Renesas R5F52106BDFM#30

Overview

R5F52106BDFM#30 from Renesas Electronics is a 32-bit RX CPU-based microcontroller operating at up to 50 MHz (78 DMIPS), featuring 256 KB on-chip flash, 32 KB SRAM, 8 KB data flash, 12-bit A/D converter (16 channels), 10-bit D/A converter (2 channels), RTC, ELC, MPC, and IEC60730 compliance functions - deployed in industrial control panels requiring deterministic real-time response and functional safety support.

For engineers reviewing the R5F52106BDFM#30 datasheet, R5F52106BDFM#30 pinout, R5F52106BDFM#30 application, or R5F52106BDFM#30 equivalent, key selection criteria include its 64-pin LQFP package (PLQP0064KB-A), 50-MHz operation with no wait states, 1.62–5.5 V supply range, −40°C to +85°C temperature grade, and integrated peripherals including SCI (6 channels), RIIC, RSPI, TPU/MTU timers, and dual comparators.

Technical Context

The R5F52106BDFM#30 implements the RXv1 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code density. It supports little-endian or big-endian data arrangement and includes a 64-bit accumulator for single-cycle 32×32-bit multiply-accumulate operations.

Its clock system integrates PLL, high-/low-speed on-chip oscillators, sub-clock oscillator (32.768 kHz), IWDT-dedicated oscillator, and Clock Accuracy Check (CAC) circuit. Peripheral modules operate synchronously with independently configurable clocks: ICLK (50 MHz max), PCLK (32 MHz max), BCLK (12.5 MHz max), and FCLK (32 MHz max).

Key Specifications

Pinout & Package

Package: 64-pin LQFP (PLQP0064KB-A), 10 × 10 mm, 0.5-mm pitch, exposed pad, RoHS-compliant, Pb-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52106ADFM#V0, R5F52106BDFM#30 delivers full RTC, TPU, and ELC functionality in a compact 64-pin footprint; versus R5F52106BDFB#30, it trades pin count and external bus capability for board space savings while retaining identical core performance, memory, and safety features.

Availability

R5F52106BDFM#30 is available at Aetrix Electronics and suitable for industrial HMI panels, smart energy meters, PLC I/O modules, and home appliance motor controllers requiring stable component supply, long-term lifecycle assurance, and functional safety certification support.

Supply support for R5F52106BDFM#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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, infrastructure, and IoT markets.

The RX210 Group - including R5F52106BDFM#30 - was designed for cost-sensitive industrial and consumer applications demanding high CPU performance, integrated safety features (IEC60730), low-power operation, and rich analog/motor-control peripherals.

FAQ

What is the maximum operating frequency and associated performance of the R5F52106BDFM#30?

The R5F52106BDFM#30 operates at a maximum frequency of 50 MHz, delivering 78 DMIPS of processing performance. Its RXv1 CPU core achieves this with zero wait-state access to on-chip flash memory, enabling deterministic real-time execution. The device sustains full performance across its 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 R5F52106BDFM#30 suitable for applications requiring consistent throughput under varying power conditions.

Does the R5F52106BDFM#30 support functional safety standards like IEC60730?

Yes, the R5F52106BDFM#30 includes dedicated hardware features for IEC60730 Class B compliance, including self-diagnostic support for the A/D converter, clock accuracy measurement circuit (CAC), independent watchdog timer (IWDT), RAM testing assistance, and analog input disconnection detection. These capabilities reduce the need for external safety monitors and simplify certification efforts for household appliances and industrial equipment. Renesas provides application notes and safety manuals specifically for R5F52106BDFM#30 to guide implementation.

What package type and pin count does the R5F52106BDFM#30 use?

The R5F52106BDFM#30 uses a 64-pin LQFP package designated PLQP0064KB-A, measuring 10 × 10 mm with 0.5-mm pitch and an exposed thermal pad. This package supports 48 general-purpose I/O pins (of which 4 are 5-V tolerant), 16 analog input channels, and all core peripherals including SCI, RIIC, RSPI, MTU2, RTC, and DACs. Its compact size and standard footprint make it ideal for space-constrained industrial and consumer designs where full RX210 functionality is needed without larger packages.

How many communication interfaces does the R5F52106BDFM#30 integrate, and what are their key capabilities?

The R5F52106BDFM#30 integrates six SCI channels (asynchronous, clock-synchronous, smart card), one I2C bus interface (RIIC) supporting 400 kbps and SMBus, and one RSPI channel capable of 16 Mbps master/slave operation with 128-bit TX/RX buffers. SCI channels support LSB/MSB-first transfer and baud-rate generation via TMR; RIIC includes master/slave mode and fast-mode support; RSPI offers flexible frame sizes (8–32 bits) and double-buffered transfers. These interfaces enable robust connectivity in multi-protocol industrial systems.

What are the memory resources available on the R5F52106BDFM#30?

The R5F52106BDFM#30 includes 256 KB of on-chip flash memory (for program and data storage, accessible at full 50 MHz with zero wait states), 32 KB of SRAM (also zero wait-state), and 8 KB of data flash memory rated for 100,000 erase/write cycles. The data flash supports background erase and program operations without CPU interruption, making it ideal for storing calibration data, device configuration, or firmware update payloads. All memory blocks are user-programmable via SCI or on-chip debug interface.