SH7144 Datasheet, PDF (92/773 Pages) Renesas Technology Corp – Hitachi SuperH RISC engine

MHz and Pφ = 40 MHz, then 40 MHz), and the peak of electromagnetic waves is in the high
frequency band. When this LSI is used adjacent to apparatuses sensible to electromagnetic waves
such as FM/VHF band receivers, it is recommended to use a board with at least four layers and
provide a layer exclusive to the system ground.
Rev. 2.0, 09/02, page 52 of 732