Renesas R5F52203BDFM#30

Overview

R5F52203BDFM#30 from Renesas Electronics is a 32-bit RX CPU-based microcontroller operating at up to 32 MHz, delivering 49 DMIPS performance with 64 KB on-chip flash, 8 KB SRAM, and 8 KB data flash. It integrates a 12-bit A/D converter (1.56 µs conversion), RTC with calendar support, ELC event-driven peripheral control, and IEC60730 safety functions - deployed in industrial sensor nodes and smart metering interfaces.

For engineers reviewing the R5F52203BDFM#30 datasheet, R5F52203BDFM#30 pinout, R5F52203BDFM#30 application, or R5F52203BDFM#30 equivalent, key selection criteria include its 64-pin LQFP (PLQP0064KB-A) package, −40°C to +85°C temperature grade, 1.62–5.5 V supply range, and support for SCI (3 channels), I²C, RSPI, and IrDA via SCI5 - critical for low-power, safety-compliant embedded control designs.

Technical Context

The R5F52203BDFM#30 implements the CISC Harvard-architecture RX CPU core with 5-stage pipeline, variable-length instructions, and 64-bit accumulator for single-cycle 32×32 multiply-accumulate operations. Its clock system includes main oscillator (up to 20 MHz), sub-clock (32.768 kHz), and dedicated IWDT/RTC oscillators, with programmable PCLK/ICLK/FCLK domains enabling independent peripheral timing.

Peripheral integration centers on event-driven operation: the Event Link Controller (ELC) routes 46 event signals directly to modules like MTU2 timers and A/D converter without CPU intervention, while Multi-function Pin Controller (MPC) enables flexible I/O function assignment across 48 GPIO pins - supporting dynamic reconfiguration in field-upgradable firmware.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (PLQP0064KB-A), 10 × 10 mm body, 0.5 mm lead pitch, exposed pad not specified.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with R5F52203BGFM#30, the R5F52203BDFM#30 offers cost-optimized industrial temperature operation; versus R5F52205BDFM#30, it provides memory-constrained deployment where 64 KB flash suffices - both alternatives retain identical peripheral sets, ELC functionality, and IEC60730 support.

Availability

R5F52203BDFM#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meter interfaces, and home appliance control panels requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F52203BDFM#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 is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for industrial, automotive, and IoT applications.

The RX220 Group, including the R5F52203BDFM#30, was designed for cost-sensitive, safety-aware industrial control applications - emphasizing IEC60730 compliance, low-voltage operation, and event-driven peripheral efficiency without sacrificing 32-bit performance.

FAQ

What is the maximum operating frequency and CPU performance of the R5F52203BDFM#30?

The R5F52203BDFM#30 operates at a maximum frequency of 32 MHz and delivers 49 DMIPS of processing performance using the 32-bit RX CPU core. Its architecture supports single-cycle 32×32-bit multiplication with 64-bit accumulation, enabling efficient signal processing and real-time control tasks within the R5F52203BDFM#30's resource constraints.

Does the R5F52203BDFM#30 support IEC60730 functional safety requirements?

Yes, the R5F52203BDFM#30 includes dedicated hardware features for IEC60730 Class B compliance, including self-diagnostic functions for the A/D converter, clock-frequency accuracy measurement circuit (CAC), independent watchdog timer (IWDT), and RAM testing assistance. These capabilities are integrated into the R5F52203BDFM#30 silicon and require no external components to implement basic safety checks.

How many serial communication interfaces does the R5F52203BDFM#30 provide, and what protocols are supported?

The R5F52203BDFM#30 provides up to three SCI channels (SCI1, SCI5, SCI6), one SCIf channel (SCI12), one I²C bus interface (RIIC), and one RSPI channel. Protocols include asynchronous UART, clock-synchronous SPI/I²C, IrDA (via SCI5), SMBus, and simple SPI/I²C modes - all accessible within the R5F52203BDFM#30's 64-pin LQFP package.

What is the ADC specification of the R5F52203BDFM#30, and how is it optimized for industrial use?

The R5F52203BDFM#30 integrates a 12-bit successive-approximation A/D converter with 12 input channels, capable of conversion in as little as 1.56 µs per channel at 32 MHz ADCLK. It includes analog input disconnection detection, self-diagnostic capability, and scan/group modes - features directly supporting predictive maintenance and sensor health monitoring in industrial deployments of the R5F52203BDFM#30.

Can the R5F52203BDFM#30 operate from a single low-voltage supply, and what are the implications?

Yes, the R5F52203BDFM#30 operates from a single 1.62 V to 5.5 V supply, with guaranteed 8 MHz operation down to 1.62 V. This enables direct connection to single-cell Li-ion or primary batteries without regulators, reducing bill-of-materials cost and board space - a key advantage for portable and energy-harvesting applications built around the R5F52203BDFM#30.