Renesas R5F10ELCAFB#V0

Overview

R5F10ELCAFB#V0 from Renesas Electronics is a 64-pin LFQFP 16 KB Flash RL78/G1A 16-bit microcontroller with 2 KB RAM, 4 KB data flash, 28-channel 12-bit ADC, and ultra-low-power operation (66 µA/MHz active, 0.57 µA RTC+LVD). It integrates UART, I²C, SPI, LIN, RTC, PWM, and on-chip debug for embedded control in battery-powered industrial sensors.

For engineers reviewing the R5F10ELCAFB#V0 datasheet, R5F10ELCAFB#V0 pinout, R5F10ELCAFB#V0 application, or R5F10ELCAFB#V0 equivalent, key selection criteria include its 64-pin LFQFP package, 16 KB code flash with secure boot swap, 12-bit ADC supporting 1.6 V analog input, and dual power domains (VDD/EVDD0) for noise-sensitive mixed-signal designs.

Technical Context

The R5F10ELCAFB#V0 implements the RL78 CPU core with Harvard architecture, 3-stage pipeline, and 86% of instructions executed in 1–2 clock cycles. It supports 32 MHz max operation via high-speed on-chip oscillator (±1% accuracy from 1.8–3.6 V), with independent subsystem clock (32.768 kHz XT1/EXCLKS) for RTC.

Its peripheral set includes eight 16-bit timer channels, two programmable buzzer/clock outputs (PCLBUZ0/PCLBUZ1), DMA controller with two channels, and safety features including flash CRC, RAM parity, SFR write protection, and illegal memory access detection per IEC/UL 60730.

Key Specifications

Pinout & Package

64-pin LFQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant, tray-packaged (#V0). Dual power domains: VDD/EVDD0 and VSS/EVSS0 enable noise-isolated analog/digital partitioning.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10ELDAFB#V0, the R5F10ELCAFB#V0 trades flash/RAM headroom for identical footprint and lower BOM cost; versus R5F10EGCAFB#V0, it adds 14 I/O pins, full port 7 functionality, and EVDD0/EVSS0 isolation - enabling higher-integration, noise-critical applications.

Availability

R5F10ELCAFB#V0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, home appliance controllers, and automotive body electronics requiring stable component supply and long-term lifecycle support.

Supply support for R5F10ELCAFB#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 Corporation is a global semiconductor leader headquartered in Tokyo, Japan, delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/G1A product line targets ultra-low-power embedded control applications, emphasizing energy efficiency, functional safety, and rapid development through integrated peripherals and toolchain support.

FAQ

What is the maximum operating frequency and power consumption of the R5F10ELCAFB#V0?

The R5F10ELCAFB#V0 operates at up to 32 MHz using its high-speed on-chip oscillator (±1% accuracy) and achieves 41 DMIPS performance. In active mode, it consumes 66 µA per MHz; in halt mode with RTC and LVD enabled, it draws just 0.57 µA - making it ideal for battery-powered systems where runtime and wake-up latency are critical. The R5F10ELCAFB#V0 maintains this efficiency across its 1.6–3.6 V supply range.

Does the R5F10ELCAFB#V0 support secure firmware updates?

Yes, the R5F10ELCAFB#V0 includes hardware-assisted secure boot swap functionality and a flash shield window feature that prevents unauthorized read/write access to protected code regions. These capabilities enable authenticated, encrypted firmware updates in the field without exposing intellectual property - a requirement for certified industrial and medical devices. The R5F10ELCAFB#V0 implements these features natively in its flash controller.

How many analog input channels does the R5F10ELCAFB#V0 support, and what is the minimum analog supply voltage?

The R5F10ELCAFB#V0 integrates a 28-channel 12-bit successive approximation ADC with 3.375 µs conversion time. It supports analog input operation down to 1.6 V, allowing direct interfacing with low-voltage sensors and energy-harvesting sources. Internal voltage reference (1.45 V) and dedicated AVREFP/AVREFM pins ensure precision across temperature and supply variations. This capability is fully specified for the R5F10ELCAFB#V0 in its datasheet.

What safety certifications does the R5F10ELCAFB#V0 meet for industrial applications?

The R5F10ELCAFB#V0 is designed to support IEC 60730 Class B and UL 60730 compliance, with built-in hardware safety mechanisms including flash memory CRC calculation, RAM parity error detection, SFR write protection, illegal memory access detection, clock stop/frequency monitoring, and ADC self-test. These features are documented in the R5F10ELCAFB#V0's functional safety manual and enable certified system-level certification without external supervision ICs.

Can the R5F10ELCAFB#V0 operate with separate analog and digital power supplies?

Yes, the R5F10ELCAFB#V0 provides dedicated AVDD/AVSS pins for analog circuitry and dual digital supplies: VDD (core/logic) and EVDD0 (port I/O), with corresponding VSS/EVSS0 grounds. This architecture allows physical PCB separation of analog and digital power domains - essential for achieving high-precision ADC results in noise-sensitive applications like energy metering or sensor signal conditioning. The R5F10ELCAFB#V0's datasheet specifies layout guidelines for optimal isolation.