Renesas R5F100FAAFP#30

Overview

R5F100FAAFP#30 from Renesas is a 44-pin LQFP, 32-bit RL78/G13 microcontroller with 96 KB flash, 8 KB data flash, and 8 KB RAM, operating at 32 MHz (41 DMIPS), supporting ultra-low-power modes (0.57 μA RTC+LVD), 10-bit ADC (24 channels), and multiple serial interfaces (UART, I²C, CSI) for embedded control in industrial and consumer systems.

For engineers reviewing the R5F100FAAFP#30 datasheet, R5F100FAAFP#30 pinout, R5F100FAAFP#30 application, or R5F100FAAFP#30 equivalent, key selection criteria include its 44-pin LQFP-0.8mm package, -40°C to +85°C industrial temperature grade (D), integrated RTC with calendar/alarm, background data flash rewrite capability, and hardware multiplier/divider for real-time signal processing.

Technical Context

The R5F100FAAFP#30 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz low-power mode). It integrates a 12-bit interval timer, real-time clock with calendar and alarm, and watchdog timer with dedicated low-speed oscillator.

Its peripheral set includes up to 24-channel 10-bit ADC with internal 1.45 V reference and temperature sensor, 2–4 channel DMA controller (2-cycle transfers between SFR and RAM), and multi-protocol serial interfaces: UART/LIN (2–4 channels), I²C/Simplified I²C (3–10 channels), and CSI (2–8 channels).

Key Specifications

Pinout & Package

Package: 44-pin LQFP (10 × 10 mm, 0.8-mm pitch), RoHS-compliant, industrial-grade (−40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100FAAFP#30, R5F101FAAFP#30 removes data flash to reduce cost and die size but sacrifices field-upgrade capability, while R5F100FCAFP#30 scales memory for feature-rich applications without changing PCB layout or thermal design.

Availability

R5F100FAAFP#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, home appliance controllers, and building HVAC systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for R5F100FAAFP#30 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 product line delivers true low-power performance (66 μA/MHz) with rich analog integration and industrial temperature support, targeting cost-sensitive embedded control applications where energy efficiency and peripheral flexibility are critical.

FAQ

What is the maximum operating frequency and performance rating of the R5F100FAAFP#30?

The R5F100FAAFP#30 operates at up to 32 MHz with a performance rating of 41 DMIPS. Its high-accuracy on-chip oscillator (±1.0% over −20°C to +85°C) enables stable timing without external crystals in most applications. The RL78 core achieves this throughput with a 3-stage pipeline and efficient CISC instruction set, making the R5F100FAAFP#30 suitable for real-time control tasks such as motor commutation and sensor fusion.

Does the R5F100FAAFP#30 support in-system programming and secure firmware updates?

Yes, the R5F100FAAFP#30 supports in-system programming via its on-chip debug interface and self-programming flash features. It includes boot swap functionality and a flash shield window to protect critical sections of code and data flash from unauthorized overwrite. The R5F100FAAFP#30 also supports background operation (BGO), allowing application code to run while rewriting data flash - essential for robust over-the-air updates and runtime parameter storage.

What are the power-saving modes available on the R5F100FAAFP#30, and what is the lowest current draw?

The R5F100FAAFP#30 offers HALT, STOP, and SNOOZE low-power modes. In STOP mode with only the real-time clock (RTC) and low-voltage detector (LVD) active, it draws just 0.57 μA - enabling multi-year battery life in metering and sensor applications. The device maintains full register retention and RTC/calendar functionality in this state, waking via alarm or external interrupt. This ultra-low quiescent current is validated across the industrial temperature range (−40°C to +85°C).

How many analog input channels does the R5F100FAAFP#30 support, and what ADC resolution is provided?

The R5F100FAAFP#30 integrates a 10-bit successive-approximation ADC with up to 24 analog input channels. It includes an internal 1.45 V reference voltage and an integrated temperature sensor - both accessible via dedicated ADC inputs. The ADC operates across the full 1.6–5.5 V supply range and supports scan mode, group conversion, and hardware-triggered sampling, making it ideal for multi-sensor monitoring in industrial and medical devices using the R5F100FAAFP#30.

Is the R5F100FAAFP#30 pin-compatible with other RL78/G13 variants in the same package?

Yes, the R5F100FAAFP#30 is pin-compatible with all 44-pin LQFP RL78/G13 variants sharing the PLQP0044GC-A package (e.g., R5F100FCAFP#30, R5F100FDAFP#30), including identical pin functions, electrical characteristics, and thermal profiles. This allows direct substitution within the same footprint for memory or feature scaling - for example, upgrading to 128 KB flash without PCB redesign. However, software configuration must match the specific memory map and peripheral enablement of each variant.