Renesas R5F100EEANA#W0

Overview

R5F100EEANA#W0 from Renesas is a 40-pin HWQFN-packaged 16-bit RL78/G13 microcontroller with 48 KB flash, 4 KB data flash, and 3 KB RAM, operating from 1.6 V to 5.5 V at up to 32 MHz (41 DMIPS), featuring ultra-low-power HALT/STOP/SNOOZE modes (0.57 μA RTC+LVD), integrated 10-bit ADC (26 channels), real-time clock, and UART/I²C/CSI interfaces - deployed in battery-powered industrial sensors and smart metering endpoints.

For engineers reviewing the R5F100EEANA#W0 datasheet, R5F100EEANA#W0 pinout, R5F100EEANA#W0 application, or R5F100EEANA#W0 equivalent, key selection criteria include its 40-pin HWQFN-40 (6 × 6 mm, 0.5 mm pitch) package, 48 KB code flash with self-programming and boot swap, 10-bit ADC with internal temperature sensor, and support for LIN-bus via UART - critical for low-power embedded control where footprint, power budget, and peripheral integration are constrained.

Technical Context

The R5F100EEANA#W0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling configurable instruction execution time from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates on-chip power-on-reset (POR), voltage detector (LVD) with 14 selectable levels, and DMA controller with 2 channels supporting 2-clock transfers between SFR and RAM.

Its timing subsystem includes one 12-bit interval timer, one calendar-capable real-time clock (RTC) with alarm and correction, and one watchdog timer running on a dedicated low-speed oscillator. The analog subsystem delivers 10-bit A/D conversion across up to 26 input channels, with internal 1.45 V reference and factory-calibrated temperature sensor usable only in HS mode.

Key Specifications

Pinout & Package

Package: HWQFN-40 (6 × 6 mm, 0.5 mm pitch), moisture-sensitive level 3, lead-free, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100EDANA#W0 and R5F100FEANA#W0, the R5F100EEANA#W0 strikes a balanced trade-off: sufficient memory (48 KB/4 KB/3 KB) for feature-rich edge nodes without over-provisioning, while retaining full low-power mode support and identical peripheral set - making it optimal for cost-sensitive, battery-operated industrial and consumer IoT endpoints.

Availability

R5F100EEANA#W0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor networks, and home appliance control requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for R5F100EEANA#W0 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/G13 family is designed for ultra-low-power general-purpose embedded control - targeting battery-powered sensors, metering, and appliance applications where energy efficiency, peripheral integration, and code density are critical.

FAQ

What is the maximum operating frequency and associated performance of the R5F100EEANA#W0?

The R5F100EEANA#W0 operates at up to 32 MHz with a peak performance of 41 DMIPS. Its high-accuracy on-chip oscillator maintains ±1.0% tolerance across 1.8–5.5 V supply and –20 to +85°C ambient, eliminating need for external crystal in many timing-critical applications. This frequency enables real-time motor control loops and fast ADC sampling without external clock sources.

Does the R5F100EEANA#W0 support LIN bus communication, and how is it implemented?

Yes, the R5F100EEANA#W0 supports LIN bus communication through its UART peripheral, which includes hardware-assisted LIN 2.2 protocol features such as automatic sync field detection, checksum generation, and break detection. The UART channel used for LIN must be configured in LIN mode - no external transceiver is required for basic node functionality, though ISO 17987-compliant transceivers are needed for full network compliance.

What are the low-power operating modes supported by the R5F100EEANA#W0, and what is the lowest achievable current draw?

The R5F100EEANA#W0 supports HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it draws just 0.57 μA - verified at VDD = 3.0 V and TA = 25°C. This mode retains RAM content and allows wake-up via external interrupt, RTC alarm, or LVD event, making it ideal for infrequent-sensing applications like environmental monitors with multi-year battery life.

Can the R5F100EEANA#W0 perform simultaneous program execution and data flash rewriting?

Yes, the R5F100EEANA#W0 supports Background Operation (BGO) for data flash memory. While executing code from main flash, it can rewrite data flash sectors - essential for logging sensor data or storing calibration parameters without halting application logic. The flash library reserves specific RAM regions (e.g., FEF00H for R5F100xE variants) for this operation, as documented in R20UT2944.

What is the ADC resolution, input channel count, and special analog features of the R5F100EEANA#W0?

The R5F100EEANA#W0 integrates a 10-bit successive-approximation ADC with up to 26 analog input channels. It includes an internal 1.45 V reference voltage and a factory-calibrated temperature sensor - both accessible only in HS (high-speed main) mode. The ADC supports scan mode, group conversion, and hardware-triggered sampling synchronized to timers, enabling precise multi-sensor acquisition in compact designs.