Renesas R5F104EDANA#U0

Overview

R5F104EDANA#U0 from Renesas is a 40-pin HWQFN-packaged 16-bit RL78/G14 microcontroller with 32 KB flash, 4 KB data flash, and 4 KB RAM, operating from 1.6 V to 5.5 V at up to 32 MHz (44 DMIPS), featuring ultra-low-power HALT/STOP/SNOOZE modes, integrated RTC, 10-bit ADC (16 channels), and UART/SPI/I²C interfaces for industrial sensor control and smart metering.

For engineers reviewing the R5F104EDANA#U0 datasheet, R5F104EDANA#U0 pinout, R5F104EDANA#U0 application, or R5F104EDANA#U0 equivalent, key selection criteria include its 40-pin 6×6 mm HWQFN-0.5 mm pitch package, -40°C to +85°C industrial temperature grade (D), and verified support for background data flash rewriting and real-time clock calendar functionality.

Technical Context

The R5F104EDANA#U0 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 on-chip debug, self-programming with boot swap, and flash shield window security.

It integrates a 10-bit A/D converter with 16 analog inputs, internal 1.45 V reference and temperature sensor, dual 8-bit D/A outputs, two comparators, and event-driven peripheral control via Event Link Controller (ELC) linking 19–26 event sources to peripherals without CPU intervention.

Key Specifications

Pinout & Package

Package: 40-pin HWQFN (6 × 6 mm, 0.5 mm pitch), exposed die pad (recommended to connect to VSS), RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104EDANA#U0, the R5F104EEANA#U0 provides headroom for feature-rich firmware, while the R5F104EDFP#V0 trades compactness for manufacturability and thermal margin - both retain identical peripheral sets and instruction compatibility.

Availability

R5F104EDANA#U0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart metering endpoints, and building automation controllers requiring stable component supply across extended product lifecycles.

Supply support for R5F104EDANA#U0 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 (66 μA/MHz) with rich analog integration and robust industrial qualification - designed specifically for cost-sensitive, battery-operated, and safety-aware embedded control applications.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F104EDANA#U0?

The R5F104EDANA#U0 operates at 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, eliminating need for external crystals in many timing-critical applications. All timing specifications for the R5F104EDANA#U0 are validated per Renesas R01DS0053EJ0340 datasheet Rev. 3.40.

Does the R5F104EDANA#U0 support background data flash rewriting while executing application code?

Yes, the R5F104EDANA#U0 supports Background Operation (BGO) for data flash rewriting. Instructions can be fetched and executed from program flash memory while the data flash is being rewritten - enabling seamless logging, configuration updates, or OTA parameter storage without halting real-time tasks. This capability is confirmed in Section 1.1 "Features" of the R01DS0053EJ0340 datasheet, with 1,000,000 write cycles rated at VDD = 1.8–5.5 V.

What are the supported serial communication interfaces on the R5F104EDANA#U0?

The R5F104EDANA#U0 integrates three UART channels (one with LIN support), up to eight CSI/SPI channels, and four to ten I²C/simplified I²C channels - all configurable via peripheral I/O redirection registers. Pin assignments for these interfaces are fixed per the 40-pin HWQFN pinout in Section 1.3.4 of R01DS0053EJ0340. No external transceivers are required for basic UART or I²C operation, though RS-485 or CAN require companion ICs.

How does the R5F104EDANA#U0 achieve ultra-low power consumption in STOP mode?

The R5F104EDANA#U0 achieves 0.60 μA in STOP mode by disabling the main system clock while retaining power to the RTC module, low-voltage detector (LVD), and associated wakeup logic. This mode maintains calendar time and voltage monitoring without CPU activity. The specification is guaranteed over -40°C to +85°C (Grade D) and is measured with VDD = 3.0 V per Section 1.1 of R01DS0053EJ0340. External crystal oscillators must be disabled to reach this current level.

Is the R5F104EDANA#U0 pin-compatible with other RL78/G14 variants in the same 40-pin HWQFN package?

Yes, all RL78/G14 devices in the 40-pin HWQFN package (e.g., R5F104EAANA#U0, R5F104EEANA#U0, R5F104EGANA#U0) share identical pinouts and electrical characteristics per R01DS0053EJ0340 Section 1.3.4. Function allocation (e.g., UART vs. ADC) is consistent across variants; only memory sizes and some peripheral counts differ. This allows scalable firmware reuse and PCB design flexibility within the family.