Renesas R5F52106BDFF#V0

Overview

R5F52106BDFF#V0 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 (12 channels), 10-bit D/A converter (2 channels), RTC, ELC, MPC, and IEC60730-compliant safety functions. It targets industrial control and consumer equipment requiring deterministic real-time performance and low-power operation.

For engineers reviewing the R5F52106BDFF#V0 datasheet, R5F52106BDFF#V0 pinout, R5F52106BDFF#V0 application, or R5F52106BDFF#V0 equivalent, key selection criteria include its 80-pin LQFP-0.65mm package, −40°C to +85°C temperature grade, integrated event-link controller for interrupt-free peripheral coordination, and dual watchdog architecture with independent IWDT clock source.

Technical Context

The R5F52106BDFF#V0 implements a CISC Harvard architecture with 5-stage pipeline and variable-length instructions, enabling ultra-compact code and single-cycle 32×32-bit multiplication. Its on-chip debugging circuit supports FINE interface via E1 emulator.

It integrates an Event Link Controller (ELC) supporting 59 event signal types for direct module triggering without CPU intervention, and a Multi-function Pin Controller (MPC) enabling flexible peripheral function assignment across multiple I/O pins - both critical for deterministic timing in motor control and sensor fusion applications.

Key Specifications

Pinout & Package

Package: 80-pin LQFP (PLQP0080JA-A), 14 × 14 mm body, 0.65-mm pitch, exposed pad (thermal pad not electrically connected).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52106ADFP#V0, the R5F52106BDFF#V0 delivers full RTC and 12-channel A/D capability in the same 80-pin footprint; versus R5F52106BDFB#30, it trades external bus and TPU for compactness and lower BOM cost while retaining ELC, MPC, and IEC60730 features essential for certified industrial designs.

Availability

R5F52106BDFF#V0 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, home appliance HMI, and factory automation I/O modules requiring stable component supply across extended product lifecycles.

Supply support for R5F52106BDFF#V0 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 R5F52106BDFF#V0, was designed for cost-sensitive industrial and consumer applications demanding real-time determinism, functional safety compliance (IEC60730), and low-power operation without sacrificing peripheral richness.

FAQ

What is the maximum operating frequency and voltage range for the R5F52106BDFF#V0?

The R5F52106BDFF#V0 operates at up to 50 MHz when supplied with 2.7–5.5 V, 32 MHz at 1.8–2.7 V, and 20 MHz at 1.62–1.8 V. Its single-supply design eliminates need for multiple rails, and the 1.62-V minimum enables battery-backed operation in deep standby mode while maintaining RTC functionality - a key advantage for energy-harvesting or backup-power applications using the R5F52106BDFF#V0.

Does the R5F52106BDFF#V0 support IEC60730 Class B compliance out of the box?

Yes, the R5F52106BDFF#V0 integrates hardware-assisted self-test features required for IEC60730 Class B, including A/D converter diagnostics, clock accuracy measurement (CAC), independent watchdog timer (IWDT) with dedicated oscillator, RAM test assist, and analog input disconnection detection. These capabilities reduce firmware validation effort and eliminate external safety monitors, making the R5F52106BDFF#V0 suitable for certified white-goods and industrial safety subsystems.

How many A/D converter channels does the R5F52106BDFF#V0 support, and what is its conversion speed?

The R5F52106BDFF#V0 supports 12 A/D input channels (AN000–AN011) with 12-bit resolution and a minimum conversion time of 1.0 μs per channel when ADCLK runs at 50 MHz. It includes sample-and-hold on three channels and supports synchronized sampling across those channels - enabling accurate multi-sensor acquisition for motor current/voltage monitoring or environmental sensing in systems built around the R5F52106BDFF#V0.

What debug interface does the R5F52106BDFF#V0 use, and is it compatible with standard tools?

The R5F52106BDFF#V0 uses the FINE (Fast In-Circuit Emulator) debug interface, fully supported by Renesas' E1 emulator and e2 studio IDE. This interface provides non-intrusive real-time trace, hardware breakpoints, and memory inspection without halting CPU execution - critical for validating timing-critical ISR behavior and optimizing control loops in applications leveraging the R5F52106BDFF#V0.

Can the R5F52106BDFF#V0 generate complementary PWM waveforms for 3-phase motor control?

Yes, the R5F52106BDFF#V0's MTU2 (Multi-function Timer Pulse Unit 2) supports complementary PWM output mode with programmable dead-time insertion on six 16-bit channels. Paired with the ELC for automatic A/D trigger synchronization and POE2 for waveform output enable control, it delivers robust 3-phase gate drive timing - a core capability confirmed in the R5F52106BDFF#V0 datasheet for BLDC and PMSM motor control implementations.