Core parametrics and on-chip memory budget
The R5F11ZBAAFP#30 is a 16-bit RL78/G1P microcontroller clocked at 32 MHz, with 16 KB of program flash and 1.5 KB of RAM. An additional 2 KB of on-chip EEPROM provides non-volatile storage for calibration constants or configuration data without requiring an external serial memory device.
I/O count and package footprint for board layout
With 28 general-purpose I/O lines in a 32-LQFP package (7x7 mm body), the pinout leaves four pins for supply and ground. The 0.8 mm pitch is routable on a two-layer board for simpler designs, though a four-layer stack-up improves noise margin on the ADC reference.
Analog integration: ADC and DAC on a single chip
An 8-channel 12-bit successive-approximation ADC and a 2-channel 10-bit DAC are integrated, covering most sensor-feedback and analog-output needs without external converters. The ADC samples at the 32 MHz core clock rate; the conversion time depends on the selected clock divider and sample-and-hold window.
Serial interfaces and on-chip peripherals
Connectivity includes CSI (clocked serial interface), I²C, and UART/USART — enough for daisy-chaining sensors, driving a small display, or communicating with a host controller. On-chip LVD, POR, PWM, and WDT reduce the external component count to a decoupling capacitor and an optional reset circuit.