Renesas R5F104BCDFP#V0

Overview

R5F104BCDFP#V0 from Renesas is a 32-bit RL78/G14 microcontroller with 32 KB flash memory, 4 KB data flash, and 5.5 KB RAM, operating at up to 32 MHz (44 DMIPS), featuring ultra-low power consumption (66 μA/MHz active, 0.60 μA in RTC+LVD mode), integrated 10-bit ADC (12 channels), UART/SPI/I²C interfaces, and real-time clock - deployed in industrial sensor nodes and battery-powered control modules.

For engineers reviewing the R5F104BCDFP#V0 datasheet, R5F104BCDFP#V0 pinout, R5F104BCDFP#V0 application, or R5F104BCDFP#V0 equivalent, key selection considerations include its LQFP-32 package, -40°C to +85°C industrial temperature grade (D suffix), 1.6–5.5 V supply range, on-chip debug support, and hardware-accelerated data transfer controller (DTC) for low-CPU-load peripheral handling.

Technical Context

The R5F104BCDFP#V0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz ultra-low-speed mode), plus multiply/divide/accumulate instructions and 1 MB address space. It integrates event link controller (ELC) for direct peripheral-to-peripheral signal routing without CPU intervention.

Its power management includes HALT, STOP, and SNOOZE modes, on-chip POR and 14-level LVD with interrupt/reset options, and a high-accuracy ±1.0% on-chip oscillator (selectable 1–64 MHz). The DTC supports normal, repeat, and block transfer modes triggered by 19–26 event sources, including chain transfer capability.

Key Specifications

Pinout & Package

Package: 32-pin LQFP (7 × 7 mm, 0.8 mm pitch), lead-free, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104BCDFP#V0, the R5F104BEFP#V0 offers +50% flash headroom for feature-rich firmware, while the R5F104BDGP#V0 trades LQFP-32's ease of assembly for 44% smaller area - both retain identical peripheral sets, clocking, and low-power behavior.

Availability

R5F104BCDFP#V0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, and programmable logic relays requiring stable component supply, long-term lifecycle support, and guaranteed traceability.

Supply support for R5F104BCDFP#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 performance for general-purpose embedded control, targeting cost-sensitive industrial, home appliance, and sensor applications where energy efficiency and integration are critical.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F104BCDFP#V0?

The R5F104BCDFP#V0 operates at up to 32 MHz with a measured performance of 44 DMIPS. This rating is achieved using the RL78 CPU core's 3-stage pipeline and optimized instruction set, enabling deterministic real-time control in applications such as motor drives and sensor fusion. The R5F104BCDFP#V0 maintains this performance across its full 1.6–5.5 V supply range and -40°C to +85°C temperature grade.

Does the R5F104BCDFP#V0 support in-system programming and secure firmware updates?

Yes, the R5F104BCDFP#V0 supports full in-system programming via its on-chip debug interface and UART/SPI boot loader. It includes boot swap functionality and flash shield window protection to prevent unauthorized access during field updates. These features allow safe, authenticated firmware upgrades without removing the R5F104BCDFP#V0 from the target board or requiring external programming hardware.

How many analog input channels does the integrated 10-bit ADC support on the R5F104BCDFP#V0?

The R5F104BCDFP#V0 integrates a 10-bit successive-approximation ADC with 12 selectable analog input channels (ANI0–ANI11), plus internal temperature sensor and 1.45 V reference voltage. All channels operate across the full 1.6–5.5 V supply range, enabling direct measurement of sensors, potentiometers, and battery voltages without external signal conditioning in most cases.

What serial communication interfaces are available on the R5F104BCDFP#V0, and how are they mapped to pins?

The R5F104BCDFP#V0 provides 3 UART/LIN channels, 3 CSI (SPI-compatible) channels, and 4 I²C/simplified I²C channels. These interfaces are multiplexed across P10–P17 and P50–P51, with flexible assignment controlled by peripheral I/O redirection registers (PIOR0/1). This allows dynamic remapping of functions like SCL/SDA or TXD/RXD to alternate pins without hardware changes.

Is the R5F104BCDFP#V0 qualified for industrial temperature operation, and what packaging option does it use?

Yes, the R5F104BCDFP#V0 carries the 'D' suffix indicating industrial temperature qualification (-40°C to +85°C). It is supplied in a 32-pin LQFP package (7 × 7 mm, 0.8 mm pitch) with #V0 tray packaging - compatible with standard SMT assembly processes and offering robust thermal and mechanical performance for industrial control environments.