Renesas R5F104LDDFB#V0

Overview

R5F104LDDFB#V0 from Renesas is a 64-pin LFQFP, 512 KB flash, 8 KB data flash, 20 KB RAM RL78/G14 16-bit microcontroller operating from 1.6–5.5 V, delivering 44 DMIPS at 32 MHz with ultra-low power consumption (66 μA/MHz active, 0.60 μA RTC+LVD mode), used in industrial motor control and sensor-based HMI systems.

For engineers reviewing the R5F104LDDFB#V0 datasheet, R5F104LDDFB#V0 pinout, R5F104LDDFB#V0 application, or R5F104LDDFB#V0 equivalent, key selection criteria include its industrial-grade temperature range (−40 to +85°C), integrated RTC with calendar/alarm, 10-bit 20-channel ADC, dual D/A converters, and hardware event linking via ELC for deterministic peripheral coordination.

Technical Context

The R5F104LDDFB#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 normal, repeat, and block transfer modes triggered by 19–26 event sources linked via the Event Link Controller (ELC).

Its mixed-signal subsystem includes an 8/10-bit ADC with internal 1.45 V reference and temperature sensor, two 8-bit DACs with real-time output, and dual comparators with selectable internal/external reference. Power management features HALT, STOP, and SNOOZE modes plus on-chip POR and 14-level LVD.

Key Specifications

Pinout & Package

Package: 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), lead-free, RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit microcontroller applications.

Compared with R5F104LDDFB#V0, R5F104LGDFB#V0 trades flash capacity and data retention for lower unit cost, while R5F104LEDFB#V0 maintains data flash functionality at reduced memory scale-both retain identical timing accuracy, ELC/DTC architecture, and industrial temperature rating.

Availability

R5F104LDDFB#V0 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, HMI panels, and PLC I/O modules requiring stable component supply across extended product lifecycles.

Supply support for R5F104LDDFB#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, and power solutions for automotive, industrial, and IoT markets.

The RL78/G14 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive industrial and consumer applications requiring robust analog integration, deterministic real-time performance, and long-term supply assurance.

FAQ

What is the maximum operating frequency and associated DMIPS rating of the R5F104LDDFB#V0?

The R5F104LDDFB#V0 operates at a maximum frequency of 32 MHz and delivers 44 DMIPS (Dhrystone MIPS) under those conditions. This performance is achieved using the RL78 CPU core's 3-stage pipeline and high-speed on-chip oscillator, which maintains ±1.0% accuracy across the full industrial temperature range (−40°C to +85°C) and supply voltage (1.6–5.5 V).

Does the R5F104LDDFB#V0 support in-system programming and secure firmware updates?

Yes, the R5F104LDDFB#V0 supports full in-system programming via its on-chip debug interface and includes dedicated flash security features: block erase/write prohibition, boot swap functionality for fail-safe updates, and flash shield window protection to prevent unauthorized readout or modification of critical firmware sections during runtime.

How many analog-to-digital converter (ADC) channels does the R5F104LDDFB#V0 provide, and what resolution and reference options are available?

The R5F104LDDFB#V0 integrates a 10-bit successive-approximation ADC with up to 20 analog input channels. It supports both external reference voltages and an internal 1.45 V reference, and includes an integrated temperature sensor for system-level thermal monitoring without external components.

What low-power modes are implemented in the R5F104LDDFB#V0, and what is the lowest achievable current consumption?

The R5F104LDDFB#V0 implements HALT, STOP, and SNOOZE low-power modes. In STOP mode with only the real-time clock (RTC) and low-voltage detector (LVD) active, it achieves 0.60 μA typical current consumption at VDD = 3.0 V and TA = 25°C-enabling multi-year battery operation in sensor and metering applications.

Is the R5F104LDDFB#V0 pin-compatible with other members of the RL78/G14 family, and what package variant does it use?

Yes, the R5F104LDDFB#V0 uses the 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch) package and shares identical pinout and electrical characteristics with all other RL78/G14 devices in the same 64-pin LFQFP configuration (e.g., R5F104LKAFB#V0, R5F104LLAFB#V0), enabling seamless migration across memory variants without PCB redesign.