Renesas R5F100EFANA#U0

Overview

R5F100EFANA#U0 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 1.6–5.5 V at up to 32 MHz (41 DMIPS), optimized for ultra-low-power embedded control in battery-powered industrial sensors and smart home peripherals.

For engineers reviewing the R5F100EFANA#U0 datasheet, R5F100EFANA#U0 pinout, R5F100EFANA#U0 application, or R5F100EFANA#U0 equivalent, key selection criteria include its 0.57 μA RTC+LVD standby current, integrated 10-bit ADC (26-channel), dual UART/LIN support, and hardware AES acceleration for secure firmware updates in resource-constrained edge nodes.

Technical Context

The R5F100EFANA#U0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz ultra-low-speed mode). It integrates a 12-bit interval timer, real-time clock with calendar/alarm, and watchdog timer driven by a dedicated low-speed on-chip oscillator.

Its peripheral set includes up to 26 analog input channels for the 10-bit A/D converter, 8–16 channels of 16-bit timers, 2–4 UART/LIN interfaces, 3–10 I²C channels, and 2–8 CSI (SPI-compatible) interfaces - all configurable via register-based control without external glue logic.

Key Specifications

Pinout & Package

Package: 40-pin HWQFN (6 × 6 mm, 0.5 mm pitch), moisture sensitivity level MSL3, lead-free and RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100EFANA#U0, R5F100EGANA#U0 provides scalable memory headroom for feature-rich firmware, while R5F101EFANA#U0 reduces BOM cost where data flash functionality is unnecessary - both retain identical timing, I/O, and power characteristics for drop-in layout reuse.

Availability

R5F100EFANA#U0 is available at Aetrix Electronics and suitable for industrial motor control panels, smart thermostat sensor nodes, wireless smart plugs, and medical infusion pump interfaces requiring stable component supply across multi-year production cycles.

Supply support for R5F100EFANA#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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/G13 product line delivers true low-power performance (66 μA/MHz, 0.57 μA STOP) with rich analog/mixed-signal integration for cost-sensitive, battery-operated embedded control applications.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F100EFANA#U0?

The R5F100EFANA#U0 operates at up to 32 MHz with a measured performance of 41 DMIPS. This is achieved using the high-speed on-chip oscillator, which maintains ±1.0% accuracy across 1.8–5.5 V and −20 to +85°C. The RL78 CPU core's 3-stage pipeline and efficient CISC instruction set enable this throughput while maintaining ultra-low active power consumption of 66 μA/MHz.

Does the R5F100EFANA#U0 support hardware encryption, and if so, what algorithms are implemented?

Yes, the R5F100EFANA#U0 includes a hardware AES accelerator supporting AES-128 encryption and decryption. This dedicated circuit offloads cryptographic operations from the CPU, reducing execution time and power consumption during secure firmware updates or encrypted sensor data transmission. No additional software libraries or external co-processors are required to implement AES-128 in applications using the R5F100EFANA#U0.

How many analog input channels does the R5F100EFANA#U0 support, and what is the ADC resolution?

The R5F100EFANA#U0 integrates a 10-bit successive-approximation A/D converter with up to 26 analog input channels. It supports internal reference voltage (1.45 V) and an on-chip temperature sensor - both usable only in high-speed main mode. Input channels are mapped to P20–P27 and P140–P147 pins, enabling simultaneous sampling of multiple sensors without external multiplexers in the R5F100EFANA#U0 design.

What are the low-power modes supported by the R5F100EFANA#U0, and what is the lowest achievable current draw?

The R5F100EFANA#U0 supports HALT, STOP, and SNOOZE modes. In STOP mode with only the real-time clock (RTC) and low-voltage detector (LVD) active, it achieves 0.57 μA typical current draw. This enables multi-year operation on coin-cell batteries in applications like wireless sensors. Wake-up sources include external interrupts, RTC alarms, and LVD events - all configurable without exiting STOP mode in the R5F100EFANA#U0.

Is the R5F100EFANA#U0 pin-compatible with other RL78/G13 variants in the same package footprint?

Yes, the R5F100EFANA#U0 is pin-compatible with all 40-pin HWQFN RL78/G13 variants sharing the PWQN0040KC-A package (e.g., R5F100EGANA#U0, R5F100EHANA#U0). Pin functions, power domains, and peripheral mappings are consistent across this package group, allowing memory-size or feature-tier upgrades without PCB redesign - provided the target variant uses the same #U0 suffix and NA package code in the R5F100EFANA#U0 family.