Renesas R5F52315CGFM#30

Overview

R5F52315CGFM#30 from Renesas is a 32-bit RXv2 microcontroller with 54 MHz max operating frequency, 128 KB on-chip flash, 32 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 DAC channels, USB 2.0 full-speed host/function/OTG, CAN 2.0B, and capacitive touch sensing unit - deployed in industrial HMI and smart sensor nodes requiring deterministic real-time control and secure firmware execution.

For engineers reviewing the R5F52315CGFM#30 datasheet, R5F52315CGFM#30 pinout, R5F52315CGFM#30 application, or R5F52315CGFM#30 equivalent, this page delivers verified package mapping (64-pin LFQFP, PLQP0064KB-C), validated peripheral configuration (CAN + USB + CTSU enabled), confirmed low-power modes (deep sleep, software standby), and two field-tested alternative MCUs with documented functional alignment and known trade-offs in flash size and CAN support.

Technical Context

The R5F52315CGFM#30 belongs to the RX231 Group and implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions. It supports IEEE 754-compliant single-precision floating-point operations and includes a memory protection unit (MPU) for safety-critical code isolation.

Its clock system combines a main oscillator (1–20 MHz), sub-clock (32.768 kHz), PLL (4–12.5 MHz input), and USB-dedicated PLL - enabling independent 54 MHz ICLK and 48 MHz USBCLK. The ELC allows event-triggered peripheral operation without CPU intervention, supporting low-power synchronized module chaining during sleep.

Key Specifications

Pinout & Package

Package: 64-pin LFQFP (PLQP0064KB-C), 10 × 10 mm, 0.5 mm pitch, RoHS-compliant, lead-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52315CGFM#30, R5F52315ADFM#30 offers identical functionality at lower thermal grade, while R5F52316ADFM#30 provides scalable flash headroom without altering peripheral availability or pin compatibility - both preserve the same 64-pin LFQFP footprint and driver API.

Availability

R5F52315CGFM#30 is available at Aetrix Electronics and suitable for industrial HMI, smart sensor nodes, medical handhelds, and automated test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F52315CGFM#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, which includes R5F52315CGFM#30, was designed for cost-sensitive industrial and consumer applications demanding real-time performance, security, and mixed-signal integration - balancing high CPU throughput with low-power operation and robust peripheral sets.

FAQ

What is the maximum operating temperature specification for R5F52315CGFM#30?

R5F52315CGFM#30 is rated for operation from −40°C to +105°C (G-version). This extended temperature range enables deployment in harsh industrial environments such as motor drives, factory automation controllers, and outdoor instrumentation where ambient heat dissipation is constrained. The device maintains full functionality-including 54 MHz CPU operation, USB communication, and CAN bus integrity-across this entire range, as validated per Renesas' qualification testing.

Does R5F52315CGFM#30 support CAN FD or only classical CAN 2.0B?

R5F52315CGFM#30 supports only classical CAN 2.0B (ISO 11898-1), with data rates up to 1 Mbps and 16 message boxes. It does not implement CAN FD features such as flexible data-rate or extended payload length. The RSCAN module is fully compatible with legacy CAN networks and requires external transceivers (e.g., TJA1042) for physical layer interfacing. For CAN FD, engineers should consider higher-tier RX72M or RA6T2 families.

Can R5F52315CGFM#30 operate USB and CAN simultaneously without resource conflict?

Yes, R5F52315CGFM#30 supports concurrent USB 2.0 full-speed host/function/OTG and CAN 2.0B operation. Its clock system assigns independent PLLs - USB-dedicated PLL for 48 MHz USBCLK and main PLL for 54 MHz ICLK - eliminating timing contention. Peripheral modules use separate interrupt vectors and DMA channels (DMAC has four independent channels), allowing simultaneous data transfer on both interfaces without CPU arbitration overhead.

What debug interface does R5F52315CGFM#30 use, and is JTAG supported?

R5F52315CGFM#30 uses the FINE (Fast In-circuit Non-intrusive Emulator) interface for on-chip debugging and programming. It does not support standard JTAG (IEEE 1149.1); FINE operates over a 2-pin serial interface (FRESET# and FDATA) and is compatible with Renesas E2 studio and CS+ IDEs. Debug access requires a Renesas-compatible debugger (e.g., E2 Lite, E2 emulator), and SWD is not implemented.

Is the 8 KB data flash in R5F52315CGFM#30 capable of wear leveling and background erase?

Yes, the 8 KB on-chip data flash in R5F52315CGFM#30 supports background operation (BGO), allowing program/erase cycles to execute while the CPU runs application code. It is rated for 1,000,000 program/erase cycles (typical) and includes hardware-assisted wear leveling via the Flash Control Unit (FCU). No external EEPROM is needed for parameter storage, and FCU APIs in Renesas' FDL library manage sector management transparently.