Renesas R5F52315CGND#20

Overview

R5F52315CGND#20 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 FPU (IEEE 754), 12-bit 24-channel ADC (0.83 µs conversion), two 12-bit DAC channels, capacitive touch sensing (24 keys), USB 2.0 full-speed host/function/OTG, CAN 2.0B, and TSIP-Lite encryption. It targets industrial HMI and sensor gateway applications requiring real-time control, secure communication, and low-power operation across −40 to +105°C.

For engineers reviewing the R5F52315CGND#20 datasheet, R5F52315CGND#20 pinout, R5F52315CGND#20 application, or R5F52315CGND#20 equivalent, key selection considerations include its 64-pin HWQFN (PWQN0064KC-A) package, G-grade temperature rating (−40 to +105°C), absence of SDHI and CAN support in this variant, and compatibility with Renesas' RX231 Group toolchain and E2 studio IDE.

Technical Context

The R5F52315CGND#20 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions-delivering 88.56 DMIPS at 54 MHz. It includes on-chip memory protection (MPU), fast interrupt response, and CISC instruction set with 75 base instructions plus DSP and floating-point extensions.

Its clock system supports main (1–20 MHz), sub-clock (32.768 kHz), and on-chip oscillators, with PLL-derived ICLK up to 54 MHz and USB-dedicated PLL for 48 MHz operation. Power management includes three low-power modes, LPT timer active during software standby, and voltage detection circuits with configurable thresholds.

Key Specifications

Pinout & Package

Packaged in a 64-pin HWQFN (PWQN0064KC-A), the R5F52315CGND#20 features a 9 × 9 mm body with 0.5 mm pitch and exposed thermal pad. Pin functions are configured via the Multi-function Pin Controller (MPC), supporting flexible I/O assignment including 5-V tolerant inputs, open-drain outputs, and pull-up resistors.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52315CGND#20, the R5F52315ADND#U0 offers identical functionality at lower temperature rating and cost, while R5F52316CGND#U0 extends flash capacity and adds SDHI-making it preferable for data-logging applications where USB alone is insufficient.

Availability

R5F52315CGND#20 is available at Aetrix Electronics and suitable for industrial HMI, smart sensor gateways, secure IoT endpoints, and USB-C battery charger controllers requiring stable component supply across extended temperature ranges.

Supply support for R5F52315CGND#20 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, and power solutions for automotive, industrial, and IoT markets.

The RX231 Group-including R5F52315CGND#20-is designed for high-integration, secure, and energy-efficient industrial control and human-machine interface applications demanding real-time performance and functional safety support.

FAQ

What is the maximum operating frequency and core type of the R5F52315CGND#20?

The R5F52315CGND#20 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 single-precision floating-point unit compliant with IEEE 754. Its 5-stage pipeline and variable-length instruction set enable efficient code density and deterministic real-time execution critical for industrial control tasks handled by the R5F52315CGND#20.

Does the R5F52315CGND#20 support CAN or SD host interface?

No, the R5F52315CGND#20 does not include CAN or SD host interface (SDHI) functionality. According to Table 1.2 of the datasheet, these modules are explicitly marked as "Not supported" for the 64-pin HWQFN variants in the RX231 Group, including R5F52315CGND#20. Engineers requiring CAN must select an RX230 Group part (e.g., R5F52306ADFP#30) or upgrade to a 100-pin RX231 variant like R5F52318AGFP#30 to access CAN and SDHI in the same family as R5F52315CGND#20.

What package and thermal specifications apply to the R5F52315CGND#20?

The R5F52315CGND#20 uses the PWQN0064KC-A package: a 64-pin HWQFN measuring 9 × 9 mm with 0.5 mm pitch and an exposed thermal pad. It is rated for operation from −40 to +105°C (G-grade), making it suitable for demanding industrial environments. The datasheet confirms this package and temperature range in Table 1.4 under "G Version" listings, distinguishing it from D-grade (−40 to +85°C) variants such as R5F52315ADND#U0-both share identical pinout but differ in thermal qualification and screening.

How many ADC and DAC channels does the R5F52315CGND#20 integrate?

The R5F52315CGND#20 integrates one 12-bit S12ADE analog-to-digital converter with 24 input channels and two independent 12-bit R12DAA digital-to-analog converters. The ADC achieves a minimum conversion time of 0.83 µs per channel when ADCLK runs at 54 MHz, and supports per-channel sampling time configuration. The DACs output 0.4 V to AVCC0 − 0.5 V and are used for precision reference generation or analog actuator control in systems built around the R5F52315CGND#20.

Is USB functionality available on the R5F52315CGND#20, and what modes does it support?

Yes, the R5F52315CGND#20 includes a full-featured USB 2.0 module supporting host, function, and On-The-Go (OTG) modes at full-speed (12 Mbps) and low-speed (1.5 Mbps). It supports isochronous transfers and Battery Charging Specification v1.2 (BC1.2). An internal USB regulator allows operation without external VCC_USB supply when VCC is between 4.0 V and 5.5 V-enabling simplified power design in USB-centric applications built with the R5F52315CGND#20.