Renesas R5F523E5NGFN#30

Overview

R5F523E5NGFN#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 A/D converter 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 128 KB flash, 16 KB SRAM, and 8 KB data flash, it targets load cell, pressure transducer, and weigh scale signal conditioning.

For engineers reviewing the R5F523E5NGFN#30 datasheet, R5F523E5NGFN#30 pinout, R5F523E5NGFN#30 application, or R5F523E5NGFN#30 equivalent, key selection criteria include its 80-pin LFQFP package, 31.25 kSPS delta-sigma ADC performance, ±5-V HVAIN input capability, integrated PGA and excitation sources, and IEC60730 safety support for Class B compliance.

Technical Context

The R5F523E5NGFN#30 implements the RXv2 CPU core with IEEE 754-compliant 32-bit FPU, 64 DMIPS @ 32 MHz, and memory protection unit (MPU) for secure embedded execution. 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 CAN 2.0B channel (1 Mbps), six SCIg interfaces (asynchronous/clock-sync/smart card), one RIIC (400 kbps), one RSPI (16 Mbps), four-channel DMAC, and ELC-driven event-triggered peripheral operation-enabling low-CPU-load sensor acquisition and deterministic real-time control without interrupt overhead.

Key Specifications

Pinout & Package

Package: PLQP0080KB-B - 80-pin LFQFP, 12 × 12 mm body, 0.5 mm pitch, exposed pad for thermal dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F523E5JDFN and R5F523E5NDFP, the R5F523E5NGFN#30 delivers optimal balance of high-precision analog capability (±5-V HVAIN, 31.25 kSPS DSAD), compact 80-pin LFQFP packaging, and industrial temperature rating - making it the most cost- and space-efficient choice for dedicated bridge sensor signal conditioning without display or RTC requirements.

Availability

R5F523E5NGFN#30 is available at Aetrix Electronics and suitable for industrial weigh scales, pressure transmitter signal conditioning, and strain gauge monitoring systems requiring stable component supply across extended production lifecycles.

Supply support for R5F523E5NGFN#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 R5F523E5NGFN#30 - was designed specifically for high-accuracy sensor signal acquisition in industrial automation, with integrated delta-sigma ADC, PGA, excitation sources, and functional safety features.

FAQ

What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E5NGFN#30?

The R5F523E5NGFN#30 supports a maximum delta-sigma ADC sampling rate of 31.25 kSPS. This rate is achieved with the modulator clock set to 4 MHz and appropriate digital filter configuration (e.g., fourth-order sinc). At lower data rates such as 10 SPS or 54 SPS, the device provides simultaneous 50 Hz and 60 Hz mains rejection - a critical feature for R5F523E5NGFN#30 deployments in electrically noisy industrial environments.

Does R5F523E5NGFN#30 support ±10-V analog inputs?

No, R5F523E5NGFN#30 does not support ±10-V analog inputs. Per the product matrix in Table 1.3 and Figure 1.1, the "N" suffix in R5F523E5NGFN#30 denotes a 31.25 kSPS delta-sigma ADC with up to ±5-V input range (HVAIN pins). The ±10-V capability is reserved for "L" and "K" variants (e.g., R5F523E5LDFP). Using R5F523E5NGFN#30 with ±10-V signals would exceed absolute maximum ratings and risk damage.

What package type and pin count does R5F523E5NGFN#30 use?

R5F523E5NGFN#30 uses the PLQP0080KB-B package: an 80-pin Low-Profile Quad Flat Package with 12 × 12 mm body size and 0.5 mm pin pitch. This package is RoHS-compliant, features an exposed thermal pad, and is compatible with standard reflow soldering profiles. The "FN" in the part number explicitly identifies this 80-pin LFQFP variant per Renesas' naming convention in Figure 1.1.

Is R5F523E5NGFN#30 qualified for IEC60730 Class B compliance?

Yes, R5F523E5NGFN#30 includes hardware-assisted IEC60730 Class B compliance features: self-diagnostic functions for the delta-sigma ADC, clock frequency accuracy measurement circuit (CAC), independent watchdog timer (IWDT), RAM test assistance via the data operation circuit (DOC), and analog input disconnect detection. These capabilities are documented in the "Useful functions for IEC60730 compliance" section of the R01DS0402EJ0100 datasheet and apply directly to R5F523E5NGFN#30.

What is the operating temperature range for R5F523E5NGFN#30?

R5F523E5NGFN#30 is a D-version device rated for an operating ambient temperature range of –40°C to +85°C. This specification is confirmed in Table 1.3 (List of Products) and Section 1.2 of the R01DS0402EJ0100 datasheet. The "D" in the part number explicitly denotes this industrial-grade temperature grade, distinguishing it from G-version parts (–40°C to +105°C) like R5F523E5NGFN (without #30 suffix).