Renesas R5F52315AGFM#30

Overview

R5F52315AGFM#30 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-key support), and TSIP-Lite encryption engine. It targets industrial HMI, smart sensor nodes, and battery-powered control systems requiring real-time performance, low-power operation, and secure firmware execution.

For engineers reviewing the R5F52315AGFM#30 datasheet, R5F52315AGFM#30 pinout, R5F52315AGFM#30 application, or R5F52315AGFM#30 equivalent, this MCU delivers IEEE 754-compliant FPU, ELC-driven event-triggered peripheral coordination, IEC60730 safety assist functions, and dual-voltage operation (1.8–5.5 V) - critical for deterministic timing, functional safety compliance, and mixed-signal embedded designs.

Technical Context

The R5F52315AGFM#30 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions enabling 88.56 DMIPS at 54 MHz. It integrates a dedicated USB-dedicated PLL (4/6/8/12 MHz outputs) and system PLL supporting independent clock domains: ICLK (54 MHz), PCLKA (54 MHz), PCLKD (54 MHz), and PCLKB (32 MHz) for optimized peripheral timing.

Its peripheral set includes MTU2a (6-channel 16-bit timer with complementary PWM), TPUa (6-channel 16-bit timer), CMT (4-channel 16-bit compare-match), IWDT (14-bit, driven by dedicated 15-kHz oscillator), RTC (sub-clock sourced, calendar mode), and ELC enabling interrupt-free inter-module triggering - essential for deterministic low-latency control loops and sleep-mode responsiveness.

Key Specifications

Pinout & Package

Package: 64-pin LFQFP (PLQP0064KB-C), 10 × 10 mm, 0.5 mm pitch, exposed pad (thermal enhancement). Pin count and I/O configuration align with RX231 Group 64-pin variant: 47 general-purpose I/O pins, 5-V tolerant on 5 pins, open-drain on 34 pins, pull-up on 47 pins.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52315AGFM#30, the R5F52315ADFM#30 offers identical functionality at lower thermal grade, while R5F52316AGFM#30 provides double flash capacity in the same 64-pin LFQFP footprint - enabling seamless migration paths for thermal or memory-constrained designs.

Availability

R5F52315AGFM#30 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, secure gateways, and motor control subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F52315AGFM#30 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 - to which R5F52315AGFM#30 belongs - was designed for high-integration, safety-aware industrial control applications demanding real-time performance, low-power operation, and embedded security features.

FAQ

What is the maximum operating frequency and CPU performance of the R5F52315AGFM#30?

The R5F52315AGFM#30 operates at a maximum system clock frequency of 54 MHz using its RXv2 CPU core, delivering 88.56 DMIPS of processing performance. This enables deterministic real-time execution for control loops, communication stacks, and signal processing tasks without external acceleration. The R5F52315AGFM#30 achieves this with zero-wait-state access to SRAM and optimized instruction pipelining.

Does the R5F52315AGFM#30 support USB On-The-Go (OTG) functionality?

Yes, the R5F52315AGFM#30 integrates a USB 2.0 host/function/OTG module compliant with USB 2.0 specification, supporting full-speed (12 Mbps) and low-speed (1.5 Mbps) modes, isochronous transfers, and BC1.2 battery charging. Its internal USB transceiver and VBUS detection eliminate external PHY requirements, and OTG role switching is managed in firmware - a key capability of the R5F52315AGFM#30 for flexible connectivity.

What analog peripherals are included in the R5F52315AGFM#30?

The R5F52315AGFM#30 includes a 12-bit S12ADE A/D converter with 24 input channels and 0.83 µs minimum conversion time, a 12-bit R12DAA D/A converter with two output channels (0.4–AVCC0−0.5 V range), an on-chip temperature sensor, and two comparator units (CMPBa) with window mode support. These analog resources are fully integrated and calibrated - a defining feature of the R5F52315AGFM#30 for mixed-signal industrial applications.

Is the R5F52315AGFM#30 qualified for extended temperature operation?

Yes, the R5F52315AGFM#30 is the G-version part rated for −40 to +105°C operation, making it suitable for under-hood automotive auxiliary systems, industrial drives, and outdoor equipment. This extended temperature qualification is confirmed in Renesas' official product list (Table 1.4, R01DS0261EJ0120 Rev.1.20) and applies specifically to the R5F52315AGFM#30 orderable part number.

What security features does the R5F52315AGFM#30 offer for firmware protection?

The R5F52315AGFM#30 incorporates TSIP-Lite - a hardware encryption engine supporting AES-128/256 in ECB, CBC, GCM, and CMAC modes, plus a true random number generator and secure key management. It prevents unauthorized access to encryption logic and protects against firmware cloning. These features are documented in the R5F52315AGFM#30 datasheet section "Encryption Functions" and are active upon factory programming.