Renesas R5F523E5SDFL#30

Overview

R5F523E5SDFL#30 from Renesas is a 32-bit RXv2 core MCU optimized for high-precision industrial sensor measurement, featuring one 24-bit delta-sigma ADC unit (6-channel differential), a 12-bit SAR ADC (6 channels), rail-to-rail programmable gain instrumentation amplifier (gain = 1–128), 2.5 V low-drift voltage reference (10 ppm/°C), and excitation current sources (50–1000 µA). It operates at up to 32 MHz with 128 KB flash, 16 KB SRAM, and supports IEC60730 safety compliance in –40°C to +85°C ambient.

For engineers reviewing the R5F523E5SDFL#30 datasheet, R5F523E5SDFL#30 pinout, R5F523E5SDFL#30 application, or R5F523E5SDFL#30 equivalent, this device delivers calibrated analog front-end performance for thermocouple and RTD sensing, integrated CAN 2.0B communication (1 Mbps), and event-driven low-power operation via ELC-critical for battery-backed or energy-constrained industrial nodes.

Technical Context

The R5F523E5SDFL#30 implements a CISC Harvard architecture with 5-stage pipeline, supporting 64 DMIPS at 32 MHz and IEEE 754-compliant single-precision FPU. Its analog subsystem integrates two independent DSAD units (only one active in S-series), each with fourth-order sinc filter, simultaneous 50/60 Hz rejection, and offset/gain calibration-enabling stable 23-bit effective resolution at 7.6 SPS.

Digital peripherals include a CAN module compliant with ISO11898-1, three SCIg channels (asynchronous/clock-sync/Smart Card), one RIICa interface (400 kbps), and RSPIb (16 Mbps), all coordinated via Event Link Controller (ELC) to eliminate CPU wakeups during synchronized A/D conversion triggers or timer events.

Key Specifications

Pinout & Package

48-pin LFQFP (PLQP0048KB-B), 7 × 7 mm body, 0.5 mm pitch, exposed pad (thermal pad not electrically connected). Pin 1 marked by dot; top-side view with pin 1 at top-left corner.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F523E5ADFL#30, R5F523E5SDFL#30 reduces analog subsystem cost and power by disabling one DSAD unit while retaining identical MCU performance, PGA, reference, and excitation capabilities-making it optimal for single-sensor industrial transmitters. Against ADS131M04IPBSR, it eliminates external host dependency and enables closed-loop control within a single chip.

Availability

R5F523E5SDFL#30 is available at Aetrix Electronics and suitable for industrial temperature transmitters, RTD-based process controllers, thermocouple signal conditioners, and multi-sensor industrial gateways requiring stable component supply across extended product lifecycles.

Supply support for R5F523E5SDFL#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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for industrial, automotive, and IoT markets.

The RX23E-A Group, including R5F523E5SDFL#30, was designed specifically for high-accuracy sensor signal conditioning in industrial automation-integrating metrology-grade analog peripherals with safety-certifiable MCU functionality.

FAQ

What is the maximum operating frequency and CPU architecture of the R5F523E5SDFL#30?

The R5F523E5SDFL#30 features a 32-bit RXv2 CPU core with a maximum operating frequency of 32 MHz, delivering 64 DMIPS performance. It uses a CISC Harvard architecture with 5-stage pipeline, variable-length instructions, and on-chip FPU compliant with IEEE 754 single-precision standard. This architecture enables deterministic real-time execution for sensor processing and control loops in the R5F523E5SDFL#30.

How many delta-sigma ADC units does the R5F523E5SDFL#30 support, and what is its effective resolution?

The R5F523E5SDFL#30 supports one 24-bit delta-sigma ADC (DSAD) unit with six differential input channels. At 7.6 SPS output data rate and gain = 1, it achieves up to 23-bit effective resolution. Its fourth-order sinc filter and simultaneous 50/60 Hz rejection capability ensure high-fidelity measurements in electrically noisy industrial environments for the R5F523E5SDFL#30.

Does the R5F523E5SDFL#30 include integrated excitation current sources, and what are their specifications?

Yes, the R5F523E5SDFL#30 integrates four programmable excitation current sources (IEXC0–IEXC3) with output ranges from 50 µA to 1000 µA. These sources exhibit ±0.2% current matching and 5 ppm/°C drift matching-critical for accurate ratiometric RTD measurements. They are fully configurable and directly usable with the DSAD reference inputs in the R5F523E5SDFL#30.

What communication interfaces are available on the R5F523E5SDFL#30, and which support industrial protocols?

The R5F523E5SDFL#30 includes one CAN 2.0B module (ISO11898-1 compliant, up to 1 Mbps), three SCIg channels (supporting asynchronous, clock-sync, Smart Card, and LIN via SCIh), one I2C bus interface (400 kbps, SMBus compatible), and one RSPIb (16 Mbps). The CAN interface is certified for industrial fieldbus use, and SCIh supports LIN protocol framing-both essential for interoperability in the R5F523E5SDFL#30.

What is the operating temperature range and supply voltage specification for the R5F523E5SDFL#30?

The R5F523E5SDFL#30 is rated for industrial operation from –40°C to +85°C (D-grade) and accepts a single supply voltage from 1.8 V to 5.5 V. Its analog section (AVCC0/AVSS0) operates from 2.7 V to 5.5 V, enabling direct interfacing with 3.3 V or 5 V sensor signal chains. This wide voltage range simplifies power design in the R5F523E5SDFL#30 for diverse industrial power architectures.