ICS9248AG-92LFT

Overview

The ICS9248AG-92LFT is a mobile Pentium II system clock chip manufactured by Renesas Electronics Corporation. It generates system clocks for CPU, SDRAM, and PCI, along with reference, USB, and Super I/O signals. The device accepts a 14.318 MHz crystal input and operates within a 3.135V to 3.465V supply range. It features a maximum frequency of 100MHz and utilizes an I²C serial configuration interface. The component is housed in a 48-TSSOP package and supports an input-to-output ratio of 1:22.

Feature Summary

• Generates system clocks for CPU, SDRAM, PCI, REF, USB, and Super I/O
• I²C serial configuration interface for output clock disabling and control
• Two fixed outputs selectable as 24 or 48MHz
• Supports power management via PWR_DWN#, CPU_STOP#, and PCI_STOP# pins

Applications

• Intel Mobile Pentium II System Clock Chip
• Mobile Pentium II Platform Timing Solutions

Procurement Notes

Verify the manufacturer designation, as the model prefix 'ICS' indicates Integrated Circuit Systems, Inc., which was acquired by Renesas. Confirm the specific suffix '-92LFT' matches the required package and environmental specifications against official datasheets before procurement.

Selection Notes

Select this component for legacy Intel mobile Pentium II architectures requiring a dedicated timing solution. Ensure the design accommodates the 48-pin TSSOP footprint and provides the necessary 14.318 MHz external crystal. Verify that the 3.3V core supply and 2.5V logic levels align with the target motherboard voltage rails.

Part Context

This part belongs to the ICS9248 series of mobile Pentium II clock chips. It serves as a specialized timing controller designed specifically for Intel's mobile chipset requirements during the late 1990s and early 2000s era of computing hardware.

Replacement Considerations

No direct public substitutes are listed for this obsolete component. Modern replacements would require significant redesign due to differences in interface protocols, voltage levels, and package types.