Renesas R5F52315CDFP#30

Overview

R5F52315CDFP#30 from Renesas is a 32-bit RXv2 core MCU operating at up to 54 MHz (88.56 DMIPS), featuring 128 KB on-chip flash, 32 KB SRAM, 8 KB data flash, 12-bit A/D converter (24 channels), and 12-bit D/A converter (2 channels). It integrates USB 2.0 full-speed host/function/OTG, CAN, SCI, I²C, RSPI, capacitive touch sensing (24 keys), RTC, TSIP-Lite encryption, and operates from 1.8–5.5 V across −40 to +85°C.

For engineers reviewing the R5F52315CDFP#30 datasheet, R5F52315CDFP#30 pinout, R5F52315CDFP#30 application, or R5F52315CDFP#30 equivalent, key selection criteria include its 100-pin LFQFP package, absence of SDHI and CAN modules, presence of USB and CTSU, and compatibility with industrial HMI, sensor gateway, and low-power embedded control designs requiring integrated analog I/O and secure firmware execution.

Technical Context

The R5F52315CDFP#30 belongs to the RX231 Group and uses the RXv2 CPU core with IEEE 754-compliant 32-bit FPU, 32-bit multiply-accumulate, and memory protection unit (MPU). Its clock system supports main oscillator (1–20 MHz), sub-clock (32.768 kHz), PLL (4–12.5 MHz input), and USB-dedicated PLL for concurrent 54 MHz system clock and 48 MHz USB clock.

It implements ELC for interrupt-free inter-module triggering, DTC for efficient data transfers, and TSIP-Lite for AES-128/256 encryption with true random number generation. The device lacks SDHI and CAN modules per Table 1.2, confirming its positioning as a cost-optimized variant within the RX231 family for applications not requiring those peripherals.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin LFQFP, 14 × 14 mm, 0.5 mm pitch, lead-free, RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52315ADFP#30, R5F52315CDFP#30 removes SDHI and CAN but retains USB, CTSU, and analog I/O-making it ideal for HMI or sensor nodes where those interfaces are unnecessary. Against R5F52316CDFP#30, it trades flash capacity for lower BOM cost while preserving identical peripheral functionality and footprint.

Availability

R5F52315CDFP#30 is available at Aetrix Electronics and suitable for industrial HMI, sensor gateway, and programmable logic controller I/O modules requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.

Supply support for R5F52315CDFP#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 industrial, automotive, and enterprise applications.

The RX231 Group targets cost-effective, high-integration 32-bit MCUs for industrial automation and consumer electronics, emphasizing USB connectivity, capacitive touch, analog precision, and security features like TSIP-Lite.

FAQ

What is the maximum operating frequency and CPU performance of the R5F52315CDFP#30?

The R5F52315CDFP#30 operates at a maximum frequency of 54 MHz and delivers 88.56 DMIPS using the RXv2 32-bit CPU core. Its architecture supports single-cycle instruction execution, IEEE 754-compliant floating-point operations, and 32-bit multiply-accumulate instructions - enabling real-time signal processing and control loop execution without performance bottlenecks. This performance level is confirmed in the R01DS0261EJ0120 datasheet Rev.1.20, Page 1.

Does the R5F52315CDFP#30 include CAN or SD host interface functionality?

No, the R5F52315CDFP#30 does not include CAN or SD host interface (SDHI) modules. Per Table 1.2 in the R01DS0261EJ0120 datasheet, these functions are explicitly marked "Not supported" for the RX231 Group in the 100-pin LFQFP package variant. The R5F52315CDFP#30 retains USB 2.0, SCI, I²C, RSPI, CTSU, and analog converters - making it suitable for applications where CAN or SD card interfacing is unnecessary.

What are the memory resources available on the R5F52315CDFP#30?

The R5F52315CDFP#30 integrates 128 KB of on-chip flash memory for program storage, 32 KB of SRAM for runtime data and stack, and 8 KB of data flash rated for 1,000,000 program/erase cycles. All memory operates without wait states at 54 MHz, and the data flash supports Background Operation (BGO), allowing concurrent code execution and non-volatile parameter updates - critical for robust field-deployed firmware.

Is the R5F52315CDFP#30 compatible with Renesas' E2 studio and CS+ development tools?

Yes, the R5F52315CDFP#30 is fully supported by Renesas' E2 studio IDE and CS+ integrated development environment. These tools provide debugging via FINE interface, flash programming, peripheral configuration wizards, and RX-specific compiler optimization. Support is documented in Renesas' RX Family Tool Support Guide (R01TL0097EJ0200), confirming compatibility for all RX231 Group devices including the R5F52315CDFP#30.

What is the operating temperature range and supply voltage specification for the R5F52315CDFP#30?

The R5F52315CDFP#30 is rated for an operating temperature range of −40 to +85°C (D version) and supports a single supply voltage from 1.8 V to 5.5 V. This wide voltage range enables direct connection to 3.3 V or 5 V systems and simplifies power design in battery-operated or mixed-voltage industrial equipment - as specified in Table 1.1 and Table 1.3 of the R01DS0261EJ0120 datasheet.