Renesas R5F52315ADNE#U0

Overview

R5F52315ADNE#U0 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, and integrated peripherals including USB 2.0 full-speed host/function/OTG, CAN, 12-bit A/D (24 channels), 12-bit D/A (2 channels), RTC, capacitive touch sensing unit (CTSU), TSIP-Lite encryption engine, and FPU compliant with IEEE754. It targets industrial HMI and embedded control applications requiring secure, low-power, mixed-signal processing.

For engineers reviewing the R5F52315ADNE#U0 datasheet, R5F52315ADNE#U0 pinout, R5F52315ADNE#U0 application, or R5F52315ADNE#U0 equivalent, this page delivers verified technical context, package mapping to PWQN0048KB-A (7 × 7 mm, 0.5 mm pitch), confirmed peripheral channel counts per package, real-world use-value in safety-critical IEC60730-compliant systems, and validated alternative options for migration or sourcing continuity.

Technical Context

The R5F52315ADNE#U0 belongs to the RX231 Group and implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions. It supports IEEE754-compliant single-precision floating-point operations and 32-bit multiply-accumulate DSP instructions, enabling deterministic real-time signal processing.

Its clock system integrates main, sub, and on-chip oscillators with PLL and USB-dedicated PLL, allowing independent configuration of ICLK (54 MHz), PCLKA/B/D (up to 54/32/54 MHz), BCLK (32 MHz), and FCLK (32 MHz). The ELC enables interrupt-free inter-module event linking, while the MPU enforces memory protection for functional safety compliance.

Key Specifications

Pinout & Package

PWQN0048KB-A is a 48-pin HWQFN package (7 × 7 mm, 0.5 mm pitch) with exposed thermal pad, rated for −40 to +85°C operation. Pin functions are defined by MPC register configuration; all I/O pins support 5-V tolerance on selected channels and programmable pull-up/pull-down.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52315ADNE#U0, R5F52315ADFM#30 provides more I/O and external bus capability in a larger package, while R5F52305ADNE#U0 removes high-complexity peripherals to reduce cost and power - both require PCB redesign and firmware adaptation.

Availability

R5F52315ADNE#U0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart appliance controllers, USB-capable data loggers, and secure industrial gateway nodes requiring stable component supply across multi-year production cycles.

Supply support for R5F52315ADNE#U0 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 R5F52315ADNE#U0, was designed for high-integrity embedded applications demanding real-time performance, functional safety support (IEC60730), and integrated connectivity - especially where USB, CAN, and capacitive touch coexist in space-constrained designs.

FAQ

What is the maximum operating frequency and core architecture of the R5F52315ADNE#U0?

The R5F52315ADNE#U0 operates at a maximum system clock frequency of 54 MHz using the 32-bit RXv2 CPU core. This core implements a Harvard architecture with a 5-stage pipeline, variable-length instructions, and achieves 88.56 DMIPS performance. Its design supports deterministic real-time execution, floating-point math, and DSP operations critical for industrial control and sensor processing tasks.

Which package type does the R5F52315ADNE#U0 use, and what are its key mechanical characteristics?

The R5F52315ADNE#U0 uses the PWQN0048KB-A package: a 48-pin HWQFN measuring 7 × 7 mm with 0.5 mm pitch and an exposed thermal pad. It supports −40 to +85°C operation (D version) and features 5-V tolerant I/O on designated pins, making it suitable for compact, thermally constrained industrial PCB layouts.

Does the R5F52315ADNE#U0 include USB and CAN interfaces, and what are their compliance levels?

Yes, the R5F52315ADNE#U0 integrates a USB 2.0 full-speed host/function/OTG module compliant with USB 2.0 specification (12 Mbps), supporting BC1.2 battery charging and isochronous transfers. It also includes one CAN channel compliant with ISO11898-1, supporting standard and extended frames at up to 1 Mbps - both are fully implemented in silicon and require no external transceivers beyond standard termination.

How many A/D and D/A channels does the R5F52315ADNE#U0 provide, and what are their resolution and speed specs?

The R5F52315ADNE#U0 includes a 12-bit S12ADE A/D converter with 8 input channels (per Table 1.2 for 48-pin packages), capable of conversion in 0.83 µs at 54 MHz ADCLK. It also integrates two 12-bit R12DAA D/A channels with output range of 0.4 V to AVCC0 − 0.5 V - sufficient for precision analog actuator control and sensor calibration reference generation.

What security and functional safety features are built into the R5F52315ADNE#U0?

The R5F52315ADNE#U0 incorporates TSIP-Lite for hardware-accelerated AES-128/256 encryption (GCM/ECB/CBC modes) and true random number generation. For functional safety, it provides IEC60730-compliant self-test assistance for the A/D converter, independent watchdog timer (IWDT), clock accuracy measurement circuit (CAC), and RAM testing via DOC - reducing certification burden for household and industrial equipment.