952906AFLFT

Application Specific Clock/Timing Overview

The Renesas Electronics 952906AFLFT is a programmable clock generator belonging to the Timing Control Hub (TCH) family. It is housed in an SSOP-48 package and designed for PC main clock applications, specifically supporting VIA VN800/CN700/P4M800 style chipsets. The device utilizes a serial I2C interface for configuration, allowing adjustment of frequency settings, output divider ratios, spread spectrum percentages, output skew, and individual output enable/disable states. It provides necessary clock signals when used with fanout DDR buffers.

Application Specific Clock/Timing Feature Summary

• Programmable via serial I2C interface for flexible configuration
• Supports M/N control with output frequency resolution up to 0.1MHz increment
• Capable of adjusting output skew, strength, and spread spectrum modulation
• Designed for PC main clock systems using VIA chipset architectures

Application Specific Clock/Timing Applications

• VIA VN800 chipset systems
• VIA CN700 chipset systems
• VIA P4M800 chipset systems

Application Specific Clock/Timing Procurement Notes

The 952906AFLFT is listed as obsolete or end-of-life by the manufacturer. Availability is restricted, and distributors may not stock this item in all regions. Verification of current lifecycle status and alternative sourcing is required before procurement planning.

Application Specific Clock/Timing Selection Notes

This component is specific to legacy VIA-based PC motherboard designs requiring a dedicated main clock generator. It must be paired with external fanout buffers, such as the IDT 93788, to drive DDR memory loads. Designers should verify compatibility with existing PCB layouts and BIOS configurations for the target chipset.

Application Specific Clock/Timing Part Context

The 952906 series represents Renesas/IDT's Timing Control Hub technology, integrating advanced clock generation features into a single chip. The 'AFLFT' suffix indicates the specific pinout, temperature range, and lead-free packaging variant within the 952906 family, distinct from other variants like the BGLFT which uses a TSSOP-48 package.

Application Specific Clock/Timing Replacement Considerations

As an obsolete part, direct replacements are limited. Engineers should evaluate modern clock generators compatible with VIA chipsets or consider redesigning the system if the chipset is no longer supported. No public substitute part numbers are confirmed.