Renesas R5F104BEDFP#X0

Overview

R5F104BEDFP#X0 from Renesas is a 32-bit RL78/G14 microcontroller with 48 KB flash, 5.5 KB RAM, and 44-pin LQFP-0.8 mm package, operating from 1.6–5.5 V at -40°C to +85°C (industrial grade D). It delivers 44 DMIPS at 32 MHz, integrates 10-bit ADC (12 channels), UART/SPI/I²C interfaces, RTC, and ultra-low-power HALT/STOP modes (0.60 μA RTC+LVD). Used in industrial sensor nodes and battery-powered control modules.

For engineers reviewing the R5F104BEDFP#X0 datasheet, R5F104BEDFP#X0 pinout, R5F104BEDFP#X0 application, or R5F104BEDFP#X0 equivalent, key selection criteria include its 44-pin LQFP-0.8 mm footprint, 48 KB flash/5.5 KB RAM allocation, integrated 10-bit ADC with 12 input channels, support for LIN-bus UART, and verified operation across -40°C to +85°C industrial temperature range.

Technical Context

The R5F104BEDFP#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz). It includes Event Link Controller (ELC) for hardware-triggered peripheral chaining and Data Transfer Controller (DTC) for interrupt-driven memory transfers without CPU intervention.

Its power management integrates on-chip POR, 14-level voltage detector (LVD), and multiple low-power modes-HALT (66 μA/MHz), STOP (0.60 μA with RTC+LVD active), and SNOOZE-enabling deterministic wake-up from peripherals including RTC alarm, external interrupts, and serial interface activity.

Key Specifications

Pinout & Package

Package: 44-pin LQFP (10 × 10 mm, 0.8 mm pitch), JEDEC standard PLQP0044GC-A, lead-free and RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104CEAFP#X0, the R5F104BEDFP#X0 provides 50% more flash for enhanced feature sets without layout change; versus R5F104LEAFP#X0, it offers optimal balance of cost, memory, and power for mid-tier industrial control where 48 KB suffices for certified safety logic and communication stacks.

Availability

R5F104BEDFP#X0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC actuators, and programmable logic relays requiring stable component supply, extended lifecycle support, and guaranteed traceability.

Supply support for R5F104BEDFP#X0 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 industrial and consumer control applications, emphasizing energy efficiency, functional safety readiness, and seamless integration of analog/mixed-signal peripherals.

FAQ

What is the maximum clock frequency and corresponding performance of the R5F104BEDFP#X0?

The R5F104BEDFP#X0 operates up to 32 MHz with a measured performance of 44 DMIPS. This is achieved using the RL78 CPU core's 3-stage pipeline and optimized instruction set. The high-speed on-chip oscillator supports ±1.0% accuracy across 1.8–5.5 V and -20°C to +85°C, making the R5F104BEDFP#X0 suitable for time-critical control loops without external crystal dependency.

Does the R5F104BEDFP#X0 support LIN bus communication, and how is it implemented?

Yes, the R5F104BEDFP#X0 supports LIN bus communication through its UART peripherals, specifically UART0 and UART2, which include LIN-break detection and sync-byte handling per LIN 2.2A specification. The R5F104BEDFP#X0 requires no external transceiver for basic LIN slave functionality and can operate as master or slave with software-configurable baud rates and checksum modes.

What are the low-power modes available on the R5F104BEDFP#X0, and what is the typical current draw in STOP mode?

The R5F104BEDFP#X0 supports HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it draws 0.60 μA (typical) at VDD = 3.0 V and TA = 25°C. Wake-up sources include RTC alarm, external interrupts (INTP0–INTP9), and serial interface activity-enabling responsive yet ultra-low-energy operation in battery-powered systems.

Can the R5F104BEDFP#X0 perform simultaneous program execution and data flash rewriting?

Yes, the R5F104BEDFP#X0 supports Background Operation (BGO) for data flash, allowing instruction fetch and execution from code flash while rewriting data flash sectors. This enables real-time parameter updates (e.g., calibration values) without halting application logic, with 1,000,000 write cycles rated at VDD = 1.8–5.5 V-critical for reliable field-upgradable R5F104BEDFP#X0 deployments.

What is the analog input capability of the R5F104BEDFP#X0, and does it include internal references?

The R5F104BEDFP#X0 integrates a 10-bit successive-approximation ADC with 12 selectable analog input channels (ANI0–ANI11), plus internal 1.45 V reference voltage and temperature sensor. These features eliminate external reference ICs and simplify thermal monitoring, enabling direct ratiometric measurements and single-supply sensor interfacing without additional components.