Renesas R5F100EHANA#W0

Overview

R5F100EHANA#W0 from Renesas is a 40-pin HWQFN-packaged 16-bit RL78/G13 microcontroller with 64 KB flash, 4 KB data flash, and 4 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), RTC calendar, and UART/I²C/CSI interfaces - deployed in battery-powered industrial sensors and smart metering endpoints.

For engineers reviewing the R5F100EHANA#W0 datasheet, R5F100EHANA#W0 pinout, R5F100EHANA#W0 application, or R5F100EHANA#W0 equivalent, key selection criteria include its 40-pin HWQFN-0.5 mm pitch package, 64 KB code flash with self-programming and flash shield window, 10-bit ADC with internal reference and temperature sensor, and support for LIN-bus via UART - all validated for -40°C to +85°C industrial operation.

Technical Context

The R5F100EHANA#W0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling minimum instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates a DMA controller (2 channels), multiplier/divider/MAC unit, and background operation (BGO) for concurrent data flash rewriting while executing program code.

Power management includes on-chip POR and LVD with 14 selectable voltage detection levels, plus dedicated low-speed oscillator for watchdog timer operation. Clock sources comprise a high-accuracy ±1.0% on-chip oscillator (1–32 MHz selectable) and external crystal support, enabling precise timing control across wide voltage and temperature ranges.

Key Specifications

Pinout & Package

Package: 40-pin HWQFN (6 × 6 mm, 0.5-mm pitch), exposed thermal pad, RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100EGANA#W0, R5F100EHANA#W0 provides 16 KB more flash and 1 KB more RAM for complex control algorithms and larger data buffers; compared with R5F100FHANA#W0, it trades extended temperature rating for lower cost and qualification scope in standard industrial deployments.

Availability

R5F100EHANA#W0 is available at Aetrix Electronics and suitable for smart utility metering, industrial sensor nodes, home appliance control, portable medical devices, and LIN-based automotive body electronics requiring stable component supply and long-term production continuity.

Supply support for R5F100EHANA#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 industrial, automotive, and enterprise applications.

The RL78/G13 product line delivers true low-power 16-bit MCU performance for cost-sensitive, battery-operated, and energy-conscious embedded systems - emphasizing ultra-low active/idle current, integrated analog, and functional safety readiness.

FAQ

What is the maximum operating frequency and corresponding performance of the R5F100EHANA#W0?

The R5F100EHANA#W0 operates at up to 32 MHz with a peak performance of 41 DMIPS. Its RL78 CPU core achieves this through a 3-stage pipeline and high-speed on-chip oscillator with ±1.0% accuracy across 1.8–5.5 V and -40°C to +85°C. This enables deterministic real-time control in applications such as motor commutation and sensor fusion where cycle count predictability matters. The R5F100EHANA#W0 maintains full peripheral functionality-including ADC sampling and UART transmission-at maximum clock rate.

Does the R5F100EHANA#W0 support in-system programming and secure firmware updates?

Yes, the R5F100EHANA#W0 supports full in-system programming via its on-chip debug interface and includes flash shield window functionality to protect designated memory regions from read/write access. It also implements boot swap capability, allowing dual-bank firmware images to be updated safely - if an update fails mid-write, the device boots from the known-good image. These features are integral to the R5F100EHANA#W0's flash library and require no external hardware programmer for field deployment.

What analog capabilities does the R5F100EHANA#W0 provide for sensor interfacing?

The R5F100EHANA#W0 integrates a 10-bit successive-approximation ADC with up to 26 input channels, internal 1.45 V reference voltage, and a factory-calibrated on-die temperature sensor. It supports simultaneous sampling on multiple channels using hardware triggers from timers or external events. The ADC operates across the full 1.6–5.5 V supply range, enabling direct interfacing with resistive sensors, thermistors, and bridge transducers without external signal conditioning - a key advantage of the R5F100EHANA#W0 in compact, low-power designs.

How does the R5F100EHANA#W0 achieve ultra-low power consumption in battery-operated applications?

The R5F100EHANA#W0 achieves industry-leading low power via three optimized modes: HALT (66 μA/MHz), STOP (0.57 μA with RTC and LVD active), and SNOOZE (selective peripheral wake-up). Its low-voltage operation (1.6 V min) extends usable battery range, while the dedicated low-speed on-chip oscillator powers the watchdog timer independently - preserving timing integrity during deep sleep. These features make the R5F100EHANA#W0 ideal for multi-year deployments in remote sensors and meters where energy harvesting or coin-cell operation is required.

Is the R5F100EHANA#W0 pin-compatible with other RL78/G13 variants in the same package?

Yes, the R5F100EHANA#W0 is pin-compatible with all 40-pin HWQFN variants in the RL78/G13 family, including R5F100EGANA#W0, R5F100FGANA#W0, and R5F100GHANA#W0. All share identical pin assignments, electrical characteristics, and mechanical footprint (PWQN0040KC-A), enabling drop-in replacement for memory or temperature grade changes without PCB redesign. However, firmware must be validated for differences in flash size, RAM allocation, and peripheral enablement per variant - a constraint inherent to the R5F100EHANA#W0's specific configuration.