Renesas R5F523E5NGFP#30

Overview

R5F523E5NGFP#30 from Renesas is a 32-bit RXv2 core MCU optimized for high-precision analog measurement in industrial sensing applications, featuring a 32-MHz max operating frequency, 128-KB on-chip flash, 16-KB SRAM, 8-KB data flash, and a 24-bit delta-sigma A/D converter with 31.25 kSPS sampling rate and ±5-V input range. It integrates a rail-to-rail programmable gain instrumentation amplifier (PGA), excitation current sources, voltage reference, and CAN interface - deployed in smart transmitters and load-cell signal conditioning systems.

For engineers reviewing the R5F523E5NGFP#30 datasheet, R5F523E5NGFP#30 pinout, R5F523E5NGFP#30 application, or R5F523E5NGFP#30 equivalent, this device supports IEC60730-compliant diagnostics, low-power software standby with LPT operation, ELC-triggered analog conversions, and dual A/D subsystems (24-bit DSAD + 12-bit S12AD) for simultaneous high-resolution and fast-response measurements.

Technical Context

The R5F523E5NGFP#30 implements the RXv2 CPU core with IEEE 754-compliant 32-bit FPU, 5-stage CISC Harvard pipeline, and memory protection unit (MPU), enabling deterministic real-time control in safety-aware systems. Its clock system includes PLL, main/sub oscillators, and CAC for accuracy monitoring - with independent ICLK (32 MHz), PCLKA–PCLKD domains synchronizing MTU2a, DSAD, S12AD, and peripheral modules.

Analog subsystem architecture centers on the DSADB module: a 24-bit delta-sigma ADC with fourth/fifth-order sinc filters, selectable PGA gains (×1 to ×128), ±10-V HVAIN support (configured for ±5-V range in this variant), and integrated disconnect detection. Paired with two 1000-µA excitation current sources, bias voltage generator, and 2.5-V low-drift reference (8 ppm/°C), it targets bridge sensor front ends requiring <100 nV/√Hz noise and <5 ppm/°C gain drift.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin LFQFP, 14 mm × 14 mm, 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 R5F523E5NGFP#30, R5F523E5LGFP#30 extends analog input range and adds LCD support, while R5F523E6NGFP#30 doubles memory resources - both maintain identical timing, power, and peripheral behavior, enabling scalable design reuse across product tiers.

Availability

R5F523E5NGFP#30 is available at Aetrix Electronics and suitable for industrial smart transmitters, load-cell signal conditioners, and motor control sensor nodes requiring stable component supply, long-term lifecycle support, and guaranteed extended-temperature operation.

Supply support for R5F523E5NGFP#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 is designed specifically for high-accuracy sensor signal conditioning - integrating precision analog front ends, IEC60730 diagnostics, and real-time processing in a single chip for industrial measurement systems.

FAQ

What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E5NGFP#30?

The R5F523E5NGFP#30 supports a maximum 24-bit delta-sigma ADC sampling rate of 31.25 kSPS, as confirmed in Table 1.3 of the R01DS0402EJ0100 datasheet. This rate applies to the N-variant (NDFP/NGBS/NGFP suffix), which configures the DSAD module for ±5-V input range and optimized speed versus resolution trade-off. The device does not support the 125 kSPS mode found in L/K-variants.

Does R5F523E5NGFP#30 include an integrated voltage reference, and what are its specifications?

Yes, the R5F523E5NGFP#30 includes an on-chip voltage reference with 2.5 V nominal output, ±1% initial accuracy, 8 ppm/°C temperature drift over –40°C to +85°C, and ±10 mA output current capability. This reference is used by the 24-bit delta-sigma ADC and can also be routed to external circuitry, eliminating the need for discrete reference ICs in precision analog designs.

What package type and pin count does R5F523E5NGFP#30 use?

R5F523E5NGFP#30 uses the PLQP0100KB-B package: a 100-pin Low-Profile Quad Flat Package with 14 mm × 14 mm body size, 0.5 mm pin pitch, and exposed thermal pad. This matches the FP suffix decoding in Figure 1.1 of the datasheet and is compatible with standard LFQFP reflow profiles and PCB layout practices.

Can R5F523E5NGFP#30 operate in extended temperature ranges, and what is its qualification grade?

Yes, R5F523E5NGFP#30 is a G-version device qualified for operation from –40°C to +105°C ambient temperature, as specified in Table 1.3 and Figure 1.1 of the R01DS0402EJ0100 datasheet. This extended temperature rating makes it suitable for deployment in harsh industrial environments such as motor control enclosures, outdoor metering, and factory automation systems.

How many excitation current sources does R5F523E5NGFP#30 provide, and what are their key electrical characteristics?

R5F523E5NGFP#30 provides two fully programmable excitation current sources (IEXC0 and IEXC1), each configurable from 50 µA to 1000 µA in six discrete steps. They feature ±0.2% current matching and 5 ppm/°C drift matching - critical for dual-bridge sensor configurations where ratio-metric accuracy must be preserved across temperature.