RL78/F14

The RL78/F14 is a high-performance 16-bit microcontroller from Renesas Electronics Corporation, designed for applications requiring low power consumption and robust processing capabilities. Built on the RL78 CPU core, it operates at a maximum clock frequency of 32 MHz, enabling efficient execution of complex control tasks while maintaining ultra-low power modes. The device features up to 128 KB of flash memory and 16 KB of SRAM, offering ample space for firmware storage and real-time data handling. This microcontroller includes an advanced analog front-end with a 12-bit ADC (up to 16 channels), allowing precise signal acquisition from sensors or external inputs. It also supports multiple communication interfaces, including UART, I²C, and SPI, facilitating seamless integration into multi-component systems. Additionally, the RL78/F14 integrates a built-in timer module with PWM functionality, making it suitable for motor control, lighting, and power management applications. One of its standout features is the support for ultra-low-power operation, with a standby current as low as 0.1 μA in stop mode and a wake-up time under 3 μs from sleep. This makes it ideal for battery-powered devices such as portable instruments, smart meters, and IoT edge nodes where energy efficiency is critical. The chip also offers hardware-based security features, including a one-time programmable (OTP) memory for secure key storage and tamper detection mechanisms. The RL78/F14 is optimized for industrial, consumer, and automotive applications that demand reliable performance and long operational life. Its rich set of peripherals—such as a high-precision internal oscillator, watchdog timer, and interrupt controller—enables flexible system design without additional external components. The microcontroller supports in-system programming (ISP) and in-application programming (IAP), simplifying firmware updates and reducing development time. Designed for ease of use, the RL78/F14 comes with a comprehensive development ecosystem, including Renesas’ e2 studio IDE, compiler tools, and extensive documentation. It is supported by a wide range of evaluation kits and reference designs, accelerating prototyping and production ramp-up. With its combination of performance, power efficiency, and integrated functionality, the RL78/F14 delivers a compelling solution for modern embedded systems across diverse industries.