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Renesas Electronics RX23T 40MHz 32-bit RX MCUs

Renesas Electronics RX23T 40MHz 32-bit RX MCUs are designed for single inverter control. The RX23T allows easy programming in complex inverter control algorithms with the built-in FPU (floating-point processing unit). These features greatly reduce the time required for software development and maintenance. The Renesas Electronics RX23T 32-bit RX MCUs provide an RX200 core that consumes a small 0.45 μA current, in software standby mode (with RAM retention).

The RX23T microcontrollers operate in a wide voltage range from 2.7V to 5.5V, which is useful for inverter control. The MCUs are highly compatible with the RX62T series at the pin arrangement and software level.

Features

  • 32-bit RX CPU core
    • 40MHz Max. operating frequency
    • Capable of 65.6DMIPS in operation at 40MHz
    • Enhanced DSP: 32-bit multiply-accumulate and 16-bit multiply-subtract instructions supported
    • Built-in FPU: 32-bit single-precision floating point (compliant to IEEE754)
    • Divider (fastest instruction execution takes two CPU clock cycles)
    • Fast interrupt
    • CISC Harvard architecture with 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 2.7V to 5.5V supply
    • Three low power consumption modes
  • On-chip code flash memory, no wait states
    • 128-/64-Kbyte capacities
    • On-board or off-board user programming
  • On-chip SRAM, no wait states
    • 12 Kbytes of SRAM
  • DMA
    • DTC: Four transfer modes
  • Reset and supply management
    • Seven types of reset, including the power-on reset (POR)
    • Low voltage detection (LVD) with voltage settings
  • Clock functions
    • 1 to 20MHz Main clock oscillator frequency
    • Up to 20MHz external clock input frequency
    • PLL circuit input: 4MHz to 12.5MHz
    • On-chip low-speed oscillator, on-chip high-speed oscillator, dedicated on-chip oscillator for the IWDT
    • Clock frequency accuracy measurement circuit (CAC)
  • Independent watchdog timer
    • 15kHz on-chip oscillator produces a dedicated clock signal to drive IWDT operation
  • Useful functions for IEC60730 compliance
    • Self-diagnostic and disconnection-detection assistance functions for the A/D converter, clock frequency accuracy measurement circuit, independent watchdog timer, RAM test assistance functions using the DOC, etc
  • MPC
    • Multiple locations are selectable for I/O pins of peripheral functions
  • Up to 4 communications channels
    • SCI with many useful functions (2 channels)
    • Asynchronous mode, clock synchronous mode, smart card interface mode, simplified SPI, simplified I2C, and extended serial mode
    • I2C bus interface can transfer at up to 400kbps (one channel)
    • RSPI capable of high speed connection (one channel)
  • Up to 12 extended-function timers
    • 16-bit MTU3: 40MHz operation, input capture, output compare, three-phase complementary PWM output, CPU efficient complementary PWM, phase counting mode (six channels)
    • 8-bit TMRs (4 channels)
    • 16-bit compare-match timers (4 channels)
  • 10ch 12-bit A/D converter
    • 12-bit × up to 3 channels on-chip sample-and-hold circuit
    • Sampling time can be set for each channel
    • Self-diagnostic function and analog input disconnection detection assistance function (compliant to IEC60730)
    • ADC - three sample-and-hold circuits, double data registers, comparator (3 channels)
  • Register write protection function can protect values in important registers against overwriting
  • Up to 50 pins for general I/O ports
    • 5V tolerant, open drain, input pull-up
  • Operating temperature range
    • -40 to +85°C
    • -40 to +105°C

Applications

  • General industrial and consumer equipment

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Block Diagram

Block Diagram - Renesas Electronics RX23T 40MHz 32-bit RX MCUs
Published: 2020-04-22 | Updated: 2022-03-10