Renesas Electronics RX261 & RX260 Microcontrollers
Renesas Electronics RX261 and RX260 Microcontrollers are 32-bit microcontrollers that deliver outstanding power efficiency and advanced touch functions. These microcontrollers are equipped with CTSU2SL as an HMI function. The CTSU2SL supports multi-frequency scanning to reduce noise-induced false detections, an active shield to suppress water effects on electrodes, automatic judgment, and the MEC function feature. The RXv3 core delivers a high performance of 355CoreMark at 64MHz operation and features 69μA/MHz active current and 1μA standby current. These microcontrollers include an area protection function that allows the user to set a non-rewritable area in code flash memory. The RX261 and RX260 are ideal for consumer electronics, building automation, industrial automation, and medical and healthcare.
Features
- 32-bit RXv3 CPU core:
- 64MHz maximum operating frequency
- Enhanced DSP instructions: 32-bit multiply-accumulate instructions and 16-bit multiply-subtract instructions are supported
- On-chip FPU: 32-bit single-precision floating point compliant with IEEE-754
- Fast interrupt
- CISC Harvard architecture with a 5-stage pipeline
- Variable-length instructions, ultra-compact code
- On-chip debugging circuit
- Memory Protection Unit (MPU) supported
- Low power design and architecture:
- Operation from a single 1.6V to 5.5V supply
- Four low-power consumption modes
- Low Power Timer (LPT) that operates during the software standby state
- Supply current:
- 84µA/MHz high-speed operating mode
- 1.01µA (typical) (Ta = 25°C) supply current in software standby mode
- 6.3µs (typical) (Clock source: HOCO 64MHz, Ta = 25°C) recovery time from software standby mode
- On-chip flash memory for code:
- 256 K/384 K/512 Kbytes size capacities
- User code is programmable by on-board programming.
- Programmable at 1.6V
- For instructions and operands
- On-chip data flash memory:
- 8Kbytes (1,000,000 program/erase cycles (typical))
- Background operation (BGO)
- Clock functions:
- Up to 20MHz external main clock input frequency
- 32.768kHz external sub clock input frequency
- 1MHz to 20MHz main clock oscillator frequency range
- 32.768kHz sub clock oscillator frequency
- 4MHz to 12.5MHz PLL/PLL2 circuit input range
- 4MHz low-speed on-chip oscillator
- 24/32/48/64MHz ± 1% high-speed on-chip oscillator
- 15kHz IWDT-dedicated on-chip oscillator
- Generate a 32.768kHz clock for the real-time clock
- On-chip clock frequency accuracy measurement circuit (CAC)
- 12-bit A/D converter:
- Capable of conversion within 0.5µs
- 24 (external pin input) +1 (internal input) channels
- Sampling time can be set for each channel
- Conversion results compare features
- Self-diagnostic function and analog input disconnection detection assistance function
- Double trigger (data duplication) function for motor control
Applications
- Home appliances (cookers, water heaters, refrigerators, washers)
- Building automation (elevators, HVAC, thermostats)
- Industry automation (PLCs, robots)
- Healthcare (blood glucose monitors, wearable devices)
Block Diagrams
Example Application
Resources
- Differentiate HMI Products with Energy-Saving and High-Precision Touch Functions with RX261/RX260 MCUs
- Renesas Introduces New RX261/RX260 Group MCUs with Outstanding Power Efficiency, Advanced Touch Functions and Robust Security
- User’s Manual: Hardware
- User’s Manual: Software
- RX261,260 Handbook for Engineers
- White Paper: Implement High-Precision Capacitive Touch Sensor Across a Wide Range of HMI Applications
- Application Note: Differences Between the RX260/RX261 Group and RX210 Group
- Application Note: Differences Between the RX260/RX261 Group and the RX130 Group
- RX Family Part Number Guide
Evaluation Board
Renesas Electronics EK-RX261 Evaluation Board for RX261
Evaluate and develop applications with the RX261 Microcontrollers.