Renesas R5F10RGAAFB#V0

Overview

R5F10RGAAFB#V0 from Renesas is a 48-pin LFQFP, 16 KB flash, 1 KB RAM, RL78/L12 16-bit microcontroller with integrated LCD controller/driver (up to 39 seg × 4 com), 10-bit ADC (10 channels), RTC, and ultra-low-power operation (0.64 µA in Halt mode with RTC + LVD). It targets battery-powered LCD display systems such as smart meters and portable medical devices.

For engineers reviewing the R5F10RGAAFB#V0 datasheet, R5F10RGAAFB#V0 pinout, R5F10RGAAFB#V0 application, or R5F10RGAAFB#V0 equivalent, key selection criteria include its 48-pin LFQFP-0.5 mm pitch package, 16 KB code flash with 2 KB data flash, 1.6–5.5 V supply range, and LCD drive capability supporting capacitor split and internal boost methods.

Technical Context

The R5F10RGAAFB#V0 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 low-power architecture includes multiple sleep modes-Stop (0.23 µA), Halt (0.64 µA), and Snooze-with on-chip high-speed oscillator ±1% accuracy across voltage (1.8–5.5 V) and temperature (−20°C to +85°C).

It integrates a full-featured LCD controller supporting waveform A/B, 16-step contrast adjustment, blinking, and three drive methods; a 10-bit ADC with internal 1.45 V reference and 2.1 µs conversion time; and dual communication interfaces including UART, I²C, and two CSI (SPI-compatible) channels-all operating down to 1.6 V.

Key Specifications

Pinout & Package

Package: 48-pin LFQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, consumer-grade (−40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10RGAAFB#V0, the R5F10RFAAFB#V0 offers lower memory capacity at reduced cost, while the R5F10RGCAF#V0 provides scalable headroom for firmware growth - both retain identical pinout, LCD capabilities, and ultra-low-power behavior.

Availability

R5F10RGAAFB#V0 is available at Aetrix Electronics and suitable for smart energy meters, portable medical devices, home appliance control panels, and industrial sensor display units requiring stable component supply across long production lifecycles.

Supply support for R5F10RGAAFB#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 automotive, industrial, and IoT markets.

The RL78/L12 product line is designed specifically for ultra-low-power LCD-based applications - integrating LCD drivers, RTC, and sub-µA sleep modes to minimize system-level power and component count.

FAQ

What is the maximum operating frequency and performance of the R5F10RGAAFB#V0?

The R5F10RGAAFB#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 just 1–2 clock cycles, enabling responsive real-time control in LCD-based applications without external clock sources.

Does the R5F10RGAAFB#V0 support LCD drive with internal voltage boosting?

Yes, the R5F10RGAAFB#V0 supports LCD operation using the internal voltage boost method, delivering 0.63 µA typical current at VDD = 3.0 V. This eliminates the need for external charge pumps in many low-power display designs, simplifying bill-of-materials and reducing board space.

What are the low-power consumption figures for R5F10RGAAFB#V0 in different sleep modes?

The R5F10RGAAFB#V0 achieves 0.23 µA in Stop mode (RAM retained), 0.64 µA in Halt mode (RTC + LVD active), and 62.5 µA/MHz during active operation. These values are measured at 1.8–5.5 V and −20°C to +85°C, making it suitable for decade-long battery operation in metering and portable devices.

Can the R5F10RGAAFB#V0 perform ADC conversions while in low-power modes?

No - the 10-bit ADC requires CPU clock domain activation and cannot operate autonomously in Stop or Halt modes. However, it supports fast wake-up from Halt mode (< 4 µs) to initiate conversions, preserving overall system energy efficiency in duty-cycled sensing applications.

Is the R5F10RGAAFB#V0 pin-compatible with other RL78/L12 variants in the 48-pin LFQFP package?

Yes, all RL78/L12 48-pin LFQFP variants - including R5F10RFAAFB#V0 (8 KB), R5F10RGAAFB#V0 (16 KB), and R5F10RGCAF#V0 (32 KB) - share identical pinouts, electrical characteristics, and peripheral mapping, enabling seamless memory-scaling upgrades without PCB redesign.