Renesas R5F104ADDSP#V0

Overview

R5F104ADDSP#V0 from Renesas is a 48 KB flash, 4 KB data flash, 4 KB RAM RL78/G14 16-bit microcontroller in 44-pin LQFP package, operating at 32 MHz (44 DMIPS), with ultra-low power consumption (66 μA/MHz active, 0.60 μA RTC+LVD mode), 10-bit ADC (20 channels), and integrated UART/SPI/I²C interfaces for industrial sensor control and HMI applications.

For engineers reviewing the R5F104ADDSP#V0 datasheet, R5F104ADDSP#V0 pinout, R5F104ADDSP#V0 application, or R5F104ADDSP#V0 equivalent, key selection criteria include its industrial-grade -40°C to +85°C temperature rating (D-suffix), LQFP-44 0.8 mm pitch package, on-chip RTC with calendar/alarm, and hardware DTC/ELC for deterministic peripheral event handling without CPU intervention.

Technical Context

The R5F104ADDSP#V0 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), and includes multiply/divide/accumulate instructions. Its memory subsystem integrates 48 KB code flash (1 KB blocks), 4 KB data flash with background operation (BGO), and 4 KB SRAM.

Peripheral integration includes Timer Array Unit (TAU) with 8 channels, 12-bit interval timer, real-time clock (99-year calendar), watchdog timer, 10-bit ADC (20 inputs, internal 1.45 V reference), 8-bit DAC (2 outputs), and dual comparators - all managed via Event Link Controller (ELC) for autonomous signal chaining and Data Transfer Controller (DTC) for interrupt-driven DMA transfers.

Key Specifications

Pinout & Package

Package: 44-pin LQFP (10 × 10 mm, 0.8 mm pitch), lead-free, RoHS-compliant, industrial temperature grade (-40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104AEASP#V0 and R5F104BDSP#V0, the R5F104ADDSP#V0 provides 3× more code flash than the AE variant and 1.5× more than the BD variant while retaining identical peripheral count, package, and power profile-making it optimal for feature-rich industrial firmware with integrated protocol stacks and diagnostics.

Availability

R5F104ADDSP#V0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC controllers, programmable logic relays, and HMI panels requiring stable component supply across extended product lifecycles.

Supply support for R5F104ADDSP#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 delivering microcontrollers, analog, power, and SoC 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 equipment requiring robust peripheral integration, long battery life, and seamless toolchain support with CS+ and e2 studio.

FAQ

What is the maximum operating frequency and corresponding performance of the R5F104ADDSP#V0?

The R5F104ADDSP#V0 operates at up to 32 MHz using its high-speed on-chip oscillator, delivering 44 DMIPS of processing performance. Its RL78 CPU core achieves a minimum instruction execution time of 0.03125 μs at this frequency, with configurable clock division enabling ultra-low-speed operation down to 32.768 kHz for RTC and LVD-only modes. This dual-speed capability ensures both high-throughput control and extended battery life.

Does the R5F104ADDSP#V0 support hardware-based DMA transfers, and how is it implemented?

Yes, the R5F104ADDSP#V0 implements a Data Transfer Controller (DTC) that performs hardware-accelerated memory-to-peripheral and memory-to-memory transfers without CPU involvement. It supports normal, repeat, and block transfer modes, triggered by 19–26 peripheral interrupt sources, and includes chain transfer functionality for cascaded operations. This enables efficient ADC data streaming to RAM or UART transmission buffering while the CPU executes application logic.

How does the R5F104ADDSP#V0 manage real-time clock functionality, and what calendar features are included?

The R5F104ADDSP#V0 integrates a dedicated real-time clock (RTC) module supporting a full 99-year calendar with leap-year correction, alarm interrupt generation, and independent clock correction circuitry. It operates from a 32.768 kHz crystal (X1/X2 pins) or internal sub-system clock, maintaining timekeeping in STOP mode with only 0.60 μA current draw. The RTC generates periodic interrupts (e.g., 1 Hz) usable for task scheduling or wake-up events.

What analog peripherals are integrated into the R5F104ADDSP#V0, and what are their key specifications?

The R5F104ADDSP#V0 integrates a 10-bit successive-approximation ADC with up to 20 input channels, selectable internal 1.45 V reference or external AVREFP/AVREFM inputs, and built-in temperature sensor. It also includes an 8-bit DAC with up to two output channels (0–VDD range) and real-time update capability, plus up to two comparators with window, high-speed, and low-speed operating modes. These peripherals support ratiometric sensor measurement and closed-loop analog control without external ICs.

Is the R5F104ADDSP#V0 pin-compatible with other RL78/G14 variants in the same package, and what design considerations apply?

Yes, the R5F104ADDSP#V0 is pin-compatible with all RL78/G14 devices in the 44-pin LQFP-0.8 mm package (e.g., R5F104AEASP#V0, R5F104BDSP#V0), sharing identical pin functions, electrical characteristics, and mechanical footprint. However, memory size (flash/RAM/data flash), peripheral enablement (e.g., DAC channel count), and factory-programmed options (e.g., security lock bits) differ. PCB designs can be reused across these variants, but firmware must match the target device's memory map and peripheral configuration.