Renesas R5F52316AGFM#50

Overview

R5F52316AGFM#50 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, SD host interface, capacitive touch sensing (24 channels), 12-bit A/D (24 ch), 12-bit D/A (2 ch), RTC, and operates from 1.8–5.5 V across −40 to +105°C.

For engineers reviewing the R5F52316AGFM#50 datasheet, R5F52316AGFM#50 pinout, R5F52316AGFM#50 application, or R5F52316AGFM#50 equivalent, key selection criteria include its 64-pin LFQFP package (PLQP0064KB-C), G-grade industrial temperature rating, absence of CAN and SDHI modules in this variant, and compatibility with Renesas' RX231 Group peripheral set including ELC, CTSU, and TSIP-Lite security functions.

Technical Context

The R5F52316AGFM#50 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 IEEE 754-compliant FPU for deterministic floating-point math in real-time control loops.

Its clock system includes main (1–20 MHz), sub-clock (32.768 kHz), and on-chip oscillators, with PLL support for 54 MHz system clock and 48 MHz USB clock. Power management features three low-power modes, LPT operation during software standby, and voltage detection circuits (LVD) with configurable thresholds for robust operation in industrial environments.

Key Specifications

Pinout & Package

64-pin Low-Profile Quad Flat Package (LFQFP), PLQP0064KB-C footprint, 10 × 10 mm body, 0.5 mm pitch, exposed thermal pad (non-electrical), RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52316AGFM#50, the R5F52316ADFM#30 offers identical functionality at lower thermal grade and cost, while R5F52318AGFM#30 expands memory and adds CAN/SDHI-making it suitable for more demanding edge nodes where R5F52316AGFM#50's 256 KB flash and peripheral subset are sufficient for current design scope.

Availability

R5F52316AGFM#50 is available at Aetrix Electronics and suitable for industrial HMI panels, smart energy meters, medical handheld diagnostics, and factory automation gateways requiring stable component supply, long-term lifecycle assurance, and G-grade thermal reliability.

Supply support for R5F52316AGFM#50 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, power, and SoC solutions for automotive, industrial, and IoT markets.

The R5F52316AGFM#50 belongs to the RX231 Group-a family designed for industrial and consumer applications demanding real-time performance, functional safety support (IEC60730), and integrated security, with emphasis on human-machine interface and sensor-edge processing.

FAQ

What is the maximum operating frequency and CPU performance of the R5F52316AGFM#50?

The R5F52316AGFM#50 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 zero-wait-state SRAM access enable deterministic real-time execution critical for motor control and sensor fusion tasks handled by the R5F52316AGFM#50.

Does the R5F52316AGFM#50 include CAN or SD host interface functionality?

No, the R5F52316AGFM#50 does not include CAN or SD host interface (SDHI) modules. Per Table 1.2 in the datasheet, these peripherals are absent in all 64-pin RX231 variants-including R5F52316AGFM#50. This distinguishes it from higher-pin-count or larger-memory variants like R5F52318AGFM#30, which do support CAN and SDHI.

What security features are implemented in the R5F52316AGFM#50?

The R5F52316AGFM#50 integrates TSIP-Lite, Renesas' Trusted Secure IP engine, supporting AES-128/256 encryption (ECB, CBC, GCM), CMAC authentication, SHA-256 hash, true random number generation, and secure key management. These features protect firmware integrity and enable secure boot and OTA updates-core requirements for certified industrial devices using the R5F52316AGFM#50.

What is the operating temperature range and package type of the R5F52316AGFM#50?

The R5F52316AGFM#50 is rated for −40 to +105°C operation (G grade) and uses a 64-pin LFQFP package (PLQP0064KB-C) measuring 10 × 10 mm with 0.5 mm pitch. This compact, thermally robust package supports reflow soldering and meets industrial reliability standards required for deployment in harsh environments where the R5F52316AGFM#50 is deployed.

How does the Event Link Controller (ELC) enhance real-time performance in the R5F52316AGFM#50?

The ELC in the R5F52316AGFM#50 enables direct hardware-level triggering between 61 peripheral events-such as timer overflow, ADC completion, or GPIO edge-without CPU intervention or interrupt latency. This allows deterministic, low-jitter coordination (e.g., MTU PWM sync → ADC start → DMA transfer), significantly improving responsiveness in time-critical control loops executed by the R5F52316AGFM#50.