Renesas R5F10RFCAFP#30

Overview

R5F10RFCAFP#30 from Renesas is a 44-pin LQFP, 32 KB flash, 2 KB data flash, 1.5 KB RAM RL78/L12 16-bit microcontroller optimized for LCD-based consumer applications. It delivers 31 DMIPS at 24 MHz, operates from 1.6 V to 5.5 V, achieves 62.5 µA/MHz active current and 0.64 µA RTC+LVD halt mode, and integrates an on-chip LCD controller supporting up to 39 seg × 4 com.

For engineers reviewing the R5F10RFCAFP#30 datasheet, R5F10RFCAFP#30 pinout, R5F10RFCAFP#30 application, or R5F10RFCAFP#30 equivalent, this page provides verified technical context, real-world use cases, validated alternatives, and supply-chain support for low-power LCD instrumentation designs.

Technical Context

The R5F10RFCAFP#30 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 features a high-speed on-chip oscillator (24 MHz ±1% over voltage/temperature) and supports snooze mode for ultra-low-power LCD refresh.

Its integrated LCD controller supports capacitor split, internal voltage boost, and resistance division methods with 16-step contrast control and blinking. The device includes dual CSI interfaces (SPI-compatible), one I²C, one UART, 10-channel 10-bit ADC, RTC with calendar/alarm, and safety features including flash CRC, RAM parity, and illegal access detection per IEC/UL 60730.

Key Specifications

Pinout & Package

Package: 44-pin plastic LQFP (10 × 10 mm, 0.8 mm pitch), RoHS-compliant, consumer-grade (A suffix).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10RFCAFP#30, R5F10RFAAFP#30 reduces flash by 50% for cost-sensitive volume production, while R5F10RFCGFP#30 maintains full feature parity with enhanced thermal robustness-neither is pin-to-pin compatible due to differing temperature grade markings and qualification testing.

Availability

R5F10RFCAFP#30 is available at Aetrix Electronics and suitable for smart energy meters, home appliance control panels, portable medical devices, and industrial panel meters requiring stable component supply across multi-year production cycles.

Supply support for R5F10RFCAFP#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 is designed specifically for ultra-low-power LCD-based applications such as utility meters, appliances, and portable instrumentation-emphasizing integrated display control, long battery life, and functional safety compliance.

FAQ

What is the maximum operating frequency and performance of the R5F10RFCAFP#30?

The R5F10RFCAFP#30 operates at up to 24 MHz using its high-speed on-chip oscillator and delivers 31 DMIPS. Its RL78 CPU core executes 86% of instructions in 1–2 clock cycles, achieving a minimum instruction time of 0.04167 µs. This performance level supports real-time UI rendering, sensor processing, and communication stack execution in resource-constrained LCD applications.

Does the R5F10RFCAFP#30 support multiple LCD drive methods?

Yes, the R5F10RFCAFP#30 supports three LCD drive methods: capacitor split, internal voltage boost, and external resistance division. It also provides waveform type A and B selection, 16-step contrast adjustment, and programmable blinking-all managed through dedicated LCD control registers without external components.

What are the power consumption characteristics of the R5F10RFCAFP#30 in low-power modes?

In Halt mode with only RTC and LVD active, the R5F10RFCAFP#30 consumes 0.64 µA. Stop mode (RAM retained) draws 0.23 µA (LVD disabled) or 0.31 µA (LVD enabled). Active-mode current is 62.5 µA/MHz, and LCD-specific current is as low as 0.12 µA using the capacitor split method-enabling decade-long battery life in metering applications.

How does the R5F10RFCAFP#30 handle functional safety requirements?

The R5F10RFCAFP#30 includes hardware-level safety features required for IEC/UL 60730 Class B compliance: flash memory CRC calculation, RAM parity error check, RAM and SFR write protection, illegal memory access detection, clock frequency monitoring, and ADC self-test. These features reduce software certification effort in safety-critical consumer and industrial systems.

What communication interfaces are integrated into the R5F10RFCAFP#30?

The R5F10RFCAFP#30 integrates one UART (7-/8-/9-bit), two CSI interfaces (SPI-compatible, 7-/8-bit), one I²C multi-master interface (SCLA0/SDAA0), and supports LIN bus via UART configuration. All interfaces are accessible on dedicated pins and configurable via peripheral I/O redirection register (PIOR) for flexible PCB layout.