Renesas R5F52103BDFF#V0

Overview

R5F52103BDFF#V0 from Renesas Electronics is a 32-bit RX CPU-based microcontroller operating at up to 50 MHz (78 DMIPS), featuring 64 KB on-chip flash, 12 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, and supports IEC60730 safety compliance for industrial control applications.

For engineers reviewing the R5F52103BDFF#V0 datasheet, R5F52103BDFF#V0 pinout, R5F52103BDFF#V0 application, or R5F52103BDFF#V0 equivalent, key selection criteria include its 80-pin LQFP-0.65mm package, −40°C to +85°C temperature grade, integrated ELC and MPC for event-driven low-power operation, and support for up to 15 communication channels including SCI, I²C, and RSPI.

Technical Context

The R5F52103BDFF#V0 implements the RXv1 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code. It supports little-endian or big-endian data arrangement and includes a 32×32→64-bit multiplier and 32/32→32-bit divider executing in one cycle.

Its clock system integrates PLL, main/sub-clock oscillators, and dedicated IWDT oscillator, with independent clock domains for ICLK (50 MHz max), PCLK (32 MHz max), BCLK (12.5 MHz max), and FCLK (32 MHz max). The ELC enables direct module triggering without CPU intervention, and MPC allows flexible peripheral pin assignment across multiple I/O ports.

Key Specifications

Pinout & Package

Package: 80-pin LQFP (PLQP0080JA-A), 14 × 14 mm body, 0.65 mm pitch, exposed pad not specified, RoHS-compliant lead-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F52103BDFF#V0, R5F52106BDFF#V0 offers scalable memory for complex firmware while maintaining identical pinout and peripheral compatibility; R5F52103ADFF#V0 reduces feature count and safety capability, limiting use to basic control tasks without timekeeping or encoder interfacing.

Availability

R5F52103BDFF#V0 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, home appliance UI, and building automation sensor nodes requiring stable component supply, long-term lifecycle support, and −40°C to +85°C operational reliability.

Supply support for R5F52103BDFF#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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX210 Group, including R5F52103BDFF#V0, was designed for cost-sensitive industrial and consumer applications demanding high CPU performance, integrated analog peripherals, functional safety features, and low-power operation in compact LQFP packages.

FAQ

What is the maximum operating frequency and CPU performance of the R5F52103BDFF#V0?

The R5F52103BDFF#V0 operates at a maximum frequency of 50 MHz and delivers 78 DMIPS of processing performance. Its RXv1 32-bit CPU core uses a 5-stage pipeline and variable-length instruction set to achieve high code density and deterministic real-time execution. This performance level supports complex control algorithms and communication stack handling without external co-processors.

Does the R5F52103BDFF#V0 include a real-time clock (RTC), and what are its capabilities?

Yes, the R5F52103BDFF#V0 includes a fully featured RTC module powered by the 32.768 kHz sub-clock oscillator. It supports calendar/time display (year/month/day/hour/minute/second), alarm and periodic interrupts, time capture on external events, leap-year correction, and RTC-initiated wake-up from deep software standby mode-enabling precise timekeeping in battery-backed applications.

What analog peripherals are integrated into the R5F52103BDFF#V0?

The R5F52103BDFF#V0 integrates a 12-bit successive-approximation A/D converter (S12AD) with 16 input channels and 1 μs conversion time, two 10-bit D/A converters, two 2-channel analog comparators (CMPA/B), and an on-die temperature sensor (TEMPS) with programmable gain amplifier. These enable sensor signal conditioning, closed-loop control, and system health monitoring without external analog components.

How does the Event Link Controller (ELC) enhance system efficiency in the R5F52103BDFF#V0?

The ELC in the R5F52103BDFF#V0 enables direct hardware-level connection between 59 event sources (e.g., timer overflows, GPIO transitions) and peripheral modules (e.g., ADC start, DMA trigger, PWM reload). This eliminates CPU polling and interrupt latency, reducing power consumption and improving determinism-critical for motor control and real-time data acquisition where sub-microsecond timing is required.

What package and temperature grade does the R5F52103BDFF#V0 use?

The R5F52103BDFF#V0 is supplied in an 80-pin LQFP package (PLQP0080JA-A) with 14 × 14 mm body size and 0.65 mm pin pitch. It is rated for industrial temperature operation from −40°C to +85°C (D version), making it suitable for deployment in harsh environments such as factory floors, utility meters, and outdoor appliance enclosures.