Renesas R5F52105BDFL#30

Overview

R5F52105BDFL#30 from Renesas Electronics is a 32-bit RX210 Group microcontroller featuring a 50 MHz CPU core delivering 78 DMIPS, 128 KB on-chip flash memory, 20 KB SRAM, and 8 KB data flash. It integrates a 12-bit A/D converter (1 μs conversion), 10-bit D/A converter (2 channels), RTC with deep software standby wake-up, ELC for event-driven peripheral operation, and IEC60730-compliant safety functions - deployed in industrial control panels requiring deterministic real-time response and functional safety support.

For engineers reviewing the R5F52105BDFL#30 datasheet, R5F52105BDFL#30 pinout, R5F52105BDFL#30 application, or R5F52105BDFL#30 equivalent, key selection criteria include its 48-pin LQFP package (PLQP0048KB-A), −40°C to +85°C temperature grade (D version), chip version B feature set (including full ELC, RTC, and 12-channel ADC), and compatibility with Renesas E1 emulator via FINE interface.

Technical Context

The R5F52105BDFL#30 implements the 32-bit RX CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code. Its clock system includes PLL (4–12.5 MHz input), sub-clock oscillator (32.768 kHz), and dedicated IWDT oscillator (125 kHz), supporting independent ICLK (50 MHz), PCLK (32 MHz), BCLK (12.5 MHz), and FCLK (32 MHz) domains.

It features dual timer subsystems: MTU2 (6-channel 16-bit unit with complementary PWM and phase counting) and TPU (6-channel 16-bit unit), plus TMR (4-channel 8-bit) and CMT (4-channel 16-bit compare match). Peripheral triggering is coordinated via Event Link Controller (ELC), enabling direct module activation without CPU intervention during low-power modes.

Key Specifications

Pinout & Package

Package: PLQP0048KB-A - 48-pin LQFP, 7 × 7 mm body, 0.5 mm pitch, exposed pad optional, RoHS-compliant lead-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52105ADFL#V0, the R5F52105BDFL#30 delivers full RTC, ELC, and enhanced timer resources essential for time-aware industrial control; versus R5F52105BDFP#30, it trades pin count and peripheral count for compact 48-pin footprint - ideal for space-constrained embedded nodes where core functionality suffices.

Availability

R5F52105BDFL#30 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, motor feedback units, and energy metering subsystems requiring stable component supply, long-term lifecycle assurance, and Renesas-qualified production lots.

Supply support for R5F52105BDFL#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, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX210 Group, including the R5F52105BDFL#30, was designed for cost-sensitive industrial automation applications demanding real-time performance, functional safety compliance (IEC60730), and low-power operation without sacrificing peripheral richness.

FAQ

What is the maximum operating frequency and CPU performance of the R5F52105BDFL#30?

The R5F52105BDFL#30 operates at a maximum frequency of 50 MHz and delivers 78 DMIPS of processing performance. Its 32-bit RX CPU core uses a 5-stage pipeline and variable-length instruction set to achieve high code density and deterministic execution. Performance is sustained across the full 1.62–5.5 V supply range, with frequency scaling tied to VCC: 20 MHz at 1.62–1.8 V, 32 MHz at 1.8–2.7 V, and 50 MHz above 2.7 V. This makes the R5F52105BDFL#30 suitable for real-time control tasks in industrial environments where consistent throughput matters.

Does the R5F52105BDFL#30 support functional safety standards like IEC60730?

Yes, the R5F52105BDFL#30 includes integrated hardware features to support Class B compliance per IEC60730, including RAM self-test (MARCH-C algorithm), A/D converter self-diagnostic, clock accuracy measurement circuit (CAC), independent watchdog timer (IWDT) with dedicated oscillator, and analog input disconnection detection. These capabilities reduce reliance on external safety components and simplify certification efforts for household appliances and industrial equipment. The R5F52105BDFL#30's documentation explicitly references IEC60730 support in its datasheet features section.

What package type and pin count does the R5F52105BDFL#30 use?

The R5F52105BDFL#30 uses the PLQP0048KB-A package: a 48-pin LQFP with 7 × 7 mm body size and 0.5 mm pin pitch. This package is RoHS-compliant and lead-free. It provides 34 general-purpose I/O pins plus dedicated function pins for clocks, reset, debug, and analog interfaces. The "FL" suffix in the part number directly encodes this 48-pin LQFP configuration, distinguishing it from 64-, 80-, or 100-pin variants in the same RX210 family.

Can the R5F52105BDFL#30 operate from a single low-voltage supply?

Yes, the R5F52105BDFL#30 operates from a single supply ranging from 1.62 V to 5.5 V. At 1.62–1.8 V, it supports up to 20 MHz operation; at 1.8–2.7 V, up to 32 MHz; and at 2.7–5.5 V, full 50 MHz performance. This wide supply range allows direct integration with Li-ion battery systems (3.0–4.2 V), industrial 3.3 V rails, or legacy 5 V infrastructure - without level shifters or external regulators. The R5F52105BDFL#30 also includes three independent voltage detection circuits (LVDA) for brown-out protection.

What debug and programming interfaces are supported by the R5F52105BDFL#30?

The R5F52105BDFL#30 supports on-chip debugging via the FINE interface, compatible with Renesas E1 emulator for full-featured real-time debugging, flash programming, and trace. It also supports user code programming through the SCI interface (e.g., SCI1), enabling field firmware updates without JTAG hardware. Flash memory is programmable at minimum 1.62 V, allowing in-system reprogramming under low-power conditions. The R5F52105BDFL#30 does not support SWD or JTAG; FINE is its sole standardized debug interface.