Renesas R5F523E6BGNF#00

Overview

R5F523E6BGNF#00 from Renesas is a 32-bit RXv2 microcontroller optimized for high-precision industrial sensing and measurement, featuring a 32-MHz CPU core, 256-KB on-chip flash, 32-KB SRAM, 8-KB data flash, integrated 24-bit delta-sigma ADC (125 kSPS, ±5-V input range), 16-bit DAC, dual excitation current sources (50–1000 µA), and CAN 2.0B interface - deployed in load cell signal conditioning, weigh scale controllers, and precision analog front-end modules.

For engineers reviewing the R5F523E6BGNF#00 datasheet, R5F523E6BGNF#00 pinout, R5F523E6BGNF#00 application, or R5F523E6BGNF#00 equivalent, this MCU delivers deterministic real-time control with IEEE 754-compliant FPU, memory protection unit (MPU), IEC 60730 safety assist functions, and low-power operation across –40°C to +105°C - critical for certified industrial instrumentation and smart sensor nodes.

Technical Context

The R5F523E6BGNF#00 implements the RXv2 CISC Harvard architecture with 5-stage pipeline, supporting 64 DMIPS at 32 MHz and single-cycle instruction execution. It integrates dedicated analog subsystems: DSAD (24-bit delta-sigma ADC) synchronized to PCLKC (≤16 MHz), S12AD (12-bit ADC) clocked by ADCLK (≤32 MHz), and R16DA (16-bit DAC) with software/ELC-triggered conversion.

Its timing architecture includes independent clock domains: ICLK (CPU/system, ≤32 MHz), PCLKA (MTU2a), PCLKC (DSAD), PCLKD (S12AD), and FCLK (FlashIF, ≤32 MHz). The ELC enables interrupt-free inter-module triggering - e.g., MTU timer events initiating DSAD conversions - while the IWDT uses a dedicated 15-kHz on-chip oscillator for fail-safe monitoring.

Key Specifications

Pinout & Package

PWQN0040KD-A 40-pin HWQFN package (6 × 6 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad. Pinout validated per Renesas R01DS0402EJ0100 datasheet Section 1.4 (Pages 12–29).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F523E5BGNF#00, R5F523E6BGNF#00 provides double flash/SRAM for advanced calibration tables and real-time FFT-based diagnostics; versus R5F523E6KGNF#00, it trades ±10-V input capability for lower input-referred noise in ±5-V bridge configurations - optimizing for strain gauge precision over voltage range.

Availability

R5F523E6BGNF#00 is available at Aetrix Electronics and suitable for industrial weigh scale controllers, smart pressure transmitters, energy meter analog front ends, and motor control current sensing modules requiring stable component supply across extended temperature ranges.

Supply support for R5F523E6BGNF#00 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 markets - with over 40 years of embedded systems expertise.

The RX23E-B Group targets high-accuracy industrial sensing applications, integrating metrology-grade analog peripherals (24-bit DSAD, excitation sources, precision references) with real-time MCU capabilities to replace discrete analog signal chains.

FAQ

What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E6BGNF#00?

The R5F523E6BGNF#00 supports a maximum DSAD sampling rate of 125 kSPS at reduced effective resolution, with configurable digital filters enabling trade-offs between speed and noise - e.g., 3.8 SPS yields 24-bit effective resolution and 11 nVRMS noise at gain=128. This flexibility allows the R5F523E6BGNF#00 to serve both high-speed monitoring and ultra-precise static measurement roles within a single platform.

Does R5F523E6BGNF#00 include an integrated voltage reference for the ADC?

Yes, the R5F523E6BGNF#00 integrates a 2.5-V voltage reference with 8 ppm/°C drift over –40°C to +85°C and ±10 mA output capability. This reference can be used directly by the 24-bit DSAD and 16-bit R16DA, eliminating the need for external precision references in most industrial sensing designs - a key differentiator of the R5F523E6BGNF#00 within the RX23E-B family.

What analog input voltage range does R5F523E6BGNF#00 support on its HVAIN pins?

The R5F523E6BGNF#00 supports a ±5-V differential input range on its HVAIN pins, as confirmed by Table 1.3 (List of Products) in the R01DS0402EJ0100 datasheet. This is specific to the "B" variant (R5F523E6BGNF#00); other variants like "K" and "L" support ±10-V range. The ±5-V range optimizes noise performance for standard bridge sensors while maintaining compatibility with common industrial signal levels.

Can R5F523E6BGNF#00 operate in the extended temperature range of –40°C to +105°C?

Yes, the R5F523E6BGNF#00 is the G-version part (denoted by "G" in the package suffix), explicitly rated for operation from –40°C to +105°C per Table 1.3 and Figure 1.1 of the R01DS0402EJ0100 datasheet. This makes the R5F523E6BGNF#00 suitable for under-hood automotive sensors, industrial motor drives, and outdoor utility metering where ambient temperatures exceed +85°C.

What communication interfaces are available on R5F523E6BGNF#00?

The R5F523E6BGNF#00 includes CAN 2.0B (1 Mbps), six SCI channels (asynchronous/clock-synchronous/smart card), one I2C bus interface (400 kbps), one RSPI channel (16 Mbps), and supports LIN via SCIh - all documented in Table 1.2 and Section 1. Overview of R01DS0402EJ0100. These interfaces enable the R5F523E6BGNF#00 to serve as a central node in distributed industrial networks with mixed protocol requirements.