Renesas RX23E-A

MCU with High-precision On-chip Analog Front End


  • Highly Integrated Dual 24-bit Delta-Sigma ADC as One-chip Microcontroller Solution
  • 32-bit RXv2 MCU at 32 MHz with FPU, up to 256 KB Flash, Various Communication Interfaces
  • Simultaneous Measurement Trigger for Multiple Analog Signals by Using Dual ADC and ELC
  • Three Low Power Consumption Modes

The RX23E-A group microcontrollers are equipped with a high-end analog front end that can be used for temperature, pressure, flow or weight measurement with more than 0.1% precision without calibration, making it ideal for high-precision sensing, test, and measurement equipment. The RXv2 core microcontroller with DSP / FPU operations, enables high-accuracy measurement, control, and communication with a single chip. The Analog front-end also includes highly precise voltage references, matched and programmable excitation current sources and rail-to-rail PGAs.

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  • Enhanced DSP: 32-bit multiply-accumulate and 16-bit multiply subtract instructions supported
  • 32-bit single-precision floating-point on-chip debugging circuit
  • Memory protection unit (MPU)
  • Operation from a single 1.8 to 5.5 V power supply
  • Three low power consumption modes
  • 128 KB to 256 KB code flash
  • On-chip data flash memory: 8 KB (1,000,000 program/erase cycles (typ.))
  • On-chip SRAM, 16- to 32-KB
  • 4 ch DMAC
  • 4 ch DTC
  • Event Link Controller
  • CAN (one channel) compliant to ISO11898-1: transfer at up to 1 Mbps
  • SCI with many useful functions (up to four channels)
  • I2C bus interface: Transfer at up to 400 kbps, capable of SMBus operation (one channel)
  • RSPI (one channel): transfer at up to 16 Mbps
  • 16-bit MTU: input capture, output compare, complementary PWM output, phase counting mode (6 ch)
  • 8-bit TMR 4 ch
  • 16-bit compare-match timers 2 ch
  • Two 24-bit delta-sigma A/D converters
  • A/D converter with up to 23-bit effective resolution (gain = 1, output data rate = 7.6 SPS)
  • High-precision programmable gain instrumentation amplifier, 30 nVRMS (gain = 128, output data rate = 7.6 SPS)
  • Rail-to-rail programmable gain instrumentation amplifier (gain = 1 to 128)
  • Offset drift 10 nV/°C (gain = 128)
  • Gain drift 1 ppm/°C (gain = 1 (PGA), gain = 2 to 128)
  • 12-bit A/D converter 6 ch with 1.4 µs conversion time
  • Operating Temperature: –40 to +105°C


  • Scale
  • Force Sensor
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