Renesas R5F52318BGFP#30

Overview

R5F52318BGFP#30 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 a single-precision IEEE 754 FPU, 12-bit 24-channel ADC (0.83 µs conversion), dual 12-bit DACs, USB 2.0 full-speed host/function/OTG, CAN 2.0B, SD host interface, capacitive touch sensing unit (24 keys), and TSIP-Lite encryption engine. It targets industrial HMI and smart sensor nodes requiring real-time control, secure connectivity, and low-power operation across −40 to +105°C.

For engineers reviewing the R5F52318BGFP#30 datasheet, R5F52318BGFP#30 pinout, R5F52318BGFP#30 application, or R5F52318BGFP#30 equivalent, key selection criteria include its 100-pin LFQFP package, G-grade temperature rating, integrated USB/CAN/SDHI peripherals, hardware AES-128/256 acceleration, and support for IEC60730 safety diagnostics - all confirmed in the official R01DS0261EJ0120 Rev.1.20 datasheet.

Technical Context

The R5F52318BGFP#30 belongs to the RX231 Group and implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions. It supports 88.56 DMIPS at 54 MHz and includes on-chip memory protection (MPU), fast interrupt response, and CISC instruction set with DSP extensions (32-bit MAC, 16-bit MSUB) and IEEE 754-compliant FPU.

Its clock system features a PLL for 54 MHz system clock and dedicated USB PLL for 48 MHz operation, alongside sub-clock RTC oscillator (32.768 kHz), low-speed IWDT oscillator, and clock accuracy measurement circuit (CAC). Power management includes three low-power modes, software standby with LPT timer, and voltage detection circuits with 14-level programmable thresholds.

Key Specifications

Pinout & Package

Package: 100-pin Low-Profile Quad Flat Package (LFQFP), PLQP0100KB-B, 14 × 14 mm body, 0.5 mm pitch, exposed pad (thermal pad not electrically connected).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52318BGFP#30, R5F52318AGFP#30 trades extended temperature support for lower cost, while R5F52317BGFP#30 reduces flash capacity without affecting real-time performance or peripheral capability - both retain identical pinout, clocking, and safety features.

Availability

R5F52318BGFP#30 is available at Aetrix Electronics and suitable for industrial HMI, smart sensor nodes, secure IoT gateways, and motor control interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F52318BGFP#30 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 R5F52318BGFP#30, was designed for high-integration industrial applications demanding real-time responsiveness, functional safety support, and rich connectivity - especially where USB, CAN, SD, and capacitive touch coexist in compact form factors.

FAQ

What is the maximum operating frequency and core type of the R5F52318BGFP#30?

The R5F52318BGFP#30 operates at a maximum frequency of 54 MHz using the 32-bit RXv2 CPU core. This core delivers 88.56 DMIPS performance and includes a 5-stage pipeline, variable-length instructions, and hardware support for floating-point (IEEE 754) and DSP operations. Its architecture enables deterministic real-time execution required for industrial control and communication protocols.

Does the R5F52318BGFP#30 support USB and CAN interfaces simultaneously?

Yes, the R5F52318BGFP#30 integrates both USB 2.0 full-speed host/function/OTG and a CAN 2.0B module (ISO 11898-1 compliant) on-chip. These operate independently with dedicated clock domains: USB uses a dedicated PLL for 48 MHz operation, while CAN runs at up to 1 Mbps using the system clock. No external transceivers are required for basic functionality, though physical layer drivers must be added per application.

What is the temperature grade and package type of the R5F52318BGFP#30?

The R5F52318BGFP#30 is a G-grade device rated for −40 to +105°C operation and housed in a 100-pin LFQFP package (PLQP0100KB-B), measuring 14 × 14 mm with 0.5 mm pitch. This package includes an exposed thermal pad and supports reflow soldering per JEDEC J-STD-020. The G-grade rating makes it suitable for under-hood automotive auxiliary systems and harsh industrial environments.

How much on-chip memory does the R5F52318BGFP#30 provide?

The R5F52318BGFP#30 includes 512 KB of on-chip flash memory for program storage, 64 KB of SRAM with zero-wait-state access at 54 MHz, and 8 KB of data flash rated for 1,000,000 program/erase cycles. Flash supports background operation (BGO), allowing code execution during programming, and is programmable at 1.8 V - enabling in-system updates without voltage boosters.

What security and safety features are built into the R5F52318BGFP#30?

The R5F52318BGFP#30 integrates TSIP-Lite for hardware-accelerated AES-128/256 encryption (GCM/ECB/CBC), a true random number generator, and IEC60730-compliant safety assist functions - including RAM test via Data Operation Circuit (DOC), A/D input disconnection detection, clock accuracy measurement (CAC), and independent watchdog timer (IWDT) self-check. These features reduce certification effort for Class B safety applications.