Renesas R5F52306ADFP#30

Overview

R5F52306ADFP#30 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, integrated FPU (IEEE 754 single-precision), and 12-bit A/D converter with 24 channels - deployed in industrial HMI and sensor interface applications requiring deterministic real-time control and low-power operation.

For engineers reviewing the R5F52306ADFP#30 datasheet, R5F52306ADFP#30 pinout, R5F52306ADFP#30 application, or R5F52306ADFP#30 equivalent, key selection criteria include its 100-pin LFQFP package, absence of CAN and SDHI peripherals (per Table 1.3), support for USB 2.0 full-speed host/function/OTG, RTC with battery backup, and TSIP-Lite encryption engine for secure firmware updates.

Technical Context

The R5F52306ADFP#30 implements the RXv2 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions - enabling ultra-compact code and fast interrupt response. It integrates an on-chip FPU compliant with IEEE 754 and a 32-bit divider with two-cycle minimum execution latency.

Its clock system includes main (1–20 MHz), sub-clock (32.768 kHz), and on-chip oscillators, with PLL support for 54 MHz system clock and 48 MHz USB clock. The ELC enables event-triggered peripheral operation without CPU intervention, supporting low-power timer (LPT) wake-up during software standby mode.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin Low-Profile Quad Flat Package, 14 mm × 14 mm, 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 R5F52306ADFP#30, R5F52305ADFP#30 reduces flash capacity but maintains identical low-power and USB capabilities, while R5F52316ADFP#30 adds SDHI and CAN at the cost of higher unit price and design complexity - making R5F52306ADFP#30 optimal for USB-centric, flash-constrained industrial control where CAN/SDHI are unnecessary.

Availability

R5F52306ADFP#30 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, medical diagnostic tools, and energy meter interfaces requiring stable component supply across multi-year production cycles.

Supply support for R5F52306ADFP#30 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, and power solutions for industrial, automotive, and IoT markets.

The RX230 Group - to which R5F52306ADFP#30 belongs - is engineered for cost-effective, low-power 32-bit control in industrial automation and human-machine interface applications, balancing performance, security, and peripheral integration without CAN or SDHI overhead.

FAQ

Does R5F52306ADFP#30 support CAN bus communication?

No, R5F52306ADFP#30 does not include the RSCAN CAN module. Per Table 1.3 in the official datasheet R01DS0261EJ0120, CAN support is explicitly marked "Not available" for all R5F52306 variants. For CAN capability, consider R5F52316ADFP#30 or R5F52318ADFP#30 within the same RX230/RX231 family.

What is the maximum operating frequency of R5F52306ADFP#30 and how is it achieved?

R5F52306ADFP#30 operates at a maximum system clock frequency of 54 MHz, achieved using the on-chip PLL with a 4–12.5 MHz input source (e.g., 8 MHz crystal fed to PLL). This enables 88.56 DMIPS performance and supports 48 MHz USB clock generation via the dedicated USB PLL circuit.

Is R5F52306ADFP#30 compatible with the SD Host Interface (SDHI)?

No, R5F52306ADFP#30 does not integrate the SDHI peripheral. Table 1.3 confirms SDHI is "Not available" for this part number. The SDHI interface is only present in selected RX231 Group devices such as R5F52316ADLA#20 and R5F52318ADLA#20 - not in any RX230 variant including R5F52306ADFP#30.

What debug interface does R5F52306ADFP#30 use, and what are its capabilities?

R5F52306ADFP#30 uses the FINE (Flash INterface Emulator) debug interface, supporting non-intrusive on-chip debugging, flash programming, and real-time trace via dedicated pins. It enables full breakpoint control, register inspection, and memory access without requiring JTAG - simplifying board layout while maintaining robust development visibility for the RXv2 core.

Does R5F52306ADFP#30 include hardware encryption acceleration?

Yes, R5F52306ADFP#30 integrates TSIP-Lite - a hardware security engine supporting AES-128/256 (ECB, CBC, GCM), CMAC, XTS, CTR, hash functions, and a true random number generator. Key management is protected against unauthorized access, satisfying IEC 60730 Class B requirements for secure firmware updates and cryptographic operations.