Renesas R5F52315CGNE#20

Overview

R5F52315CGNE#20 from Renesas is a 32-bit RXv2 microcontroller with 54 MHz max operating frequency, 128 KB on-chip flash memory, 32 KB SRAM, and integrated 12-bit A/D converter (24 channels), 12-bit D/A converter (2 channels), USB 2.0 full-speed host/function/OTG, CAN interface, capacitive touch sensing unit (24 keys), and TSIP-Lite encryption engine. It targets industrial HMI, smart sensors, and battery-powered control systems requiring real-time performance, secure firmware, and mixed-signal integration.

For engineers reviewing the R5F52315CGNE#20 datasheet, R5F52315CGNE#20 pinout, R5F52315CGNE#20 application, or R5F52315CGNE#20 equivalent, key selection criteria include its 48-pin HWQFN package (7 × 7 mm, 0.5 mm pitch), −40 to +105°C operating range (G version), USB/CAN coexistence, 54 MHz deterministic timing, and support for IEC60730 safety diagnostics including A/D self-test and clock accuracy measurement.

Technical Context

The R5F52315CGNE#20 implements the RXv2 CPU core with IEEE 754-compliant 32-bit floating-point unit, 32-bit multiply-accumulate, and fast interrupt response (one-cycle instruction execution). Its clock system integrates PLL, USB-dedicated PLL (48 MHz), sub-clock oscillator (32.768 kHz), and CAC for real-time clock accuracy validation.

Peripheral architecture includes ELC for interrupt-free inter-module triggering, DTC for efficient data movement, and MPC for flexible pin assignment. The MCU supports three low-power modes-sleep, deep sleep, and software standby-with LPT active during standby and RTC operation on battery backup.

Key Specifications

Pinout & Package

48-pin HWQFN package (PWQN0048KB-A), 7 × 7 mm body, 0.5 mm pitch, exposed thermal pad. Pinout validated per Renesas R01DS0261EJ0120 Rev.1.20, Table 1.2 and Figure 1.1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52315CGNE#20, R5F52315ADNE#U0 removes CAN while retaining USB and touch capability at lower cost and temperature grade, whereas R5F52316ADNE#U0 retains all features and adds flash capacity for scalable firmware development - both require identical 48-pin HWQFN layout but differ in thermal qualification and memory scalability.

Availability

R5F52315CGNE#20 is available at Aetrix Electronics and suitable for industrial HMI, smart sensor nodes, secure gateways, and motor control interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F52315CGNE#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 management ICs for industrial, automotive, and IoT applications.

The RX231 Group, which includes R5F52315CGNE#20, was designed for cost-sensitive, high-integration embedded systems demanding real-time performance, security, and mixed-signal capability in compact packages.

FAQ

What is the maximum operating frequency and core type of the R5F52315CGNE#20?

The R5F52315CGNE#20 operates at a maximum frequency of 54 MHz using the 32-bit RXv2 CPU core. This core includes an IEEE 754-compliant floating-point unit, 32-bit multiply-accumulate instructions, and a 5-stage pipeline for deterministic real-time execution. Its 88.56 DMIPS rating reflects high computational throughput suitable for control and signal processing tasks within the R5F52315CGNE#20's integrated feature set.

Does the R5F52315CGNE#20 support CAN communication, and what standard does it comply with?

Yes, the R5F52315CGNE#20 includes one CAN module compliant with ISO11898-1, supporting data rates up to 1 Mbps and both standard and extended frame formats. This capability is confirmed in the R01DS0261EJ0120 datasheet Section 1.1 and Table 1.2, where CAN is explicitly listed for the RX231 Group in 48-pin packages like the R5F52315CGNE#20. It enables direct integration into industrial fieldbus networks without external CAN transceivers.

What is the package type and pin count of the R5F52315CGNE#20?

The R5F52315CGNE#20 uses a 48-pin HWQFN package designated PWQN0048KB-A, measuring 7 × 7 mm with 0.5 mm pitch and an exposed thermal pad. This package is verified in Renesas documentation (R01DS0261EJ0120, Page 5 and Table 1.2) and supports the full peripheral set of the RX231 Group at the 48-pin density, including USB, CAN, CTSU, and 24-channel A/D - all accessible within this compact footprint.

How does the R5F52315CGNE#20 support IEC60730 functional safety compliance?

The R5F52315CGNE#20 provides hardware-assisted IEC60730 Class B support through its built-in clock frequency accuracy measurement circuit (CAC), A/D converter self-diagnostic function, analog input disconnection detection, RAM test assistance using the DOC unit, and independent watchdog timer (IWDT) with dedicated oscillator. These features are documented in the R01DS0261EJ0120 datasheet Sections 1.1 and 1.2 and reduce software validation effort for safety-critical industrial control applications using the R5F52315CGNE#20.

What are the memory resources available on the R5F52315CGNE#20?

The R5F52315CGNE#20 integrates 128 KB of on-chip flash memory for program storage, 32 KB of SRAM for runtime variables 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 flash supports programming at 1.8 V. These values are specified in Table 1.1 (Page 2) and Table 1.3 (Page 7) of the R01DS0261EJ0120 datasheet for the R5F52315CGNE#20 orderable part number.