This combination of performance and features positions the RX261/RX260 group MCUs for applications such as home appliances, building and factory automation, and many others including smart locks, e-bikes, and mobile thermal printers.
The RX261/RX260 group MCUs are based on the Renesas RXv3 CPU core, which achieves a CoreMark score of 355 at 64 MHz. This score is 2.5 times higher than that of competing 64 MHz MCUs. Compared to other 64 MHz microcontrollers, the RX261/RX260 also reduces active current by 25% and standby current by 87%.

The Renesas third-generation capacitive touch IP (CTSU2SL) offers high noise immunity and water resistance, enabling users to implement touch sensors in kitchen appliances and outdoor equipment, such as smart locks. The self-evaluation function reduces current consumption during intermittent operation by allowing touch detection even in standby mode. The QE for Capacitive Touch tuning tool, design guides, and sample programs facilitate the implementation of touch sensors in a wide range of applications.
Many industrial and consumer systems today offer wireless connectivity features such as Bluetooth and/or Wi-Fi to enable smartphone control or the downloading of new firmware from cloud servers. By implementing security features with the Renesas Secure IP (RSIP-E11A) and flash protection functions, users can safeguard their applications from unauthorized use, such as data spoofing and eavesdropping. Sample programs help users quickly and easily implement secure boot and secure firmware updates.
The RX261 group MCUs offer a wide range of features, including a high-speed USB function controller with a high-speed on-chip oscillator (HOCO) that eliminates the need for external crystals to generate an accurate USB clock. A CAN FD module is also included, enabling fast and reliable communication. Unlike other MCUs, the RX261/RX260 include 8 KB of data flash memory, allowing customers to forgo an external EEPROM.


Main features of the RX261/RX260 group MCUs (* available only on RX261)
RXv3 core at 64 MHz (355CoreMark)
Memory: 256 KB/384 KB/512 KB code flash, 8 KB data flash, 128 KB SRAM
Low power consumption (69μA/MHz active; 1μA standby)
Waterproof touch sensing
IP security RSIP-E11A*: AES, ECC and SHA engines and robust management functions
Peripherals: Full speed USB (host/function)*, CAN FD*, RSIP-E11A*, CTSU2SL, UART, I2C, SPI, 12-bit ADC, 8-bit DAC, comparator, PWM timer, low power timer.
Operating range: 1.6V to 5.5V, -40°C to 85°C/105°C.
Package options: 48/64/80/100-pin LFQFP, 48-pin HWQFN.
Compatible with 5V power supplies: High noise immunity and dynamic range of analog inputs.