| Series | RX631 |
| Package | Tray |
| Part Status | Active |
| Core Processor | RX |
| Core Size | 32-Bit |
| Speed | 100MHz |
| Connectivity | CANbus, EBI/EMI, I²C, LINbus, SCI, SPI, USB |
| Peripherals | DMA, LVD, POR, PWM, WDT |
| Number of I/O | 111 |
| Program Memory Size | 2MB (2M x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | 32K x 8 |
| RAM Size | 128K x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 3.6V |
| Data Converters | A/D 8x10b, 21x12b; D/A 2x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 144-LQFP |
| Supplier Device Package | 144-LFQFP (20x20) |
