| Part Name | RAM (KB) | Program Memory (KB) | Operating Voltage Min (V) |
|---|---|---|---|
| R4F20235RNFD | 12.0 | 256.0 | - |
| R4F20235RDFD | 12.0 | 256.0 | - |
| R4F20234RNFD | 12.0 | 192.0 | - |
| R4F20234RDFD | 12.0 | 192.0 | - |
| R4F20223RNFD | 8.0 | 128.0 | - |
| R4F20223RDFD | 8.0 | 128.0 | - |
| R4F20222RNFD | 8.0 | 96.0 | - |
| R4F20222RDFD | 8.0 | 96.0 | - |
H8S/20223R Group and H8S/20235R Group microcontrollers have improved usability and capabilities by enhancing the basic functions (timers, serial interface, and D/A converter) of 80-pin H8/300H Tiny products and adding new functions (event link controller and peripheral I/O mapping controller) plus a data transfer controller. They are also equipped with a built-in high-precision high-speed on-chip oscillator. With 256 Kbytes of flash memory and 12 Kbytes of RAM built-in, real-time OS can be embedded. An on-chip debugging emulator (E8a) is supported, providing a low-cost development environment.
