RL78/G13 core with 48 KB Flash and 32 MHz throughput
The R5F100BDANA#20 is a 16-bit RL78/G13 microcontroller from Renesas, clocked at 32 MHz with 48 KB of on-chip Flash program memory and 3 KB of RAM. The 4 KB data EEPROM space handles calibration constants or small lookup tables without external storage.
22 I/O, on-chip ADC, and serial connectivity for control loops
22 general-purpose I/O lines are available, along with an 8-channel 8/10-bit A/D converter for reading analog sensors or potentiometers. Serial interfaces include CSI (clocked serial), I²C, LINbus, and UART/USART, covering common fieldbus and point-to-point links. On-chip peripherals — DMA, LVD (low-voltage detect), POR (power-on reset), PWM, and WDT — reduce external component count.
32-HWQFN package: footprint and thermal pad planning
The exposed pad also serves as the primary ground return for the core and I/O rings — the PCB layout should connect it to the ground plane with multiple vias under the pad to minimise inductance and thermal resistance.
Active lifecycle and compliance documentation
R5F100BDANA#20 carries an active product status from Renesas, with RoHS3 compliance. The RL78/G13 series has broad distribution and long-term availability commitment from Renesas.