9250BF-27LF

Application Specific Clock/Timing Overview

The Renesas Electronics Corporation 9250BF-27LF is a clock generator and integrated buffer IC designed for Celeron and PII/III processors. It operates at a frequency of 133.3MHz with one output. The device supports output voltages of 2.5V and 3.3V, featuring an output skew of 175ps. It is housed in a 56-BSSOP package with dimensions of 18.4 x 7.5 x 2.3 mm and a package area of 138 mm².

Application Specific Clock/Timing Feature Summary

• Provides a single-chip clock solution for Intel chipset architectures
• Features integrated buffers for signal distribution
• Supports multiple output voltage levels

Application Specific Clock/Timing Applications

• Celeron processor systems
• PII/III processor platforms
• Intel 810/810E and 815 type chipset implementations

Application Specific Clock/Timing Procurement Notes

Verify the specific suffix LF against official Renesas documentation to confirm lead-free compliance status. Confirm that the 56-BSSOP package matches your PCB footprint requirements. Ensure the 133.3MHz frequency aligns with your system timing specifications. Cross-reference the 2.5V and 3.3V output capabilities with your target circuit design constraints before finalizing procurement.

Application Specific Clock/Timing Selection Notes

Select this component when designing for legacy Intel Celeron or PII/III architectures requiring a dedicated 133.3MHz clock source. Consider the 56-pin BSSOP package size for board space limitations. Verify compatibility with 810/810E and 815 chipset families if targeting those specific motherboard designs. Evaluate the 175ps output skew against your system's timing tolerance requirements.

Application Specific Clock/Timing Part Context

This part belongs to the ICS9250 series of clock generators. It serves as a specialized timing solution for older Intel processor generations. The device integrates frequency generation and buffering functions into a single chip, simplifying the clock tree design for compatible CPU platforms.

Application Specific Clock/Timing Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official Renesas cross-reference tools for potential alternatives.