Advanced Features of the RX23E-B MCU
Renesas Electronics Corporation, a key player in the field of advanced microcontrollers, has recently announced the launch of its new RX23E-B Microcontroller Unit (MCU). This latest addition to their product line boasts a 24-bit delta-sigma A/D converter, which is notably eight times faster than its predecessor, with a maximum sampling rate of 125 kS/S.
Core Specifications
- CPU Performance: The RX23E-B features a 32 MHz 32-bit RXv2 core, enhanced with Floating Point Unit (FPU) and Digital Signal Processing (DSP) instructions.
- Memory Allocation: It comprises 256 KB of code flash, 8 KB of data flash, and 32 KB of SRAM, catering to diverse application needs.
Analog and Conversion Capabilities
- High-Precision ADC: The MCU’s 24-bit Delta-Sigma ADC with Programmable Gain Amplifier (PGA) offers an ultra-low noise of 190 nVRMS at 977 SPS/gain=64.
- Analog Input and Other Features: The MCU supports ±10 V analog input and includes a 16-bit DAC, VREF, IEXC, VBIAS, LSW, TEMPS, and a 12-bit SAR ADC.
Communication and Timing Functions
- Extensive Communication Interfaces: The MCU is equipped with multiple communication channels, including 7 UARTs, 1 SCI, 1 RSPI, 1 I2C, and 1 CAN interface.
- Robust Timer Array: It includes 16-bit six-channel PWM timers, 8-bit four-channel and 16-bit two-channel general-purpose timers, along with an additional low-power timer.
Human-Machine Interface and Special Features
- LCD Support: The MCU can drive an LCD with 40 segments x 4 common.
- Key Characteristics: It features a real-time clock, a precise 24-bit Delta-Sigma A/D converter, and a 32-bit CPU with RXv2-core.
Compact Design and Package Variants
- Compact Form Factor: The MCU offers compact design options, including a 100-pin TFBGA package measuring just 5.5 mm x 5.5 mm.
- Diverse Packaging Options: Available in 48/64/80/100-pin LFQFP, 40-pin HWQFN, and 100-pin TFBGA.
The RX23E-B MCU also presents a 31.25kS/s variant, designed for applications demanding reduced power consumption and improved noise resistance at lower voltages. This variant significantly reduces RMS noise, offering high-precision control and data processing capabilities.
Application in Industrial Automation
To demonstrate the potential of the RX23E-B MCU, Renesas has engineered a pressure control system. This system leverages the MCU’s Fast Processing Unit (FPU) for swift and precise filter and Proportional-Integral-Derivative (PID) control calculations, crucial for industrial automation.
The RX23E-B MCU from Renesas represents a significant advancement in microcontroller technology, promising enhanced efficiency and accuracy in various industrial applications.
