Renesas R5F100BDGNA#U0

Overview

R5F100BDGNA#U0 from Renesas is a 32-pin HWQFN-packaged 16-bit RL78/G13 microcontroller with 64 KB flash, 4 KB data flash, 4 KB RAM, 16 MHz max CPU speed, and industrial-grade −40°C to +105°C operation. It integrates 12-bit ADC (16 channels), RTC, UART/SPI/I²C interfaces, DMA, and ultra-low-power modes (0.57 μA in STOP with RTC+LVD active) for embedded control in space-constrained industrial sensors and motor drives.

For engineers reviewing the R5F100BDGNA#U0 datasheet, R5F100BDGNA#U0 pinout, R5F100BDGNA#U0 application, or R5F100BDGNA#U0 equivalent, key selection criteria include its 32-pin HWQFN-0.5mm-pitch package, G-grade temperature rating, integrated data flash with 1M-cycle endurance, and support for background data flash rewriting during program execution.

Technical Context

The R5F100BDGNA#U0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting variable instruction timing from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). It features on-chip debug, self-programming with boot swap, and flash shield window security.

Its peripheral set includes up to 16-channel 12-bit ADC with internal 1.45 V reference and temperature sensor, 8× 16-bit timers (including interval timer and RTC), 2–4 channel DMA, and multi-protocol serial interfaces: CSI (SPI-like), UART/LIN, and I²C - all configurable across dedicated pins with programmable drive strength and pull-up options.

Key Specifications

Pinout & Package

Package: HWQFN-32 (5 × 5 mm, 0.5 mm pitch), exposed thermal pad, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100BDGNA#U0, R5F101BDGNA#U0 removes data flash to reduce cost but sacrifices in-field reprogramming capability, while R5F100BGDFA#V0 expands I/O count and peripheral flexibility at the expense of board area and layout compatibility.

Availability

R5F100BDGNA#U0 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, and automotive body electronics requiring stable component supply, long-term lifecycle assurance, and G-grade temperature qualification.

Supply support for R5F100BDGNA#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/G13 family is designed for cost-sensitive, ultra-low-power general-purpose embedded applications - balancing performance, integration, and energy efficiency in compact packages like HWQFN-32.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F100BDGNA#U0?

The R5F100BDGNA#U0 operates at up to 16 MHz, delivering 41 DMIPS performance. This is achieved using the RL78 CPU core's 3-stage pipeline and high-speed on-chip oscillator. The device supports dynamic clock switching between 16 MHz (full performance) and 32.768 kHz (ultra-low-power RTC mode), enabling optimized trade-offs between throughput and energy consumption in the R5F100BDGNA#U0.

Does the R5F100BDGNA#U0 include data flash memory, and what is its endurance specification?

Yes, the R5F100BDGNA#U0 includes 4 KB of on-chip data flash memory rated for 1,000,000 write/erase cycles (typical). It supports background operation (BGO), allowing program execution from code flash while simultaneously rewriting data flash - a critical capability for logging, calibration storage, or firmware updates in the R5F100BDGNA#U0.

What package type and thermal characteristics does the R5F100BDGNA#U0 use?

The R5F100BDGNA#U0 uses a 32-pin HWQFN package (5 × 5 mm, 0.5 mm pitch) with an exposed thermal pad. This package supports automated reflow assembly and provides improved thermal dissipation compared to TSSOP or SSOP alternatives. Its G-grade qualification (−40°C to +105°C) and low thermal resistance make it suitable for thermally demanding environments in the R5F100BDGNA#U0.

Can the R5F100BDGNA#U0 operate from a single 3.3 V supply, and what is its minimum supply voltage?

Yes, the R5F100BDGNA#U0 operates across a wide supply range of 1.6 V to 5.5 V, fully supporting 3.3 V nominal systems. At 3.3 V, it maintains full functionality including 16 MHz operation, ADC conversion, and peripheral interfaces. Its 1.6 V minimum enables compatibility with partially discharged batteries or energy-harvesting sources in the R5F100BDGNA#U0.

How many analog input channels does the R5F100BDGNA#U0 support, and does it include an internal voltage reference?

The R5F100BDGNA#U0 supports 16 analog input channels for its 12-bit ADC and includes an internal 1.45 V reference voltage (AVREFP/AVREFM). This reference is factory-trimmed and usable across the full temperature range, eliminating the need for external precision references in most sensor interface designs involving the R5F100BDGNA#U0.