Renesas R5F104BDGFP#V0

Overview

R5F104BDGFP#V0 from Renesas is a 32-bit RL78/G14 microcontroller with 32 KB flash, 4 KB data flash, and 4 KB RAM, operating at 32 MHz (44 DMIPS), supporting 1.6–5.5 V supply and -40 to +85°C industrial temperature range. It integrates UART, I²C, SPI, 10-bit ADC (12 channels), RTC, and ultra-low-power modes (0.60 μA in STOP with RTC+LVD) for embedded control in metering and sensor nodes.

For engineers reviewing the R5F104BDGFP#V0 datasheet, R5F104BDGFP#V0 pinout, R5F104BDGFP#V0 application, or R5F104BDGFP#V0 equivalent, key selection criteria include its LFQFP-32 package with 0.5 mm pitch, industrial-grade thermal rating, integrated debug interface, and support for background data flash rewriting with 1M-cycle endurance.

Technical Context

The R5F104BDGFP#V0 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz), and includes multiply/divide/accumulate instructions. Its memory subsystem comprises 32 KB on-chip code flash (1 KB block size), 4 KB data flash with background operation (BGO), and 4 KB RAM.

Peripheral integration includes an 8-channel 16-bit Timer Array Unit (TAU), 12-bit interval timer, real-time clock with calendar/alarm, 10-bit ADC with 12 input channels and internal 1.45 V reference, and dual UART/I²C/SPI interfaces-all configurable via Event Link Controller (ELC) for hardware-triggered event chaining without CPU intervention.

Key Specifications

Pinout & Package

Package: 32-pin LFQFP (7 × 7 mm, 0.5 mm pitch), RoHS-compliant, with exposed thermal pad connected to VSS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104BEAFP#V0, the R5F104BDGFP#V0 trades flash/RAM capacity for lower BOM cost and smaller code footprint; versus R5F104CDGFP#V0, it adds industrial temperature assurance and higher memory density while retaining identical pinout and peripheral set.

Availability

R5F104BDGFP#V0 is available at Aetrix Electronics and suitable for industrial metering, sensor node deployment, and home appliance control requiring stable component supply across multi-year production cycles.

Supply support for R5F104BDGFP#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 RL78/G14 product line delivers true low-power embedded control with integrated peripherals and security features, targeting cost-sensitive industrial and consumer applications requiring long battery life and robust firmware integrity.

FAQ

What is the maximum operating frequency and corresponding performance of the R5F104BDGFP#V0?

The R5F104BDGFP#V0 operates at up to 32 MHz, delivering 44 DMIPS performance. Its high-accuracy ±1.0% on-chip oscillator eliminates need for external crystal in many applications. The RL78 core supports variable instruction timing-from 0.03125 μs at 32 MHz to 30.5 μs at 32.768 kHz-enabling dynamic power/performance scaling. This makes the R5F104BDGFP#V0 suitable for both high-speed control loops and ultra-low-power wake-on-event scenarios.

Does the R5F104BDGFP#V0 support in-system programming and secure firmware updates?

Yes, the R5F104BDGFP#V0 supports full in-system programming via its on-chip debug interface using TOOLRxD/TOOLTxD pins. It includes self-programming with boot swap and flash shield window functions, plus block-level erase/write prohibition for security. Data flash supports background operation (BGO), allowing firmware to execute while updating nonvolatile storage-critical for secure, seamless OTA updates in field-deployed R5F104BDGFP#V0 systems.

What analog peripherals are integrated into the R5F104BDGFP#V0?

The R5F104BDGFP#V0 integrates a 10-bit successive-approximation ADC with 12 input channels, internal 1.45 V reference voltage, and temperature sensor. It does not include a DAC or comparator. The ADC operates across the full 1.6–5.5 V supply range and supports scan mode, group conversion, and hardware trigger sources including timers and ELC events-making it ideal for sensor signal acquisition in R5F104BDGFP#V0-based measurement systems.

How does the R5F104BDGFP#V0 achieve ultra-low power consumption in STOP mode?

The R5F104BDGFP#V0 achieves 0.60 μA STOP mode current by powering down the CPU, flash, and most peripherals while retaining RTC operation, LVD monitoring, and SRAM contents. Wake-up sources include INT pins, RTC alarm, and LVD threshold detection. This capability enables decade-long battery operation in R5F104BDGFP#V0-powered utility meters and remote sensors without compromising timekeeping or system safety monitoring.

Is the R5F104BDGFP#V0 pin-compatible with other RL78/G14 variants in the same package?

Yes, all RL78/G14 devices in the 32-pin LFQFP-0.5 mm package-including R5F104BDGFP#V0, R5F104BEAFP#V0, and R5F104CDGFP#V0-share identical pinout, electrical characteristics, and peripheral mapping. Memory size, RAM, and temperature grade differ between variants, but PCB layout and firmware initialization remain fully compatible across this package family, simplifying design reuse and scalability for the R5F104BDGFP#V0.