Renesas R5F100MLAFB#V0

Overview

R5F100MLAFB#V0 from Renesas is an RL78/G13 80-pin, 512 KB flash, 32 KB RAM ultra-low-power 16-bit MCU with integrated RTC, 10-bit ADC (26 channels), and multiple serial interfaces (UART, I²C, CSI) for industrial control and sensor node applications operating from 1.6 V to 5.5 V.

For engineers reviewing the R5F100MLAFB#V0 datasheet, R5F100MLAFB#V0 pinout, R5F100MLAFB#V0 application, or R5F100MLAFB#V0 equivalent, key selection criteria include its 512 KB code flash with self-programming, 0.57 μA STOP mode current, 41 DMIPS @ 32 MHz performance, and LFQFP-80 (0.5 mm pitch) package compatibility with industrial temperature range (–40°C to +105°C).

Technical Context

The R5F100MLAFB#V0 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 with dedicated low-speed oscillator.

Its peripheral set includes up to 16× 16-bit timers, 3× I²C/Simplified I²C channels, 4× UART/LIN channels, 2–8× CSI channels, DMA controller (4 channels), and 16× 10-bit ADC input channels - all configurable under single-supply 1.6–5.5 V operation with on-chip LVD and POR.

Key Specifications

Pinout & Package

Package: LFQFP-80, 12 × 12 mm, 0.5 mm pitch, exposed pad (PLQP0080KE-A), RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F101MLAFB#V0, the R5F100MLAFB#V0 adds 8 KB data flash for configuration logging-critical for field-upgradable appliances. Versus RA2A1GBMH20#AC0, it delivers lower STOP-mode current (0.57 μA vs. 1.6 μA) and integrated RTC calendar, reducing BOM cost in time-sensitive industrial controls.

Availability

R5F100MLAFB#V0 is available at Aetrix Electronics and suitable for smart metering, industrial HMI, and wireless sensor node applications requiring stable component supply, long-lifecycle assurance, and industrial-grade temperature compliance.

Supply support for R5F100MLAFB#V0 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 trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.

The RL78/G13 product line targets cost-sensitive, ultra-low-power general-purpose applications-including metering, home appliances, and industrial control-where energy efficiency, code density, and peripheral integration outweigh raw processing throughput.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F100MLAFB#V0?

The R5F100MLAFB#V0 operates at up to 32 MHz using its high-speed on-chip oscillator, delivering 41 DMIPS of processing performance. This is achieved with the RL78 CPU core's 3-stage pipeline and optimized instruction set-validated across the full industrial temperature range (–40°C to +105°C) and 1.6–5.5 V supply.

Does the R5F100MLAFB#V0 include an integrated real-time clock (RTC) with calendar functionality?

Yes, the R5F100MLAFB#V0 includes a fully featured RTC with 99-year calendar, alarm interrupt capability, and clock correction function. It operates independently in STOP mode using the 32.768 kHz crystal (RTC_X1/RTC_X2 pins) and maintains timekeeping with only 0.57 μA total current draw-no external RTC IC required.

How much data flash memory does the R5F100MLAFB#V0 provide, and what is its endurance specification?

The R5F100MLAFB#V0 provides 8 KB of on-chip data flash memory, rated for 1,000,000 write/erase cycles (typical) across the full operating voltage range (1.8–5.5 V). Background operation (BGO) allows concurrent code execution and data flash rewriting-essential for robust firmware logging and parameter storage in the R5F100MLAFB#V0.

What package type and pin count does the R5F100MLAFB#V0 use, and is it RoHS-compliant?

The R5F100MLAFB#V0 uses an 80-pin LFQFP package (12 × 12 mm, 0.5 mm pitch) with exposed thermal pad (Renesas code PLQP0080KE-A). It is RoHS-compliant, halogen-free, and qualified for industrial temperature operation (–40°C to +105°C), making it suitable for high-reliability embedded deployments.

Can the R5F100MLAFB#V0 operate from a single 1.8 V supply, and how does it handle I/O interfacing with lower-voltage peripherals?

Yes, the R5F100MLAFB#V0 supports operation down to 1.6 V, so 1.8 V is fully within spec. Its I/O ports support different-potential interfacing: N-ch open-drain pins tolerate 1.8/2.5/3.0 V logic levels directly, eliminating external level shifters when connecting to low-voltage sensors, displays, or communication ICs-verified in the R5F100MLAFB#V0 datasheet Section 1.1.