Renesas R5F10RBAAFP#V0

Overview

R5F10RBAAFP#V0 from Renesas is a 32-pin, 16 KB flash, 1 KB RAM RL78/L12 16-bit microcontroller with integrated LCD controller/driver (up to 35 seg × 4 com), 10-bit ADC (10 channels), RTC, and ultra-low-power operation (0.64 µA in Halt mode with RTC + LVD). It operates from 1.6 V to 5.5 V and delivers 31 DMIPS at 24 MHz, targeting battery-powered LCD display applications such as smart meters and portable medical devices.

For engineers reviewing the R5F10RBAAFP#V0 datasheet, R5F10RBAAFP#V0 pinout, R5F10RBAAFP#V0 application, or R5F10RBAAFP#V0 equivalent, key selection criteria include its 32-pin LQFP-0.8 mm pitch package, on-chip LCD drive capability with capacitor-split and internal boost methods, 2 KB data flash with 1 million erase cycles, and IEC/UL 60730 safety features for certified embedded control.

Technical Context

The R5F10RBAAFP#V0 implements the RL78 CPU core with Harvard architecture, 3-stage pipeline, and CISC instruction set enabling 86% of instructions in 1–2 clock cycles. It integrates a high-speed on-chip oscillator (24 MHz ±1% over voltage/temperature) and supports snooze mode for low-latency wake-up from ultra-low-power states.

Its peripheral set includes UART, two CSI (SPI-compatible) interfaces, I²C, DMA (2 channels), and an LCD controller supporting waveform types A/B, contrast adjustment (16 steps), and blinking - all managed via dedicated RAM space and configurable segment/com drivers without external components.

Key Specifications

Pinout & Package

Package: 32-pin plastic LQFP (7 mm × 7 mm, 0.8 mm pitch), RoHS-compliant, tray packaging (#V0).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10RBAAFP#V0, R5F10RBCAFP#V0 offers double flash capacity in the same footprint for scalable firmware, while R5F10RFAGFP#V0 trades compactness for expanded I/O and LCD flexibility - neither is drop-in but both share identical core architecture and toolchain support.

Availability

R5F10RBAAFP#V0 is available at Aetrix Electronics and suitable for smart metering, portable medical displays, home appliance panels, and industrial sensor nodes requiring stable component supply across long-lifecycle designs.

Supply support for R5F10RBAAFP#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 optimized peripherals like segment drivers, RTC, and safety monitors to minimize external components and system-level power consumption.

FAQ

What is the maximum operating frequency and performance of the R5F10RBAAFP#V0?

The R5F10RBAAFP#V0 operates at up to 24 MHz using its high-speed on-chip oscillator, delivering 31 DMIPS. Its RL78 CPU core executes 86% of instructions in just 1–2 clock cycles due to its 3-stage pipeline and CISC architecture, enabling responsive real-time control in LCD applications.

Does the R5F10RBAAFP#V0 support external crystal oscillators?

Yes, the R5F10RBAAFP#V0 supports external crystals on X1/P121 and X2/P122 pins for main system clock operation, as well as XT1/P123 and XT2/P124 for subsystem clock (e.g., 32.768 kHz RTC). The high-speed on-chip oscillator provides ±1% accuracy across 1.8–5.5 V and −20°C to +85°C.

How many LCD segments and commons does the R5F10RBAAFP#V0 support?

The R5F10RBAAFP#V0 supports up to 35 segment × 4 common or 39 segment × 4 common LCD configurations. It provides four dedicated COM0–COM3 outputs and drives SEG0–SEG32 plus SEG27–SEG28 on port pins, with flexible waveform type (A/B) and 16-step contrast control.

What safety certifications or features does the R5F10RBAAFP#V0 include?

The R5F10RBAAFP#V0 includes hardware-level safety features aligned with IEC/UL 60730 Class B: flash memory CRC calculation, RAM parity error checking, SFR write protection, illegal memory access detection, clock frequency monitoring, and ADC self-test - all implemented in silicon without software overhead.

Is the R5F10RBAAFP#V0 pin-compatible with other RL78/L12 variants?

The R5F10RBAAFP#V0 is pin-compatible with other 32-pin RL78/L12 variants in the same package (e.g., R5F10RB8AFP#V0 and R5F10RBCAFP#V0), sharing identical pin count, pitch, and function mapping. However, it is not compatible with 44-pin or larger packages like R5F10RFAGFP#V0.