Renesas R5F52315ADFL#10

Overview

R5F52315ADFL#10 from Renesas is a 32-bit RXv2 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 a 12-bit 24-channel ADC with 0.83 µs conversion time. It supports USB 2.0 full-speed host/function/OTG, CAN, SCI, I²C, RSPI, and capacitive touch sensing - deployed in industrial HMI and smart sensor nodes requiring deterministic real-time control and secure firmware execution.

For engineers reviewing the R5F52315ADFL#10 datasheet, R5F52315ADFL#10 pinout, R5F52315ADFL#10 application, or R5F52315ADFL#10 equivalent, this page delivers verified package mapping (PLQP0048KB-B, 48-pin LFQFP), confirmed peripheral availability (CAN, USB, RTC, TSIP-Lite encryption), validated low-power modes (deep sleep, software standby with LPT), and two field-tested alternative parts for design continuity.

Technical Context

The R5F52315ADFL#10 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions, enabling 1-instruction-per-cycle execution at 54 MHz. It integrates memory protection unit (MPU), on-chip debugging (FINE interface), and event link controller (ELC) for interrupt-free inter-module triggering - critical for deterministic timing in motor control and safety-aware systems.

Its clock system includes main oscillator (1–20 MHz), sub-clock (32.768 kHz), PLL (4–12.5 MHz input), and USB-dedicated PLL (4/6/8/12 MHz outputs), allowing independent 54 MHz ICLK and 48 MHz USBCLK generation. Power management supports 1.8–5.5 V operation, three low-power modes, and battery-backed RTC with calendar mode and time-capture on external event signals.

Key Specifications

Pinout & Package

Package: PLQP0048KB-B - 48-pin Low-Profile Quad Flat Package (LFQFP), 7 mm × 7 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 MCU applications.

Compared with R5F52315ADFL#10, R5F52316ADFL#30 offers double flash capacity with zero layout change, while R5F52315ADFM#30 trades compact 48-pin form factor for external bus capability - making the former ideal for firmware scalability and the latter for hardware expansion.

Availability

R5F52315ADFL#10 is available at Aetrix Electronics and suitable for industrial motor drives, smart home hubs, medical diagnostic sensors, and energy monitoring meters requiring stable component supply across extended product lifecycles.

Supply support for R5F52315ADFL#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 automotive, industrial, and IoT markets.

The RX231 Group, which includes R5F52315ADFL#10, was designed for cost-sensitive industrial and consumer applications demanding real-time performance, security, and low-power operation - balancing high integration with pin-efficient packaging.

FAQ

What is the maximum operating frequency and core type of the R5F52315ADFL#10?

The R5F52315ADFL#10 features a 32-bit RXv2 CPU core with a maximum operating frequency of 54 MHz, delivering 88.56 DMIPS. Its Harvard architecture, 5-stage pipeline, and variable-length instruction set enable one-instruction-per-cycle execution under optimal conditions. This performance level supports real-time control tasks such as motor commutation and sensor fusion without external acceleration.

Does the R5F52315ADFL#10 include hardware encryption capabilities?

Yes, the R5F52315ADFL#10 integrates TSIP-Lite - a trusted secure IP module supporting AES-128 and AES-256 in ECB, CBC, and GCM modes, plus a true random number generator and secure key management. These features are certified for IEC60730 Class B compliance and enable secure firmware updates and authenticated communication in connected devices.

What package type and pin count does the R5F52315ADFL#10 use?

The R5F52315ADFL#10 uses the PLQP0048KB-B package: a 48-pin Low-Profile Quad Flat Package with 7 mm × 7 mm body size and 0.5 mm lead pitch. This RoHS-compliant LFQFP variant includes an exposed thermal pad and supports standard reflow soldering profiles - optimized for space-constrained industrial PCBs.

Which communication interfaces are supported by the R5F52315ADFL#10?

The R5F52315ADFL#10 supports USB 2.0 full-speed host/function/OTG, one CAN channel (ISO 11898-1, up to 1 Mbps), seven SCI channels (including IrDA via SCI5), one I²C bus interface, one RSPI, one serial sound interface (SSI), and optional SD host interface. Notably, CAN and USB are both present - a key differentiator versus lower-tier RX230 variants.

Is the R5F52315ADFL#10 suitable for low-power applications?

Yes, the R5F52315ADFL#10 supports three low-power modes - sleep, deep sleep, and software standby - with the low-power timer (LPT) operating during software standby using the 32.768 kHz sub-clock. It operates from 1.8 V to 5.5 V and includes RTC battery backup capability, enabling multi-year operation in battery-powered sensor nodes with sub-100 µA deep-sleep current.