Renesas R5F52315CDFM#10

Overview

R5F52315CDFM#10 from Renesas is a 32-bit RXv2 microcontroller with 54 MHz max operating frequency, 128 KB on-chip flash memory, 32 KB SRAM, and integrated 12-bit A/D converter (24 channels), 12-bit D/A converter (2 channels), USB 2.0 full-speed host/function/OTG, CAN interface, capacitive touch sensing unit (24 keys), and TSIP-Lite encryption engine. It operates across 1.8–5.5 V and supports −40 to +85°C industrial temperature range in a 64-pin LFQFP package.

For engineers reviewing the R5F52315CDFM#10 datasheet, R5F52315CDFM#10 pinout, R5F52315CDFM#10 application, or R5F52315CDFM#10 equivalent, key selection criteria include its 54 MHz RXv2 CPU with FPU, USB+CAN dual-communication capability, 24-channel ADC with sub-1 µs conversion, low-power software standby mode with LPT, and support for IEC60730-compliant safety functions including RAM test assistance and self-diagnostic A/D.

Technical Context

The R5F52315CDFM#10 implements the RXv2 CPU core with IEEE 754-compliant 32-bit single-precision FPU, 88.56 DMIPS performance at 54 MHz, and CISC Harvard architecture with 5-stage pipeline. It integrates an event link controller (ELC) enabling interrupt-free inter-module triggering and a memory protection unit (MPU) for secure execution.

Its clock system includes main oscillator (1–20 MHz), sub-clock (32.768 kHz), on-chip high/low-speed oscillators, PLL (4–12.5 MHz input), and USB-dedicated PLL supporting 48 MHz USB clock generation. Power management features three low-power modes, LVD with 14-level voltage detection, and RTC operation on battery backup.

Key Specifications

Pinout & Package

Package: 64-pin Low-profile Quad Flat Package (LFQFP), PLQP0064KB-C, 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 32-bit industrial MCU applications.

Compared with R5F52315CDFM#10, R5F52315ADFM#30 omits CAN and SDHI but matches flash/RAM; R5F52316CDFM#30 adds 128 KB flash without altering peripherals-making it ideal for scaling firmware while retaining identical board layout and driver compatibility.

Availability

R5F52315CDFM#10 is available at Aetrix Electronics and suitable for industrial HMI panels, smart energy meters, USB-C gateways, and IEC60730-compliant appliance controllers requiring stable component supply, long lifecycle assurance, and traceable sourcing.

Supply support for R5F52315CDFM#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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX231 Group, which includes R5F52315CDFM#10, was designed for cost-sensitive industrial and consumer applications demanding USB+CAN connectivity, capacitive touch, safety compliance, and low-power operation in compact packages.

FAQ

What is the maximum operating frequency and CPU architecture of the R5F52315CDFM#10?

The R5F52315CDFM#10 operates at a maximum frequency of 54 MHz using the 32-bit RXv2 CPU core. This core features a 5-stage pipeline, variable-length instructions, IEEE 754-compliant floating-point unit, and 88.56 DMIPS performance. Its Harvard architecture and memory protection unit (MPU) support deterministic real-time execution and secure memory partitioning in the R5F52315CDFM#10.

Does the R5F52315CDFM#10 support CAN communication, and what is its compliance level?

Yes, the R5F52315CDFM#10 integrates a CAN module compliant with ISO 11898-1, supporting standard and extended frames at up to 1 Mbps. It provides 16 message boxes and operates independently of CPU intervention via the Event Link Controller (ELC). This CAN capability is confirmed in the RX231 Group specification table and applies directly to the R5F52315CDFM#10 package variant.

What are the analog-to-digital converter (ADC) specifications for the R5F52315CDFM#10?

The R5F52315CDFM#10 includes a 12-bit successive-approximation ADC with 24 input channels, capable of conversion in as little as 0.83 µs when ADCLK runs at 54 MHz. It supports scan modes, per-channel sampling time configuration, self-diagnostic function, and analog input disconnection detection-all documented in the S12ADE module description applicable to the R5F52315CDFM#10.

Is the R5F52315CDFM#10 qualified for industrial temperature range, and what is its supply voltage range?

Yes, the R5F52315CDFM#10 is rated for −40 to +85°C (D version) and operates from a single supply of 1.8 V to 5.5 V. Its voltage detection circuit offers 14 programmable LVD levels, and it supports low-power modes including software standby with active low-power timer-key specifications confirmed for the R5F52315CDFM#10 in Table 1.3 of the datasheet.

What security and safety features does the R5F52315CDFM#10 provide for certified applications?

The R5F52315CDFM#10 integrates TSIP-Lite with AES-128/256 encryption, true random number generation, and IEC60730 Class B support-including A/D self-test, clock accuracy measurement (CAC), RAM test assistance via DOC, and IWDT diagnostics. These features are explicitly listed under "Useful functions for IEC60730 compliance" and apply to the R5F52315CDFM#10 as a member of the RX231 Group D-version lineup.