Renesas R5F523E5AGNF#00

Overview

R5F523E5AGNF#00 from Renesas is a 32-bit RXv2 microcontroller optimized for high-precision analog measurement in industrial sensor systems, featuring dual 24-bit delta-sigma ADCs (DSAD0/DSAD1), rail-to-rail programmable gain instrumentation amplifiers (gain = 1–128), 2.5 V low-drift voltage reference (10 ppm/°C), four excitation current sources (50–1000 µA), and integrated CAN 2.0B interface. It operates at up to 32 MHz with 128 KB flash, 16 KB SRAM, and 8 KB data flash.

For engineers reviewing the R5F523E5AGNF#00 datasheet, R5F523E5AGNF#00 pinout, R5F523E5AGNF#00 application, or R5F523E5AGNF#00 equivalent, this device is selected for high-accuracy weigh scales, temperature transmitters, and resistance-based sensor interfaces requiring simultaneous multi-channel sigma-delta conversion, on-chip excitation, and IEC 60730-compliant self-test functions.

Technical Context

The R5F523E5AGNF#00 implements a CISC Harvard architecture RXv2 CPU core with IEEE 754-compliant 32-bit FPU, memory protection unit (MPU), and fast interrupt response. Its analog subsystem integrates two independent 24-bit delta-sigma ADC units with fourth-order sinc filters, programmable gain instrumentation amplifiers, and synchronized start capability - enabling simultaneous sampling of differential thermocouple or RTD inputs.

Timing and control are managed via an event link controller (ELC) that triggers ADC conversions, PWM outputs, and timer operations without CPU intervention, while the low-power timer (LPT) and software standby mode support energy-constrained field instruments. The device uses a 40-pin HWQFN package (PWQN0040KD-A, 6 × 6 mm, 0.5 mm pitch) rated for –40°C to +105°C operation.

Key Specifications

Pinout & Package

Package: 40-pin HWQFN (PWQN0040KD-A), 6 × 6 mm body, 0.5 mm pitch, exposed thermal pad, RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F523E5ADNF#20, the R5F523E5AGNF#00 adds guaranteed operation up to +105°C and qualifies for higher ambient thermal stress; compared with ADS131M04IPBSR, it integrates signal conditioning, excitation, computation, and CAN communication into a single chip - reducing BOM count, PCB area, and firmware development effort for sensor node designs.

Availability

R5F523E5AGNF#00 is available at Aetrix Electronics and suitable for industrial weigh scales, RTD temperature transmitters, thermocouple measurement modules, and bridge-based pressure sensor interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F523E5AGNF#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 infrastructure markets.

The RX23E-A Group, including R5F523E5AGNF#00, was designed specifically for high-accuracy sensor signal conditioning in industrial process control, weighing, and temperature measurement applications - integrating precision analog front-ends with robust MCU functionality.

FAQ

What is the maximum operating frequency and core architecture of the R5F523E5AGNF#00?

The R5F523E5AGNF#00 features a 32-bit RXv2 CPU core with a maximum operating frequency of 32 MHz, delivering 64 DMIPS performance. It implements a CISC Harvard architecture with a 5-stage pipeline, variable-length instructions, IEEE 754-compliant 32-bit floating-point unit, and memory protection unit - all confirmed in the R01DS0330EJ0130 datasheet Rev.1.30.

Does the R5F523E5AGNF#00 support simultaneous sampling across its two 24-bit delta-sigma ADC units?

Yes, the R5F523E5AGNF#00 supports inter-unit synchronized start of A/D conversion for both DSAD0 and DSAD1 units via software trigger or ELC event. This enables phase-aligned sampling critical for multi-sensor correlation in applications like 3-wire RTD measurement or differential bridge analysis, as specified in Section 1.1 of R01DS0330EJ0130.

What are the excitation current source specifications for the R5F523E5AGNF#00?

The R5F523E5AGNF#00 provides four excitation current sources (IEXC0–IEXC3) with programmable output from 50 µA to 1000 µA in six discrete steps. Current matching is ±0.2%, and drift matching is 5 ppm/°C - enabling high-accuracy 4-wire RTD sensing without external current-setting components, per Table 1.1 and Section 1.4 of R01DS0330EJ0130.

Is the R5F523E5AGNF#00 qualified for IEC 60730 functional safety compliance?

The R5F523E5AGNF#00 includes hardware-assisted self-diagnostic features required for Class B IEC 60730 compliance, including A/D converter disconnect detection, clock frequency accuracy measurement (CAC), independent watchdog timer (IWDT), RAM test assistance (DOC), and voltage reference fault detection - all documented in the "Useful functions for IEC60730 compliance" section of R01DS0330EJ0130.

What package type and thermal grade does the R5F523E5AGNF#00 use?

The R5F523E5AGNF#00 uses a 40-pin HWQFN package (PWQN0040KD-A, 6 × 6 mm, 0.5 mm pitch) and is rated for operation from –40°C to +105°C (G-grade), as confirmed in Table 1.3 and Figure 1.1 of R01DS0330EJ0130. This makes it suitable for demanding industrial environments where extended temperature stability is required.