Renesas R5F52318ADFP#30

Overview

R5F52318ADFP#30 from Renesas is a 32-bit RXv2 microcontroller with 54 MHz max operating frequency, 512 KB on-chip flash memory, 64 KB SRAM, and integrated FPU compliant with IEEE 754 single-precision floating-point standard. It features USB 2.0 full-speed host/function/OTG, CAN interface (ISO 11898-1), 24-channel 12-bit A/D converter (0.83 µs conversion time), and capacitive touch sensing unit supporting up to 24 self-capacitance keys - deployed in industrial HMI and smart sensor edge nodes.

For engineers reviewing the R5F52318ADFP#30 datasheet, R5F52318ADFP#30 pinout, R5F52318ADFP#30 application, or R5F52318ADFP#30 equivalent, key selection considerations include its 100-pin LFQFP package (PLQP0100KB-B), 54 MHz system clock with USB-dedicated PLL, RTC with battery backup support, TSIP-Lite encryption engine (AES-128/256), and IEC60730 safety-assist functions for A/D, IWDT, and RAM diagnostics.

Technical Context

The R5F52318ADFP#30 implements the RXv2 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code density. It integrates an on-chip FPU, 32-bit multiplier, 32-bit divider (2-cycle min), and memory protection unit (MPU) for deterministic real-time execution.

Its peripheral subsystem includes ELC for interrupt-free module linking, DTC for efficient data transfers, and MPC for flexible pin function assignment. Clock generation supports main (1–20 MHz), sub (32.768 kHz), and USB-dedicated PLL (4/6/8/12 MHz), enabling independent 54 MHz ICLK and 48 MHz USBCLK domains.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin Low-profile Quad Flat Package, 14 mm × 14 mm, 0.5 mm pitch, exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52318ADFP#30, R5F52318AGFP#30 offers extended temperature range without functional trade-offs, while R5F52317ADFP#30 reduces cost by removing SDHI and 128 KB flash - both retain identical pinout, clock architecture, and safety features.

Availability

R5F52318ADFP#30 is available at Aetrix Electronics and suitable for industrial HMI, smart sensor nodes, medical diagnostics, home appliance control, and USB-CAN gateway designs requiring stable component supply across multi-year production cycles.

Supply support for R5F52318ADFP#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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and IoT applications.

The RX231 Group, including R5F52318ADFP#30, is engineered for high-integration, safety-aware embedded systems demanding real-time performance, rich analog interfaces, and robust security - targeting industrial automation and intelligent consumer equipment.

FAQ

What is the maximum operating frequency and core architecture of the R5F52318ADFP#30?

The R5F52318ADFP#30 operates at a maximum frequency of 54 MHz using the 32-bit RXv2 CPU core. This core features a 5-stage pipeline, CISC Harvard architecture, variable-length instructions, and delivers 88.56 DMIPS. It includes an IEEE 754-compliant single-precision FPU, 32-bit multiplier, and 32-bit divider with minimum 2-cycle execution - all confirmed in Renesas datasheet R01DS0261EJ0120 Rev.1.20 Section 1.1.

Does the R5F52318ADFP#30 support USB and CAN interfaces simultaneously?

Yes, the R5F52318ADFP#30 integrates both USB 2.0 full-speed host/function/OTG and a CAN 2.0B module compliant with ISO 11898-1. These operate independently: USB supports 12 Mbps full-speed and BC1.2 charging, while CAN achieves up to 1 Mbps. Both are active concurrently, as verified in Table 1.2 (page 6) and Section 1.1 Communication Functions (page 4) of the official datasheet.

What are the memory resources available on the R5F52318ADFP#30?

The R5F52318ADFP#30 includes 512 KB of on-chip flash memory (with no-wait access up to 32 MHz), 64 KB of SRAM (no-wait at 54 MHz), and 8 KB of data flash rated for 1,000,000 program/erase cycles. All memory is accessible in single-chip mode, and flash supports background operation (BGO) for concurrent execution and programming - specifications confirmed in Table 1.1 (page 2) and Section 1.2 Product List (page 7).

Is the R5F52318ADFP#30 qualified for functional safety standards like IEC60730?

Yes, the R5F52318ADFP#30 includes dedicated hardware features to assist IEC60730 Class B compliance, including self-diagnostic support for the A/D converter, clock frequency accuracy measurement circuit (CAC), independent watchdog timer (IWDT), and RAM test assistance via the Data Operation Circuit (DOC). These are explicitly documented in the "Useful functions for IEC60730 compliance" section (page 1) and Section 1.1 (page 3) of the datasheet.

What package type and pin count does the R5F52318ADFP#30 use?

The R5F52318ADFP#30 uses the PLQP0100KB-B package: a 100-pin Low-profile Quad Flat Package with 14 mm × 14 mm body size, 0.5 mm pitch, and exposed thermal pad. This matches the "100-pin LFQFP" designation in Table 1.2 (page 6) and the product list entry on page 7 of R01DS0261EJ0120 Rev.1.20, confirming mechanical and thermal compatibility with standard 100-pin QFP footprints.