特性
- CPU：RL78 核心，最高 32MHz
- 电压：1.6V 至 5.5V
- 封装：16 引脚至 48 引脚
- 闪存：程序闪存：32-64KB，SRAM 4KB，数据闪存 2KB
- 工作温度范围：可达 105°C
- 增强型电容式感应单元（CTSU2L）
- 定时器：8 路 16 位定时器、1 路看门狗定时器、1 路 32 位间隔定时器
- PWM：7 路 PWM 输出
- 模拟功能：10 路 10 位 A/D 转换器
- 片上振荡器频率 （MHz）：高速：最高 32MHz
- 中速：最高 4MHz
- 低速：32.768kHz
- 贪睡模式排序器
- 事件链路控制器
- 其他：RTC、上电复位、低电压检测
- 封装：SSOP、LQFP、HWQFN、WFLGA
RL78/G22 Block Diagram
描述
除了具有低电流消耗（CPU 工作时：37.5μA/MHz；STOP 时：200nA）外，RL78/G22 微控制器还配备了丰富的电容触摸通道。
RL78/G22 MCU 支持最大 32 MHz的工作频率，1.6V~5.5V 工作电压，并支持增强的模拟功能和安全功能。 此外，在间歇工作时，SNOOZE 模式的定序执行功能可以大幅度降低 MCU 的功耗。 此外，还可为 RL78/G22 提供丰富的开发环境，评估板（Fast Prototyping Board）只需连接 USB 线而无需额外工具即可编写和调试程序，智能配置器（Smart Configurator）可通过 GUI 简化设计。 它与现有的 RL78 系列兼容，可无缝切换，适用于从家电、消费类电子产品到工业设备的广泛用途。
在 EEMBC 的基准测试项目“ULPMark-PP（ULPMark 外设配置）”中，创下微控制器的全球最高得分纪录：330 分（1.8V）与 190 分（3.0V）（截至 2025 年 9 月 10 日）。 ULPMark-PP 是国际通用基准测试，用于定量评估微控制器内集成外设功能的能效表现。
产品参数
| 属性 | 值 |
|---|---|
| Program Memory (KB) | 32, 64 |
| Data Flash (KB) | 2 |
| RAM (KB) | 4 |
| Carrier Type | Full Carton (Tray), Full Tray (Tray), Magazine, Tape & Reel |
| Supply Voltage (V) | 1.6 - 5.5 |
| I/O Ports | 12, 16, 20, 21, 26, 28, 32, 36, 40, 44 |
| Temp. Range (°C) | Ta = -40 to +85, Ta = -40 to +105 |
| Operating Freq (Max) (MHz) | 32 |
| USB FS (host ch/device ch) | ( 0 / 0 ) |
| SCI or UART (ch) | 1, 2, 3, 4 |
| SPI (ch) | 1, 2, 3, 4, 5 |
| I2C (#) | 2, 3, 4, 5, 6 |
| CAN (ch) | 0 |
| CAN-FD (ch) | 0 |
| Wireless | No |
| LIN (#) | 0, 1 |
| 16-Bit Timer (ch) (#) | 8 |
| 12-Bit A/D Converter (ch) | 0 |
| 10-Bit A/D Converter (ch) | 3, 6, 8, 9, 10 |
| 24-Bit Sigma-Delta A/D Converter (ch) | 0 |
| 12-Bit D/A Converter (ch) | 0 |
| 10-Bit D/A Converter (ch) (#) | 0 |
| 8-Bit D/A Converter (ch) | 0 |
| Capacitive Touch Sensing Unit (ch) | 5, 9, 11, 12, 16, 17, 21, 23, 25, 29 |
| Segment LCD Controller | No |
| Security & Encryption | Unique ID, TRNG |
封装选项
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| HWQFN | 3 x 3 x 0.8 | 16 | 0.5 |
| HWQFN | 4 x 4 x 0.8 | 24 | 0.5 |
| HWQFN | 5 x 5 x 0.8 | 32 | 0.5 |
| HWQFN | 6 x 6 x 0.8 | 40 | 0.5 |
| HWQFN | 7 x 7 x 0.8 | 48 | 0.5 |
| LFQFP | 7 x 7 x 1.7 | 48 | 0.5 |
| LQFP | 7 x 7 x 1.7 | 32 | 0.8 |
| LQFP | 10 x 10 x 1.6 | 44 | 0.8 |
| LSSOP | 6 x 4 x 1.45 | 20 | 0.65 |
| LSSOP | 9.85 x 6.1 x 1.4 | 30 | 0.65 |
| WFLGA | 3 x 3 x 0.76 | 25 | 0.5 |
| WFLGA | 4 x 4 x 0.76 | 36 | 0.5 |
应用方框图
 | 适用于家用电器的先进低功耗无线 HMI 配备 Wi-Fi 6 和蓝牙 5.1 的先进低功耗 HMI 可实现无缝智能家电控制。 |
 | 自动宠物门与追踪系统 带标签系统的智能宠物门，可通过近距离检测技术实现宠物自动进出与走失追踪功能。 |
 | 防中暑手表 一款低功耗可穿戴设备，能够检测中暑风险，提醒用户尽早采取行动。 |
 | 商业建筑烟雾探测器 用于火灾报警器的商用烟雾探测系统功耗极低、配置简单。 |
 | 门禁系统，具有 NFC、摄像头和电容式触摸身份验证功能 门禁系统通过 NFC、Wi-Fi、PoE、本地存储和灵活的操作系统支持确保安全性。 |
其他应用
- 通用
- 民用
- 家电
- 工业自动化
- 楼宇自动化
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Renesas Boards & Kits
FPB-RL78G22
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RL78/G22 快速原型开发板
RL78/G22 快速原型开发板采用 RL78/G22 微控制器，是各种原型开发的理想选择。 它通过示例代码支持二级 MCU 的 OTA 固件更新、Wi-Fi、LoRa 和基于 LoRaWAN 的无线通信等。 内置的仿真器电路相当于 E2 仿真器 Lite，无需额外工具即可进行编程和调试。 此外，它还具有 Arduino Uno 和 Pmod™ 接口，可连接所有微控制器引脚，并且具有高可扩展性。 它包括两个触摸按钮和一个使用电容式传感器单元的滑块，这是 RL78/G22 独有的。 瑞萨电子还提供了一个 Arduino 库，支持在 Arduino IDE 里创建各种程序... 阅读详情
RSSK-RL78G22
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RL78/G22 电容式触摸评估系统
RL78/G22 电容式触摸评估系统使用户能够轻松评估瑞萨电子提供的触摸解决方案。 您可以使用套件中的电路板和软件即刻开始评估，开箱即用。
产品配置
- RL78/G22 CPU 板
- 触摸应用板
- 内置电容式触摸的自电容式评估板基础知识：开关、滑块和滚轮
Partner Boards & Kits
Evaluation
RL Family Microcontroller Board
This solution provides a general-purpose evaluation board featuring Renesas RL Family microcontrollers. It is offered as a standalone board or as kit products supporting functions such as LIN, CAN, touch key interfaces, and brushless motor control.
Supported Products:
RL78/G10,RL78/G11,RL78/G12,RL78/G13,RL78/G13A,RL78/G14,RL78/G1A,RL78/G1C,RL78/G1F,RL78/G1G,RL78/G1M,RL78/G1N,RL78/G1P,RL78/G22,RL78/G23,RL78/G24,RL78/L12,RL78/L13,RL78/L23,RL78/I1A,RL78/I1C,RL78/I1D,RL78/H1D,RL78/F12,RL78/F13,RL78/F14,RL78/F15,RL78/F24,RL78/F25Provided By:
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Partner Solutions
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- IDE 和编码工具英语Eclipse-based Renesas integrated development environment (IDE).
- IDE 和编码工具英语IAR Embedded Workbench provides extensive support for RL78 devices. IAR Embedded Workbench is a complete set of development tools with leading optimization technology for creating powerful automotive applications.提供商: IAR Systems
- IDE 和编码工具英语Renesas IAR Embedded Workbench Device-Support-Packages include all device-specific files to be used with the Embedded Workbench IDE.
- 编译器/汇编器英语C Compiler Package for RL78 Family [IDE: CS+, e² studio]
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- 解决方案工具包英语QE for Lighting & Power is an assistance tool for smart lighting and digital power solutions, integrating Renesas libraries, software, compilers, and evaluation boards for efficient development and validation. [Standalone Version] [Support MCU/MPU:RL78]
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- 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]
- 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]
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- IDE 和编码工具中文瑞萨电子集成开发环境（IDE）[支持 MCU/MPU：RH850、V850、RX、RL78、78K0R、78K0] （注意：CS+ 通常不会向美国和欧洲客户推广。） （注意：要在 CS+ 上对 RL78/G23 和 RX 系列 MCU 使用智能配置器，请为每个 MCU 系列安装智能配置器，从“设计和支持”>“开发工具”>“智能配置器”下载）
- IDE 和编码工具英语Eclipse-based Renesas integrated development environment (IDE).
- IDE 和编码工具英语IAR Embedded Workbench provides extensive support for RL78 devices. IAR Embedded Workbench is a complete set of development tools with leading optimization technology for creating powerful automotive applications.提供商: IAR Systems
- IDE 和编码工具英语Renesas IAR Embedded Workbench Device-Support-Packages include all device-specific files to be used with the Embedded Workbench IDE.
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