Renesas R5F523E5JGFN#10

Overview

R5F523E5JGFN#10 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, rail-to-rail programmable gain instrumentation amplifier (gain = 1–128), ±10-V input capability on HVAIN pins, and on-chip excitation current sources (50–1000 µA). The device operates at up to 32 MHz, includes 128 KB flash, 16 KB SRAM, and supports CAN, SCI, I²C, and RSPI interfaces.

For engineers reviewing the R5F523E5JGFN#10 datasheet, R5F523E5JGFN#10 pinout, R5F523E5JGFN#10 application, or R5F523E5JGFN#10 equivalent, key selection criteria include its 8-channel differential 24-bit DSAD with simultaneous 50/60 Hz rejection, integrated ±10-V analog front end, LCD controller support, and G-grade (–40°C to +105°C) operation in the 80-pin LFQFP package.

Technical Context

The R5F523E5JGFN#10 implements the RXv2 CPU core with IEEE 754-compliant 32-bit FPU, 64 DMIPS @ 32 MHz, and memory protection unit (MPU). Its analog subsystem centers on the DSADB module synchronized to PCLKC (≤16 MHz), featuring fourth- and fifth-order sinc digital filters, offset/gain error calibration, and disconnect detection assist for sensor inputs.

Digital integration includes ELC-driven event-triggered operation for low-power wake-up, four-channel DMAC with software/external/interrupt activation, and RSCAN CAN module compliant to ISO 11898-1 at up to 1 Mbps. Clock management supports independent ICLK/PCLKA/PCLKC/PCLKD domains, with CAC for real-time frequency accuracy monitoring.

Key Specifications

Pinout & Package

Package: PLQP0080KB-B - 80-pin Low-Profile Quad Flat Package, 12 mm × 12 mm body, 0.5 mm lead 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 R5F523E5LGFN#10, the R5F523E5JGFN#10 trades ±10-V input support for lower BOM cost while retaining identical timing, peripherals, and LCD capability; versus R5F523E6JGFN#10, it delivers identical analog performance at reduced memory cost for fixed-function sensor nodes.

Availability

R5F523E5JGFN#10 is available at Aetrix Electronics and suitable for industrial weigh scale design, process temperature control, power quality monitoring, and smart circuit breaker development requiring stable component supply across extended temperature ranges.

Supply support for R5F523E5JGFN#10 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 markets.

The RX23E-B Group targets high-accuracy sensor signal conditioning and closed-loop control, integrating precision analog front ends with robust real-time processing for industrial measurement and automation.

FAQ

What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E5JGFN#10?

The R5F523E5JGFN#10 supports a maximum 24-bit delta-sigma ADC sampling rate of 125 kSPS. This rate is achievable with appropriate modulator clock configuration (fMOD = 4 MHz) and digital filter selection. At lower data rates such as 3.8 SPS, the device achieves 24-bit effective resolution with simultaneous 50/60 Hz rejection - critical for industrial weighing and power metering applications where mains interference must be suppressed.

Does R5F523E5JGFN#10 support ±10-V analog inputs?

No, the R5F523E5JGFN#10 supports up to ±5-V analog input range on its HVAIN pins. The "J" suffix in the part number denotes inclusion of the LCD controller and 5-V analog input capability. For ±10-V support, the "L" or "K" variants (e.g., R5F523E5LGFN#10) are required. This distinction is defined in Renesas' part numbering scheme and confirmed in Table 1.3 of the R01DS0402EJ0100 datasheet.

What communication interfaces are available on R5F523E5JGFN#10?

The R5F523E5JGFN#10 integrates CAN (1 channel, ISO 11898-1 compliant), SCI (6 channels including LIN-capable SCIh), I²C (1 channel, SMBus-compatible), and RSPI (1 channel, up to 16 Mbps). It does not include Ethernet, USB, or Bluetooth. All interfaces operate independently with configurable clock domains (PCLKB/PCLKC), and ELC can trigger transfers without CPU involvement - enabling deterministic, low-latency sensor-to-bus data flow in R5F523E5JGFN#10-based systems.

Is the LCD controller in R5F523E5JGFN#10 functional in the 80-pin LFQFP package?

Yes, the R5F523E5JGFN#10 includes a fully functional LCD controller supporting up to 36 SEG × 8 COM segments, and this capability is retained in the PLQP0080KB-B (80-pin LFQFP) package. Pin assignments for SEG/COM outputs are defined in Table 1.4 of the R01DS0402EJ0100 datasheet. The "J" in the part number explicitly indicates LCD controller inclusion, and Table 1.2 confirms LCD support for all 80-pin variants of the RX23E-B Group.

What is the operating temperature grade of R5F523E5JGFN#10?

The R5F523E5JGFN#10 is a G-grade device rated for operation from –40°C to +105°C. This is indicated by the "G" in the seventh character of the part number and confirmed in Table 1.3 of the R01DS0402EJ0100 datasheet. The extended temperature range qualifies the R5F523E5JGFN#10 for under-hood automotive modules, factory-floor PLC I/O cards, and outdoor industrial enclosures where ambient thermal stress exceeds commercial-grade limits.