Renesas R5F100BDDNA#U0

Overview

R5F100BDDNA#U0 from Renesas is a 32-pin HWQFN-packaged RL78/G13 16-bit microcontroller with 48 KB flash, 4 KB data flash, and 2 KB RAM, operating from 1.6–5.5 V at up to 32 MHz (41 DMIPS), featuring ultra-low-power modes (0.57 μA RTC+LVD), 10-bit ADC (26 channels), and integrated real-time clock - deployed in industrial sensor nodes and battery-powered control modules.

For engineers reviewing the R5F100BDDNA#U0 datasheet, R5F100BDDNA#U0 pinout, R5F100BDDNA#U0 application, or R5F100BDDNA#U0 equivalent, key selection criteria include its 32-pin HWQFN-0.5 mm pitch package, industrial-grade −40°C to +85°C operation (D-suffix), on-chip debug support, and BGO-capable data flash for background reprogramming in field-upgradable embedded systems.

Technical Context

The R5F100BDDNA#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 subsystem clock). It integrates dual-clock domains: high-accuracy ±1.0% on-chip oscillator (selectable 1–32 MHz) and dedicated low-speed oscillator for watchdog and RTC.

Its peripheral set includes 8× 16-bit timers, 1× 12-bit interval timer, 1× calendar RTC with alarm/correction, 2–4 channel DMA, and multi-protocol serial interfaces (CSI, UART/LIN, I²C) - all managed via register-level SFR access with consistent 2-cycle transfer latency between SFR and RAM.

Key Specifications

Pinout & Package

Package: 32-pin HWQFN (5 × 5 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 R5F100BDDNA#U0, R5F100BEDNA#U0 offers scalable firmware capacity for evolving feature sets, while R5F101BDDNA#U0 removes data flash to lower unit cost and reduce qualification scope - enabling targeted trade-offs between field upgradeability, memory margin, and bill-of-materials efficiency.

Availability

R5F100BDDNA#U0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy metering, and home appliance control requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F100BDDNA#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 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications - balancing performance, integration, and energy efficiency without compromising reliability.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F100BDDNA#U0?

The R5F100BDDNA#U0 operates at up to 32 MHz with a measured performance of 41 DMIPS. This rating reflects integer instruction throughput under standard benchmark conditions using the RL78 CPU core's 3-stage pipeline and optimized compiler toolchain. The high-accuracy on-chip oscillator ensures stable timing without external crystals in many applications.

Does the R5F100BDDNA#U0 support background data flash rewriting while executing application code?

Yes, the R5F100BDDNA#U0 supports Background Operation (BGO) for data flash. This allows the CPU to execute instructions from program memory while simultaneously rewriting data flash sectors - essential for over-the-air updates and runtime parameter storage without halting system operation. The data flash endurance is rated at 1,000,000 write cycles.

What package type and pin pitch does the R5F100BDDNA#U0 use?

The R5F100BDDNA#U0 uses a 32-pin HWQFN package (5 × 5 mm body) with 0.5 mm pin pitch. It is marked with suffix #U0 indicating tray packaging and conforms to JEDEC MO-220 standards. The package supports reflow soldering per IPC/JEDEC J-STD-020 and is rated MSL3.

Is the R5F100BDDNA#U0 qualified for industrial temperature range operation?

Yes, the R5F100BDDNA#U0 carries the 'D' grade suffix, certifying operation across −40°C to +85°C ambient temperature. This qualification covers all specified electrical parameters, including flash read/write, ADC accuracy, oscillator stability, and I/O drive strength - meeting industrial equipment reliability requirements.

How many analog input channels does the R5F100BDDNA#U0 support, and what is the ADC resolution?

The R5F100BDDNA#U0 integrates a 10-bit successive-approximation ADC supporting up to 26 analog input channels. Inputs include dedicated ANI0–ANI7 pins plus multiplexed functions on other port pins. The ADC features an internal 1.45 V reference and optional temperature sensor - calibrated for accuracy across the full industrial temperature range.