MK1491-09FILNTR

Overview

The MK1491-09FILNTR is a clock/frequency synthesizer integrated circuit manufactured by Renesas Electronics Corporation, designed primarily for AMD CPU applications. It features a single circuit with a crystal input and generates up to twelve clock outputs at a maximum frequency of 66MHz. The device incorporates a Phase-Locked Loop (PLL) and operates within a supply voltage range of 3.15V to 3.45V. It supports an extended industrial operating temperature range from -40°C to 85°C and is housed in a 28-SSOP surface-mount package.

Feature Summary

• Generates 12 clock outputs from a single crystal input with a 1:12 ratio
• Integrated PLL for stable frequency synthesis targeting AMD CPUs
• Operates on 3.15V to 3.45V supply voltage
• Industrial temperature rating spanning -40°C to 85°C

Applications

• AMD CPU clock generation systems
• Computer motherboard timing circuits
• System-on-module clock distribution

Procurement Notes

Verify component authenticity through authorized channels as the part status is End-of-Life. Confirm RoHS3 compliance and check for specific manufacturing date codes if required for legacy system maintenance. Ensure the 28-SSOP footprint matches the target PCB design before procurement.

Selection Notes

Select this component when a dedicated 12-output clock generator for AMD processors is required. Ensure the design accommodates the 3.15V-3.45V supply rail and the 28-SSOP package dimensions. Verify that the 66MHz maximum frequency meets the system's timing requirements.

Part Context

This part belongs to the MK1491 series of clock generators. It serves as a specialized timing solution for legacy computing architectures, specifically addressing the clock distribution needs of AMD-based central processing units during its production lifecycle.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the End-of-Life status, alternative sourcing requires verification of pin-compatible or functionally equivalent components from other manufacturers.