特性
- 48MHz Arm Cortex-M23
- 256kB 闪存以及 32kB SRAM
- 与 EEPROM 存储数据功能类似的 8kB 数据闪存
- 可从 32 引脚封装扩展至 64 引脚封装
- 电容式触摸传感单元
- 16 位 SAR A/D，24 位 SD A/D
- 12 位 D/A，8 位 D/A
- OPAMP (3ch)，ACMP-HS/LP
- 全速 USB 2.0
- CAN 2.0
- SCI（UART、简单 SPI、简单 I2C）
RA2A1 Block Diagram
描述
RA2A1 系列是一款高性能、低功耗的模拟微控制器，基于 Arm® Cortex-M23® 内核，具有 48MHz 时钟频率和丰富的模拟前端，包括两种类型的 A/D 转换器。 该产品支持 16 位 SAR A/D 转换器、24 位 Σ-Δ A/D 转换器、12 位 D/A 转换器、比较器和运算放大器。 这些功能适用于高精度测量和调整传感器信号的应用。 此外，UART、I2C、simple SPI、CAN 和 USB 2.0 Full-Speed 也作为外围功能集成在一起，可以与其他设备轻松通信。 RA2A1 支持 1.6V 至 5.5V 的宽工作电压范围，无需电平转换器即可与工作电压为 5V 的设备进行通信。 RA2A1 MCU 面向具有低功耗和低成本优势的工业传感器应用。
产品参数
| 属性 | 值 |
|---|---|
| Main CPU | Arm Cortex-M23 |
| Program Memory (KB) | 256 |
| RAM (KB) | 32 |
| Carrier Type | Bulk (Tray), Full Carton (Tray), Full Tray (Tray), Tape & Reel |
| Supply Voltage (V) | 1.6 - 5.5 |
| I/O Ports | 20, 22, 25, 33, 49 |
| DRAM I/F | No |
| Temp. Range (°C) | Ta= -40 to +85, Ta=-40 to +105 |
| Operating Freq (Max) (MHz) | 48 |
| Ethernet speed | No |
| EtherCat (ch) (#) | 0 |
| USB FS (host ch/device ch) | ( 0 / 0 ), ( 0 / 1 ) |
| USB HS (host ch/device ch) | ( 0 / 0 ) |
| USB SS (host ch/device ch) | ( 0 / 0 ) |
| SCI or UART (ch) | 3 |
| SPI (ch) | 1, 2 |
| I2C (#) | 2 |
| CAN (ch) | 1 |
| CAN-FD (ch) | 0 |
| Wireless | No |
| SDHI (ch) | 0 |
| High Resolution Output Timer | No |
| PWM Output (pin#) | 8, 11, 14 |
| 32-Bit Timer (ch) | 1 |
| 16-Bit Timer (ch) (#) | 3, 4, 6 |
| Standby operable timer | Yes |
| Asynchronous General Purpose Timer / Interval Timer (ch) | 2 |
| 16-Bit A/D Converter (ch) | 5, 8, 12, 17 |
| 14-Bit A/D Converter (ch) | 0 |
| 12-Bit A/D Converter (ch) | 0 |
| 24-Bit Sigma-Delta A/D Converter (ch) | 2, 4, 6, 8 |
| 12-Bit D/A Converter (ch) | 1 |
| 8-Bit D/A Converter (ch) | 2 |
| Capacitive Touch Sensing Unit (ch) | 9, 11, 16, 26 |
| Image Codec | No |
| Segment LCD Controller | No |
| Security & Encryption | Unique ID, TRNG, AES(128/256) |
应用方框图
 | 人形机器人电池管理系统 集成式人形机器人 BMS，可实现安全、实时的功率管理、保护及电池状态控制。 |
 | 工业称重秤 适合高精度或便携式低功耗应用场景的精准且可扩展的工业称重秤。 |
 | 垃圾车管理系统 智能垃圾管理系统通过重量追踪、路线优化和实时监测来提高管理效率。 |
 | 无线多通道隔离数据记录器 无线多通道隔离数据记录器为工业网络和 Wi-Fi 提供多通道测量。 |
 | 具有实时监控功能的高效在线不间断电源（UPS） 在线 UPS 通过实时监控、高级电源管理和效率确保不间断电源。 |
 | 电力线馈线终端装置 馈线终端单元监控高压电力线，并在将数据上传到中心位置之前测量和存储数据。 |
 | 无线电子游戏桌 灵活的 Wi-Fi 6 系统提供 3000Mbps、4x4 MIMO、双频支持以及无缝集成功能。 |
 | 电池化成和测试系统 瑞萨电子的 32 位 MCU 可实现双向电源转换、精确的电池测量和控制。 |
 | 工业传感器网络 设计紧凑的工业传感器网络系统，具有灵活的接口和实时监控功能。 |
 | ASi-5 多传感器平台 单个 PCB 将多个传感器与 ASi-5 系统集成在一起，提供灵活性和精确的评估。 |
 | 4 至 20mA 电流环路接收器 4 至 20mA 电流环路接收器为传感器系统提供低功耗和信号处理功能。 |
 | 数字照度计 数字手持式照度计，带有光传感器、OLED、触摸键盘和 USB 充电 MCU。 |
 | 带验钞功能的点钞机 带有 TMR 传感器、MCU、USB 或 IrDA 和 LCD 的完整点钞机，用于快速、准确的防伪检测。 |
 | 智能电网故障指示器单元 低功耗智能电网故障指示器，具有高性能 MCU 和高效监控功能。 |
 | 基于 2D 触摸传感的厨房抽油烟机 配备 2D 触控界面的厨房抽油烟机，具备增强感应能力和直观的人机交互体验。 |
其他应用
- 工业自动化（光电传感器、光纤传感器、温度传感器）
- 流程自动化（压力传感器、流量控制计、单相表）
- 楼宇自动化/家用电器（烟雾探测器）
- 保健（脉搏血氧仪、身体指数测量）
- 一般用途
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| 器件号 | 状态 | 样品 | 供应期限 | 库存 | 封装 | 预算价格（美元） | Carrier Type | Family Name | Series Name | Group Name | CPU Architecture | Main CPU | Sub CPU | Floating Point Unit | Bit Length | Program Memory (KB) | Data Flash (KB) | RAM (KB) | ECC SRAM | Lead Count (#) | Pitch (mm) | Pkg. Dimensions (mm) | Number of Supply Voltage(s) (#) | Supply Voltage (V) | I/O Ports | DMAC or DTC | DMA (ch) | Temperature Sensor (ch) (#) | Power-On Reset | Watchdog Timer (ch) | External Memory Bus (bit) | DRAM I/F | 3D GPU | Accelerator | MOQ | Temp. Range (°C) | External Interrupt Pins (#) | LVD or PVD | Operating Freq (Max) (MHz) | Sub-clock (32.768 kHz) | On-chip Oscillator | Ethernet speed | Ethernet (ch) | EtherCat (ch) (#) | USB Ports (#) | USB FS (host ch/device ch) | USB HS (host ch/device ch) | USB SS (host ch/device ch) | PCI Express (generation and ch) | SCI or UART (ch) | SPI (ch) | QSPI (ch) | OSPI (ch) | I2C (#) | I3C (ch) | CAN (ch) | CAN-FD (ch) | Wireless | IrDA | LIN (#) | SDHI (ch) | High Resolution Output Timer | PWM Output (pin#) | 32-Bit Timer (ch) | 16-Bit Timer (ch) (#) | 8-Bit Timer (ch) | Standby operable timer | Asynchronous General Purpose Timer / Interval Timer (ch) | RTC | 16-Bit A/D Converter (ch) | 14-Bit A/D Converter (ch) | 12-Bit A/D Converter (ch) | 10-Bit A/D Converter (ch) | 24-Bit Sigma-Delta A/D Converter (ch) | 16-Bit D/A Converter (ch) | 12-Bit D/A Converter (ch) | 10-Bit D/A Converter (ch) (#) | 8-Bit D/A Converter (ch) | Analog Comparator (ch) | OPAMP (ch) (#) | PGA (ch) | Capacitive Touch Sensing Unit (ch) | Graphics LCD Controller | MIPI Interfaces (DSI) (ch) | MIPI Interfaces (CSI) (ch) | Camera I/F (Parallel) | Image Codec | 2D Drawing Engine | Segment LCD Controller | SSI (ch) | Security & Encryption | Debug Interface | Moisture Sensitivity Level (MSL) | Country of Assembly | Country of Wafer Fabrication |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| R7FA2A1AB2CBT#AC0 | Active | Available | 有库存 | LFBGA | 1ku | $2.81 | Bulk (Tray) | RA | RA2 | RA2A1 | Arm | Arm Cortex-M23 | No | No | 32 | 256KB | 8KB | 32KB | Yes | 36# | 0.8mm | 5 x 5 x 1.4 | 1# | 1.6 - 5.5 | 22 | DTC | 0 | 1# | Yes | 2 | No | No | No | No | 1 | Ta= -40 to +85 | 8# | Yes | 48MHz | Yes | Yes | No | 0 | 0 | 1# | ( 0 / 1 ) | ( 0 / 0 ) | ( 0 / 0 ) | No | 3 | 1 | 0 | 0 | 2# | 0 | 1 | 0 | No | No | 0 | 0 | No | 8 | 1 | 3# | 0 | Yes | 2 | Yes | 5 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 2 | 3 | 1# | 0 | 9 | No | 0 | 0 | No | No | No | No | 0 | Unique ID, TRNG, AES(128/256) | SWD | 3 | JAPAN | JAPAN | |
| R7FA2A1AB3CFJ#AA0 | Active | Available | 有库存 | LQFP | 1ku | $2.77 | Bulk (Tray) | RA | RA2 | RA2A1 | Arm | Arm Cortex-M23 | No | No | 32 | 256KB | 8KB | 32KB | Yes | 32# | 0.8mm | 7 x 7 x 1.7 | 1# | 1.6 - 5.5 | 20 | DTC | 0 | 1# | Yes | 2 | No | No | No | No | 1 | Ta=-40 to +105 | 8# | Yes | 48MHz | No | Yes | No | 0 | 0 | 0 | ( 0 / 0 ) | ( 0 / 0 ) | ( 0 / 0 ) | No | 3 | 2 | 0 | 0 | 2# | 0 | 1 | 0 | No | No | 0 | 0 | No | 8 | 1 | 4# | 0 | Yes | 2 | Yes | 5 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 2 | 3 | 1# | 0 | 11 | No | 0 | 0 | No | No | No | No | 0 | Unique ID, TRNG, AES(128/256) | SWD | 3 | CHINA | JAPAN | |
| R7FA2A1AB3CFJ#BA0 | Active | N/A | 2037 Dec | 缺货 | LQFP | 1ku | $2.77 | Full Carton (Tray) | RA | RA2 | RA2A1 | Arm | Arm Cortex-M23 | No | No | 32 | 256KB | 8KB | 32KB | Yes | 32# | 0.8mm | 7 x 7 x 1.7 | 1# | 1.6 - 5.5 | 20 | DTC | 0 | 1# | Yes | 2 | No | No | No | No | 2000 | Ta=-40 to +105 | 8# | Yes | 48MHz | No | Yes | No | 0 | 0 | 0 | ( 0 / 0 ) | ( 0 / 0 ) | ( 0 / 0 ) | No | 3 | 2 | 0 | 0 | 2# | 0 | 1 | 0 | No | No | 0 | 0 | No | 8 | 1 | 4# | 0 | Yes | 2 | Yes | 5 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 2 | 3 | 1# | 0 | 11 | No | 0 | 0 | No | No | No | No | 0 | Unique ID, TRNG, AES(128/256) | SWD | 3 | CHINA | JAPAN |
| R7FA2A1AB3CFJ#UA0 | Active | N/A | 缺货 | LQFP | 1ku | $2.77 | Full Tray (Tray) | RA | RA2 | RA2A1 | Arm | Arm Cortex-M23 | No | No | 32 | 256KB | 8KB | 32KB | Yes | 32# | 0.8mm | 7 x 7 x 1.7 | 1# | 1.6 - 5.5 | 20 | DTC | 0 | 1# | Yes | 2 | No | No | No | No | 250 | Ta=-40 to +105 | 8# | Yes | 48MHz | No | Yes | No | 0 | 0 | 0 | ( 0 / 0 ) | ( 0 / 0 ) | ( 0 / 0 ) | No | 3 | 2 | 0 | 0 | 2# | 0 | 1 | 0 | No | No | 0 | 0 | No | 8 | 1 | 4# | 0 | Yes | 2 | Yes | 5 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 2 | 3 | 1# | 0 | 11 | No | 0 | 0 | No | No | No | No | 0 | Unique ID, TRNG, AES(128/256) | SWD | 3 | CHINA | JAPAN | |
| R7FA2A1AB3CFM#AA0 | Active | Available | 有库存 | LFQFP | 1ku | $2.97 | Bulk (Tray) | RA | RA2 | RA2A1 | Arm | Arm Cortex-M23 | No | No | 32 | 256KB | 8KB | 32KB | Yes | 64# | 0.5mm | 10 x 10 x 1.7 | 1# | 1.6 - 5.5 | 49 | DTC | 0 | 1# | Yes | 2 | No | No | No | No | 1 | Ta=-40 to +105 | 8# | Yes | 48MHz | Yes | Yes | No | 0 | 0 | 1# | ( 0 / 1 ) | ( 0 / 0 ) | ( 0 / 0 ) | No | 3 | 2 | 0 | 0 | 2# | 0 | 1 | 0 | No | No | 0 | 0 | No | 14 | 1 | 6# | 0 | Yes | 2 | Yes | 17 | 0 | 0 | 0 | 8 | 0 | 1 | 0 | 2 | 3 | 3# | 0 | 26 | No | 0 | 0 | No | No | No | No | 0 | Unique ID, TRNG, AES(128/256) | SWD | 3 | CHINA | JAPAN | |
| R7FA2A1AB3CFM#BA0 | Active | N/A | 2037 Dec | 缺货 | LFQFP | 1ku | $2.97 | Full Carton (Tray) | RA | RA2 | RA2A1 | Arm | Arm Cortex-M23 | No | No | 32 | 256KB | 8KB | 32KB | Yes | 64# | 0.5mm | 10 x 10 x 1.7 | 1# | 1.6 - 5.5 | 49 | DTC | 0 | 1# | Yes | 2 | No | No | No | No | 1280 | Ta=-40 to +105 | 8# | Yes | 48MHz | Yes | Yes | No | 0 | 0 | 1# | ( 0 / 1 ) | ( 0 / 0 ) | ( 0 / 0 ) | No | 3 | 2 | 0 | 0 | 2# | 0 | 1 | 0 | No | No | 0 | 0 | No | 14 | 1 | 6# | 0 | Yes | 2 | Yes | 17 | 0 | 0 | 0 | 8 | 0 | 1 | 0 | 2 | 3 | 3# | 0 | 26 | No | 0 | 0 | No | No | No | No | 0 | Unique ID, TRNG, AES(128/256) | SWD | 3 | CHINA | JAPAN |
| R7FA2A1AB3CFM#UA0 | Active | N/A | 缺货 | LFQFP | 1ku | $2.97 | Full Tray (Tray) | RA | RA2 | RA2A1 | Arm | Arm Cortex-M23 | No | No | 32 | 256KB | 8KB | 32KB | Yes | 64# | 0.5mm | 10 x 10 x 1.7 | 1# | 1.6 - 5.5 | 49 | DTC | 0 | 1# | Yes | 2 | No | No | No | No | 160 | Ta=-40 to +105 | 8# | Yes | 48MHz | Yes | Yes | No | 0 | 0 | 1# | ( 0 / 1 ) | ( 0 / 0 ) | ( 0 / 0 ) | No | 3 | 2 | 0 | 0 | 2# | 0 | 1 | 0 | No | No | 0 | 0 | No | 14 | 1 | 6# | 0 | Yes | 2 | Yes | 17 | 0 | 0 | 0 | 8 | 0 | 1 | 0 | 2 | 3 | 3# | 0 | 26 | No | 0 | 0 | No | No | No | No | 0 | Unique ID, TRNG, AES(128/256) | SWD | 3 | CHINA | JAPAN | |
| R7FA2A1AB3CNE#AA0 | Active | N/A | 有库存 | HWQFN | 1ku | $2.87 | Bulk (Tray) | RA | RA2 | RA2A1 | Arm | Arm Cortex-M23 | No | No | 32 | 256KB | 8KB | 32KB | Yes | 48# | 0.5mm | 7 x 7 x 0.8 | 1# | 1.6 - 5.5 | 33 | DTC | 0 | 1# | Yes | 2 | No | No | No | No | 1 | Ta=-40 to +105 | 8# | Yes | 48MHz | Yes | Yes | No | 0 | 0 | 1# | ( 0 / 1 ) | ( 0 / 0 ) | ( 0 / 0 ) | No | 3 | 2 | 0 | 0 | 2# | 0 | 1 | 0 | No | No | 0 | 0 | No | 14 | 1 | 6# | 0 | Yes | 2 | Yes | 12 | 0 | 0 | 0 | 6 | 0 | 1 | 0 | 2 | 3 | 2# | 0 | 16 | No | 0 | 0 | No | No | No | No | 0 | Unique ID, TRNG, AES(128/256) | SWD | 3 | TAIWAN | JAPAN | |
| R7FA2A1AB3CNE#BA0 | Active | N/A | 2037 Dec | 缺货 | HWQFN | 1ku | $2.87 | Full Carton (Tray) | RA | RA2 | RA2A1 | Arm | Arm Cortex-M23 | No | No | 32 | 256KB | 8KB | 32KB | Yes | 48# | 0.5mm | 7 x 7 x 0.8 | 1# | 1.6 - 5.5 | 33 | DTC | 0 | 1# | Yes | 2 | No | No | No | No | 3328 | Ta=-40 to +105 | 8# | Yes | 48MHz | Yes | Yes | No | 0 | 0 | 1# | ( 0 / 1 ) | ( 0 / 0 ) | ( 0 / 0 ) | No | 3 | 2 | 0 | 0 | 2# | 0 | 1 | 0 | No | No | 0 | 0 | No | 14 | 1 | 6# | 0 | Yes | 2 | Yes | 12 | 0 | 0 | 0 | 6 | 0 | 1 | 0 | 2 | 3 | 2# | 0 | 16 | No | 0 | 0 | No | No | No | No | 0 | Unique ID, TRNG, AES(128/256) | SWD | 3 | TAIWAN | JAPAN |
| R7FA2A1AB3CNE#UA0 | Active | N/A | 缺货 | HWQFN | 1ku | $2.87 | Full Tray (Tray) | RA | RA2 | RA2A1 | Arm | Arm Cortex-M23 | No | No | 32 | 256KB | 8KB | 32KB | Yes | 48# | 0.5mm | 7 x 7 x 0.8 | 1# | 1.6 - 5.5 | 33 | DTC | 0 | 1# | Yes | 2 | No | No | No | No | 416 | Ta=-40 to +105 | 8# | Yes | 48MHz | Yes | Yes | No | 0 | 0 | 1# | ( 0 / 1 ) | ( 0 / 0 ) | ( 0 / 0 ) | No | 3 | 2 | 0 | 0 | 2# | 0 | 1 | 0 | No | No | 0 | 0 | No | 14 | 1 | 6# | 0 | Yes | 2 | Yes | 12 | 0 | 0 | 0 | 6 | 0 | 1 | 0 | 2 | 3 | 2# | 0 | 16 | No | 0 | 0 | No | No | No | No | 0 | Unique ID, TRNG, AES(128/256) | SWD | 3 | TAIWAN | JAPAN | |
| R7FA2A1AB3CNF#AA0 | Active | N/A | 缺货 | HWQFN | 1ku | $2.84 | Bulk (Tray) | RA | RA2 | RA2A1 | Arm | Arm Cortex-M23 | No | No | 32 | 256KB | 8KB | 32KB | Yes | 40# | 0.5mm | 6 x 6 x 0.8 | 1# | 1.6 - 5.5 | 25 | DTC | 0 | 1# | Yes | 2 | No | No | No | No | 1 | Ta=-40 to +105 | 8# | Yes | 48MHz | Yes | Yes | No | 0 | 0 | 1# | ( 0 / 1 ) | ( 0 / 0 ) | ( 0 / 0 ) | No | 3 | 2 | 0 | 0 | 2# | 0 | 1 | 0 | No | No | 0 | 0 | No | 11 | 1 | 4# | 0 | Yes | 2 | Yes | 8 | 0 | 0 | 0 | 4 | 0 | 1 | 0 | 2 | 3 | 1# | 0 | 11 | No | 0 | 0 | No | No | No | No | 0 | Unique ID, TRNG, AES(128/256) | SWD | 3 | TAIWAN | JAPAN | |
| R7FA2A1AB3CNF#BA0 | Active | N/A | 2037 Dec | 缺货 | HWQFN | 1ku | $2.84 | Full Carton (Tray) | RA | RA2 | RA2A1 | Arm | Arm Cortex-M23 | No | No | 32 | 256KB | 8KB | 32KB | Yes | 40# | 0.5mm | 6 x 6 x 0.8 | 1# | 1.6 - 5.5 | 25 | DTC | 0 | 1# | Yes | 2 | No | No | No | No | 3920 | Ta=-40 to +105 | 8# | Yes | 48MHz | Yes | Yes | No | 0 | 0 | 1# | ( 0 / 1 ) | ( 0 / 0 ) | ( 0 / 0 ) | No | 3 | 2 | 0 | 0 | 2# | 0 | 1 | 0 | No | No | 0 | 0 | No | 11 | 1 | 4# | 0 | Yes | 2 | Yes | 8 | 0 | 0 | 0 | 4 | 0 | 1 | 0 | 2 | 3 | 1# | 0 | 11 | No | 0 | 0 | No | No | No | No | 0 | Unique ID, TRNG, AES(128/256) | SWD | 3 | TAIWAN | JAPAN |
| R7FA2A1AB3CNF#HA0 | Active | N/A | 缺货 | HWQFN | 1ku | $2.84 | Tape & Reel | RA | RA2 | RA2A1 | Arm | Arm Cortex-M23 | No | No | 32 | 256KB | 8KB | 32KB | Yes | 40# | 0.5mm | 6 x 6 x 0.8 | 1# | 1.6 - 5.5 | 25 | DTC | 0 | 1# | Yes | 2 | No | No | No | No | 2500 | Ta=-40 to +105 | 8# | Yes | 48MHz | Yes | Yes | No | 0 | 0 | 1# | ( 0 / 1 ) | ( 0 / 0 ) | ( 0 / 0 ) | No | 3 | 2 | 0 | 0 | 2# | 0 | 1 | 0 | No | No | 0 | 0 | No | 11 | 1 | 4# | 0 | Yes | 2 | Yes | 8 | 0 | 0 | 0 | 4 | 0 | 1 | 0 | 2 | 3 | 1# | 0 | 11 | No | 0 | 0 | No | No | No | No | 0 | Unique ID, TRNG, AES(128/256) | SWD | 3 | TAIWAN | JAPAN | |
| R7FA2A1AB3CNF#UA0 | Active | N/A | 缺货 | HWQFN | 1ku | $2.84 | Full Tray (Tray) | RA | RA2 | RA2A1 | Arm | Arm Cortex-M23 | No | No | 32 | 256KB | 8KB | 32KB | Yes | 40# | 0.5mm | 6 x 6 x 0.8 | 1# | 1.6 - 5.5 | 25 | DTC | 0 | 1# | Yes | 2 | No | No | No | No | 490 | Ta=-40 to +105 | 8# | Yes | 48MHz | Yes | Yes | No | 0 | 0 | 1# | ( 0 / 1 ) | ( 0 / 0 ) | ( 0 / 0 ) | No | 3 | 2 | 0 | 0 | 2# | 0 | 1 | 0 | No | No | 0 | 0 | No | 11 | 1 | 4# | 0 | Yes | 2 | Yes | 8 | 0 | 0 | 0 | 4 | 0 | 1 | 0 | 2 | 3 | 1# | 0 | 11 | No | 0 | 0 | No | No | No | No | 0 | Unique ID, TRNG, AES(128/256) | SWD | 3 | TAIWAN | JAPAN |
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- 应用说明英语Functional safety functions are becoming an important on system design as automatic electronic control systems continue to expand to a wide range of applications. This APN describes the software for capacitive touch sensor(CTSU) functional safety self test.
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- 应用说明英语PDF 283 KB R01AN6054EJ0160 Rev.1.60 2026年3月03日Recommended operating conditions are provided to help prevent device damage in Renesas RA family MCUs when injection current is introduced at I/O pins by external factors. The document outlines the maximum allowable injection current for each RA product and explains how to calculate appropriate series resistors to limit injection current, providing design guidelines for system development.
- 其他英语RA2A1 Group HandbookRECOMMENDEDThe RA2A1 group handbook organizes essential information and materials for product development according to each development phase. Please use this handbook as a resource during the planning and development stages for the RA2A1 group.
- 应用说明英语AI 生成的摘要: This application note introduces recommended resonators for the RX and RA families along with the relevant resonator matching evaluation results, oscillation evaluation methods, and some recommendations on board design as information for the design of the main clock oscillation circuit and the sub-clock oscillation circuit.
- 应用说明英语PDF 1.02 MB R01AN6628EU0110 Rev.1.10 2025年8月12日This application note introduces general Ethernet design concepts and the RA Ethernet controller and interface to the PHY peripheral. It provides design guidelines when using the RA MCU with RMII modes for Ethernet-specific applications explaining how to utilize the FSP configurator to integrate the Ethernet module and ensure proper configuration. It guides the integration of a new PHY into custom boards, including setup and software support through FSP, and describes MDIO communication between the MCU and PHY.
- 应用说明英语AI 生成的摘要: Capacitive touch sensors measure capacitance changes caused by finger contact using a sensor drive pulse and current measurement. Ripple noise from the power supply or peripheral circuits distorts these measurements by adding noise currents, causing inaccurate touch detection. To ensure high accuracy and reliability, power supply design must minimize ripple noise. The document explains measurement principles, ripple noise effects, and countermeasures including power supply circuit selection, switching circuits, board layout, and touch parameter tuning. It covers RX, RL78, and RA family MCUs embedding CTSU1 and CTSU2 types of capacitive touch sensing units.
- 应用说明英语PDF 390 KB R01AN7977EG0100 Rev.1.00 2025年7月29日This security manual provides guidance on how to effectively utilize features integrated into the RA2A1 MCU Group to create a product with an appropriate level of cybersecurity, thereby protecting the content and operation of the MCU when integrated into an end product. Ultimately, the application developer is responsible for conducting a security analysis, creating a threat model, and determining which security features are necessary and how to implement them for their specific product.
- 应用说明英语PDF 2.87 MB R11AN0471EU0107 Rev.1.07 2025年7月28日AI 生成的摘要: Low Power Modes (LPM) reduce the effective power consumption of RA microcontrollers by stopping the CPU and selectively operating peripherals and oscillators. Four LPM types are supported: Sleep, Software Standby, Snooze, and Deep Software Standby modes, each offering different power savings and peripheral availability. The document details configuring LPMs, clock source changes at run-time, peripheral operations during LPM, and transitioning between modes. It includes example projects demonstrating LPM usage, FSP configuration steps, and debugging methods across various RA kits, enabling efficient low power application development.相关文件：
- 技术更新英语
- 其他英语RA2A1 Group HandbookRECOMMENDEDThe RA2A1 group handbook organizes essential information and materials for product development according to each development phase. Please use this handbook as a resource during the planning and development stages for the RA2A1 group.
- 手册 - 硬件英语Renesas RA2A1 Group User's Manual: HardwareRECOMMENDEDThe RA2A1 Group is a high-performance, low-power microcontroller featuring a 48MHz Arm Cortex-M23 core combined with a rich analog front end, including two types of A/D converters. It is well-suited for applications that require high-accuracy measurement and calibration of sensor signals. The RA2A1 Group User’s Manual (Hardware) systematically summarizes the main functions of the product, such as the ADCs, timers, and communication functions, as well as its electrical characteristics.
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- 手册 - 硬件英语Renesas RA2A1 Group User's Manual: HardwareRECOMMENDEDThe RA2A1 Group is a high-performance, low-power microcontroller featuring a 48MHz Arm Cortex-M23 core combined with a rich analog front end, including two types of A/D converters. It is well-suited for applications that require high-accuracy measurement and calibration of sensor signals. The RA2A1 Group User’s Manual (Hardware) systematically summarizes the main functions of the product, such as the ADCs, timers, and communication functions, as well as its electrical characteristics.
- 指南中文相关文件：
手册和指南 (3)
- 应用说明英语Functional safety functions are becoming an important on system design as automatic electronic control systems continue to expand to a wide range of applications. This APN describes the software for capacitive touch sensor(CTSU) functional safety self test.
- 应用说明英语PDF 703 KB R20AN0564EU0163 Rev.1.63 2026年3月11日The EK-RA2A1 example project shows how to write code for various Renesas Flexible Software Package (FSP) modules supported by the EK-RA2A1 kit. The Flexible Software Package provides an optimized, easy-to-use, scalable, and high-quality software solution for embedded system design.相关文件：
- 应用说明英语PDF 283 KB R01AN6054EJ0160 Rev.1.60 2026年3月03日Recommended operating conditions are provided to help prevent device damage in Renesas RA family MCUs when injection current is introduced at I/O pins by external factors. The document outlines the maximum allowable injection current for each RA product and explains how to calculate appropriate series resistors to limit injection current, providing design guidelines for system development.
- 应用说明英语AI 生成的摘要: This application note introduces recommended resonators for the RX and RA families along with the relevant resonator matching evaluation results, oscillation evaluation methods, and some recommendations on board design as information for the design of the main clock oscillation circuit and the sub-clock oscillation circuit.
- 应用说明英语PDF 1.02 MB R01AN6628EU0110 Rev.1.10 2025年8月12日This application note introduces general Ethernet design concepts and the RA Ethernet controller and interface to the PHY peripheral. It provides design guidelines when using the RA MCU with RMII modes for Ethernet-specific applications explaining how to utilize the FSP configurator to integrate the Ethernet module and ensure proper configuration. It guides the integration of a new PHY into custom boards, including setup and software support through FSP, and describes MDIO communication between the MCU and PHY.查看更多 (42)
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产品通告（产品变更、EOL 等） (6)
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- 其他英语This document provides supplementary explanations of the peripheral functions chapter of the hardware manual for RA microcontrollers based on frequently asked questions.相关文件：
- 其他英语This document provides supplementary explanations of the electrical characteristics chapter of the hardware manual for RA microcontrollers based on frequently asked questions.相关文件：
- 其他英语RA2A1 Group HandbookRECOMMENDEDThe RA2A1 group handbook organizes essential information and materials for product development according to each development phase. Please use this handbook as a resource during the planning and development stages for the RA2A1 group.
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- 证书英语PDF 143 KB 20210421-rd-INFO-PBER-TL2-281931 2021年4月21日
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Renesas Boards & Kits
EK-RA2A1
有效
RA2A1 MCU 群组评估套件
EK-RA2A1 评估套件可通过瑞萨电子的灵活配置软件包 (FSP) 和各种 IDE，帮助用户对 RA2A1 MCU 群组的特性轻松进行评估，并对嵌入系统应用程序进行开发。
入门
运行快速入门示例项目
- EK-RA2A1 板已经预先烧录了快速入门示例项目（在“下载”页面中提供了示例项目）。
- 用户可使用连接至 5V 电源的 micro USB 设备电缆，通过 USB 调试端口 (J11) 启动 EK-RA2A1 板。绿色电源 LED 灯将会亮起。
- 快速入门示例项目将开始运行，红色用户 LED 灯将开始闪烁。
- 请参见 EK-RA2A1... 阅读详情
ASi-5 多传感器网络开发套件
EU036-MULTISENSEVZ 概念验证板展示了通过 ASi-5 快速读取来自众多传感器的数据，并将数据快速写入其他微控制器单元的能力。 电路板上支持的传感器可测量空气或液体流速、相对湿度、温度、室内或室外空气质量、距离、SpO2/心率或客户自己的模拟传感器。 EU036-MULTISENSEVZ 的辅助材料包括原理图、BOM 和大量演示软件。 使用您最喜爱的瑞萨 MCU 和/或 ASi-5 总线快速启动多传感器开发！
远程测试该板卡
该板卡已上线云上实验室（Lab on the Cloud)，使用我们的 PC 图形界面，无需实体板卡，便可在虚拟实验室中立即开始配置和测试设计。
Partner Boards & Kits
Evaluation
RA Family Microcontroller Board
NEWThis solution provides a general-purpose evaluation board featuring Renesas RA Family microcontrollers. It is available as a standalone evaluation board or as part of functional kits supporting applications such as CAN, touch key interfaces, and brushless motor control.
Provided By:
HOKUTO DENSHI加载中
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Partner Solutions
- 软件包中文RA 可扩展性强的配置软件包 (FSP)RECOMMENDEDFSP 是一款增强型软件包，旨在为使用瑞萨电子 RA 系列 Arm 微控制器的嵌入式系统设计提供简单易用且可扩展性强的高质量软件。
- IDE 和编码工具英语Arm® Keil® MDK is a comprehensive software development solution for Arm-based microcontrollers, including RA Family MCUs, containing all the components that you need to create, build, and debug embedded applications.提供商: Arm® Keil® MDK Arm®
- IDE 和编码工具中文IAR Embedded Workbench for Arm 是 IAR 为 Arm 开发环境打造的一体化嵌入式开发平台，它拥有完善的工具链，涵盖高度优化的 C/C++ 编译器、调试器和分析工具等。提供商: IAR Systems
- 解决方案工具包英语This development assistance tool supports the development of embedded systems to perform high-precision sensing for microcontrollers with built-in analog front-end (AFE). [Plugin for Renesas IDE "e2 studio"] [Standalone Version] [Support MCU/MPU:RA, RX]
- 解决方案工具包英语In developing embedded system using the capacitive touch sensor of MCUs, you can easily setup initial configurations of the touch interface as well as process the tuning of sensors, and reduce development time. [Plugin for Renesas IDE "e2 studio"] [Standalone Version] [Support MCU/MPU:RA, RL78, RX, Renesas Synergy™]
- 解决方案工具包英语The Renesas RA Smart Configurator (RA SC) is a desktop application that helps you in configuring software systems (including a Board Support Package (BSP), drivers, RTOS, and middleware) for RA-Family MCUs when you are using a third-party IDE and toolchain.
- 仿真器英语On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RH850, R-Car D1, RL78, RX, RISC-V MCU]
- 仿真器英语On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RL78, RX, RISC-V MCU]
- 仿真器英语With their outstanding performance, robustness, and ease of use, J-Link debug probes are widely recognized as the market-leading debug probes today.提供商: SEGGER
- 编程器（单元/软件）英语On-chip debugging emulator available as a flash memory programmer [Available flash programming software: Renesas Flash Programmer] [Support MCU/MPU and devices: RE, RX, RL78, RH850, RISC-V MCU, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver]
- 编程器（单元/软件）英语On-chip debugging emulator available as a flash memory programmer [Available flash programming software: Renesas Flash Programmer] [Support MCU/MPU and devices: RX, RL78, RISC-V MCU, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver]
- 编程器（单元/软件）英语Flash memory programmer [Programming software: Dedicated GUI-based software, the "FP6 Terminal"] [Support MCU/MPU and devices: RA, RE, RX, RL78, RH850, RISC-V MCU, Renesas Synergy, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver, SuperH RISC engine, V850, 78K, R8C]
- 软件包中文RA 可扩展性强的配置软件包 (FSP)RECOMMENDEDFSP 是一款增强型软件包，旨在为使用瑞萨电子 RA 系列 Arm 微控制器的嵌入式系统设计提供简单易用且可扩展性强的高质量软件。
推荐 (1)
- 软件包中文RA 可扩展性强的配置软件包 (FSP)RECOMMENDEDFSP 是一款增强型软件包，旨在为使用瑞萨电子 RA 系列 Arm 微控制器的嵌入式系统设计提供简单易用且可扩展性强的高质量软件。
- IDE 和编码工具英语Arm® Keil® MDK is a comprehensive software development solution for Arm-based microcontrollers, including RA Family MCUs, containing all the components that you need to create, build, and debug embedded applications.提供商: Arm® Keil® MDK Arm®
- IDE 和编码工具中文IAR Embedded Workbench for Arm 是 IAR 为 Arm 开发环境打造的一体化嵌入式开发平台，它拥有完善的工具链，涵盖高度优化的 C/C++ 编译器、调试器和分析工具等。提供商: IAR Systems
- 解决方案工具包英语This development assistance tool supports the development of embedded systems to perform high-precision sensing for microcontrollers with built-in analog front-end (AFE). [Plugin for Renesas IDE "e2 studio"] [Standalone Version] [Support MCU/MPU:RA, RX]查看更多 (17)
软件与工具 (17)
- 示例代码英语The EK-RA2A1 example project shows how to write code for various Renesas Flexible Software Package (FSP) modules supported by the EK-RA2A1 kit. The Flexible Software Package provides an optimized, easy-to-use, scalable, and high-quality software solution for embedded system design.相关文件：
- 示例代码英语ZIP 4.18 MB r30an0469eu0100 2025年3月26日相关文件：
- 示例代码英语相关文件：
- 示例代码英语相关文件：
- 示例代码英语相关文件：查看更多 (9)
样例程序 (9)
模拟模型 (1)
- Application Specific SW中文Enables adaptive pedestrian traffic light control by detecting and counting pedestrians and calculating wait times in real-time, with no network connection required. Runs entirely at the edge on the Renesas RA8P1 MCU, accelerated by the Arm® Ethos-U55 Neural Processing Unit (NPU), achieving 11ms inference time within a ...Supported Products: RA8P1提供方: Irida Labs
- AI中文Local AI–based Audio Event Detection identifies sound events such as baby crying and glass breaking with ~95% accuracy and 10–100 ms latency, enabling fast and reliable response to critical events. Supports deployment on Cortex-M0+ and comparable RISC-V/NPU/DSP platforms. Model size ranges from ...提供方: Aizip Inc.
- Development Tool中文Provides tools for developing real‑time, safety‑ and security‑critical embedded software by combining static analysis, unit testing, code coverage, requirements traceability, and compliance reporting in a unified workflow. Supports a TÜV SÜD‑certified GoogleTest‑based unit testing solution and integrates with modern development toolchains and continuous integration and continuous ...提供方: PARASOFT
- AI中文Provides local voice trigger and command recognition with robust noise reduction. Consumes very low resources while delivering high-accuracy performance. Runs on Renesas RA microcontroller unit (MCU) family, RX671, and RX72N, supporting multiple languages, connectivity functions, and security capabilities depending on the selected MCU. Enables offline operation without cloud connectivity ...提供方: Cyberon
- AI中文Provides local free speech control by combining speech recognition and natural language processing. Enables users to give natural and intuitive voice commands without memorizing specific terms. Supports developer tools for creating applications with simple text input, requiring no training data. Runs on Renesas RA8 microcontroller unit (MCU) platforms.提供方: Cyberon查看更多 (29)
Partner Solutions (29)
Easily tune and evaluate a microcontroller (MCU) with built-in analog front end (AFE) without external measuring equipment or developing software for AFE evaluation.
The Renesas RA Family of 32-bit MCUs is designed to help device developers create the next generation of secure IoT devices. They are low power, have a wide variety of peripherals and connectivity options, and sport the latest HMI to help end customers have an immersive experience.
Introduction to the evaluation kits for the Renesas Advanced Microcontrollers. Select from an assortment of ecosystem-ready kits to jumpstart developing your next embedded systems or IoT design. All the kits feature serial connectivity on-board debugging interface and provide unhindered native access to all MCU IO pins.
了解瑞萨电子如何帮助您驾驭艰巨的安全世界，并帮助您设计安全性，从而避免代价高昂的错误和重新设计。
新闻和博客
支持社区
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RA2A1 定时器0使用LEC触发ADC
我想问下关于GPT0使用ELC触发RA2A1的ADC16问题，我使用的是keil进行开发 GPT0设置的是500ms周期中断 ELC的设置如下： err = R_ELC_Open(&g_elc ...
2022年5月9日 -
关于RA2A1，ADC16的ADC_CHANNEL_VOLT通道的疑问
一、问题描述 分别将参考高电平设置为外部参考电压（外接3.3V）、内部参考电压2.5V、内部参考电压2.0V、内部参考电压1.5V ...
2022年11月3日 -
EK-RA2A1开发板无法通过MDK进调试，缺少对应Flash下载算法
请问一下，这个下载算法之后能提供吗？
2021年8月26日
知识库
-
为RA MCU找到合适的晶体
通过使用如下所示的搜索，可以从晶振制造商的网站上找到RA MCU上的子时钟谐振器所需的晶振： RA2系列（RA2A1以外）： https://www ...
2022年6月24日 -
为了获得 48 MHz 的 USB 时钟，您必须使用 12 MHz 的 USB 时钟，这是否正确？
Last Updated: 06/10/2025 Question: 为了获得 48 MHz 的 USB 时钟，您必须使用 12 MHz 的 USB 时钟，这是否正确？ Answer: 使用 RA2A1 时USB clock 使用 HOCO 作为 clock source，因此 ...
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RA2: 外部存储器接口
RA2系列是单芯片微控制器，没有外部总线接口。因此，无法将外部存储器连接到CPU的地址和数据总线上。
2025年7月9日
