Renesas R5F52316CGNE#20

Overview

R5F52316CGNE#20 from Renesas is a 32-bit RXv2 microcontroller with 54 MHz max operating frequency, 256 KB on-chip flash memory, 32 KB SRAM, and integrated 12-bit A/D converter (24 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 sensor nodes, and battery-powered control systems requiring real-time performance, secure firmware, and mixed-signal integration.

For engineers reviewing the R5F52316CGNE#20 datasheet, R5F52316CGNE#20 pinout, R5F52316CGNE#20 application, or R5F52316CGNE#20 equivalent, this MCU delivers deterministic 88.56 DMIPS execution, IEEE 754-compliant FPU, low-power RTC operation with battery backup, and ELC-driven event-triggered peripheral coordination - critical for deterministic embedded control and IEC60730-compliant safety designs.

Technical Context

The R5F52316CGNE#20 implements the RXv2 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code density. It integrates a memory protection unit (MPU), on-chip debugging circuit, and dual-clock domain support (ICLK up to 54 MHz, PCLKB up to 32 MHz) for safe peripheral operation.

Its peripheral set includes a 6-channel MTU2 timer with complementary PWM and phase counting, 6-channel TPU, 4-channel DTC, ELC for interrupt-free module linking, and dedicated USB-dedicated PLL generating 48 MHz for full-speed USB operation while maintaining 54 MHz system clock - enabling concurrent high-speed communication and real-time control.

Key Specifications

Pinout & Package

Package: PWQN0048KB-A - 48-pin HWQFN, 7 × 7 mm body, 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 R5F52316CGNE#20, R5F52316ADNE#U0 removes security and SDHI to reduce cost and complexity, while R5F52318BDND#U0 expands memory and adds SDHI at identical footprint - offering direct upgrade path for enhanced functionality without hardware redesign.

Availability

R5F52316CGNE#20 is available at Aetrix Electronics and suitable for industrial HMI, smart sensor nodes, and automotive body control modules requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for R5F52316CGNE#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 industrial, automotive, and IoT applications.

The RX231 Group - to which R5F52316CGNE#20 belongs - is engineered for high-integration embedded control with emphasis on real-time performance, functional safety (IEC60730), and secure connectivity in harsh environments.

FAQ

What is the maximum operating frequency and CPU performance of the R5F52316CGNE#20?

The R5F52316CGNE#20 operates at a maximum system clock frequency of 54 MHz using its RXv2 CPU core, delivering 88.56 DMIPS of performance. Its on-chip FPU supports IEEE 754-compliant single-precision floating-point operations, and the core features a 5-stage pipeline with variable-length instructions for high code density and deterministic execution - essential for real-time control tasks in the R5F52316CGNE#20.

Does the R5F52316CGNE#20 support USB and CAN interfaces simultaneously?

Yes, the R5F52316CGNE#20 integrates both USB 2.0 full-speed host/function/OTG (12 Mbps) and a CAN 2.0B controller compliant with ISO11898-1 (up to 1 Mbps). These operate independently using dedicated clock domains: USB uses a dedicated PLL generating 48 MHz, while CAN runs from the peripheral clock (PCLKB). This allows concurrent high-speed device communication and robust automotive-grade bus networking in the R5F52316CGNE#20.

What security features does the R5F52316CGNE#20 include?

The R5F52316CGNE#20 includes TSIP-Lite - a hardware-based security engine supporting AES-128/256 in GCM, CBC, and ECB modes, true random number generation, and secure key management. It also provides IEC60730 compliance assistance including A/D self-diagnostic, clock accuracy measurement (CAC), and RAM test support via the Data Operation Circuit (DOC) - all integral to the R5F52316CGNE#20's secure embedded design.

What is the operating temperature range and supply voltage specification for the R5F52316CGNE#20?

The R5F52316CGNE#20 is a G-version device rated for −40 to +105°C operation and supports single-supply operation from 1.8 V to 5.5 V. Its low-power design includes three sleep modes, a low-power timer (LPT) that runs during software standby, and RTC operation on battery backup - making it suitable for extended-temperature industrial and automotive applications where the R5F52316CGNE#20 must maintain reliability across wide environmental conditions.

How many analog input channels and what resolution does the A/D converter in the R5F52316CGNE#20 provide?

The R5F52316CGNE#20 integrates a 12-bit successive-approximation A/D converter (S12ADE) with 24 input channels and a minimum conversion time of 0.83 µs at 54 MHz ADCLK. Each channel supports programmable sampling time, and the module includes self-diagnostic and analog input disconnection detection - key capabilities for precision sensing and functional safety validation in the R5F52316CGNE#20.