Renesas R5F523E5MDFL#10

Overview

R5F523E5MDFL#10 from Renesas is a 32-bit RXv2 microcontroller optimized for high-precision analog sensing in industrial measurement systems, featuring a 24-bit delta-sigma A/D converter with 31.25 kSPS max sampling rate, ±5-V input range, 128-KB flash, 16-KB SRAM, and integrated programmable gain instrumentation amplifier (PGA) with rail-to-rail operation. It supports CAN 2.0B, six SCI channels, I²C, RSPI, and operates across –40°C to +85°C.

For engineers reviewing the R5F523E5MDFL#10 datasheet, R5F523E5MDFL#10 pinout, R5F523E5MDFL#10 application, or R5F523E5MDFL#10 equivalent, key selection criteria include its 31.25 kSPS delta-sigma ADC performance at ±5 V full-scale, PGA gain range of ×1–×128, on-chip excitation current sources (50–1000 µA), and support for IEC60730-compliant self-diagnostic functions in safety-critical sensor nodes.

Technical Context

The R5F523E5MDFL#10 implements the RXv2 CPU core running at up to 32 MHz (64 DMIPS), with IEEE 754-compliant single-precision FPU and memory protection unit (MPU). Its analog subsystem centers on the DSADB module - a 24-bit delta-sigma ADC with fourth- and fifth-order sinc digital filters, simultaneous 50/60 Hz rejection at 10/54 SPS, and ±10-V-capable HVAIN pins (though this variant is rated for ±5 V).

Digital integration includes ELC-driven event-triggered peripheral coordination, four-channel DMAC, DTC, and RSCAN CAN controller compliant with ISO 11898-1 at up to 1 Mbps. Power management features three low-power modes, LPT operation during software standby, and voltage detection circuits with 14-level programmability.

Key Specifications

Pinout & Package

48-pin LFQFP (PLQP0048KB-B), 7 × 7 mm body, 0.5 mm pitch, exposed pad, RoHS-compliant. Pinout validated per Renesas R01DS0402EJ0100 Rev.1.00 datasheet Table 1.4 and Figure 1.3 (pin assignment for FL package).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F523E5MDFL#10, R5F523E5NDFP offers higher ADC throughput and display support in a larger package, while R5F523E5MDFM provides expanded peripheral count in a mid-size 64-pin form factor - both retain identical analog precision specs but trade package size for feature density.

Availability

R5F523E5MDFL#10 is available at Aetrix Electronics and suitable for industrial weighing systems, PLC analog I/O modules, and energy metering subsystems requiring stable component supply, long-term lifecycle assurance, and guaranteed traceable sourcing.

Supply support for R5F523E5MDFL#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 infrastructure markets.

The RX23E-B Group targets high-accuracy sensor signal conditioning and measurement applications, integrating precision analog peripherals with robust real-time control and functional safety features for industrial automation and test equipment.

FAQ

What is the maximum sampling rate supported by the 24-bit delta-sigma ADC in R5F523E5MDFL#10?

The R5F523E5MDFL#10 supports a maximum delta-sigma ADC sampling rate of 31.25 kSPS at ±5-V full-scale input range. This rate is achieved with modulator clock f_MOD = 4 MHz and appropriate sinc filter configuration. Lower rates (e.g., 3.8 SPS) enable higher effective resolution and simultaneous 50/60 Hz rejection. The R5F523E5MDFL#10 does not support the 125 kSPS mode found in 'L'/'K'-suffix variants.

Does R5F523E5MDFL#10 include an integrated voltage reference, and what are its specifications?

Yes, R5F523E5MDFL#10 includes an on-chip 2.5-V voltage reference with ±8 ppm/°C temperature drift over –40°C to +85°C and ±10 mA output current capability. It is used internally by the 24-bit delta-sigma ADC and can be routed externally via VREF pin. The reference supports ratiometric measurements when paired with external excitation sources, and its stability enables high-accuracy sensor readings without external reference ICs.

Can R5F523E5MDFL#10 drive a segment LCD display?

No, R5F523E5MDFL#10 does not include an LCD controller/driver. Per Renesas documentation (R01DS0402EJ0100 Table 1.2), LCD functionality is excluded in all 'M'-suffix variants, including R5F523E5MDFL#10. This part is optimized for compact analog sensing applications where display support is unnecessary. For LCD-capable versions, consider 'N' or 'L' suffix parts such as R5F523E5NDFP.

What communication interfaces are available on R5F523E5MDFL#10, and how many channels does each support?

R5F523E5MDFL#10 provides CAN (1 channel, ISO 11898-1 compliant), SCI (3 channels: SCI1, SCI5, SCI6), I²C (1 channel, up to 400 kbps), and RSPI (1 channel, up to 16 Mbps). It lacks SCI0, SCI8, SCI9, and SCI12 present in 100-pin variants. All interfaces support hardware flow control, error detection, and ELC-triggered operation - critical for deterministic sensor data transfer in industrial networks.

Is R5F523E5MDFL#10 qualified for IEC60730 functional safety compliance?

R5F523E5MDFL#10 includes hardware features required for Class B compliance under IEC60730, including self-test assist for ADC (offset/gain calibration), clock frequency accuracy measurement (CAC), independent watchdog timer (IWDT) with dedicated oscillator, RAM test support via DOC, and analog input disconnect detection. While the MCU itself is not pre-certified, these integrated capabilities reduce software validation effort and accelerate certification of end equipment meeting household and industrial safety standards.