Renesas R5F10RGAGFB#V0

Overview

R5F10RGAGFB#V0 from Renesas is a 48-pin LFQFP, industrial-grade (−40°C to +105°C) 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 industrial HMI panels.

For engineers reviewing the R5F10RGAGFB#V0 datasheet, R5F10RGAGFB#V0 pinout, R5F10RGAGFB#V0 application, or R5F10RGAGFB#V0 equivalent, key selection criteria include its 48-pin LFQFP-0.5 mm pitch package, on-chip LCD drive capability with capacitor-split and internal-boost methods, 10-bit ADC with 1.6 V support, and IEC/UL 60730 safety features for functional safety compliance.

Technical Context

The R5F10RGAGFB#V0 implements the RL78 CPU core with Harvard architecture, 3-stage pipeline, and 86% of instructions executed in 1–2 clock cycles. It supports dual-clock domains: high-speed on-chip oscillator (24 MHz ±1% over voltage/temperature) and subsystem clock (32.768 kHz crystal or low-speed on-chip 15 kHz oscillator).

Its peripheral set includes an 8-channel timer array unit, UART, two CSI (SPI-compatible) interfaces, I²C, DMA (2 channels), and a dedicated LCD controller supporting waveform A/B, contrast adjustment (16 steps), blinking, and three drive methods - all configurable without external components.

Key Specifications

Pinout & Package

Package: 48-pin LFQFP (7 mm × 7 mm, 0.5 mm pitch), industrial temperature grade (−40°C to +105°C), tray packaging (#V0).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10RGAGFB#V0, the R5F10RGCGB#V0 offers identical functionality at lower memory cost, while the R5F10RLAGFB#V0 provides scalable I/O and LCD capacity at the expense of package size and layout compatibility.

Availability

R5F10RGAGFB#V0 is available at Aetrix Electronics and suitable for smart metering, industrial HMI, medical diagnostic devices, and home appliance control requiring stable component supply across long product lifecycles.

Supply support for R5F10RGAGFB#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, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/L12 product line is engineered specifically for ultra-low-power LCD-based applications, integrating high-efficiency power management, on-chip LCD drive, and functional safety features to minimize external components and certification overhead.

FAQ

What is the maximum operating frequency and power consumption of the R5F10RGAGFB#V0?

The R5F10RGAGFB#V0 operates at up to 24 MHz using its high-speed on-chip oscillator with ±1% accuracy across 1.8 V–5.5 V and −20°C–85°C. Its active current is 62.5 µA/MHz; halt mode with RTC and LVD enabled draws only 0.64 µA, making it ideal for battery-critical LCD applications. The R5F10RGAGFB#V0 achieves this via optimized RL78 core architecture and dynamic power gating.

Does the R5F10RGAGFB#V0 support multiple LCD drive methods, and how do they differ?

Yes, the R5F10RGAGFB#V0 supports capacitor-split (0.12 µA @ 3.0 V), internal voltage boost (0.63 µA @ 3.0 V), and external resistance division methods. Capacitor-split minimizes current for longest battery life; internal boost eliminates external components for compact designs; resistance division offers flexibility for custom bias networks. All methods are software-selectable via LCD control registers.

What safety certifications or hardware features does the R5F10RGAGFB#V0 include for industrial use?

The R5F10RGAGFB#V0 includes hardware-level safety features aligned with IEC/UL 60730 Class B: flash memory CRC calculation, RAM parity error detection, SFR write protection, illegal memory access detection, clock frequency monitor, and ADC self-test. These features reduce software certification burden and support fail-safe operation in industrial control and appliance applications.

Can the R5F10RGAGFB#V0 operate from a 1.6 V supply, and which peripherals remain functional?

Yes, the R5F10RGAGFB#V0 supports 1.6 V to 5.5 V operation. At 1.6 V, the 10-bit ADC remains fully functional with 1.6 V minimum supply requirement, the real-time clock continues accurate timekeeping, and the low-voltage detection (LVD) circuit operates with 14 programmable thresholds. Core execution and LCD drive (capacitor-split method) also function reliably down to 1.6 V.

How many GPIO pins and LCD segment outputs does the R5F10RGAGFB#V0 provide in its 48-pin LFQFP package?

The R5F10RGAGFB#V0 provides 33 general-purpose CMOS I/O pins and dedicates 11 pins for LCD drive - supporting up to 39 segment outputs and 4 common outputs (39 seg × 4 com) or 35 seg × 8 com when configured for higher resolution. Pin multiplexing is managed via the Peripheral I/O Redirection Register (PIOR) for flexible signal assignment.