Renesas Renesas RX23E-A MCU with high-precision on-chip front end

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.

Key features

• 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

Additional features

• 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

Applications

• Scale
• Force Sensor

Available tools

• IDE and Software:
  • e2 studio, Smart Configurator, evaluation support tools, Sample code
• Solutions:
  • Communication Solution, Temperature Control Solution, Force Sensor Solution, Functional Safety Solution
• Solution Kit:
  • RSSK (HW board, MCU FW and PC GUI), RTK0ESXB10C00001BJ
• Documents and Application Notes:
  • Datasheet, Users Manual, Initial Settings AN, Various other Solution ANs