1.5 to 4ns Two fixed outputs at 48MHz. Separate 2.5V and 3.3V supply pins 2.5V or 3.3V outpu.


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