Renesas R5F104CFGLA#U0

Overview

R5F104CFGLA#U0 from Renesas is a 36-pin WFLGA-packaged RL78/G14 16-bit microcontroller with 16 KB flash, 2.5 KB RAM, and 4 KB data flash, operating from 1.6–5.5 V at -40 to +105°C (industrial G-grade). It delivers 44 DMIPS at 32 MHz, features ultra-low-power HALT/STOP/SNOOZE modes (0.60 μA RTC+LVD), and integrates 10-bit ADC (12 channels), UART/SPI/I²C interfaces, RTC, and on-chip debug.

For engineers reviewing the R5F104CFGLA#U0 datasheet, R5F104CFGLA#U0 pinout, R5F104CFGLA#U0 application, or R5F104CFGLA#U0 equivalent, this page provides verified technical context, package mapping, real-world use cases, and validated alternative options for industrial sensor nodes, battery-powered HMI controls, and embedded motor management systems.

Technical Context

The R5F104CFGLA#U0 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 supports multiply/divide/accumulate instructions and 1 MB address space with four register banks.

It integrates a high-accuracy ±1.0% on-chip oscillator (selectable 1–64 MHz), Event Link Controller (ELC) for peripheral event chaining, Data Transfer Controller (DTC) with block/repeat transfer modes, and background operation (BGO) for concurrent code execution during data flash rewriting.

Key Specifications

Pinout & Package

Package: 36-pin WFLGA (4 × 4 mm, 0.5 mm pitch), industrial G-grade, exposed pad recommended to be connected to VSS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104CFGLA#U0, R5F104BEGLA#U0 offers 3× flash/RAM headroom for complex connectivity, while R5F104CGGLA#U0 provides 2× flash with identical data flash and thermal rating - both retain pin compatibility and identical peripheral sets for seamless migration.

Availability

R5F104CFGLA#U0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controls, and brushless motor monitors requiring stable component supply across extended product lifecycles.

Supply support for R5F104CFGLA#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, and power solutions for automotive, industrial, and IoT markets.

The RL78/G14 family targets cost-sensitive, ultra-low-power embedded applications requiring robust industrial qualification, integrated analog peripherals, and secure firmware update capability.

FAQ

What is the maximum operating frequency and corresponding performance of the R5F104CFGLA#U0?

The R5F104CFGLA#U0 operates at up to 32 MHz, delivering 44 DMIPS of processing performance. This speed is achieved using the high-speed on-chip oscillator with ±1.0% accuracy across 1.8–5.5 V and -40 to +105°C. The RL78 core's 3-stage pipeline and optimized instruction set ensure deterministic timing for real-time control tasks in the R5F104CFGLA#U0.

Does the R5F104CFGLA#U0 support in-application programming of its data flash memory?

Yes, the R5F104CFGLA#U0 supports background operation (BGO) for data flash rewriting. Code execution continues from program memory while data flash is being rewritten, enabling seamless firmware parameter updates or calibration storage without halting application logic. The R5F104CFGLA#U0 guarantees 1,000,000 write cycles at VDD = 1.8–5.5 V.

What package type and pin count does the R5F104CFGLA#U0 use?

The R5F104CFGLA#U0 uses a 36-pin WFLGA (Wafer-Level Glass Array) package measuring 4 × 4 mm with 0.5 mm pitch. This surface-mount package is qualified for industrial G-grade operation (-40 to +105°C) and requires connection of the REGC pin to VSS via a 0.47–1 µF capacitor for stable internal regulation.

How many analog input channels does the R5F104CFGLA#U0 ADC support, and what is its resolution?

The R5F104CFGLA#U0 integrates a 10-bit successive-approximation ADC with up to 12 analog input channels (ANI0–ANI7, plus VCOUT0/VCOUT1, ANI16–ANI19). It operates across the full 1.6–5.5 V supply range and includes internal reference voltage (1.45 V) and temperature sensor - all confirmed in the R5F104CFGLA#U0 datasheet section 1.1.

Is the R5F104CFGLA#U0 qualified for industrial temperature ranges?

Yes, the R5F104CFGLA#U0 carries the 'G' suffix indicating industrial qualification with guaranteed operation from -40 to +105°C. This rating applies to the full feature set including flash programming, ADC accuracy, and real-time clock functionality - making the R5F104CFGLA#U0 suitable for under-hood automotive modules and factory automation equipment.