Renesas R5F10RLCGFA#X0

Overview

R5F10RLCGFA#X0 from Renesas is a 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch) 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#X0 datasheet, R5F10RLCGFA#X0 pinout, R5F10RLCGFA#X0 application, or R5F10RLCGFA#X0 equivalent, key selection criteria include its 32 KB code flash density, 64-pin LFQFP package with dedicated LCD segment/com drivers, 1.6–5.5 V wide supply range, and IEC/UL 60730 safety features for certified embedded control.

Technical Context

The R5F10RLCGFA#X0 implements the RL78 CPU core delivering 31 DMIPS at 24 MHz, with 86% of instructions executed in 1–2 clock cycles and hardware multiply-accumulate support. Its on-chip high-speed oscillator achieves ±1% accuracy across 1.8–5.5 V and −20°C to +85°C.

It integrates a full-featured LCD controller supporting capacitor split, internal voltage boost, and resistance division methods, plus real-time clock with calendar/alarm, 10-channel 10-bit ADC (2.1 µs conversion), and dual DMA channels - all optimized for low-voltage, low-power human-interface applications.

Key Specifications

Pinout & Package

Package: LFQFP-64 (10 × 10 mm, 0.5 mm pitch), industrial temperature grade (−40°C to +105°C), with exposed die pad connected to VSS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10RLCGFA#X0, R5F10RLAGFA#X0 reduces flash capacity while retaining identical packaging and temperature rating, whereas R5F10RJCGFA#X0 trades pin count and analog isolation (no EVDD/EVSS) for smaller footprint - both require PCB layout changes and firmware validation.

Availability

R5F10RLCGFA#X0 is available at Aetrix Electronics and suitable for smart energy meters, portable medical devices, industrial HMI panels, and home appliance displays requiring stable component supply and long-term lifecycle support.

Supply support for R5F10RLCGFA#X0 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/L12 product line delivers ultra-low-power, LCD-optimized MCUs targeting battery-operated consumer and industrial display applications with integrated safety and mixed-signal peripherals.

FAQ

What is the maximum operating frequency and performance of the R5F10RLCGFA#X0?

The R5F10RLCGFA#X0 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 just 1–2 clock cycles, enabling responsive real-time control in LCD-based applications while maintaining ultra-low power consumption.

Does the R5F10RLCGFA#X0 support multiple LCD drive methods?

Yes, the R5F10RLCGFA#X0 supports three LCD drive methods: capacitor split, internal voltage boost, and external resistance division. This flexibility allows designers to match the optimal drive scheme to their specific LCD panel's voltage and contrast requirements without external components.

What safety certifications does the R5F10RLCGFA#X0 support for embedded applications?

The R5F10RLCGFA#X0 includes hardware-level safety features required for IEC 60730 Class B and UL 60730 compliance, including flash memory CRC calculation, RAM parity error checking, SFR write protection, illegal memory access detection, and clock frequency monitoring - all implemented in silicon.

How much current does the R5F10RLCGFA#X0 consume in low-power modes?

In halt mode with only RTC and LVD active, the R5F10RLCGFA#X0 consumes 0.64 µA. In stop mode with RAM retained, it draws 0.23 µA (LVD disabled) or 0.31 µA (LVD enabled). Active-mode current is 62.5 µA per MHz, enabling multi-year battery life in always-on display applications.

What is the LCD segment and common drive capability of the R5F10RLCGFA#X0?

The R5F10RLCGFA#X0 supports up to 39 segment outputs and 8 common outputs, configurable for up to 39 × 4 or 35 × 8 multiplexed LCD displays. Segment and common pins are distributed across multiple ports (P4–P7, P14, P15–P17) to simplify PCB routing for large segmented displays.