Renesas R5F100EHANA#U0

Overview

R5F100EHANA#U0 from Renesas is a 40-pin HWQFN-packaged RL78/G13 16-bit microcontroller with 64 KB flash, 4 KB data flash, and 4 KB RAM, operating from 1.6 V to 5.5 V. It delivers 41 DMIPS at 32 MHz, supports ultra-low-power modes (66 μA/MHz active, 0.57 μA RTC+LVD), and integrates 10-bit ADC (26 channels), RTC, UART, I²C, SPI, and 16-bit timers for embedded control in battery-powered industrial sensors and smart home nodes.

For engineers reviewing the R5F100EHANA#U0 datasheet, R5F100EHANA#U0 pinout, R5F100EHANA#U0 application, or R5F100EHANA#U0 equivalent, key selection criteria include its 40-pin HWQFN-0.5 mm pitch package, integrated data flash with 1M rewrite cycles, real-time clock with calendar/alarm, low-voltage detection across 14 levels, and support for background data flash programming during code execution.

Technical Context

The R5F100EHANA#U0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling configurable instruction timing from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). It features dual-clock domains: high-speed on-chip oscillator (±1.0% accuracy, selectable 1–32 MHz) and dedicated low-speed oscillator for watchdog and RTC.

Its peripheral set includes up to 26-channel 10-bit ADC with internal 1.45 V reference and temperature sensor, 3–10 channel I²C/Simplified I²C, 2–4 channel UART/LIN, 2–8 channel CSI (SPI-compatible), and DMA controller with 2/4 channels supporting 2-clock transfers between SFR and RAM.

Key Specifications

Pinout & Package

Package: 40-pin HWQFN (6 × 6 mm, 0.5 mm pitch), moisture-sensitive level 3, RoHS-compliant, thermal pad exposed on bottom for enhanced heat dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100EGANA#U0, the R5F100EHANA#U0 provides 4× more code flash and 2× more RAM for feature-rich firmware; versus R5F101EHANA#U0, it adds 4 KB of wear-leveled, background-programmable data flash-critical for field-upgradable systems requiring secure, high-endurance parameter storage without external components.

Availability

R5F100EHANA#U0 is available at Aetrix Electronics and suitable for industrial motor controllers, smart home sensor nodes, home appliance main boards, and asset tracking beacons requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for R5F100EHANA#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 connectivity solutions for automotive, industrial, and IoT markets.

The RL78/G13 family targets cost-sensitive, ultra-low-power general-purpose embedded applications-designed to replace legacy 8-bit MCUs while delivering 16-bit performance, integrated peripherals, and robust flash reliability for consumer and industrial equipment.

FAQ

What is the maximum operating frequency and corresponding performance of the R5F100EHANA#U0?

The R5F100EHANA#U0 operates at up to 32 MHz with its high-speed on-chip oscillator, achieving 41 DMIPS of processing performance. This enables deterministic execution of real-time control algorithms, such as PID loops or sensor fusion, within tight timing budgets. The RL78 core's 3-stage pipeline and configurable instruction timing ensure consistent throughput across varying clock sources, including the 32.768 kHz RTC oscillator for low-power wake events.

Does the R5F100EHANA#U0 include integrated data flash, and what are its endurance and programming capabilities?

Yes, the R5F100EHANA#U0 includes 4 KB of on-chip data flash rated for 1,000,000 write/erase cycles (typical) with operation supported across the full 1.8–5.5 V VDD range. It supports background operation (BGO), allowing code execution from program memory while rewriting data flash-essential for seamless firmware updates and runtime parameter logging without system interruption. The flash library uses RAM starting at address FEF00H.

What package type and pin count does the R5F100EHANA#U0 use, and is thermal management supported?

The R5F100EHANA#U0 uses a 40-pin HWQFN package (6 × 6 mm, 0.5 mm pitch) with an exposed thermal pad on the underside. This design facilitates efficient heat dissipation in compact layouts and improves EMI performance when the pad is soldered to a large PCB copper area. The package is moisture sensitivity level 3 and complies with RoHS directives, making it suitable for automated SMT assembly and industrial-grade reliability requirements.

How many analog input channels and what ADC resolution does the R5F100EHANA#U0 provide?

The R5F100EHANA#U0 integrates a 10-bit successive-approximation ADC with up to 26 analog input channels (ANI0–ANI25). It includes an internal 1.45 V reference voltage and a calibrated temperature sensor usable in HS (high-speed main) mode. Input channels can be configured for single-ended or differential measurement, and the ADC supports scan mode with automatic channel sequencing-ideal for multi-sensor monitoring in thermostats or motor drives.

What low-power modes are available on the R5F100EHANA#U0, and what is the lowest achievable current consumption?

The R5F100EHANA#U0 supports HALT, STOP, and SNOOZE low-power modes. In STOP mode with only the real-time clock (RTC) and low-voltage detector (LVD) active, it achieves 0.57 μA typical current consumption at VDD = 3.0 V and TA = 25°C. This enables multi-year battery operation in intermittent-sensing applications. Wake-up sources include external interrupts, RTC alarm, LVD trip, and serial interface activity-ensuring responsive yet energy-efficient system behavior.