Renesas R5F104GDANA#U0

Overview

R5F104GDANA#U0 from Renesas is a 48-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 to +85°C (Industrial D-grade), delivering 44 DMIPS at 32 MHz for low-power embedded control in sensor nodes and industrial I/O modules.

For engineers reviewing the R5F104GDANA#U0 datasheet, R5F104GDANA#U0 pinout, R5F104GDANA#U0 application, or R5F104GDANA#U0 equivalent, key selection criteria include its 66 μA/MHz active current, integrated RTC + LVD, 10-bit 16-channel ADC, dual UART/SPI/I²C interfaces, and hardware DTC/ELC for deterministic real-time peripheral coordination.

Technical Context

The R5F104GDANA#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), plus multiply/divide/accumulate instructions and 1 MB address space. It integrates a high-accuracy ±1.0% on-chip oscillator (1–64 MHz selectable) and dedicated low-speed oscillator for watchdog operation.

Its peripheral set includes Timer Array Unit (TAU) with up to 8 channels, 12-bit interval timer, calendar RTC with alarm/correction, 8-bit DAC (2-channel), two comparators, and event-driven architecture via Event Link Controller (ELC) linking 19–26 event sources to peripherals without CPU intervention.

Key Specifications

Pinout & Package

Package: 48-pin HWQFN (7 × 7 mm, 0.5 mm pitch) with exposed die pad (recommended to connect to VSS). Pin count and footprint match JEDEC MO-220WEED.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104GEANA#U0, the R5F104GDANA#U0 trades flash capacity for lower cost and smaller memory footprint; compared with R5F104GDFA#V0, it offers superior thermal performance and board space efficiency via HWQFN's exposed pad, but demands fine-pitch reflow capability.

Availability

R5F104GDANA#U0 is available at Aetrix Electronics and suitable for smart sensor nodes, industrial I/O modules, and home appliance control systems requiring stable component supply across extended production lifecycles.

Supply support for R5F104GDANA#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 embedded control with integrated analog, communication, and real-time peripherals optimized for cost-sensitive industrial and consumer applications.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F104GDANA#U0?

The R5F104GDANA#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 high-speed on-chip oscillator. The device supports dynamic clock scaling down to 32.768 kHz for ultra-low-power RTC operation, and the instruction execution time ranges from 0.03125 μs (at 32 MHz) to 30.5 μs (at 32.768 kHz). All timing specifications are validated across the full industrial temperature range (–40°C to +85°C).

Does the R5F104GDANA#U0 support in-system programming and secure firmware updates?

Yes, the R5F104GDANA#U0 supports full in-system programming via its on-chip debug interface using the P50/P51 TOOLRxD/TOOLTxD pins. It includes boot swap functionality and flash shield window protection to prevent unauthorized access to code memory. Self-programming of both code and data flash is supported under VDD = 1.8–5.5 V, with background operation (BGO) enabling concurrent code execution during data flash writes - a critical capability for secure, fail-safe firmware updates in the R5F104GDANA#U0.

What analog features are integrated into the R5F104GDANA#U0, and how are they calibrated?

The R5F104GDANA#U0 integrates a 10-bit, 16-channel successive-approximation ADC with internal 1.45 V reference voltage and factory-trimmed temperature sensor. It also includes an 8-bit dual-channel DAC (0–VDD output) and two independent comparators with selectable internal/external reference. ADC offset/gain calibration values are stored in dedicated ROM areas and applied automatically during initialization. The temperature sensor accuracy is ±2.5°C over –40°C to +85°C, verified per R5F104GDANA#U0 production test data.

How does the Event Link Controller (ELC) improve real-time responsiveness in the R5F104GDANA#U0?

The ELC in the R5F104GDANA#U0 enables direct hardware-level linking of 19–26 peripheral event sources (e.g., ADC conversion complete, UART receive interrupt, timer overflow) to target functions (e.g., DMA trigger, port toggle, timer start) without CPU involvement. This reduces interrupt latency to zero cycles for linked actions, eliminates ISR overhead, and ensures deterministic timing - essential for closed-loop control in applications like motor commutation or synchronized sensor sampling on the R5F104GDANA#U0.

What are the power supply requirements and decoupling recommendations for the R5F104GDANA#U0?

The R5F104GDANA#U0 requires a single 1.6–5.5 V supply on VDD, with separate VSS return. A 0.47–1 μF ceramic capacitor must be placed between REGC and VSS (close to the pin) to stabilize the internal voltage regulator. Additional 100 nF decoupling capacitors are recommended on each VDD pin, and a bulk 4.7 μF tantalum or ceramic capacitor should be placed near the power entry point. These values are specified in the R5F104GDANA#U0 hardware design guidelines and validated across all operating conditions.