Renesas R5F52318BGND#40

Overview

R5F52318BGND#40 from Renesas is a 32-bit RXv2 microcontroller with 54 MHz max operating frequency, 512 KB on-chip flash, 64 KB SRAM, and 8 KB data flash. It integrates USB 2.0 full-speed host/function/OTG, CAN 2.0B (1 Mbps), 24-channel 12-bit A/D converter (0.83 µs conversion), dual 12-bit D/A outputs, capacitive touch sensing (24 keys), and TSIP-Lite encryption engine (AES-128/256). It targets industrial HMI and connected sensor nodes requiring real-time control, secure communication, and low-power operation.

For engineers reviewing the R5F52318BGND#40 datasheet, R5F52318BGND#40 pinout, R5F52318BGND#40 application, or R5F52318BGND#40 equivalent, this page delivers verified technical context, package mapping to PWQN0064KC-A (9 × 9 mm HWQFN), validated pinout, key peripheral timing constraints, and two confirmed alternative parts for design flexibility in industrial temperature-grade MCU selection.

Technical Context

The R5F52318BGND#40 implements the RXv2 CPU core with IEEE 754-compliant 32-bit FPU, 88.56 DMIPS performance at 54 MHz, and memory protection unit (MPU). Its clock system supports independent domain clocks: ICLK (54 MHz system), PCLKA (54 MHz for MTU2a), PCLKD (54 MHz for S12AD), and BCLK (32 MHz for external bus).

Peripheral integration includes ELC for interrupt-free module linking, DTC for chain-transfer-capable data movement, and TSIP-Lite for AES-GCM/ECB/CBC with true random number generation. The device operates across −40 to +105°C and supports three low-power modes with LPT running during software standby using sub-clock or IWDT oscillator.

Key Specifications

Pinout & Package

PWQN0064KC-A is a 64-pin heat-sinked wettable flank QFN package (9 × 9 mm, 0.5 mm pitch) with exposed thermal pad. Pin numbering follows standard QFN convention (pin 1 at top-left corner, counterclockwise).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52318BGND#40, R5F52318AGND#U0 trades extended temperature rating for lower cost in milder environments, while R5F52317BGND#U0 reduces flash capacity and removes SDHI to meet tighter cost targets-both retain full USB/CAN/CTSU/TSIP-Lite functionality in the same 64-pin HWQFN footprint.

Availability

R5F52318BGND#40 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, secure firmware updaters, and motor control gateways requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F52318BGND#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 R5F52318BGND#40, was designed for cost-sensitive industrial applications demanding real-time performance, functional safety support (IEC60730), and integrated security-without sacrificing analog precision or communication flexibility.

FAQ

What is the maximum operating frequency and CPU architecture of the R5F52318BGND#40?

The R5F52318BGND#40 features a 32-bit RXv2 CPU core with a maximum operating frequency of 54 MHz, delivering 88.56 DMIPS performance. It includes an IEEE 754-compliant single-precision floating-point unit, memory protection unit (MPU), and 5-stage Harvard pipeline. This architecture enables deterministic real-time execution for industrial control tasks while supporting compact code density through variable-length instructions.

Does the R5F52318BGND#40 support both USB and CAN interfaces simultaneously?

Yes, the R5F52318BGND#40 integrates a USB 2.0 full-speed host/function/OTG module and a CAN 2.0B-compliant controller (RSCAN) on-chip. Both operate independently with dedicated clock domains-USB uses its own PLL (4/6/8/12 MHz), while CAN derives timing from the main or sub-clock. No external transceivers are required for basic operation, though CAN physical layer compliance needs an external CAN transceiver.

What package type and pin count does the R5F52318BGND#40 use?

The R5F52318BGND#40 is packaged in the PWQN0064KC-A: a 64-pin heat-sinked wettable flank QFN measuring 9 × 9 mm with 0.5 mm pitch and an exposed thermal pad. This package supports reflow soldering and provides robust thermal performance for industrial applications operating up to +105°C.

How many analog-to-digital converter channels does the R5F52318BGND#40 include, and what is its minimum conversion time?

The R5F52318BGND#40 includes a 24-channel 12-bit S12ADE analog-to-digital converter with a minimum conversion time of 0.83 µs per channel when ADCLK runs at 54 MHz. Sampling time is configurable per channel, and conversions can be triggered by software, timers (MTU/TPU), external signals, or the Event Link Controller (ELC) for synchronized multi-peripheral operation.

Is the R5F52318BGND#40 qualified for extended temperature operation, and what is its rated range?

Yes, the R5F52318BGND#40 is a G-version device rated for operation from −40°C to +105°C. This extended temperature grade is validated per Renesas' industrial qualification standards and supports deployment in harsh environments such as factory automation cabinets, outdoor sensor enclosures, and motor drive housings where ambient temperatures exceed +85°C.