Renesas R5F523E5JDFN#10

Overview

R5F523E5JDFN#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 A/D converter 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 +85°C and supports CAN, SCI, I²C, and RSPI interfaces.

For engineers reviewing the R5F523E5JDFN#10 datasheet, R5F523E5JDFN#10 pinout, R5F523E5JDFN#10 application, or R5F523E5JDFN#10 equivalent, key selection criteria include its integrated 24-bit DSAD with simultaneous 50/60 Hz rejection, ±5-V HVAIN capability, LCD driver support, and IEC60730-compliant self-diagnostic features for Class B safety-critical systems.

Technical Context

The R5F523E5JDFN#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 peripherals include a 1-channel CAN module compliant with ISO11898-1 (up to 1 Mbps), 6-channel SCIg with bit-rate modulation, and ELC-driven event-triggered A/D conversion-enabling low-CPU-load sensor acquisition during sleep modes like software standby with active LPT.

Key Specifications

Pinout & Package

Package: 80-pin Low-Profile Quad Flat Package (LFQFP), PLQP0080KB-B, 12 × 12 mm body, 0.5 mm pitch, exposed pad (thermal enhancement), RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F523E5JDFN#10, R5F523E5NDFN#10 reduces sampling bandwidth and removes LCD capability for lower BOM cost, while R5F523E5JDFP#10 expands I/O and timing resources in a larger package-making the JDFN variant optimal for space-constrained, display-integrated 80-pin industrial sensors.

Availability

R5F523E5JDFN#10 is available at Aetrix Electronics and suitable for industrial weighing systems, energy metering devices, process transmitters, and portable medical sensors requiring stable component supply and long-term manufacturability.

Supply support for R5F523E5JDFN#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 measurement applications, integrating precision analog front ends with robust MCU cores to simplify certified industrial device development.

FAQ

What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E5JDFN#10?

The R5F523E5JDFN#10 supports a maximum sampling rate of 125 kSPS for its 24-bit delta-sigma A/D converter (DSADB) when operating with a 4-MHz modulator clock. This rate is achievable with specific sinc filter configurations and applies to the ±5-V input range enabled by the HVAIN pins. Lower rates (e.g., 10 or 54 SPS) are used for simultaneous 50/60 Hz rejection.

Does R5F523E5JDFN#10 include an LCD controller, and what display formats does it support?

Yes, R5F523E5JDFN#10 includes an integrated LCD controller/driver (LCDC) supporting two configurations: 36-segment × 8-common or 40-segment × 4-common. This capability is confirmed by the "J" suffix in the part number per Renesas' naming convention (Figure 1.1), and enables direct drive of segment-based displays in metering and HMI applications without external driver ICs.

What analog input voltage range does R5F523E5JDFN#10 support, and how is it implemented?

R5F523E5JDFN#10 supports a ±5-V analog input range via dedicated HVAIN pins (HVAIN0–HVAIN3), as specified in Table 1.3 and confirmed by the "J" variant designation. This high-voltage capability is implemented with internal protection and scaling circuitry, allowing direct connection to bridge sensors and eliminating external level-shifting components typically needed for ±10-V or ±5-V industrial signals.

Is R5F523E5JDFN#10 qualified for IEC60730 Class B functional safety compliance?

Yes, R5F523E5JDFN#10 includes hardware-assisted features for IEC60730 Class B compliance, including self-diagnostic functions for the A/D converter, 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 are explicitly listed under "Useful functions for IEC60730 compliance" in the datasheet.

What is the operating temperature range and package type of R5F523E5JDFN#10?

R5F523E5JDFN#10 is rated for industrial operation from –40°C to +85°C (D-version) and uses an 80-pin LFQFP package (PLQP0080KB-B) with 12 × 12 mm body size and 0.5 mm pin pitch. The "D" in the part number denotes the temperature grade, and "FN" specifies the 80-pin LFQFP configuration per Renesas' packaging code system (Figure 1.1).