Renesas R5F100MFAFB#30

Overview

R5F100MFAFB#30 from Renesas is a 16-bit RL78/G13 microcontroller with 96 KB flash memory, 8 KB data flash, and 8 KB RAM, operating at up to 32 MHz (41 DMIPS), featuring ultra-low power consumption (66 μA/MHz active, 0.57 μA RTC+LVD mode) for battery-powered industrial control and sensor interface applications.

For engineers reviewing the R5F100MFAFB#30 datasheet, R5F100MFAFB#30 pinout, R5F100MFAFB#30 application, or R5F100MFAFB#30 equivalent, key selection considerations include its 80-pin LFQFP-0.5mm package, integrated 10-bit ADC (26 channels), real-time clock with calendar, LIN-capable UARTs, and hardware DMA support for deterministic peripheral handling in resource-constrained embedded systems.

Technical Context

The R5F100MFAFB#30 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates on-chip power management including HALT, STOP, and SNOOZE low-power modes, plus a ±1.0% accurate 32 MHz high-speed on-chip oscillator.

It features dual serial interfaces per channel (CSI/SPI, UART/LIN, I²C), 16-bit timer array (12 channels), 12-bit interval timer, watchdog timer, and A/D converter with internal 1.45 V reference and temperature sensor - all configurable via dedicated SFRs and supported by background data flash rewriting (BGO) capability.

Key Specifications

Pinout & Package

Package: 80-pin LFQFP (12 × 12 mm, 0.5 mm pitch), 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 R5F100MGAFB#30, the R5F100MFAFB#30 trades 32 KB flash capacity for lower cost and smaller footprint in fixed-function designs; versus R5F101MFAFB#30, it adds 8 KB data flash for runtime configuration storage - critical for calibration data retention across power cycles.

Availability

R5F100MFAFB#30 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, energy metering modules, and motor control subsystems requiring stable component supply, long-term lifecycle assurance, and automotive-grade temperature resilience.

Supply support for R5F100MFAFB#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 industrial, automotive, and enterprise markets.

The RL78/G13 family delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and thermally constrained applications - balancing performance, integration, and energy efficiency without external timing or memory components.

FAQ

What is the maximum operating frequency and corresponding performance of the R5F100MFAFB#30?

The R5F100MFAFB#30 operates at up to 32 MHz using its high-speed on-chip oscillator, delivering 41 DMIPS of processing performance. Its minimum instruction execution time is 0.03125 μs in this mode, and it supports dynamic clock scaling down to 32.768 kHz for ultra-low-power RTC operation - enabling flexible trade-offs between throughput and energy use in the R5F100MFAFB#30 design.

Does the R5F100MFAFB#30 support in-system programming and secure firmware updates?

Yes, the R5F100MFAFB#30 supports full in-system programming via on-chip debug interface and includes boot swap functionality plus flash shield window protection. These features allow safe field firmware updates while preventing unauthorized access to protected code regions - essential for maintaining security and reliability in deployed R5F100MFAFB#30-based devices.

How many analog input channels does the R5F100MFAFB#30 ADC support, and what reference options are available?

The R5F100MFAFB#30 integrates a 10-bit successive-approximation ADC with up to 26 analog input channels. It supports external VDD or AVREFP/AVREFM references, and includes an internal 1.45 V reference usable across the full 1.6–5.5 V supply range - enabling accurate sensor measurements without external reference ICs in the R5F100MFAFB#30 implementation.

What low-power modes are available on the R5F100MFAFB#30, and what is the lowest achievable current draw?

The R5F100MFAFB#30 offers HALT, STOP, and SNOOZE low-power modes. In STOP mode with only RTC and LVD active, it draws just 0.57 μA - verified at VDD = 1.8–5.5 V and TA = –40°C to +105°C. This makes the R5F100MFAFB#30 ideal for multi-year battery operation in remote sensing and metering applications.

Is the R5F100MFAFB#30 pin-compatible with other RL78/G13 variants in the same package?

Yes, all RL78/G13 devices in the 80-pin LFQFP-0.5mm package - including R5F100MGAFB#30, R5F100MHAFB#30, and R5F101MFAFB#30 - share identical pinouts and electrical characteristics. This enables direct substitution within the same footprint for memory or feature scaling, provided software accounts for differences in flash size, data flash presence, or peripheral enablement in the R5F100MFAFB#30 context.