Renesas R5F52306ADLF#U0

Overview

R5F52306ADLF#U0 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, and capacitive touch sensing unit - deployed in industrial HMI panels requiring real-time control, secure firmware updates, and low-power operation.

For engineers reviewing the R5F52306ADLF#U0 datasheet, R5F52306ADLF#U0 pinout, R5F52306ADLF#U0 application, or R5F52306ADLF#U0 equivalent, this page delivers verified technical context, package mapping to PWQN0064KC-A (9 × 9 mm, 0.5 mm pitch QFN), confirmed peripheral availability (USB, CAN, CTSU, RTC), and validated alternative options for migration or sourcing continuity.

Technical Context

The R5F52306ADLF#U0 implements the RXv2 CPU core with IEEE 754-compliant 32-bit single-precision FPU, 88.56 DMIPS performance at 54 MHz, and memory protection unit (MPU) for safety-critical execution. It supports little-endian or big-endian data arrangement and executes instructions in one cycle at maximum clock speed.

Its clock system integrates main (1–20 MHz), sub-clock (32.768 kHz), and USB-dedicated PLL circuits, enabling independent ICLK (54 MHz), PCLKA (54 MHz), PCLKD (54 MHz), and BCLK (32 MHz) domains. The ELC allows event-triggered module activation without CPU intervention, supporting low-power operation during sleep modes.

Key Specifications

Pinout & Package

Packaged in 64-pin HWQFN (PWQN0064KC-A), 9 × 9 mm body, 0.5 mm pitch, exposed thermal pad, RoHS-compliant, suitable for high-density PCB layouts with efficient heat dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52306ADLF#U0, R5F52306ADND#U0 offers identical electrical and functional behavior in a physically larger QFN package, while R5F52316ADND#U0 extends capability with SDHI and RTC - both require validation of pin compatibility and thermal design, but neither is pin-to-pin interchangeable without layout review.

Availability

R5F52306ADLF#U0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart energy meters, automotive diagnostic tools, and PLC I/O modules requiring stable component supply across multi-year production cycles.

Supply support for R5F52306ADLF#U0 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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX230 Group targets cost-sensitive industrial applications needing USB, CAN, capacitive touch, and functional safety support - designed for seamless integration into HMI, metering, and control systems without external co-processors.

FAQ

What is the maximum operating frequency and CPU architecture of the R5F52306ADLF#U0?

The R5F52306ADLF#U0 operates at a maximum frequency of 54 MHz using the 32-bit RXv2 CPU core, delivering 88.56 DMIPS performance. It features a 5-stage pipeline, variable-length instruction set, and IEEE 754-compliant floating-point unit - all confirmed in the official R01DS0261EJ0120 datasheet. This architecture enables deterministic real-time execution for motor control and industrial communication stacks.

Does the R5F52306ADLF#U0 include USB and CAN interfaces, and what standards do they support?

Yes, the R5F52306ADLF#U0 integrates a USB 2.0 full-speed host/function/OTG module compliant with BC1.2 battery charging specification and a CAN module (RSCAN) compliant with ISO11898-1 up to 1 Mbps. Both peripherals are fully functional in the R5F52306ADLF#U0 as documented in Table 1.2 of the datasheet, with no feature reduction versus higher-memory RX231 variants.

What package type and pin count does the R5F52306ADLF#U0 use?

The R5F52306ADLF#U0 uses a 64-pin HWQFN package designated PWQN0064KC-A: 9 × 9 mm body, 0.5 mm pitch, with an exposed thermal pad. This is explicitly listed in Table 1.3 (D Version product list) and confirmed in the "Packages" section on page 5 of R01DS0261EJ0120. It is distinct from the 5×5 mm WFLGA (PWLG0064KA-A) used by other RX230 variants.

Is the R5F52306ADLF#U0 supported for IEC 60730 safety compliance, and which built-in features assist certification?

Yes, the R5F52306ADLF#U0 includes IEC 60730-compliant self-test features: A/D converter disconnection detection, clock frequency accuracy measurement circuit (CAC), independent watchdog timer (IWDT), RAM test assistance via DOC, and voltage monitoring circuits. These are explicitly listed under "Useful functions for IEC60730 compliance" on page 1 of the datasheet and apply to all RX230 Group devices including R5F52306ADLF#U0.

What is the flash and SRAM capacity of the R5F52306ADLF#U0, and is background programming supported?

The R5F52306ADLF#U0 contains 256 KB of on-chip flash memory and 32 KB of SRAM. Its 8 KB data flash supports Background Operation (BGO), allowing program/erase cycles while application code executes - confirmed in the "On-chip data flash memory" section (page 1) and Table 1.1 (page 2) of R01DS0261EJ0120. This enables safe over-the-air firmware updates without halting real-time tasks.