932S421BFLF

Application Specific Clock/Timing Overview

The Renesas Electronics Corporation 932S421BFLF is a clock/frequency synthesizer IC designed for Intel CPU server applications. It features a Phase-Locked Loop (PLL) circuit with a single output channel capable of reaching a maximum frequency of 400MHz. The device utilizes crystal input and provides HCSL output signals. It operates within a supply voltage range of 3.135V to 3.465V and supports a 1:19 input-to-output ratio. The component is housed in a 56-TFSOP package, measuring 6.10mm in width, and is rated for an operating temperature range of 0°C to 70°C.

Application Specific Clock/Timing Feature Summary

• Integrated PLL-based clock generation for Intel CPU servers
• Maximum output frequency of 400MHz with HCSL output type
• Single output channel with 1:19 input-to-output ratio
• Operates on 3.135V to 3.465V supply voltage

Application Specific Clock/Timing Applications

• Intel CPU server clock distribution
• Frequency synthesis for processor systems

Application Specific Clock/Timing Procurement Notes

The 932S421BGLFT variant is listed as obsolete with discontinuance notices dated January and February 2022. Verification of the specific BFLF suffix status against official Renesas Product Change Notices is required, as availability may be limited or restricted to existing stock. Confirm current lifecycle status before design implementation.

Application Specific Clock/Timing Selection Notes

Select this component for Intel architecture server designs requiring a 400MHz HCSL clock source. Ensure the system power supply maintains the 3.135V–3.465V range. Verify that the 56-TFSOP footprint matches the PCB layout constraints. Consider the 0°C to 70°C industrial temperature rating against environmental requirements.

Application Specific Clock/Timing Part Context

This part belongs to the 932S421 family of clock generators. It is functionally similar to the 932S421BGLFT, differing primarily in packaging or trailing specifications. The family targets high-performance computing environments where stable, low-jitter clock signals are critical for CPU synchronization.

Application Specific Clock/Timing Replacement Considerations

The 932SQ420DGLFT is identified as a potential substitute by distributors. Verify pin compatibility and electrical parameter alignment with the original datasheet before replacement.