Renesas R5F52317AGFL#50

Overview

R5F52317AGFL#50 from Renesas is a 32-bit RXv2 microcontroller designed for industrial and consumer applications requiring real-time control, secure communication, and capacitive touch interfaces. It operates at up to 54 MHz (88.56 DMIPS), integrates 384 KB on-chip flash, 32 KB SRAM, 8 KB data flash, a 12-bit 24-channel ADC (0.83 µs conversion), and dual 12-bit DACs. Its feature set supports USB 2.0 full-speed host/function/OTG, CAN 2.0B, SD host interface, and TSIP-Lite encryption.

For engineers reviewing the R5F52317AGFL#50 datasheet, R5F52317AGFL#50 pinout, R5F52317AGFL#50 application, or R5F52317AGFL#50 equivalent, key selection criteria include its 48-pin LFQFP package (PLQP0048KB-B), −40 to +105°C operating range (G version), integrated FPU and MPU, RTC with battery backup support, and ELC-driven low-power peripheral coordination without CPU intervention.

Technical Context

The R5F52317AGFL#50 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions-enabling ultra-compact code and single-cycle instruction execution at 54 MHz. It includes a single-precision IEEE 754-compliant FPU, 32-bit multiplier, and hardware divider with 2-cycle minimum latency.

Its peripheral subsystem relies on the Event Link Controller (ELC) to trigger timer, ADC, and communication module operations directly via event signals-eliminating interrupt latency and enabling synchronized low-power operation. The MCU supports three low-power modes (sleep, deep sleep, software standby), with the low-power timer (LPT) and RTC remaining active during software standby using the 32.768 kHz sub-clock or dedicated IWDT oscillator.

Key Specifications

Pinout & Package

Package: 48-pin LFQFP (PLQP0048KB-B), 7 × 7 mm body, 0.5 mm pitch, exposed pad (thermal pad not electrically connected). Pinout conforms to RX231 Group specification for 48-pin variants - supports 30 general-purpose I/O pins (5-V tolerant, open-drain capable), 8 external interrupt inputs (IRQ0–IRQ7, NMI), and dedicated function pins for USB, CAN, SDHI, and CTSU.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52318AGFL#30 and R5F52305AGFL#30, the R5F52317AGFL#50 delivers the optimal blend of memory resources (384 KB flash, 32 KB RAM, 8 KB data flash), full peripheral complement (CAN, USB host, SDHI, TSIP-Lite), and thermal rating (−40 to +105°C) for mid-tier industrial designs-without over-provisioning or feature reduction.

Availability

R5F52317AGFL#50 is available at Aetrix Electronics and suitable for industrial HMI panels, smart energy meters, USB-C gateways, and secure IoT sensor nodes requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F52317AGFL#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 enterprise markets.

The RX231 Group-including R5F52317AGFL#50-is engineered for high-integrity industrial control, featuring enhanced security (TSIP-Lite), real-time responsiveness (RXv2 core + ELC), and mixed-signal integration (ADC/DAC/CTSU/RTC) in compact packages.

FAQ

What is the maximum operating frequency and CPU performance of the R5F52317AGFL#50?

The R5F52317AGFL#50 operates at a maximum system clock frequency of 54 MHz, delivering 88.56 DMIPS. Its RXv2 CPU core features a 5-stage pipeline, variable-length instructions, and single-cycle execution for most instructions. The integrated single-precision FPU complies with IEEE 754 and enables deterministic floating-point math critical for motor control and sensor processing in the R5F52317AGFL#50.

Does the R5F52317AGFL#50 support USB host functionality, and what speed modes are available?

Yes, the R5F52317AGFL#50 integrates a full-featured USB 2.0 host/function/OTG module supporting full-speed (12 Mbps) and low-speed (1.5 Mbps) modes. It includes an internal transceiver and power supply for USB-eliminating external VCC_USB regulation when VCC is 4.0–5.5 V. Isochronous transfers and BC1.2 battery charging detection are also supported in the R5F52317AGFL#50.

What analog peripherals are included in the R5F52317AGFL#50, and how are they configured?

The R5F52317AGFL#50 includes a 12-bit 24-channel ADC (S12ADE) with 0.83 µs minimum conversion time, two 12-bit DACs (R12DAA), four analog comparators (CMPBa), and an integrated temperature sensor (TEMPSA). Sampling time is configurable per ADC channel, and both ADC and DAC support ELC-triggered operation. The R5F52317AGFL#50 also provides self-diagnostic and analog input disconnection detection functions for IEC 60730 compliance.

Is the R5F52317AGFL#50 qualified for extended temperature operation, and what package does it use?

Yes, the R5F52317AGFL#50 is rated for −40 to +105°C operation (G version) and is supplied in a 48-pin LFQFP package (PLQP0048KB-B), measuring 7 × 7 mm with 0.5 mm pitch. This package supports 30 general-purpose I/O pins (5-V tolerant), 8 external interrupt inputs, and dedicated pins for USB, CAN, SDHI, and capacitive touch-making the R5F52317AGFL#50 suitable for demanding industrial environments.

What security features does the R5F52317AGFL#50 provide, and how are they implemented?

The R5F52317AGFL#50 integrates TSIP-Lite-a hardware-accelerated security engine supporting AES-128/256 in ECB, CBC, GCM, and other modes; CMAC, XTS, CTR, and hash functions; and a true random number generator. Keys are protected against unauthorized access, and the R5F52317AGFL#50 includes mechanisms to prevent illicit copying. These features enable secure boot, encrypted firmware updates, and data-at-rest protection without software overhead.