Renesas Electronics FPB-RL78G21 Fast Prototyping Board
Renesas Electronics FPB-RL78G21 Fast Prototyping Board is an entry point for evaluation, prototyping, and development with the RL78/G21 MCU. The board includes a USB-UART converter for COM Port debugging, enabling programming and debugging without extra tools. Flexibility and expandability are supported via Pmod™, Grove, and Arduino® Uno interfaces. The Renesas Electronics FPB-RL78G21 includes through-holes for pin headers, providing access to all MCU signal pins.
Features
- An entry point for evaluation, prototyping, and development with the RL78/G21 MCU
- USB-UART converter for COM Port debug function, enabling programming and debugging without extra tools
- Flexibility and expandability by supporting Pmod and Grove, Arduino Uno interfaces
- Through-holes for pin headers that allow access to all MCU signal pins
- Includes R7F103GLJ3ZFB mounted on the board
- Includes 256KB of code Flash, 8KB RAM, and 4KB of data Flash
- One reset switch
- One user switch
- One green LED power indicator
- Two green LED user indicators
- One 6-pin, two 8-pin, and one 10-pin Arduino connectors
- Two 12-pin (right-angle type) Pmod connectors
- One I2C interface connector for Grove modules (not connected)
- One micro USB Type-B connector
Applications
- Home appliances and smart home appliances
- Consumer electronics
- Industrial
Resources
Videos
Board Features
Related Microcontroller
Renesas Electronics RL78/G21 16-Bit General-Purpose MCU
A cost-optimized, low-power MCU primarily designed for system control applications.
Published: 2026-10-22
| Updated: 2026-10-29