Package Information
| Pitch (mm) | 0.5 |
| Lead Count (#) | 32 |
| Pkg. Type | HWQFN |
| Pkg. Dimensions (mm) | 5 x 5 x 0.8 |
| Pkg. Code | pkg_11901 |
Environmental & Export Classifications
| Moisture Sensitivity Level (MSL) | 3 |
| ECCN (US) | 3A991.a.2 |
| HTS (US) | 8542.31.0001 |
| Pb (Lead) Free | Yes |
Product Attributes
| Longevity | 2037 Dec |
| Carrier Type | Full Carton (Tray) |
| Family Name | RA |
| Series Name | RA0 |
| Group Name | RA0E1 |
| CPU Architecture | Arm |
| Main CPU | Arm Cortex-M23 |
| Sub CPU | No |
| Floating Point Unit | No |
| Bit Length | 32 |
| Program Memory (KB) | 32 |
| Data Flash (KB) | 1 |
| RAM (KB) | 12 |
| ECC SRAM | No |
| Lead Count (#) | 32 |
| Pkg. Type | HWQFN |
| Pitch (mm) | 0.5 |
| Pkg. Dimensions (mm) | 5 x 5 x 0.8 |
| Number of Supply Voltage(s) (#) | 1 |
| Supply Voltage (V) | 1.6 - 5.5 |
| I/O Ports | 29 |
| DMAC or DTC | DTC |
| DMA (ch) | 0 |
| Temperature Sensor (ch) (#) | 1 |
| Power-On Reset | Yes |
| Watchdog Timer (ch) | 1 |
| External Memory Bus (bit) | No |
| DRAM I/F | No |
| 3D GPU | No |
| Accelerator | No |
| Temp. Range | Ta = -40 to +105°C |
| External Interrupt Pins (#) | 6 |
| LVD or PVD | Yes |
| Operating Freq (Max) (MHz) | 32 |
| Operating Freq of Sub CPU (Max) | 0 |
| Sub-clock (32.768 kHz) | Yes |
| On-chip Oscillator | Yes |
| Ethernet speed | No |
| Ethernet (ch) | 0 |
| EtherCat (ch) (#) | 0 |
| USB Ports (#) | 0 |
| USB FS (host ch/device ch) | ( 0 / 0 ) |
| USB HS (host ch/device ch) | ( 0 / 0 ) |
| USB SS (host ch/device ch) | ( 0 / 0 ) |
| PCI Express (generation and ch) | No |
| SCI or UART (ch) | 3 |
| SPI (ch) | 0 |
| QSPI (ch) | 0 |
| OSPI (ch) | 0 |
| I2C (#) | 0 |
| I3C (ch) | 0 |
| CAN (ch) | 0 |
| CAN-FD (ch) | 0 |
| Wireless | No |
| IrDA | No |
| LIN (#) | 0 |
| SDHI (ch) | 0 |
| High Resolution Output Timer | No |
| PWM Output (pin#) | 7 |
| 32-Bit Timer (ch) | 0 |
| 16-Bit Timer (ch) (#) | 8 |
| 8-Bit Timer (ch) | 0 |
| Standby operable timer | Yes |
| Asynchronous General Purpose Timer / Interval Timer (ch) | 1 |
| RTC | Yes |
| 16-Bit A/D Converter (ch) | 0 |
| 14-Bit A/D Converter (ch) | 0 |
| 12-Bit A/D Converter (ch) | 10 |
| 10-Bit A/D Converter (ch) | 0 |
| 24-Bit Sigma-Delta A/D Converter (ch) | 0 |
| 16-Bit D/A Converter (ch) | 0 |
| 12-Bit D/A Converter (ch) | 0 |
| 10-Bit D/A Converter (ch) (#) | 0 |
| 8-Bit D/A Converter (ch) | 0 |
| Analog Comparator (ch) | 0 |
| OPAMP (ch) (#) | 0 |
| PGA (ch) | 0 |
| Capacitive Touch Sensing Unit (ch) | 0 |
| Graphics LCD Controller | No |
| MIPI Interfaces (DSI) (ch) | 0 |
| MIPI Interfaces (CSI) (ch) | 0 |
| Camera I/F (Parallel) | No |
| Image Codec | No |
| 2D Drawing Engine | No |
| Segment LCD Controller | No |
| SSI (ch) | 0 |
| Security & Encryption | Unique ID, TRNG |
| Debug Interface | SWD |
| Moisture Sensitivity Level (MSL) | 3 |
| Country of Assembly | Taiwan |
| Country of Wafer Fabrication | Japan |
| 16-bit Enhanced Timer (ch) | 0 |
| 16-bit High Res Timer (ch) | 0 |
| 32-Bit High Res Timer (ch) | 0 |
| 32-Bit ULPT (ch) | 0 |
| Asynchronous General Purpose Timer (ch) | 1 |
| Bit Size | 32 |
| CPU | Arm Cortex-M23 |
| DTC (ch) | 1 |
| Ethernet | No |
| Family Name | |
| Group Name | |
| High-Speed Analog Comparator (ch) | 0 |
| I2C (ch) | 1 |
| Lead Compliant | No |
| Length (mm) | 5 |
| Low-Power Analog Comparator (ch) | 0 |
| MIPI Interfaces (DSI/CSI) | 0 |
| MOQ | 3920 |
| Other Timers | iWDT |
| Pb (Lead) Free | Yes |
| QSPI Interface (#) | 0 |
| SPI (#) | 0 |
| Tape & Reel | No |
| Thickness (mm) | 0.8 |
| UART (#) | 1 |
| UART (ch) (#) | 1 |
| Width (mm) | 5 |
Description
The RA0E1 group is a basic, simple MCU in the entry line of the RA0 series, offering excellent cost effectiveness and ultra-low power consumption. It delivers up to 32MHz of CPU performance using an Arm® Cortex®-M23 core with up to 64KB of embedded flash memory and a wide supply voltage range from 1.6V to 5.5V. The RA0 series is ideal for cost-sensitive applications such as low power and lower cost for consumer electronics, system control for small appliances, industrial system control, and building automation.