RL78/G23 16-bit MCU with 32 MHz core and 256 KB Flash
An additional 8 KB of EEPROM data flash provides non-volatile parameter storage without external parts. The device integrates a 20-channel 10-bit ADC, an 8-channel 12-bit ADC, and a 2-channel 8-bit DAC, covering most analog front-end needs for sensor conditioning and closed-loop control. The 88 I/O lines in a 100-LQFP package (14x20 mm) offer ample pin budget for parallel displays, keypads, and multi-axis actuator interfaces.
There is no announced end-of-life, no last-time-buy window, and no successor mandate. For a procurement desk qualifying a BOM line, that means no supply disruption from an imminent phase-out.
Memory headroom and analog integration
The 256 KB Flash is sized for moderate firmware with a bootloader and OTA staging area; the 24 KB RAM handles real-time data buffers for multi-channel ADC acquisition and communication stacks. The 8 KB EEPROM block supports wear-leveled parameter storage — useful for calibration coefficients or fault logs that survive power cycles without external serial EEPROM. The dual ADC resolution (10-bit and 12-bit) lets the designer trade conversion speed for precision: the 12-bit channels suit temperature or pressure sensing, while the 10-bit channels handle faster current or voltage monitoring loops.
Because the part is active and not in a constrained allocation phase, lead times typically track the manufacturer's standard factory cycle. For dual-sourcing or second-source qualification, the RL78/G23 family includes pin-compatible siblings with the same 88 I/O count and 100-LQFP footprint — the key difference is Flash and RAM density, not function.