Renesas R5F523E5MDFM#30

Overview

R5F523E5MDFM#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), 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 +85°C and targets load cell, pressure sensor, and weigh scale front-end signal conditioning.

For engineers reviewing the R5F523E5MDFM#30 datasheet, R5F523E5MDFM#30 pinout, R5F523E5MDFM#30 application, or R5F523E5MDFM#30 equivalent, key selection criteria include its 31.25 kSPS delta-sigma ADC performance, 5-V analog input capability, integrated PGA and excitation sources, CAN interface compliance with ISO11898-1, and LFQFP-64 package compatibility with industrial PCB layouts.

Technical Context

The R5F523E5MDFM#30 implements the RXv2 CPU core with IEEE 754-compliant 32-bit FPU, memory protection unit (MPU), and event link controller (ELC) enabling interrupt-free peripheral coordination. Its analog subsystem centers on the DSADB module, synchronized to PCLKC (≤16 MHz), with fourth- and fifth-order sinc digital filters and simultaneous 50/60 Hz rejection at 10/54 SPS.

It supports three low-power modes-sleep, deep sleep, and software standby-with LPT operating during standby using sub-clock or IWDT oscillator. Clock generation includes main (1–20 MHz), sub (32.768 kHz), and PLL (4–8 MHz input) sources, plus CAC for frequency accuracy monitoring.

Key Specifications

Pinout & Package

Package: PLQP0064KB-C - 64-pin Low-Profile Quad Flat Package, 10 × 10 mm body, 0.5 mm lead 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 applications.

Compared with R5F523E5KDFM#30, R5F523E5MDFM#30 trades ±10-V input and 125 kSPS for cost efficiency in 5-V sensor systems; versus ADS125H02IRHBT, it delivers full embedded control, CAN connectivity, and functional safety features in a single chip-reducing board area and validation effort.

Availability

R5F523E5MDFM#30 is available at Aetrix Electronics and suitable for industrial weigh scales, pressure transmitters, RTD temperature monitors, and strain gauge data loggers requiring stable component supply and long-term production continuity.

Supply support for R5F523E5MDFM#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 markets.

The RX23E-B Group-including R5F523E5MDFM#30-is designed specifically for high-accuracy sensor signal conditioning in industrial automation, featuring integrated delta-sigma ADCs, PGAs, excitation sources, and functional safety support.

FAQ

What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E5MDFM#30?

The R5F523E5MDFM#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 M-suffix variant. The device achieves this rate with modulator clock fMOD = 4 MHz and supports lower rates down to 3.8 SPS for enhanced noise rejection. R5F523E5MDFM#30 does not support the 125 kSPS mode found in L/K-suffix variants.

Does R5F523E5MDFM#30 include an LCD controller/driver?

No, R5F523E5MDFM#30 does not include an LCD controller/driver. Per Figure 1.1 and Table 1.3 in the R01DS0402EJ0100 datasheet, the "M" suffix explicitly denotes "LCD driver not included". This distinguishes it from L/N-suffix variants (e.g., R5F523E5LDFP) which integrate LCD functionality. R5F523E5MDFM#30 is optimized for compact sensor nodes where display interface is unnecessary.

What analog input voltage range is supported by R5F523E5MDFM#30?

R5F523E5MDFM#30 supports a ±5-V analog input range on its HVAIN pins, as specified in Table 1.3 for the "M" variant. This is enabled by internal level-shifting circuitry and matches the 5-V maximum range requirement for industrial bridge sensors. It does not support the ±10-V range offered by K/L-suffix parts like R5F523E5KDFM#30.

Which communication interfaces are available on R5F523E5MDFM#30?

R5F523E5MDFM#30 includes CAN (1 channel, ISO11898-1 compliant, up to 1 Mbps), six SCI channels (SCI0–SCI5), one I2C bus interface (RIICa), and one serial peripheral interface (RSPIc). It omits SCI12 (LIN-capable) and LCD-related peripherals. All interfaces are fully functional in the 64-pin LFQFP package per Table 1.2.

What is the operating temperature range for R5F523E5MDFM#30?

R5F523E5MDFM#30 is rated for an operating ambient temperature range of –40°C to +85°C, indicated by the "D" suffix in its part number per Figure 1.1. This is the standard industrial grade specification and is validated across all electrical parameters in the R01DS0402EJ0100 datasheet. It is not qualified for the extended –40°C to +105°C (G-version) range.