Renesas R5F52317ADND#40

Overview

R5F52317ADND#40 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 12-bit A/D (24 channels), 12-bit D/A (2 channels), USB 2.0 full-speed host/function/OTG, CAN, capacitive touch sensing unit (24 keys), FPU, and TSIP-Lite encryption engine. It targets industrial HMI, smart sensor nodes, and embedded control systems requiring real-time performance, secure firmware, and mixed-signal integration.

For engineers reviewing the R5F52317ADND#40 datasheet, R5F52317ADND#40 pinout, R5F52317ADND#40 application, or R5F52317ADND#40 equivalent, this MCU delivers deterministic 88.56 DMIPS throughput, sub-1 µs ADC conversion, hardware-accelerated AES-128/256, and ELC-driven low-power peripheral coordination - critical for battery-aware industrial gateways and functional-safety-compliant edge devices.

Technical Context

The R5F52317ADND#40 implements the RXv2 CISC Harvard architecture with 5-stage pipeline, variable-length instructions, and on-chip MPU for memory protection. Its clock system integrates PLL, USB-dedicated PLL (48 MHz), sub-clock oscillator (32.768 kHz), and CAC for accuracy monitoring - enabling precise RTC, LPT operation during software standby, and synchronized peripheral clocks (ICLK=54 MHz, PCLKA/PCLKD=54 MHz, PCLKB/BCLK/FCLK=32 MHz).

Peripheral coordination is handled by the Event Link Controller (ELC), supporting 61 event types and direct module triggering without CPU intervention. The MCU supports IEC60730 self-test via DOC-assisted RAM test, A/D disconnection detection, IWDT clock independence, and TSIP-Lite key isolation - fulfilling Class B safety requirements in motor drives and appliance controllers.

Key Specifications

Pinout & Package

PWQN0064KC-A is a 64-pin, 9 × 9 mm, 0.5 mm pitch HWQFN package with exposed thermal pad (EP). Pinout conforms to Renesas RX231 Group 64-pin mapping; all pins support 5-V tolerant input, open-drain output, and programmable pull-up/pull-down via MPC.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52317BDND#40 and R5F52307ADND#40, the R5F52317ADND#40 provides optimal balance of USB 2.0 OTG, capacitive touch, and encryption features without CAN/SDHI overhead - ideal for human-interface-focused industrial controllers where peripheral count and security outweigh bus expansion needs.

Availability

R5F52317ADND#40 is available at Aetrix Electronics and suitable for industrial HMI, smart sensor nodes, and embedded control systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for production programs.

Supply support for R5F52317ADND#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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX231 Group - including R5F52317ADND#40 - was designed for industrial and consumer applications demanding real-time responsiveness, functional safety compliance (IEC60730), and integrated security, with emphasis on HMI, sensor fusion, and secure connectivity.

FAQ

What is the maximum operating frequency and core architecture of the R5F52317ADND#40?

The R5F52317ADND#40 operates at a maximum frequency of 54 MHz using the 32-bit RXv2 CPU core. This core implements a CISC Harvard architecture with 5-stage pipeline, variable-length instructions, and ultra-compact code density. It delivers 88.56 DMIPS performance and includes an IEEE 754-compliant single-precision FPU, 32×32→64-bit multiplier, and 32÷32 divider with minimum two-cycle execution - enabling deterministic real-time control in the R5F52317ADND#40.

Does the R5F52317ADND#40 support USB functionality, and what modes are available?

Yes, the R5F52317ADND#40 integrates a USB 2.0 host/function/OTG module compliant with full-speed (12 Mbps) and low-speed (1.5 Mbps) operation. It supports isochronous transfers, Battery Charging Specification 1.2 (BC1.2), and internal USB power regulation - allowing VCC_USB to be unconnected when VCC is 4.0–5.5 V. This makes the R5F52317ADND#40 suitable for portable industrial tools, firmware update dongles, and dual-role peripheral interfaces.

What analog peripherals are integrated into the R5F52317ADND#40?

The R5F52317ADND#40 includes a 12-bit S12ADE analog-to-digital converter with 24 input channels and 0.83 µs minimum conversion time at 54 MHz ADCLK, plus a 12-bit R12DAA digital-to-analog converter with two output channels (0.4–AVCC0−0.5 V range). It also integrates a temperature sensor (TEMPSA), two analog comparators (CMPBa), and a capacitive touch sensing unit (CTSU) supporting up to 24 self-capacitance keys - all accessible without external signal conditioning in the R5F52317ADND#40.

Is the R5F52317ADND#40 qualified for functional safety standards like IEC60730?

Yes, the R5F52317ADND#40 includes hardware-assisted features for IEC60730 Class B compliance: self-diagnostic A/D converter, clock frequency accuracy measurement circuit (CAC), independent watchdog timer (IWDT) with dedicated oscillator, RAM test assistance via Data Operation Circuit (DOC), and analog input disconnection detection. These capabilities reduce external diagnostic circuitry and accelerate certification for household appliances and industrial controls using the R5F52317ADND#40.

What package type and environmental rating does the R5F52317ADND#40 use?

The R5F52317ADND#40 is supplied in the PWQN0064KC-A package: a 64-pin HWQFN with 9 × 9 mm body, 0.5 mm pitch, and exposed thermal pad. It is rated for industrial temperature range (−40 to +85°C) and operates from a single 1.8–5.5 V supply. This compact, thermally efficient package supports high-density PCB layouts in space-constrained applications such as handheld testers and modular I/O nodes based on the R5F52317ADND#40.