Renesas R5F104EDANA#20

Overview

R5F104EDANA#20 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 1.6–5.5 V at -40°C to +85°C (industrial grade D), delivering 44 DMIPS at 32 MHz for low-power embedded control in sensor nodes and industrial I/O modules.

For engineers reviewing the R5F104EDANA#20 datasheet, R5F104EDANA#20 pinout, R5F104EDANA#20 application, or R5F104EDANA#20 equivalent, key selection criteria include its 40-pin 6×6 mm HWQFN package, integrated RTC + LVD + 10-bit ADC (20-channel), ultra-low STOP mode current (0.60 μA), and support for LIN-bus UART and hardware DTC/ELC peripherals.

Technical Context

The R5F104EDANA#20 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), plus multiply/divide/accumulate instructions and 1 MB address space. It integrates a high-accuracy ±1.0% on-chip oscillator selectable from 12 frequencies (1–64 MHz).

Peripherals include an 8/10-bit SAR ADC with internal 1.45 V reference and temperature sensor, dual 8-bit DAC channels (0–VDD output), two comparators, up to 12 × 16-bit timers (including calendar RTC and watchdog), and serial interfaces: 3–4 UART/LIN channels, 4–10 I²C, and 3–8 CSI (SPI-compatible) channels - all managed via Event Link Controller (ELC) and Data Transfer Controller (DTC).

Key Specifications

Pinout & Package

Package: 40-pin HWQFN (6 × 6 mm, 0.5 mm pitch), exposed die pad recommended to be connected to VSS. Industrial-grade (D) temperature range (-40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104EDANA#20, R5F104EEANA#20 offers +16 KB flash and +1.5 KB RAM for complex protocol stacks, while R5F104EDFP#30 trades the compact HWQFN for LQFP's assembly flexibility-neither is pin-compatible, but both share identical peripheral configuration and register mapping.

Availability

R5F104EDANA#20 is available at Aetrix Electronics and suitable for industrial I/O modules, smart sensor nodes, and home appliance control systems requiring stable component supply, long-term lifecycle support, and guaranteed traceability.

Supply support for R5F104EDANA#20 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 industrial, automotive, and IoT markets.

The RL78/G14 product line delivers true low-power performance (66 µA/MHz, 0.60 µA STOP) with rich analog and communication peripherals for cost-sensitive, battery-operated, and industrial control applications.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating of the R5F104EDANA#20?

The R5F104EDANA#20 operates at up to 32 MHz with a measured performance of 44 DMIPS. This is achieved using the high-speed on-chip oscillator (±1.0% accuracy across 1.8–5.5 V and -40°C to +85°C), and the RL78 CPU core's 3-stage pipeline ensures deterministic execution timing critical for real-time control loops in the R5F104EDANA#20.

Does the R5F104EDANA#20 support LIN bus communication, and how is it implemented?

Yes, the R5F104EDANA#20 supports LIN bus communication via its UART peripherals, which include built-in LIN-specific features such as automatic sync-break detection and checksum generation. All three UART channels (U00, U10, U20) are LIN-capable, enabling direct connection to LIN transceivers without external logic-making the R5F104EDANA#20 suitable for automotive body electronics and industrial sub-networks.

What are the memory resources allocated to the R5F104EDANA#20, and how is data flash endurance specified?

The R5F104EDANA#20 integrates 32 KB of code flash memory (1 KB erase blocks), 4 KB of data flash memory, and 4 KB of RAM. Its data flash is rated for 1,000,000 write/erase cycles (typical) at VDD = 1.8–5.5 V, with background operation (BGO) allowing concurrent code execution-essential for reliable data logging in the R5F104EDANA#20 without interrupting real-time tasks.

How does the R5F104EDANA#20 achieve ultra-low power consumption in STOP mode?

The R5F104EDANA#20 achieves 0.60 µA STOP mode current by retaining only the real-time clock (RTC), low-voltage detector (LVD), and essential SRAM contents while shutting down the CPU, flash, and most peripherals. This state is entered via software command and exited by RTC alarm or external interrupt-enabling multi-year operation in battery-powered applications using the R5F104EDANA#20 as the system controller.

What package type and pin count does the R5F104EDANA#20 use, and what are the key PCB layout considerations?

The R5F104EDANA#20 uses a 40-pin HWQFN package (6 × 6 mm, 0.5 mm pitch) with an exposed die pad. Key layout requirements include connecting the REGC pin to VSS via a 0.47–1 µF capacitor, tying the exposed pad directly to a solid VSS plane for thermal and electrical stability, and maintaining tight decoupling (e.g., 100 nF ceramic) near each VDD pin-critical for noise immunity and consistent low-power behavior in the R5F104EDANA#20.