Renesas R5F10RLCGFA#V0

Overview

R5F10RLCGFA#V0 from Renesas is a 64-pin LQFP-packaged 16-bit RL78/L12 microcontroller with 32 KB flash, 2 KB data flash, 1.5 KB RAM, integrated LCD controller/driver (up to 39 seg × 4 com), and ultra-low-power operation (0.64 µA in RTC+LVD halt mode). It targets battery-powered LCD display systems such as smart meters and portable medical devices.

For engineers reviewing the R5F10RLCGFA#V0 datasheet, R5F10RLCGFA#V0 pinout, R5F10RLCGFA#V0 application, or R5F10RLCGFA#V0 equivalent, key selection criteria include its 32 KB code flash density, 64-pin LQFP-0.65 mm pitch package, 1.6–5.5 V wide supply range, on-chip LCD drive capability, and IEC 60730 safety features for Class B compliance.

Technical Context

The R5F10RLCGFA#V0 implements the RL78 16-bit CISC Harvard architecture with 3-stage pipeline, delivering 31 DMIPS at 24 MHz. Its CPU supports single-cycle 16×16 multiply and MAC operations, 16-bit barrel shift, and 1-wire on-chip debug.

It integrates a dual-clock system: high-speed on-chip oscillator (24 MHz ±1% over voltage/temperature) and low-frequency subsystem clock (32.768 kHz crystal support), enabling precise RTC calendar functions and flexible power-state management including snooze mode.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (12 mm × 12 mm, 0.65 mm pitch), RoHS-compliant, industrial-grade (−40°C to +105°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10RLCGFA#V0, R5F10RLAGFA#V0 trades flash capacity for cost reduction while retaining identical packaging and peripheral set, whereas R5F10RJCGFA#V0 reduces pin count and physical footprint at the expense of LCD segment count and I/O availability.

Availability

R5F10RLCGFA#V0 is available at Aetrix Electronics and suitable for smart energy metering, portable medical device interfaces, and industrial HMI applications requiring stable component supply across extended product lifecycles.

Supply support for R5F10RLCGFA#V0 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 industrial, automotive, and IoT markets.

The RL78/L12 product line delivers ultra-low-power, LCD-optimized MCUs targeting battery-operated consumer and industrial displays with integrated timing, safety, and human-interface functionality.

FAQ

What is the maximum operating frequency and performance of the R5F10RLCGFA#V0?

The R5F10RLCGFA#V0 operates at up to 24 MHz using its high-speed on-chip oscillator, delivering 31 DMIPS of processing performance. Its RL78 CPU core executes 86% of instructions in 1–2 clock cycles, and supports single-cycle 16×16 multiply and MAC operations - making it suitable for real-time sensor processing and display control in the R5F10RLCGFA#V0.

Does the R5F10RLCGFA#V0 support external crystal oscillators for precise timing?

Yes, the R5F10RLCGFA#V0 supports two independent crystal oscillator circuits: main system clock (X1/X2 pins, 1–20 MHz) and subsystem clock (XT1/XT2 pins, 32.768 kHz). The latter enables highly accurate real-time clock operation with calendar and alarm functions - a core capability of the R5F10RLCGFA#V0 for time-stamped logging and wake-up scheduling.

How does the R5F10RLCGFA#V0 manage ultra-low-power operation in battery-powered applications?

The R5F10RLCGFA#V0 achieves 0.64 µA current draw in Halt mode with RTC and LVD active, and 62.5 µA/MHz in active mode. It supports Snooze mode for partial peripheral operation during low-power states, and its LCD controller operates at just 0.12 µA (capacitor split method) - enabling multi-year battery life in devices like gas meters and portable diagnostics where the R5F10RLCGFA#V0 serves as the primary system controller.

What LCD configuration options does the R5F10RLCGFA#V0 support?

The R5F10RLCGFA#V0 supports three LCD drive methods: capacitor split (0.12 µA), internal voltage boost (0.63 µA at 3.0 V), and external resistor division. It drives up to 39 segments and 4 commons (or 35 seg × 8 com), with programmable contrast (16 steps) and blinking control - allowing flexible display design without external bias ICs in the R5F10RLCGFA#V0-based system.

Which safety certifications does the R5F10RLCGFA#V0 support out of the box?

The R5F10RLCGFA#V0 includes hardware-level safety features aligned with IEC 60730 Class B requirements: flash memory CRC calculation, RAM parity error detection, SFR write protection, illegal memory access monitoring, and clock frequency detection. These features reduce software certification effort and are integral to the R5F10RLCGFA#V0's architecture for white goods and industrial control applications.