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The 853S111BYILF is a clock buffer and driver manufactured by Renesas Electronics Corporation. It functions as a 2:10 differential-to-LVPECL fanout buffer with a maximum operating frequency of 2.5 GHz. The device is housed in a 32-lead PTQFP package. This component is designed for high-performance clock distribution applications requiring low skew and precise timing characteristics.
This part belongs to the 853S series of clock buffers from Renesas. The suffix 'BY' indicates the specific 32-lead PTQFP package variant, while 'ILF' denotes lead-free construction. It is distinct from other variants like the BKILFT (VFQFN) or BI (VFQFPN).
The datasheet lists the 853S111BYILFT as an alternative lead-free version within the same package family. Other pin-compatible options may exist within the broader 853S series, but verification against specific electrical parameters is required.