Renesas R5F104PLGFA#30

Overview

R5F104PLGFA#30 from Renesas is a 100-pin LFQFP, 0.5 mm pitch, industrial-grade (G) RL78/G14 16-bit MCU with 384 KB flash, 8 KB data flash, 32 KB RAM, and operation from −40°C to +105°C. It integrates a 32 MHz RL78 CPU core delivering 44 DMIPS, ultra-low power consumption (66 μA/MHz active, 0.60 μA RTC+LVD), and peripherals including 12-channel 10-bit ADC, dual DAC, RTC, 16-bit timers, UART/LIN, I²C, CSI, and DTC/ELC for sensor control and motor drive in embedded industrial systems.

For engineers reviewing the R5F104PLGFA#30 datasheet, R5F104PLGFA#30 pinout, R5F104PLGFA#30 application, or R5F104PLGFA#30 equivalent, key selection criteria include its 100-pin LFQFP-0.5 mm package, G-grade temperature rating, integrated voltage detector (14-level LVD), background data flash rewriting (BGO), and support for real-time output DAC and calendar-mode RTC-critical for long-life, low-maintenance industrial controllers.

Technical Context

The R5F104PLGFA#30 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). Its power management includes HALT, STOP, and SNOOZE modes, plus on-chip POR and 14-level LVD for robust brown-out handling in fluctuating supply environments.

Peripheral integration centers on event-driven efficiency: the Event Link Controller (ELC) enables direct hardware linking of up to 26 event sources to peripherals without CPU intervention, while the Data Transfer Controller (DTC) supports block, repeat, and chain transfers triggered by interrupts-enabling deterministic sensor sampling and actuator response in real-time control loops.

Key Specifications

Pinout & Package

Package: 100-pin LFQFP, 14 × 14 mm body, 0.5 mm pitch, exposed thermal pad (recommended to connect to VSS).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104MLGFB#30, the R5F104PLGFA#30 provides 128 KB more flash and 8 KB more RAM for larger firmware, data logging, or multi-protocol stacks; compared with R5F104PLGFA#50, it offers identical electrical and functional performance but in tray packaging for prototyping or low-volume assembly.

Availability

R5F104PLGFA#30 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, PLC I/O modules, and power supply monitors requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for R5F104PLGFA#30 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 family targets cost-sensitive, ultra-low-power industrial and consumer applications requiring high integration, robustness, and long-term supply stability-designed specifically for sensor hubs, motor drives, and intelligent power devices.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating of the R5F104PLGFA#30?

The R5F104PLGFA#30 operates at up to 32 MHz with its RL78 CPU core, delivering 44 DMIPS (Dhrystone MIPS) performance. This is achieved using the high-speed on-chip oscillator, which supports ±1.0% accuracy across 1.8–5.5 V and −20°C to +85°C-ensuring deterministic timing for real-time control tasks without external crystal dependency.

Does the R5F104PLGFA#30 support background data flash rewriting while executing application code?

Yes, the R5F104PLGFA#30 supports Background Operation (BGO) for data flash. This allows the CPU to execute instructions from program memory while simultaneously rewriting data flash memory-enabling seamless firmware updates, parameter storage, or calibration data logging without interrupting real-time control execution in the R5F104PLGFA#30.

What is the purpose of the REGC pin on the R5F104PLGFA#30, and how must it be connected?

The REGC pin on the R5F104PLGFA#30 is the regulator bypass capacitor terminal for the internal voltage regulator. It must be connected to VSS via a 0.47 µF to 1.0 µF ceramic capacitor placed as close as possible to the pin. Failure to do so risks unstable internal voltage regulation, leading to erratic operation or failure to enter low-power modes reliably in the R5F104PLGFA#30.

How many analog input channels does the R5F104PLGFA#30's 10-bit ADC support, and what reference options are available?

The R5F104PLGFA#30 integrates a 10-bit successive-approximation ADC with up to 20 analog input channels. It supports VDD as the reference voltage and includes an internal 1.45 V reference for ratiometric measurements independent of supply variation-critical for precision sensor interfaces in the R5F104PLGFA#30.

Is the R5F104PLGFA#30 pin-compatible with other RL78/G14 variants in the same 100-pin LFQFP package?

Yes, the R5F104PLGFA#30 is pin-compatible with all other RL78/G14 MCUs in the 100-pin LFQFP-0.5 mm package (e.g., R5F104MLGFB#30, R5F104PKGFA#30), sharing identical pin functions, power domains, and peripheral mappings. This enables drop-in replacement for code-size or memory-capacity optimization without PCB redesign for the R5F104PLGFA#30.