Renesas R5F52317BGNE#20

Overview

R5F52317BGNE#20 from Renesas is a 32-bit RXv2 core microcontroller operating at up to 54 MHz (88.56 DMIPS), featuring 384 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 2.0B (1 Mbps), 24-channel 12-bit ADC (0.83 µs conversion), dual 12-bit DAC, RTC with battery backup, and capacitive touch sensing (24 keys) - deployed in industrial HMI and smart sensor edge nodes.

For engineers reviewing the R5F52317BGNE#20 datasheet, R5F52317BGNE#20 pinout, R5F52317BGNE#20 application, or R5F52317BGNE#20 equivalent, key selection criteria include its 48-pin HWQFN (7 × 7 mm, 0.5 mm pitch) package, −40 to +105°C extended temperature rating (G version), CAN + USB coexistence, and TSIP-Lite security for firmware integrity in connected industrial devices.

Technical Context

The R5F52317BGNE#20 implements the RXv2 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions, enabling ultra-compact code and fast interrupt response. Its clock system integrates main (1–20 MHz), sub (32.768 kHz), and on-chip oscillators, plus PLLs for 54 MHz system clock and 48 MHz USB clock - all managed via independent ICLK, PCLKA/B/D, BCLK, and FCLK domains.

Peripheral integration includes ELC for event-driven module triggering without CPU intervention, DTC for interrupt-triggered transfers, and MPC for flexible pin function assignment. The device supports software standby mode with active low-power timer (LPT) and RTC operation on VBAT, meeting IEC60730 functional safety requirements via built-in self-test aids for ADC, IWDT, clock accuracy (CAC), and RAM.

Key Specifications

Pinout & Package

Package: 48-pin HWQFN (PWQN0048KB-A), 7 × 7 mm body, 0.5 mm pitch, exposed thermal pad, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52317BGNE#20, R5F52317ADNE#U0 trades extended temperature and CAN for lower cost in benign environments, while R5F52318BGNE#U0 provides scalable memory headroom within identical thermal and interface constraints - enabling seamless migration paths without PCB redesign.

Availability

R5F52317BGNE#20 is available at Aetrix Electronics and suitable for industrial HMI, smart sensor nodes, USB-CAN bridge devices, and secure firmware updater modules requiring stable component supply across extended temperature ranges.

Supply support for R5F52317BGNE#20 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 RX231 Group - including R5F52317BGNE#20 - is engineered for high-integration industrial control and human-machine interface applications demanding real-time performance, security, and extended temperature resilience.

FAQ

What is the maximum operating frequency and CPU performance of the R5F52317BGNE#20?

The R5F52317BGNE#20 operates at a maximum frequency of 54 MHz and delivers 88.56 DMIPS using the 32-bit RXv2 CPU core. Its performance is enhanced by an integrated IEEE 754-compliant floating-point unit, 5-stage pipeline, and variable-length instruction set - enabling deterministic real-time execution for industrial control algorithms. This performance level is sustained across its full −40 to +105°C operating range.

Does the R5F52317BGNE#20 support CAN communication, and what standard does it comply with?

Yes, the R5F52317BGNE#20 includes a CAN module compliant with ISO11898-1, supporting both standard and extended frames at up to 1 Mbps. It features 16 message boxes and is enabled in the G-version package variants like R5F52317BGNE#20. This makes the R5F52317BGNE#20 suitable for industrial automation networks and diagnostic interfaces where robust, deterministic messaging is required.

What security features does the R5F52317BGNE#20 provide for firmware protection?

The R5F52317BGNE#20 integrates TSIP-Lite - a hardware encryption engine supporting AES-128/256 in ECB, CBC, GCM, and other modes, plus a true random number generator and secure key management. These features prevent unauthorized access, firmware cloning, and tampering, directly supporting IEC62443-3-3 and IEC60730 Class B compliance for secure boot and OTA update validation in the R5F52317BGNE#20.

What is the package type and pin count of the R5F52317BGNE#20?

The R5F52317BGNE#20 uses a 48-pin HWQFN package (part number PWQN0048KB-A), measuring 7 × 7 mm with 0.5 mm pitch and an exposed thermal pad. This compact, surface-mount package supports high-density PCB layouts and provides thermal efficiency for extended-temperature operation - a key specification confirmed for the R5F52317BGNE#20 in Renesas' official documentation.

How does the R5F52317BGNE#20 handle low-power operation in battery-backed applications?

The R5F52317BGNE#20 supports three low-power modes - sleep, deep sleep, and software standby - with the RTC and low-power timer (LPT) remaining active during software standby using VBAT or the dedicated IWDT oscillator. This enables years of operation on coin-cell batteries in sensor nodes, with wake-up events triggered by external pins, timers, or communication activity - a verified capability of the R5F52317BGNE#20 per its datasheet.