Renesas R5F523E6NGFN#30

Overview

R5F523E6NGFN#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 31.25 kSPS max sampling rate, ±5-V input range, rail-to-rail programmable gain instrumentation amplifier (gain = 1–128), and on-chip excitation current sources (50–1000 µA). Operating at up to 32 MHz with 256 KB flash, 32 KB SRAM, and 8 KB data flash, it targets load cell, pressure transducer, and weigh scale systems requiring IEC 60730-compliant self-diagnostic capability.

For engineers reviewing the R5F523E6NGFN#30 datasheet, R5F523E6NGFN#30 pinout, R5F523E6NGFN#30 application, or R5F523E6NGFN#30 equivalent, key selection criteria include its 80-pin LFQFP package (PLQP0080KB-B), 31.25 kSPS delta-sigma ADC performance, ±5-V analog input support, integrated PGA and excitation sources, and CAN 2.0B interface compliance - all validated for operation from –40°C to +105°C.

Technical Context

The R5F523E6NGFN#30 implements the RXv2 CPU core with IEEE 754-compliant 32-bit FPU, 64 DMIPS @ 32 MHz, and memory protection unit (MPU) for functional safety. Its analog subsystem centers on the DSADB module synchronized to PCLKC (≤16 MHz), featuring fourth- and fifth-order sinc digital filters, simultaneous 50/60 Hz rejection at 10/54 SPS, and offset/gain error calibration.

Digital integration includes one ISO 11898-1 CAN channel (up to 1 Mbps), six SCIg interfaces (asynchronous/clock-synchronous/smart card), one RIICa I²C bus interface (400 kbps), and one RSPIc (16 Mbps), all coordinated via the Event Link Controller (ELC) to enable low-CPU-load sensor acquisition and communication without interrupt overhead.

Key Specifications

Pinout & Package

Package: 80-pin Low-Profile Quad Flat Package (LFQFP), PLQP0080KB-B, 12 × 12 mm body, 0.5 mm 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 R5F523E6JGFN#30, R5F523E6NGFN#30 removes LCD driver circuitry to reduce power and layout complexity; compared with R5F523E5NGFN#30, it doubles flash and RAM for advanced filtering, communication stacks, or field-upgradeable firmware - all while maintaining identical analog performance and pin compatibility.

Availability

R5F523E6NGFN#30 is available at Aetrix Electronics and suitable for industrial weigh scales, pressure transmitters, RTD measurement modules, and motor feedback systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F523E6NGFN#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 - including R5F523E6NGFN#30 - was designed specifically for high-accuracy sensor signal conditioning in industrial measurement systems, integrating precision analog front ends with functional safety features and real-time control capabilities.

FAQ

What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E6NGFN#30?

The R5F523E6NGFN#30 supports a maximum delta-sigma ADC sampling rate of 31.25 kSPS. This is confirmed in Table 1.3 of the R01DS0402EJ0100 datasheet for the N-suffix variant (R5F523E6NGFN#30), which specifies "31.25 kSPS" under "Sampling Rate (max.)" for the 24-bit Delta-Sigma A/D Converter. The rate is achieved with modulator clock fMOD = 4 MHz and appropriate digital filter configuration.

Does R5F523E6NGFN#30 include an integrated CAN interface?

Yes, R5F523E6NGFN#30 includes one fully compliant ISO 11898-1 CAN module (RSCAN) supporting standard and extended frames at up to 1 Mbps. This is explicitly stated in the "Up to eight communication functions" section of the datasheet and verified in Figure 1.2 (block diagram) and Table 1.2, where CAN module presence is marked for all 80-pin LFQFP variants including R5F523E6NGFN#30.

What is the operating temperature range for R5F523E6NGFN#30?

R5F523E6NGFN#30 is a G-version device rated for operation from –40°C to +105°C. This is indicated by the "G" in the part number (R5F523E6NGFN#30) and confirmed in Table 1.3, which lists "–40 to +105°C" under "Operating Temperature" for all G-version entries, including R5F523E6NGFN#30.

How many excitation current sources does R5F523E6NGFN#30 provide, and what are their specifications?

R5F523E6NGFN#30 provides two independent excitation current sources (IEXC0 and IEXC1), each programmable from 50 µA to 1000 µA in discrete steps. Their matching accuracy is ±0.2%, and drift matching is 5 ppm/°C - critical for 4-wire RTD and dual-element bridge measurements. These specifications are detailed in the "Analog front end (AFEA)" section and Table 1.1 (page 6) of the datasheet.

Is the R5F523E6NGFN#30 pin-compatible with other RX23E-B group members in the same package?

Yes, R5F523E6NGFN#30 is pin-compatible with all other RX23E-B devices in the 80-pin LFQFP (PLQP0080KB-B) package, including R5F523E6JGFN#30 and R5F523E5NGFN#30. Table 1.2 confirms identical peripheral availability (e.g., 6 MTU channels, 6 SCIg, CAN, DSAD) across all 80-pin variants, and Figure 1.1 verifies consistent pin count and pitch. Function mapping per pin is defined in Table 1.4 (Pin Functions).