Renesas R5F523E6MGFL#30

Overview

R5F523E6MGFL#30 from Renesas is a 32-bit RXv2 microcontroller optimized for high-precision analog measurement in industrial sensor nodes and metering systems. It integrates a 24-bit delta-sigma ADC with 31.25 kSPS max sampling rate, ±5-V input range, rail-to-rail programmable gain instrumentation amplifier (gain = 1–128), on-chip excitation current sources (50–1000 µA), and 256 KB flash/32 KB SRAM - all operating at up to 32 MHz.

For engineers reviewing the R5F523E6MGFL#30 datasheet, R5F523E6MGFL#30 pinout, R5F523E6MGFL#30 application, or R5F523E6MGFL#30 equivalent, this MCU delivers calibrated low-drift analog front-end performance for load cell, RTD, and thermocouple interfaces while supporting IEC60730 safety compliance via self-diagnostic A/D, clock accuracy monitoring, and RAM test assistance.

Technical Context

The R5F523E6MGFL#30 implements the RXv2 CPU core with IEEE 754-compliant 32-bit FPU, 5-stage Harvard pipeline, and memory protection unit - enabling deterministic real-time control of analog acquisition and signal processing tasks. Its ELC (Event Link Controller) allows autonomous peripheral coordination (e.g., ADC conversion triggered by MTU timer) without CPU intervention, reducing latency and power consumption during sleep modes.

This device belongs to the RX23E-B Group's G-version (–40°C to +105°C), uses PLQP0048KB-B package (48-pin LFQFP, 7 × 7 mm, 0.5 mm pitch), and features dual A/D subsystems: a 24-bit delta-sigma converter (DSADB) with sinc filtering and simultaneous 50/60 Hz rejection, plus an 8-channel 12-bit SAR ADC (S12ADE) with 1.4 µs conversion time - both supported by shared analog multiplexer, voltage reference (2.5 V, 8 ppm/°C), and bias generator.

Key Specifications

Pinout & Package

Package: PLQP0048KB-B - 48-pin Low-profile Quad Flat Package, 7 mm × 7 mm body, 0.5 mm lead pitch, exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F523E5MGFL#30, the R5F523E6MGFL#30 provides double flash/SRAM for robust firmware updates and safety logging, while the ADS131M04+MSP430 solution demands additional layout, calibration, and functional safety effort to match the integrated metrology and IEC60730 readiness of the RX23E-B.

Availability

R5F523E6MGFL#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart electricity meters, and RTD-based temperature transmitters requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F523E6MGFL#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 infrastructure markets.

The RX23E-B Group is designed specifically for high-accuracy analog measurement applications - integrating metrology-grade ADCs, PGAs, excitation sources, and safety features into a single MCU to replace multi-chip sensor signal chains.

FAQ

What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E6MGFL#30?

The R5F523E6MGFL#30 supports a maximum sampling rate of 31.25 kSPS for its 24-bit delta-sigma ADC (DSADB). This is confirmed in Table 1.3 of the datasheet for part numbers ending in "M" (e.g., R5F523E6MGFL#30), which denotes the 31.25 kSPS variant with ±5-V input range and no LCD driver. Higher rates (125 kSPS) apply only to "L"/"K" variants.

Does R5F523E6MGFL#30 include an integrated voltage reference, and what is its accuracy?

Yes, the R5F523E6MGFL#30 includes an on-chip voltage reference with 2.5 V nominal output, 8 ppm/°C temperature drift over –40°C to +85°C, and ±10 mA output current. This reference is used by both the 24-bit DSADB and 12-bit S12AD converters and is documented in Section 1.1 (Table 1.1) and the AFEA block description on page 6 of R01DS0402EJ0100.

Can R5F523E6MGFL#30 operate in extended temperature conditions up to +105°C?

Yes, R5F523E6MGFL#30 is a G-version device rated for –40°C to +105°C operation. The "G" in the part number (R5F523E6GFL#30) explicitly denotes the extended temperature grade, as defined in Figure 1.1 and Table 1.3 of the datasheet - making it suitable for deployment in motor drives, outdoor utility meters, and industrial enclosures.

How many excitation current sources does R5F523E6MGFL#30 provide, and what are their key specifications?

The R5F523E6MGFL#30 provides two independent excitation current sources (IEXC0 and IEXC1), each programmable from 50 µA to 1000 µA in six discrete steps. They feature ±0.2% current matching and 5 ppm/°C drift matching - critical for accurate 3-/4-wire RTD measurements - and are detailed in the AFEA section (page 6) and Table 1.2 (Analog Front End).

Is R5F523E6MGFL#30 pin-compatible with other RX23E-B Group members in the same package?

No, R5F523E6MGFL#30 is not universally pin-compatible across all RX23E-B variants in the 48-pin LFQFP package. While it shares the PLQP0048KB-B footprint with other "FL"-suffixed parts (e.g., R5F523E5MGFL#30), differences in peripheral enablement (e.g., LCD driver presence/absence, HVAIN pin allocation) affect functional pin mapping - verified via Table 1.2 and Pin Function tables (pages 12–15) of R01DS0402EJ0100.