Active production — BOM-fit for current designs
The R7F100GFK3CFP#AA0: It runs at 32 MHz on the RL78 core, with 384 KB of program flash, 32 KB of RAM, and an integrated 8 KB EEPROM block that eliminates an external serial memory for parameter storage.
Supply and temperature envelope for industrial use
The 44-LQFP package (10×10 mm body) with 37 I/O lines provides enough GPIO for sensor interfaces, keypads, and small displays while keeping the PCB footprint compact.
Analog and connectivity peripherals
The on-chip ADC offers up to 10 channels with selectable 8-, 10-, or 12-bit resolution, plus two 8-bit DAC channels — enough for reading analog sensors and generating control voltages without external converters. Serial connectivity includes CSI, I²C, LINbus, SPI, and UART/USART, so the part can talk to common peripherals (temperature sensors, motor drivers, display modules) without glue logic.
Peer comparison — R7F100GFK2DFP#AA0
The closest sibling is the R7F100GFK2DFP#AA0, which shares the same 32 MHz RL78 core, 384 KB flash, 32 KB RAM, 37 I/O, and 44-LQFP package. The wider-temperature part is the one to specify if the board sees sustained heat near the 85 °C boundary.