Renesas R5F52318ADFM#30

Overview

R5F52318ADFM#30 from Renesas is a 32-bit RXv2 core microcontroller operating at up to 54 MHz (88.56 DMIPS), featuring 512 KB on-chip flash, 64 KB SRAM, 8 KB data flash, integrated FPU (IEEE 754 single-precision), and hardware encryption (TSIP-Lite AES-128/256). It supports USB 2.0 full-speed host/function/OTG, CAN 2.0B, SD host interface, capacitive touch sensing (10 channels), 12-bit A/D (12 ch), 12-bit D/A (2 ch), RTC, and operates from 1.8–5.5 V across −40 to +85°C.

For engineers reviewing the R5F52318ADFM#30 datasheet, R5F52318ADFM#30 pinout, R5F52318ADFM#30 application, or R5F52318ADFM#30 equivalent, this MCU delivers deterministic real-time control with low-power modes (deep sleep, software standby), event-driven peripheral coordination via ELC, and IEC60730-compliant safety features for industrial HMI, motor control, and smart sensor nodes requiring secure, mixed-signal processing.

Technical Context

The R5F52318ADFM#30 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions-enabling ultra-compact code and fast interrupt response. It integrates a memory protection unit (MPU), on-chip debugging circuit, and CISC instruction set including 23 DSP and 11 FPU instructions.

Its clock system includes main (1–20 MHz), sub (32.768 kHz), and on-chip oscillators, plus PLLs for 54 MHz system clock and 48 MHz USB clock. Peripheral timing is segmented: ICLK (54 MHz), PCLKA (54 MHz for MTU2a), PCLKD (54 MHz for A/D), and PCLKB (32 MHz for most modules), enabling precise power/performance trade-offs.

Key Specifications

Pinout & Package

Package: PLQP0064KB-C - 64-pin LFQFP, 10 × 10 mm body, 0.5 mm pitch, exposed thermal pad (EP), RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52318BDFM#30, R5F52318ADFM#30 omits CAN and SDHI but retains full TSIP-Lite and memory capacity-making it optimal for secure, USB-centric HMI or sensor nodes. Against R5F52317ADFM#30, it adds 128 KB flash, 32 KB RAM, 8 KB data flash, and hardware encryption-justifying upgrade for firmware update integrity or larger application code.

Availability

R5F52318ADFM#30 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, motor control gateways, secure firmware update modules, and embedded USB device applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F52318ADFM#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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX231 Group-including R5F52318ADFM#30-is designed for high-integrity industrial control and human-machine interfaces, emphasizing real-time performance, functional safety (IEC60730), and integrated security (TSIP-Lite) in compact packages.

FAQ

What is the maximum operating frequency and CPU performance of the R5F52318ADFM#30?

The R5F52318ADFM#30 operates at a maximum system clock frequency of 54 MHz, delivering 88.56 DMIPS performance using the RXv2 32-bit CPU core. Its 5-stage pipeline, variable-length instruction set, and on-chip FPU enable deterministic real-time execution for motor control and signal processing tasks. The R5F52318ADFM#30 achieves this performance with no wait states on SRAM at full speed and optimized flash access via ROM accelerator.

Does the R5F52318ADFM#30 support USB 2.0 and CAN interfaces?

The R5F52318ADFM#30 integrates a full-speed USB 2.0 host/function/OTG module supporting 12 Mbps transfers, isochronous mode, and BC1.2 battery charging-but does not include a CAN module. CAN functionality is available only on the B-version variants (e.g., R5F52318BDFM#30). The R5F52318ADFM#30 retains all other communication peripherals including SCI, I2C, RSPI, SDHI, and IrDA.

What security features does the R5F52318ADFM#30 provide?

The R5F52318ADFM#30 includes TSIP-Lite-a hardware cryptographic engine supporting AES-128/256 in GCM, CBC, ECB, and other modes, plus a true random number generator and secure key management. It also provides memory protection (MPU), IEC60730-compliant self-test functions for A/D, IWDT, and CAC, and tamper-resistant key storage. These features make the R5F52318ADFM#30 suitable for secure firmware updates and trusted boot applications.

What is the package type and pin count of the R5F52318ADFM#30?

The R5F52318ADFM#30 uses the PLQP0064KB-C package: a 64-pin low-profile quad flat package with 10 × 10 mm body size, 0.5 mm pitch, and exposed thermal pad. This RoHS-compliant package supports reflow soldering and provides mechanical stability for industrial environments. The R5F52318ADFM#30 shares pin compatibility with other RX231 Group 64-pin variants like R5F52317ADFM#30 and R5F52318BDFM#30.

How does the Event Link Controller (ELC) enhance real-time performance in the R5F52318ADFM#30?

The ELC in the R5F52318ADFM#30 enables direct hardware-level triggering between 61 event sources (e.g., timer overflow, GPIO edge, A/D completion) and peripheral modules-bypassing CPU interrupts entirely. This reduces latency to sub-microsecond levels, allows peripheral coordination during CPU sleep, and eliminates jitter in time-critical sequences such as synchronized PWM generation and A/D sampling. The R5F52318ADFM#30 leverages ELC for deterministic, low-overhead system-level automation.