Renesas R5F52317BGFL#30

Overview

R5F52317BGFL#30 from Renesas is a 32-bit RXv2 microcontroller with 54 MHz max operating frequency, 384 KB on-chip flash memory, 32 KB SRAM, and integrated FPU compliant with IEEE 754 single-precision floating-point standard. It features USB 2.0 full-speed host/function/OTG, CAN interface, 12-bit A/D converter (24 channels), 12-bit D/A converter (2 channels), capacitive touch sensing unit (24 keys), and operates across −40 to +105°C for industrial control panels requiring real-time responsiveness and secure firmware execution.

For engineers reviewing the R5F52317BGFL#30 datasheet, R5F52317BGFL#30 pinout, R5F52317BGFL#30 application, or R5F52317BGFL#30 equivalent, key selection criteria include its 54-MHz RXv2 core performance (88.56 DMIPS), integrated TSIP-Lite encryption engine (AES-128/256, GCM/CBC), RTC with battery backup support, and compatibility with 48-pin LFQFP packaging for space-constrained embedded designs.

Technical Context

The R5F52317BGFL#30 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code density. Its clock system integrates main oscillator (1–20 MHz), sub-clock (32.768 kHz), PLL (4–12.5 MHz input), and USB-dedicated PLL supporting independent 54-MHz system clock and 48-MHz USB clock generation.

Peripheral integration includes ELC for interrupt-free event-driven operation, DTC for efficient data transfers, and MPC enabling flexible I/O function assignment. The MCU supports three low-power modes-sleep, deep sleep, and software standby-with LPT running during standby and IWDT driven by dedicated 15-kHz oscillator.

Key Specifications

Pinout & Package

48-pin LFQFP (PLQP0048KB-B) package, 7 × 7 mm body size, 0.5 mm pitch, exposed pad for thermal dissipation. Pinout validated per Renesas R01DS0261EJ0120 Rev.1.20 datasheet Figures 2.1–2.4 and Table 2.1 (Pin Functions).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52317BGFL#30, the R5F52317ADFL#30 trades industrial temperature range and CAN for lower cost, while R5F52318BGFL#30 adds flash/RAM headroom and SDHI without changing PCB layout-enabling scalable design reuse.

Availability

R5F52317BGFL#30 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, human-machine interface, and automotive body control applications requiring stable component supply and long-term lifecycle assurance.

Supply support for R5F52317BGFL#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, and power solutions for industrial, automotive, and IoT markets.

The RX231 Group, including R5F52317BGFL#30, is engineered for high-integrity industrial applications demanding real-time performance, functional safety (IEC 60730), and secure connectivity via USB, CAN, and encrypted peripherals.

FAQ

What is the maximum operating frequency and core architecture of the R5F52317BGFL#30?

The R5F52317BGFL#30 operates at a maximum 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 delivers 88.56 DMIPS performance. Its design supports deterministic real-time execution essential for industrial control applications where R5F52317BGFL#30 is deployed.

Does the R5F52317BGFL#30 include hardware encryption capabilities?

Yes, the R5F52317BGFL#30 integrates TSIP-Lite, a trusted secure IP module supporting AES-128 and AES-256 encryption in ECB, CBC, and GCM modes, along with a true random number generator. These features enable secure firmware updates and data protection in applications such as smart meters where R5F52317BGFL#30 serves as the primary security anchor.

What communication interfaces are supported by the R5F52317BGFL#30?

The R5F52317BGFL#30 supports USB 2.0 full-speed host/function/OTG, CAN 2.0B (1 Mbps), six SCI channels, one I²C interface, one RSPI, one serial sound interface, and one SD host interface. This comprehensive set enables R5F52317BGFL#30 to serve as a central controller in multi-protocol industrial gateways and HMI systems.

What is the operating temperature range and package type of the R5F52317BGFL#30?

The R5F52317BGFL#30 is rated for −40 to +105°C operation and uses a 48-pin LFQFP package (PLQP0048KB-B) measuring 7 × 7 mm with 0.5 mm pitch. This industrial-grade thermal specification and compact footprint make R5F52317BGFL#30 suitable for deployment in harsh environments like factory automation controllers and automotive under-hood modules.

How does the R5F52317BGFL#30 support low-power operation in battery-backed applications?

The R5F52317BGFL#30 offers three low-power modes-sleep, deep sleep, and software standby-with the low-power timer (LPT) continuing operation during software standby using the sub-clock or IWDT oscillator. Its RTC can run on battery backup power, enabling R5F52317BGFL#30 to maintain accurate timekeeping and wake-on-event functionality in energy-harvesting or battery-powered metering devices.