PY28349BOC

Overview

The PY28349BOC is a frequency timing generator manufactured by Cypress Semiconductor Corp, designed for Intel Pentium 4 CPU and chipset applications. It functions as a parity generator within the MS-1 series. The component operates with a supply voltage range of 1.7V to 1.95V and supports an industrial temperature range of -40°C to 85°C or up to 105°C depending on the specific variant suffix. It utilizes parallel interface technology and is available in surface-mount packages including 63-VFBGA and 67-VFBGA configurations.

Feature Summary

• Provides frequency timing generation capabilities specifically optimized for Intel Pentium 4 processors and associated chipsets.
• Integrates parity generation functionality to support data integrity in high-speed computing environments.
• Operates within low-voltage power domains suitable for modern mobile and desktop platform requirements.

Applications

• Intel Pentium 4 CPU clock generation
• Pentium 4 chipset timing synchronization
• System board frequency distribution

Procurement Notes

Verify the exact suffix code (e.g., BHI, GHI) against the required package type and temperature grade, as these determine physical compatibility. Confirm availability status as many variants are discontinued or end-of-life. Ensure the selected part matches the specific voltage and interface requirements of the target motherboard design before ordering.

Selection Notes

Select based on the specific operating temperature range required for the deployment environment, noting variations between commercial and industrial grades. Choose the appropriate package style, such as VFBGA, to match the PCB footprint constraints. Validate that the parallel interface configuration aligns with the system controller's output capabilities.

Part Context

This component belongs to the MS-1 series of memory and timing solutions from Cypress Semiconductor. It serves as a specialized integrated circuit for processor support logic rather than general-purpose storage. The product line focuses on enabling stable clock signals for high-performance computing architectures prevalent in the early 2000s.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Cross-referencing with the CY28349B datasheet may provide functional equivalence information for legacy system maintenance.