Renesas R5F52306AGNE#20

Overview

R5F52306AGNE#20 from Renesas is a 32-bit RXv2 microcontroller operating at up to 54 MHz, featuring an integrated IEEE 754-compliant FPU, 256 KB on-chip flash, 32 KB SRAM, and 8 KB data flash. It delivers 88.56 DMIPS and supports real-time control in industrial HMI and sensor-edge applications requiring deterministic timing, low-power operation, and secure firmware updates.

For engineers reviewing the R5F52306AGNE#20 datasheet, R5F52306AGNE#20 pinout, R5F52306AGNE#20 application, or R5F52306AGNE#20 equivalent, this MCU provides verified support for USB 2.0 full-speed device mode, CAN 2.0B (1 Mbps), 24-channel 12-bit ADC with 0.83 µs conversion, dual 12-bit DAC outputs, capacitive touch sensing (up to 24 keys), and TSIP-Lite hardware encryption - all within a 48-pin HWQFN package rated for −40 to +105°C.

Technical Context

The R5F52306AGNE#20 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code. Its clock system integrates PLL, USB-dedicated PLL (4/6/8/12 MHz), sub-clock oscillator (32.768 kHz), and CAC for frequency accuracy measurement - allowing independent ICLK (54 MHz), PCLKA/B/D (up to 54/32/54 MHz), and BCLK/FCLK (32 MHz) domains.

Peripheral coordination is managed via ELC, enabling event-triggered module activation without CPU intervention - critical for low-power operation. The MCU includes MPU, on-chip debugging (FINE interface), and IEC60730-compliant self-test features for A/D, IWDT, clock accuracy, and RAM, confirming suitability for functional safety-aware designs.

Key Specifications

Pinout & Package

PWQN0048KB-A is a 48-pin wettable flank QFN package (7 × 7 mm, 0.5 mm pitch) with exposed thermal pad, optimized for automated optical inspection and thermal performance in space-constrained industrial modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52306AGNE#20, R5F52305AGNE#U0 reduces code storage but retains identical security and analog features, while R5F52316AGNE#U0 adds SDHI and external bus capability - making it suitable for data-logging gateways where R5F52306AGNE#20 serves best in compact, USB/CAN-focused edge nodes.

Availability

R5F52306AGNE#20 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, motor control gateways, and secure USB adapters requiring stable component supply across extended temperature ranges.

Supply support for R5F52306AGNE#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 RX230 Group - including R5F52306AGNE#20 - is engineered for cost-sensitive, high-reliability industrial applications demanding real-time performance, functional safety support, and integrated security without external co-processors.

FAQ

What is the maximum operating frequency and CPU performance of the R5F52306AGNE#20?

The R5F52306AGNE#20 operates at a maximum system clock frequency of 54 MHz using its RXv2 CPU core, delivering 88.56 DMIPS. This performance level enables real-time execution of complex control algorithms, USB protocol stacks, and sensor fusion tasks without external acceleration. The core supports single-cycle instruction execution for most operations and includes a hardware divider with two-cycle minimum latency.

Does the R5F52306AGNE#20 support USB device functionality, and what speed modes are available?

Yes, the R5F52306AGNE#20 integrates a full-speed USB 2.0 device controller compliant with USB Specification Rev. 2.0, supporting 12 Mbps data transfer. It also implements BC1.2 battery charging detection and provides internal VBUS sensing. The USB transceiver operates without external components when VCC is 4.0–5.5 V, and the R5F52306AGNE#20 supports CDC ACM and HID class implementations out of the box.

What analog peripherals are included in the R5F52306AGNE#20, and how are they configured?

The R5F52306AGNE#20 includes a 24-channel 12-bit successive-approximation ADC (S12ADE) with 0.83 µs minimum conversion time at 54 MHz ADCLK, two 12-bit DAC channels (R12DAA), two analog comparators (CMPBa), and an on-chip temperature sensor (TEMPSA). ADC sampling time is configurable per channel, and DAC outputs range from 0.4 V to AVCC0 − 0.5 V. All analog functions are accessible via dedicated pins mapped in the PWQN0048KB-A package.

Is the R5F52306AGNE#20 qualified for extended temperature operation, and what is its industrial rating?

Yes, the R5F52306AGNE#20 is the G-version part, rated for operation from −40 to +105°C ambient temperature. This qualification meets industrial-grade requirements for deployment in harsh environments such as factory automation controllers, outdoor sensor enclosures, and motor drive cabinets where thermal stability and long-term reliability are critical. The part uses the PWQN0048KB-A HWQFN package with wettable flanks for enhanced solder joint inspection.

What security features does the R5F52306AGNE#20 provide through TSIP-Lite?

The R5F52306AGNE#20 integrates TSIP-Lite, offering AES-128/256 encryption in ECB, CBC, GCM, and CTR modes; CMAC and XTS authentication; SHA-256 hash generation; and a true random number generator. Key management prevents unauthorized access to the encryption engine, and keys are protected against physical and side-channel attacks. These capabilities enable secure boot, firmware update signing, and encrypted sensor data packaging within the R5F52306AGNE#20 itself.