553MLF

Overview

The Renesas Electronics 553MLF is a low skew, single-input to four-output clock buffer belonging to the ClockBlocks family. It operates within a supply voltage range of 2.375 V to 5.25 V and supports maximum input frequencies up to 200 MHz. The device features extremely low output skew with a maximum specification of 50 ps. It utilizes low power CMOS technology and includes an output enable pin that tri-states the outputs. The component is available in an 8-pin SOIC package with lead-free construction.

Feature Summary

• Low skew outputs with maximum 50 ps skew
• Single input to four output configuration
• Operating voltage range of 2.375 V to 5.25 V
• Maximum input frequency of 200 MHz

Applications

• Clock distribution networks requiring low skew
• High-speed digital systems synchronization
• Consumer electronics clock buffering

Procurement Notes

Verify RoHS compliance status through official datasheets or manufacturer documentation before procurement. Confirm the specific temperature grade required for the application, as variants exist for commercial (0°C to +70°C) and industrial (-40°C to +85°C) ranges. Ensure the 8-SOIC package dimensions match the PCB footprint requirements. Check current availability and lead times directly with authorized distributors as stock levels fluctuate.

Selection Notes

Select the 553MLF when low skew performance is critical for clock distribution. Compare against the 551 series if cost reduction is prioritized over jitter performance. Consider the 553SCMGI8 for applications requiring smaller packaging or different supply voltage ranges. Verify that the 200 MHz maximum frequency meets system timing requirements. Ensure the operating temperature range aligns with the environmental conditions of the final assembly.

Part Context

The 553MLF is part of the Renesas ClockBlocks family, which specializes in low skew clock buffers and drivers. This series provides solutions for synchronizing clocks in high-speed digital designs without using PLLs. The 553 variant specifically offers a 1-to-4 fan-out ratio. Related products include the 552 series for higher fan-out needs and the MK74CBxxx Buffalo series for applications requiring more than eight outputs.

Replacement Considerations

The 553S series is noted as an improved alternative offering better jitter performance and a smaller package size with a 1.8V to 3.3V supply voltage range. Direct pin-compatible replacements within the same voltage range should be verified against updated datasheets.