Renesas R5F10RBAAFP#30

Overview

R5F10RBAAFP#30 from Renesas is an 8 KB flash, 1 KB RAM, 32-pin LQFP (7×7 mm, 0.8 mm pitch) RL78/L12 microcontroller optimized for ultra-low-power LCD-based consumer applications. It integrates an on-chip LCD controller/driver (up to 35 seg × 8 com), 10-bit ADC (10 channels), RTC with calendar/alarm, and operates from 1.6 V to 5.5 V at up to 24 MHz delivering 31 DMIPS.

For engineers reviewing the R5F10RBAAFP#30 datasheet, R5F10RBAAFP#30 pinout, R5F10RBAAFP#30 application, or R5F10RBAAFP#30 equivalent, key selection criteria include its 0.64 µA halt-mode current (RTC + LVD), 62.5 µA/MHz active power, integrated LCD bias generation, and support for capacitor-split or internal-boost LCD drive methods in space-constrained consumer instrumentation.

Technical Context

The R5F10RBAAFP#30 implements the 16-bit RL78 CPU core with Harvard architecture and 3-stage pipeline, enabling 86% of instructions in 1–2 clock cycles. Its low-power design includes multiple sleep modes (Stop: 0.23 µA, Halt: 0.64 µA), snooze mode for peripheral-triggered wake-up, and a high-speed on-chip oscillator (24 MHz ±1% over voltage/temperature).

It features dedicated LCD hardware supporting waveform types A/B, 16-step contrast control, blinking, and three drive methods-capacitor split (0.12 µA LCD current), internal boost (0.63 µA at VDD = 3.0 V), and resistance division-with independent VL1–VL4 and CAPL/CAPH pins for external bias network configuration.

Key Specifications

Pinout & Package

Package: 32-pin plastic LQFP (7 × 7 mm, 0.8 mm pitch), RoHS-compliant, tray packaging (#30 suffix).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10RFAAFP#30 and R5F10RGAAFB#30, the R5F10RBAAFP#30 provides the smallest footprint and lowest BOM cost for basic LCD instrumentation, trading pin count and flash size for minimal board area and power - optimal where 32-pin I/O and 8 KB code suffice.

Availability

R5F10RBAAFP#30 is available at Aetrix Electronics and suitable for smart energy meters, portable medical devices, home appliance control panels, and industrial panel meters requiring stable component supply across long production lifecycles.

Supply support for R5F10RBAAFP#30 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 targets ultra-low-power LCD-based consumer and industrial applications, integrating specialized display peripherals, precision timing, and energy-efficient processing to replace discrete display controllers and reduce system-level power consumption.

FAQ

What is the maximum operating frequency and performance of the R5F10RBAAFP#30?

The R5F10RBAAFP#30 operates at up to 24 MHz using its high-speed on-chip oscillator, delivering 31 DMIPS of processing performance. Its 16-bit RL78 core executes 86% of instructions in just 1–2 clock cycles, and minimum instruction time is 0.04167 µs. The device maintains ±1% oscillator accuracy across 1.8 V–5.5 V and −20°C to +85°C, making it suitable for timing-critical LCD refresh and sensor sampling tasks in the R5F10RBAAFP#30.

Does the R5F10RBAAFP#30 support multiple LCD drive methods, and how are they configured?

Yes, the R5F10RBAAFP#30 supports capacitor-split, internal voltage boost, and resistance division LCD drive methods - selected via LCD control register bits (LCDCR). Capacitor-split achieves 0.12 µA LCD current; internal boost delivers 0.63 µA at VDD = 3.0 V with VL1–VL4 and CAPH/CAPL pins; resistance division uses external resistors. All methods support waveform types A/B and 16-step contrast adjustment, enabling display optimization without hardware changes in the R5F10RBAAFP#30.

What are the low-power modes supported by the R5F10RBAAFP#30, and what is the current draw in each?

The R5F10RBAAFP#30 supports Stop mode (0.23 µA, RAM retained), Halt mode (0.64 µA, RTC + LVD active), and Snooze mode (fast wake from peripheral events). Active-mode current is 62.5 µA/MHz. These values are measured at VDD = 3.0 V, TA = 25°C per R01DS0157EJ0223 Rev.2.23. The R5F10RBAAFP#30 achieves these figures using dynamic voltage scaling, clock gating, and dedicated low-leakage circuitry - critical for battery longevity in portable R5F10RBAAFP#30 designs.

Can the R5F10RBAAFP#30 drive a 35-segment × 8-common LCD, and what pins are used?

Yes, the R5F10RBAAFP#30 supports up to 35 segments × 8 commons using its integrated LCD controller/driver. It allocates SEG0, SEG4–SEG6, SEG19–SEG21, SEG27–SEG32 (13 seg), plus COM0–COM3 (4 com) - extended to 8 com via software reconfiguration. Pins include P10–P17 (SEG28–SEG31), P126/CAPL, P127/CAPH, VL1–VL4, and P30–P32 (SEG17–SEG19). This full mapping is confirmed in the R5F10RBAAFP#30 datasheet Figure 1-1 and Section 1.3.1.

What debug interface does the R5F10RBAAFP#30 provide, and how is it implemented?

The R5F10RBAAFP#30 provides a single-wire on-chip debug interface using the TOOL0 pin (P40), compliant with Renesas' E1/E20 emulator protocol. It supports full break functionality, memory read/write, and real-time trace without requiring additional pins or external debug headers. This eliminates JTAG overhead and reduces PCB complexity - a key enabler for compact, cost-sensitive R5F10RBAAFP#30 implementations in consumer electronics.