Renesas R5F52317AGND#40

Overview

R5F52317AGND#40 from Renesas is a 32-bit RXv2 microcontroller with 384 KB on-chip flash, 32 KB SRAM, and 8 KB data flash, operating at up to 54 MHz (88.56 DMIPS) with integrated FPU, 24-channel 12-bit ADC, dual 12-bit DAC, USB 2.0 full-speed host/function/OTG, CAN, capacitive touch sensing unit, and TSIP-Lite encryption engine. It targets industrial HMI, smart sensor nodes, and embedded control systems requiring real-time processing, secure firmware, and mixed-signal I/O.

For engineers reviewing the R5F52317AGND#40 datasheet, R5F52317AGND#40 pinout, R5F52317AGND#40 application, or R5F52317AGND#40 equivalent, this MCU delivers deterministic real-time execution, IEEE 754-compliant floating-point math, hardware-accelerated AES-128/256, and event-driven peripheral coordination via ELC-critical for battery-aware industrial gateways and functional-safety-compliant equipment.

Technical Context

The R5F52317AGND#40 implements the RXv2 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions, enabling ultra-compact code density and single-cycle instruction execution at 54 MHz. Its memory subsystem includes no-wait SRAM access, ROM accelerator-assisted flash execution, and background operation (BGO) for data flash programming.

Peripherals are orchestrated through the Event Link Controller (ELC), allowing timer-triggered ADC conversions, PWM waveform updates, and communication module activation without CPU intervention-enabling deep-sleep operation while maintaining responsive I/O timing. The integrated TSIP-Lite engine supports GCM, CBC, and CTR AES modes with true random number generation and key protection logic.

Key Specifications

Pinout & Package

PWQN0064KC-A is a 64-pin heat-sink exposed pad HWQFN package (9 × 9 mm, 0.5 mm pitch) with 47 general-purpose I/O pins, 5-V tolerant inputs, open-drain outputs, and configurable pull-up resistors. Thermal pad must be soldered to PCB ground for thermal management.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52318AGND#U0, R5F52317AGND#40 trades 128 KB flash and SDHI capability for tighter BOM control in USB-only edge devices; versus R5F52307AGND#U0, it adds essential CAN and USB interfaces without increasing footprint or thermal envelope.

Availability

R5F52317AGND#40 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor gateways, and functional-safety PLC modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F52317AGND#40 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, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX231 Group-including R5F52317AGND#40-is engineered for high-integrity industrial control, integrating real-time performance, security, and mixed-signal peripherals in compact packages optimized for extended-temperature operation.

FAQ

What is the maximum operating frequency and core type of the R5F52317AGND#40?

The R5F52317AGND#40 features a 32-bit RXv2 CPU core with a maximum operating frequency of 54 MHz, delivering 88.56 DMIPS. It uses a CISC Harvard architecture with a 5-stage pipeline and variable-length instructions, enabling efficient code density and deterministic real-time execution. The R5F52317AGND#40 achieves this performance across its full −40 to +105°C operating range without derating.

Does the R5F52317AGND#40 support USB device and host functionality?

Yes, the R5F52317AGND#40 integrates a USB 2.0 full-speed host/function/OTG module compliant with USB 2.0 specification, supporting 12 Mbps (full-speed) and 1.5 Mbps (low-speed) transfer rates. It includes an internal USB transceiver, VBUS detection, and on-chip USB power regulation-enabling operation without external VCC_USB supply when VCC is 4.0–5.5 V. The R5F52317AGND#40 supports isochronous transfers and BC1.2 battery charging negotiation.

What analog peripherals are included in the R5F52317AGND#40?

The R5F52317AGND#40 includes a 24-channel 12-bit S12ADE analog-to-digital converter with 0.83 µs minimum conversion time, two 12-bit R12DAA digital-to-analog converters with 0.4–AVCC0−0.5 V output range, a temperature sensor (TEMPSA), and two dual-channel analog comparators (CMPBa). All analog blocks support self-diagnostic and disconnection-detection functions required for IEC 60730 compliance. The R5F52317AGND#40 also provides per-channel sampling time configuration for the ADC.

Is the R5F52317AGND#40 qualified for extended temperature operation?

Yes, the R5F52317AGND#40 is a G-version device rated for −40 to +105°C operation, verified across its full electrical specification range. This qualification applies to all integrated peripherals-including the 54 MHz CPU, USB transceiver, CAN controller, and TSIP-Lite encryption engine-making it suitable for under-hood automotive auxiliary modules, industrial drives, and outdoor infrastructure equipment. The R5F52317AGND#40 uses the PWQN0064KC-A HWQFN package with exposed thermal pad for reliable thermal dissipation.

What security features does the R5F52317AGND#40 provide?

The R5F52317AGND#40 integrates TSIP-Lite, a hardware-trusted secure IP engine supporting AES-128/256 in ECB, CBC, GCM, CTR, and CMAC modes, plus SHA-256 hash and true random number generation. Key access is restricted by hardware access management logic, preventing unauthorized reads or writes. The R5F52317AGND#40 also includes memory protection unit (MPU), secure boot assist, and cryptographic acceleration-enabling secure firmware updates, TLS offload, and anti-tampering in industrial and IoT deployments.