Renesas R5F523E5JGFN#30

Overview

R5F523E5JGFN#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 125 kSPS max sampling rate, ±5-V input range, rail-to-rail programmable gain instrumentation amplifier (gain = 1–128), on-chip excitation current sources (50–1000 µA), and 128 KB flash/16 KB SRAM. It operates at up to 32 MHz across –40°C to +105°C.

For engineers reviewing the R5F523E5JGFN#30 datasheet, R5F523E5JGFN#30 pinout, R5F523E5JGFN#30 application, or R5F523E5JGFN#30 equivalent, key selection criteria include its integrated 24-bit DSADC with simultaneous 50/60 Hz rejection, LCD controller support, CAN interface compliance with ISO11898-1, and IEC60730 safety assist functions for Class B certification.

Technical Context

The R5F523E5JGFN#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 - a 24-bit delta-sigma ADC with fourth- and fifth-order sinc filters, ±5-V HVAIN inputs, and configurable PGA gain - synchronized via ELC-triggered conversion start without CPU intervention.

Clock management includes independent PCLK domains: PCLKC (up to 16 MHz) for DSADB operation, PCLKD (up to 32 MHz) for S12AD, and ICLK (up to 32 MHz) for CPU execution. The device supports three low-power modes and features an LPT running off the sub-clock during software standby, enabling ultra-low-power wake-up timing for sensor polling.

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 R5F523E5JGFN#30, the D-version alternative offers identical functionality at lower temperature grade and cost, while the R5F523E6JGFN#30 provides double flash/SRAM capacity for future-proofing firmware growth - both retain full pin and code compatibility.

Availability

R5F523E5JGFN#30 is available at Aetrix Electronics and suitable for industrial power metering, motor drive current sensing, smart grid RTUs, and precision weigh scale controllers requiring stable component supply across extended temperature ranges.

Supply support for R5F523E5JGFN#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 management ICs for industrial, automotive, and IoT applications.

The RX23E-B Group targets high-precision measurement systems, integrating metrology-grade analog front ends with robust MCU cores to replace multi-chip sensor signal chains in industrial automation and energy infrastructure.

FAQ

What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E5JGFN#30?

The R5F523E5JGFN#30 supports a maximum sampling rate of 125 kSPS for its 24-bit delta-sigma ADC (DSADB). This rate is achievable with modulator clock fMOD = 4 MHz and appropriate sinc filter configuration. At lower data rates (e.g., 3.8 SPS), effective resolution reaches 24 bits with simultaneous 50/60 Hz rejection enabled.

Does R5F523E5JGFN#30 include an integrated LCD controller?

Yes, R5F523E5JGFN#30 includes a built-in LCD controller/driver supporting 40 × 4 segment-common configurations. This feature is indicated by the "J" suffix in the part number per Renesas' naming convention and eliminates the need for an external LCD driver IC in panel-meter and HMI applications.

What is the operating temperature range for R5F523E5JGFN#30?

R5F523E5JGFN#30 is a G-version device rated for operation from –40°C to +105°C. This extended temperature range qualifies it for deployment in demanding industrial environments such as motor control cabinets, outdoor smart grid terminals, and factory-floor instrumentation.

Can R5F523E5JGFN#30 operate from a single 3.3-V supply?

Yes, R5F523E5JGFN#30 operates from a single 1.8-V to 5.5-V supply. At VCC = 3.3 V, it supports maximum 32-MHz operation. Note that AVCC0 must be supplied at 4.5–5.5 V for full 12-bit ADC accuracy, but the DSADC and core logic function correctly at 3.3 V.

How many excitation current sources does R5F523E5JGFN#30 provide?

R5F523E5JGFN#30 integrates two independent excitation current sources (IEXC0 and IEXC1), each programmable from 50 µA to 1000 µA in six discrete steps. Their current matching is ±0.2% and drift matching is 5 ppm/°C - critical for accurate 3- and 4-wire RTD measurements.