Renesas R5F52316ADFM#30

Overview

R5F52316ADFM#30 from Renesas is a 32-bit RXv2 core microcontroller operating at up to 54 MHz (88.56 DMIPS), featuring 256 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 supports USB 2.0 full-speed host/function/OTG, CAN, 24-channel 12-bit ADC (0.83 µs conversion), dual 12-bit DAC, RTC with battery backup, and capacitive touch sensing - deployed in industrial HMI and smart sensor edge nodes.

For engineers reviewing the R5F52316ADFM#30 datasheet, R5F52316ADFM#30 pinout, R5F52316ADFM#30 application, or R5F52316ADFM#30 equivalent, key selection criteria include its 64-pin LFQFP package (PLQP0064KB-C), absence of SDHI and CAN modules per datasheet Table 1.2, D-version −40 to +85°C rating, and verified support for ELC-triggered peripheral coordination without CPU wake-up.

Technical Context

The R5F52316ADFM#30 belongs to the RX231 Group and implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions. It integrates a memory protection unit (MPU), on-chip debugging (FINE interface), and three low-power modes (sleep, deep sleep, software standby) with LPT operation during standby.

Clock management includes main oscillator (1–20 MHz), sub-clock (32.768 kHz), PLL (4–12.5 MHz input), and USB-dedicated PLL; system clock runs at 54 MHz while peripheral clocks (PCLKA/B/D) are independently configurable up to 54/32 MHz. The device lacks SDHI and CAN modules per Table 1.2 but retains USBd, RIIC, RSPI, SCI×5, CTSU (10 channels), and 12-bit D/A (2 channels).

Key Specifications

Pinout & Package

64-pin LFQFP package (PLQP0064KB-C), 10 × 10 mm body, 0.5 mm pitch, exposed thermal pad (non-electrical), RoHS-compliant lead finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52316ADFM#30, R5F52316ADFP#30 offers greater I/O and memory scalability in a larger package, while R5F52315ADFM#30 reduces cost and flash capacity without altering pin compatibility or peripheral functionality - enabling direct migration within the same PCB footprint where firmware fits.

Availability

R5F52316ADFM#30 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, USB HID devices, and PLC I/O modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F52316ADFM#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 industrial, automotive, and IoT applications.

The RX231 Group, including R5F52316ADFM#30, is engineered for cost-effective, secure, and low-power embedded control in industrial HMIs, sensor nodes, and USB-connected edge devices - emphasizing real-time performance, functional safety, and hardware-accelerated cryptography.

FAQ

What is the maximum operating frequency and CPU performance of the R5F52316ADFM#30?

The R5F52316ADFM#30 operates at a maximum system clock frequency of 54 MHz, delivering 88.56 DMIPS. Its RXv2 32-bit CPU core features a 5-stage pipeline, variable-length instructions, and hardware multiplier/divider - enabling deterministic real-time execution for motor control and sensor processing tasks. The R5F52316ADFM#30 achieves sub-20 ns instruction cycles at full speed with zero-wait-state access to SRAM.

Does the R5F52316ADFM#30 support CAN or SD host interface?

No, the R5F52316ADFM#30 does not support CAN or SD host interface (SDHI). Per datasheet Table 1.2, these modules are excluded from the RX231 Group's 64-pin package variants, including R5F52316ADFM#30. It retains USB 2.0 FS host/function/OTG, SCI×5, RIIC, RSPI, and CTSU - making it suitable for USB-centric or serial-fieldbus applications where CAN/SD are not required.

What package type and pin count does the R5F52316ADFM#30 use?

The R5F52316ADFM#30 uses a 64-pin LFQFP package designated PLQP0064KB-C: 10 × 10 mm body, 0.5 mm pitch, with exposed thermal pad. This package supports 43 GPIO (including 5-V tolerant and open-drain options), 10 CTSU channels, and all core peripherals except CAN and SDHI. The R5F52316ADFM#30 is compatible with standard QFP reflow profiles and manual soldering processes.

What security and functional safety features does the R5F52316ADFM#30 include?

The R5F52316ADFM#30 integrates TSIP-Lite hardware encryption (AES-128/256, GCM/ECB/CBC), true random number generation, and IEC60730-compliant self-test functions for ADC, IWDT, CAC, and RAM. These features enable secure boot, encrypted firmware updates, and Class B safety certification for industrial control systems. The R5F52316ADFM#30 implements memory protection unit (MPU) and secure key management to prevent unauthorized access to cryptographic operations.

How does the Event Link Controller (ELC) enhance real-time performance in the R5F52316ADFM#30?

The ELC in the R5F52316ADFM#30 enables 61 peripheral event sources (e.g., timer overflow, GPIO edge) to directly trigger actions in other modules - such as starting an ADC conversion or reloading a PWM register - without CPU intervention or interrupt latency. This allows deterministic, low-jitter coordination between peripherals during sleep modes. In the R5F52316ADFM#30, ELC reduces system-level jitter by up to 3.2 µs compared to software-triggered alternatives.