Renesas R5F52315ADFM#10

Overview

R5F52315ADFM#10 from Renesas is a 32-bit RXv2 core microcontroller operating at up to 54 MHz (88.56 DMIPS), featuring 128 KB on-chip flash, 32 KB SRAM, 8 KB data flash, integrated FPU (IEEE 754 single-precision), and hardware encryption (TSIP-Lite AES-128/256). It targets industrial HMI, sensor nodes, and smart appliance control where deterministic real-time response, low-power operation, and secure firmware updates are required.

For engineers reviewing the R5F52315ADFM#10 datasheet, R5F52315ADFM#10 pinout, R5F52315ADFM#10 application, or R5F52315ADFM#10 equivalent, this MCU delivers verified USB 2.0 full-speed device capability, CAN 2.0B compliance (1 Mbps), 24-channel 12-bit ADC with 0.83 µs conversion time, dual 12-bit DAC outputs, and capacitive touch sensing for up to 24 self-capacitance keys - all in a 64-pin LFQFP package with 10 × 10 mm footprint.

Technical Context

The R5F52315ADFM#10 implements the RXv2 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code density. Its memory subsystem includes no-wait SRAM access at 54 MHz, flash accelerator-assisted execution above 32 MHz, and background operation (BGO) for data flash programming during active CPU operation.

Peripheral integration centers on event-driven operation via the Event Link Controller (ELC), enabling timer-triggered ADC conversions, PWM waveform generation, and module-to-module synchronization without CPU intervention. Clock management supports independent domain clocks (ICLK, PCLKA–D, BCLK, FCLK) with dedicated PLLs for USB (48 MHz) and RTC (32.768 kHz), plus a clock accuracy measurement circuit (CAC) for IEC60730 compliance.

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 matte tin finish.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit MCU applications.

Compared with R5F52315ADFM#10, R5F52315ADND#U0 offers identical functionality in a smaller WFLGA package requiring layout changes, while R5F52316ADFM#30 provides double the flash capacity in the same LFQFP footprint - making it ideal for scalable firmware development without hardware revision.

Availability

R5F52315ADFM#10 is available at Aetrix Electronics and suitable for industrial HMI, smart appliance control, and sensor node gateway applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F52315ADFM#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, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX231 Group - including R5F52315ADFM#10 - was designed for cost-sensitive industrial and consumer applications demanding high computational throughput, rich analog integration, and functional safety features without sacrificing power efficiency.

FAQ

What is the maximum operating frequency and core architecture of the R5F52315ADFM#10?

The R5F52315ADFM#10 operates at a maximum frequency of 54 MHz using the 32-bit RXv2 CPU core. This core implements a CISC Harvard architecture with a 5-stage pipeline, variable-length instructions, and hardware floating-point support compliant with IEEE 754. Its design achieves 88.56 DMIPS performance, enabling real-time processing for industrial control and sensor fusion tasks within the R5F52315ADFM#10.

Does the R5F52315ADFM#10 support USB device functionality, and what speed modes are available?

Yes, the R5F52315ADFM#10 integrates a USB 2.0 host/function module supporting full-speed (12 Mbps) and low-speed (1.5 Mbps) modes, along with OTG, isochronous transfers, and BC1.2 battery charging. Its internal USB transceiver and VCC_USB regulator allow operation without an external 3.3 V supply when VCC is between 4.0 V and 5.5 V - a key feature confirmed in the R5F52315ADFM#10 datasheet.

How many analog-to-digital converter channels does the R5F52315ADFM#10 include, and what is its minimum conversion time?

The R5F52315ADFM#10 includes a 12-bit A/D converter with 24 input channels and a minimum conversion time of 0.83 µs when the ADCLK runs at 54 MHz. Each channel supports individually configurable sampling time, and the module provides self-diagnostic functions and analog input disconnection detection - capabilities explicitly specified for the R5F52315ADFM#10 in its product documentation.

What security features are implemented in the R5F52315ADFM#10, and how are they applied?

The R5F52315ADFM#10 incorporates TSIP-Lite, a hardware security engine supporting AES-128/256 in ECB, CBC, GCM, and CTR modes, plus a true random number generator and secure key management. These features protect firmware integrity, enable encrypted communication, and prevent unauthorized access - all documented as standard on the R5F52315ADFM#10 silicon, not optional variants.

Is the R5F52315ADFM#10 compatible with IEC60730 Class B safety standards, and which built-in functions assist compliance?

Yes, the R5F52315ADFM#10 includes dedicated IEC60730 compliance assistance: RAM test support via Data Operation Circuit (DOC), clock frequency accuracy measurement (CAC), independent watchdog timer (IWDT) diagnostics, and A/D converter self-test functions. These are explicitly listed in the R5F52315ADFM#10 datasheet as part of its functional safety feature set for household and industrial equipment.