Renesas R5F10E8DALA#U0

Overview

R5F10E8DALA#U0 from Renesas is a 25-pin WFLGA-packaged RL78/G1A 16-bit microcontroller with 48 KB flash, 4 KB data flash, 2 KB RAM, 12-bit ADC (28 channels), and ultra-low-power operation down to 0.57 µA in RTC+LVD mode. It integrates UART, I²C, SPI, timers, RTC, and on-chip debug for embedded control in battery-powered industrial sensors and smart peripherals.

For engineers reviewing the R5F10E8DALA#U0 datasheet, R5F10E8DALA#U0 pinout, R5F10E8DALA#U0 application, or R5F10E8DALA#U0 equivalent, key selection criteria include its 25-pin WFLGA (3×3 mm) footprint, 1.6–3.6 V supply range, 32 MHz max CPU frequency delivering 41 DMIPS, and support for real-time clock correction and background data flash programming.

Technical Context

The R5F10E8DALA#U0 implements the RL78 16-bit CISC Harvard architecture with 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 (0.57 µA), and Snooze (0.6–0.7 mA), all supported by integrated LVD and POR circuitry.

It features dual-clock domains-high-speed on-chip oscillator (32 MHz ±1% over voltage/temperature) and low-speed subsystem oscillator (32.768 kHz)-with flexible peripheral clock gating. The 12-bit ADC supports 3.375 µs conversion time, internal 1.45 V reference, and on-chip temperature sensor, all operating down to 1.6 V analog supply.

Key Specifications

Pinout & Package

Package: 25-pin WFLGA (3 × 3 mm, 0.5 mm pitch), bottom-side exposed pad recommended to be connected to VSS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10E8DALA#U0, the R5F10EBDALA#U0 offers greater I/O scalability in a compact 32-pin form factor, while the R5F10EGDALA#U0 delivers full peripheral expansion-including dual I²C and extra SPI-for systems demanding protocol concurrency without external bridging.

Availability

R5F10E8DALA#U0 is available at Aetrix Electronics and suitable for smart energy meters, industrial sensor nodes, home appliance controls, and medical wearables requiring stable component supply across long production lifecycles.

Supply support for R5F10E8DALA#U0 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/G1A product line targets ultra-low-power embedded control applications, emphasizing energy efficiency, functional safety compliance (IEC 60730), and rapid development with integrated debug and self-programming capabilities.

FAQ

What is the maximum operating frequency and performance of the R5F10E8DALA#U0?

The R5F10E8DALA#U0 operates at up to 32 MHz using its high-speed on-chip oscillator, delivering 41 DMIPS of processing performance. Its RL78 16-bit CPU executes 86% of instructions in just one or two clock cycles, and includes hardware multiply-accumulate (MAC) and barrel shifter units for efficient signal processing tasks within the R5F10E8DALA#U0's ultra-low-power envelope.

Does the R5F10E8DALA#U0 support real-time clock functionality with calendar and alarm features?

Yes, the R5F10E8DALA#U0 integrates a full-featured real-time clock (RTC) module with calendar and alarm functions, including watch correction capability. It supports 32.768 kHz crystal input (XT1) or subsystem clock, and provides a dedicated RTC1HZ output pin (P30) for precise 1 Hz timing-fully operational in Halt mode at only 0.57 µA, making it ideal for time-stamped logging in the R5F10E8DALA#U0.

How much data flash memory does the R5F10E8DALA#U0 include, and what is its endurance rating?

The R5F10E8DALA#U0 includes 4 KB of on-chip data flash memory designed for background operation-allowing program execution while erasing or writing. It is rated for 1 million erase cycles (typical) and supports 1.8–3.6 V erase/programming voltage, enabling robust EEPROM emulation and firmware update storage directly within the R5F10E8DALA#U0 without external nonvolatile memory.

What are the power supply requirements and low-power modes supported by the R5F10E8DALA#U0?

The R5F10E8DALA#U0 operates from a single 1.6 V to 3.6 V supply and supports four key low-power modes: Stop (0.23 µA, RAM retained), Halt (0.57 µA, RTC + LVD active), Snooze (0.6–0.7 mA, peripheral-triggered wake), and Operating (66 µA/MHz). Its REGC pin requires a 0.47–1 µF capacitor to VSS for internal regulator stability-critical for consistent low-power behavior in the R5F10E8DALA#U0.

Can the R5F10E8DALA#U0 perform analog-to-digital conversion below 1.8 V supply?

Yes, the R5F10E8DALA#U0's 12-bit ADC supports operation down to 1.6 V supply voltage, with guaranteed 3.375 µs conversion time and full 28-channel capability. It includes an internal 1.45 V reference and on-chip temperature sensor, and accepts AVREFP/AVREFM inputs for external reference-making it uniquely suited for single-cell battery systems where supply voltage drops below 1.8 V during discharge, as confirmed in the R5F10E8DALA#U0 datasheet.