Renesas R5F52306AGND#20

Overview

R5F52306AGND#20 from Renesas is a 32-bit RXv2 core microcontroller operating at up to 54 MHz (88.56 DMIPS), featuring 256 KB on-chip flash, 32 KB SRAM, 8 KB data flash, and integrated 12-bit A/D (24 channels, 0.83 µs conversion) and 12-bit D/A (2 channels). It supports USB 2.0 full-speed host/function/OTG, CAN, SCI, I²C, RSPI, and capacitive touch sensing - deployed in industrial HMI and smart sensor nodes requiring deterministic real-time control and secure firmware execution.

For engineers reviewing the R5F52306AGND#20 datasheet, R5F52306AGND#20 pinout, R5F52306AGND#20 application, or R5F52306AGND#20 equivalent, this MCU delivers verified FPU-accelerated math, IEC60730-compliant self-test functions (A/D, IWDT, RAM), hardware encryption (TSIP-Lite AES-128/256), and dual-clock domain operation (ICLK/PCLK) for mixed-signal timing-critical systems.

Technical Context

The R5F52306AGND#20 implements the RXv2 CISC Harvard architecture with 5-stage pipeline, variable-length instructions, and on-chip MPU - enabling deterministic interrupt latency and memory protection for safety-aware firmware. Its clock system integrates PLL, USB-dedicated PLL (48 MHz), sub-clock RTC oscillator (32.768 kHz), and CAC for frequency accuracy validation.

Peripheral coordination is managed via Event Link Controller (ELC), allowing timer-triggered A/D conversions and module-to-module event chaining without CPU intervention. The device includes TSIP-Lite for AES-GCM/CBC encryption, true random number generation, and key protection - meeting embedded security requirements without external co-processors.

Key Specifications

Pinout & Package

Packaged in 64-pin HWQFN (PWQN0064KC-A), 9 × 9 mm, 0.5 mm pitch, with exposed thermal pad - optimized for compact industrial PCB layouts and thermal dissipation in enclosed enclosures.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52305ADND#U0, R5F52306AGND#20 adds 8 KB data flash for reliable parameter storage; compared with R5F52316ADND#U0, it removes SDHI and RTC - simplifying design where those peripherals are unused while retaining full USB/CAN/CTSU functionality.

Availability

R5F52306AGND#20 is available at Aetrix Electronics and suitable for industrial HMI, smart sensor nodes, USB-CAN bridges, and secure firmware gateways requiring stable component supply across extended temperature and long production lifecycles.

Supply support for R5F52306AGND#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 markets.

The RX230 Group - including R5F52306AGND#20 - was designed for cost-sensitive, high-integration industrial control applications demanding real-time performance, functional safety, and embedded security without external co-processors.

FAQ

What is the maximum operating frequency and CPU architecture of the R5F52306AGND#20?

The R5F52306AGND#20 operates at a maximum frequency of 54 MHz using the 32-bit RXv2 CPU core. This core features a 5-stage pipeline, variable-length instructions, on-chip FPU compliant with IEEE 754, and delivers 88.56 DMIPS. Its Harvard architecture and memory protection unit (MPU) support deterministic real-time execution and secure memory partitioning in the R5F52306AGND#20.

Does the R5F52306AGND#20 include hardware encryption capabilities?

Yes, the R5F52306AGND#20 integrates TSIP-Lite - a hardware security module supporting AES-128 and AES-256 in ECB, CBC, GCM, and other modes, along with a true random number generator and secure key management. These features enable authenticated firmware updates and encrypted communication in the R5F52306AGND#20 without external crypto ICs.

What analog peripherals are integrated into the R5F52306AGND#20?

The R5F52306AGND#20 includes a 12-bit A/D converter (S12ADE) with 24 input channels and 0.83 µs minimum conversion time, a 12-bit D/A converter (R12DAA) with two channels, an on-chip temperature sensor (TEMPSA), and two analog comparators (CMPBa). These are directly usable for closed-loop control, sensor signal conditioning, and threshold detection in the R5F52306AGND#20.

Which communication interfaces does the R5F52306AGND#20 support?

The R5F52306AGND#20 supports USB 2.0 full-speed host/function/OTG, CAN 2.0B (1 Mbps), seven SCI channels (asynchronous/clock-synchronous/smart card), one I²C bus interface, one RSPI, one serial sound interface (SSI), and one IrDA interface (via SCI5). All are accessible in the R5F52306AGND#20's 64-pin HWQFN package without multiplexing conflicts.

What is the operating temperature range and package type of the R5F52306AGND#20?

The R5F52306AGND#20 is rated for −40 to +105°C (G version) and is supplied in a 64-pin HWQFN package (PWQN0064KC-A), measuring 9 × 9 mm with 0.5 mm pitch and an exposed thermal pad. This package supports high-density PCB layouts and efficient thermal management in the R5F52306AGND#20's target industrial applications.