NewsRenesas Unveils the New RX23E-B MCU with Enhanced Capabilities for Industrial Automation

Renesas Unveils the New RX23E-B MCU with Enhanced Capabilities for Industrial Automation

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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.

Michal Pukala
Electronics and Telecommunications engineer with Electro-energetics Master degree graduation. Lightning designer experienced engineer. Currently working in IT industry.