Renesas R5F104BFGFP#V0

Overview

R5F104BFGFP#V0 from Renesas is a 32-bit RL78/G14 microcontroller with 96 KB flash, 12 KB RAM, and 48-pin LFQFP (7 × 7 mm, 0.5 mm pitch) package, operating from 1.6–5.5 V at -40 to +85°C. It delivers 44 DMIPS @ 32 MHz, features ultra-low power consumption (66 μA/MHz active, 0.60 μA RTC+LVD), integrated 10-bit ADC (16 channels), UART/SPI/I²C interfaces, and real-time clock - deployed in industrial sensor nodes and battery-powered control modules.

For engineers reviewing the R5F104BFGFP#V0 datasheet, R5F104BFGFP#V0 pinout, R5F104BFGFP#V0 application, or R5F104BFGFP#V0 equivalent, key selection criteria include its 48-pin LFQFP footprint, 96 KB code flash with data flash shield, on-chip debug support, and compatibility with Renesas' CS+ and e² studio toolchains for rapid firmware development and low-power system validation.

Technical Context

The R5F104BFGFP#V0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 µs @ 32 MHz to 30.5 µs @ 32.768 kHz). It integrates a Data Transfer Controller (DTC) supporting block/chain transfers triggered by 19–26 event sources via the Event Link Controller (ELC), enabling deterministic peripheral-to-memory data movement without CPU intervention.

Its mixed-signal subsystem includes an 8/10-bit ADC with internal 1.45 V reference and temperature sensor, dual 8-bit DAC outputs (0–VDD range), two comparators with window mode, and a calendar-mode RTC with alarm and clock correction - all powered from the same 1.6–5.5 V supply rail and operable in STOP/HALT modes for energy-constrained applications.

Key Specifications

Pinout & Package

Package: 48-pin LFQFP, 7 × 7 mm body, 0.5 mm pitch, exposed pad not present (non-HWQFN). Pin count and footprint match JEDEC MS-026AC standard; compatible with standard reflow profiles for lead-free assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104BFGFP#V0, the R5F104GFGFP#V0 offers scalable code density without changing board layout, while the R5F104BFGLF#V0 trades thermal performance and package form factor for identical functionality - enabling design flexibility across cost, size, and thermal requirements.

Availability

R5F104BFGFP#V0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat control, and programmable logic controller (PLC) I/O modules requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.

Supply support for R5F104BFGFP#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 targets cost-sensitive, ultra-low-power general-purpose applications - delivering optimized integration of flash, analog peripherals, and energy-efficient architecture for battery-operated and mains-powered embedded systems.

FAQ

What is the maximum operating frequency and corresponding performance of the R5F104BFGFP#V0?

The R5F104BFGFP#V0 operates at up to 32 MHz with a peak performance of 44 DMIPS. Its high-accuracy on-chip oscillator maintains ±1.0% tolerance across 1.8–5.5 V and -20 to +85°C, eliminating need for external crystal in many timing-tolerant applications. This frequency supports real-time control loops, UART communication at 115.2 kbps, and concurrent peripheral operation without throttling.

Does the R5F104BFGFP#V0 support in-system programming and secure firmware updates?

Yes, the R5F104BFGFP#V0 supports full in-system programming via its on-chip debug interface and self-programming capability. It includes flash shield window protection, per-block erase/write prohibition, and boot swapping - enabling secure field firmware updates with rollback protection. The 8 KB data flash supports background operation (BGO), allowing uninterrupted application execution during reprogramming.

How many analog input channels does the R5F104BFGFP#V0 ADC support, and what reference options are available?

The R5F104BFGFP#V0 integrates a 10-bit successive-approximation ADC with 16 analog input channels. It supports both external reference voltage (applied to AVREFP/AVREFM pins) and internal 1.45 V reference. The internal reference is factory-trimmed and usable across the full 1.6–5.5 V supply range, enabling accurate sensor measurements without external precision references.

What low-power modes are available on the R5F104BFGFP#V0, and what is the lowest achievable current draw?

The R5F104BFGFP#V0 offers HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD enabled, it draws 0.60 μA typical at 25°C - verified per datasheet R01DS0053EJ0370. Wake-up latency is <4.4 μs from HALT and <10 μs from STOP, making it suitable for duty-cycled sensor applications where sub-millisecond responsiveness is required after sleep.

Is the R5F104BFGFP#V0 pin-compatible with other RL78/G14 variants in the same 48-pin LFQFP package?

Yes, all RL78/G14 devices in the 48-pin LFQFP package (e.g., R5F104GFGFP#V0, R5F104FFGFP#V0) share identical pinouts and electrical characteristics. Function allocation (e.g., UART vs. SPI on specific pins) is consistent across the family, enabling hardware scalability - users can upgrade flash/RAM capacity without modifying PCB layout or schematic interconnects.