Renesas R5F523E6KGFM#30

Overview

R5F523E6KGFM#30 from Renesas is a 32-bit RXv2 microcontroller optimized for high-precision analog measurement in industrial sensing applications. It integrates a 24-bit delta-sigma ADC with ±10-V input capability, rail-to-rail programmable gain instrumentation amplifier (gain = 1–128), 256 KB on-chip flash, 32 KB SRAM, and CAN 2.0B interface - all operating at up to 32 MHz. Designed for weight scales, pressure transmitters, and strain-gauge systems requiring IEC 60730 compliance.

For engineers reviewing the R5F523E6KGFM#30 datasheet, R5F523E6KGFM#30 pinout, R5F523E6KGFM#30 application, or R5F523E6KGFM#30 equivalent, key selection criteria include its 10-V analog input range, 125 kSPS delta-sigma sampling rate, integrated excitation current sources (50–1000 µA), low-drift voltage reference (2.5 V, 8 ppm/°C), and support for self-diagnostic functions required in safety-critical sensor front-ends.

Technical Context

The R5F523E6KGFM#30 implements the RXv2 CPU core with IEEE 754-compliant 32-bit FPU, 64 DMIPS @ 32 MHz, and memory protection unit (MPU) for deterministic real-time execution. Its analog subsystem centers on the DSADB module - a 24-bit delta-sigma ADC with fourth- and fifth-order sinc filters, simultaneous 50/60 Hz rejection, and offset/gain error calibration.

Digital integration includes ELC-driven event-triggered operation (enabling CPU sleep during sensor acquisition), RSCAN CAN controller (1 Mbps, ISO 11898-1), and dual A/D subsystems: the high-resolution DSADB (8 differential inputs) and S12ADE 12-bit ADC (8 channels, 1.4 µs conversion). Power management supports software standby with LPT running off sub-clock.

Key Specifications

Pinout & Package

Package: PLQP0064KB-C - 64-pin Low-Profile Quad Flat Package, 10 × 10 mm body, 0.5 mm lead pitch, exposed thermal pad, RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-precision analog microcontroller applications.

Compared with R5F523E6JGFN, R5F523E6KGFM#30 saves board space and eliminates LCD driver overhead; compared with R5F523E5KGFM, it provides double flash/RAM for complex calibration algorithms and firmware-over-the-air updates - critical for field-deployed industrial sensors.

Availability

R5F523E6KGFM#30 is available at Aetrix Electronics and suitable for industrial weight scales, pressure transmitters, strain-gauge monitoring systems, and RTD-based temperature controllers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F523E6KGFM#30 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for industrial, automotive, and IoT applications.

The RX23E-B Group is designed specifically for high-accuracy sensor signal conditioning - integrating precision delta-sigma ADCs, programmable gain amplifiers, excitation sources, and safety features into a single MCU for industrial process control and test equipment.

FAQ

What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E6KGFM#30?

The R5F523E6KGFM#30 supports a maximum delta-sigma ADC sampling rate of 125 kSPS at lower resolution settings. At full 24-bit effective resolution, the achievable rate is 3.8 SPS with gain = 1 and fMOD = 4 MHz. The device allows programmable trade-offs between speed, resolution, and noise via sinc filter selection and modulator clock configuration.

Does R5F523E6KGFM#30 include an integrated voltage reference, and what is its accuracy?

Yes, the R5F523E6KGFM#30 includes an on-chip 2.5 V voltage reference with a temperature drift of 8 ppm/°C over –40°C to +85°C. It delivers ±10 mA output current and is used by the 24-bit delta-sigma ADC and 16-bit DAC. External reference inputs are also supported via DSAD_VREFH/DSAD_VREFL pins for higher precision applications.

What analog input voltage range does R5F523E6KGFM#30 support on its HVAIN pins?

The R5F523E6KGFM#30 supports a ±10-V input voltage range on its HVAIN0–HVAIN3 pins, enabling direct connection to industrial bridge sensors and load cells without external level-shifting circuitry. This high-voltage tolerance is maintained while preserving 24-bit delta-sigma resolution and low-drift performance across the full operating temperature range.

Is the R5F523E6KGFM#30 compatible with IEC 60730 Class B safety standards?

Yes, the R5F523E6KGFM#30 includes hardware-assisted self-test features required for IEC 60730 Class B compliance, including ADC diagnostic assist, clock frequency accuracy measurement (CAC), independent watchdog timer (IWDT), RAM test support via DOC, and analog input disconnect detection for both delta-sigma and 12-bit ADC subsystems.

What communication interfaces are available on R5F523E6KGFM#30, and does it support CAN FD?

The R5F523E6KGFM#30 includes one CAN 2.0B controller compliant with ISO 11898-1 (up to 1 Mbps), six SCIg channels, one RIIC (I²C/SMBus), and one RSPI interface. It does not support CAN FD; the RSCAN module is limited to classical CAN frames (standard and extended) and lacks FD-specific features like flexible data-rate or bit-rate switching.