MB91F577B microcontroller equivalent, 32-bit microcontroller.
* FR81S CPU Core
32-bit RISC, load/store architecture, 5-stage pipeline Maximum operating frequency: 80 MHz (Source oscillation = 4.0 MHz and 20 multiplied ( PLL cloc.
It contains the FR81S CPU that is compatible with the FR family. The FR81S has a high level performance among the Spans.
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