Renesas R5F100LLAFA#30

Overview

R5F100LLAFA#30 from Renesas is a 64-pin LQFP-0.65mm, 512 KB flash, 8 KB data flash, 32 KB RAM RL78/G13 16-bit microcontroller operating from 1.6 V to 5.5 V, delivering 41 DMIPS at 32 MHz with ultra-low-power HALT/STOP/SNOOZE modes - deployed in industrial motor control and smart sensor nodes requiring RTC, 10-bit ADC (26 channels), and LIN-capable UART.

For engineers reviewing the R5F100LLAFA#30 datasheet, R5F100LLAFA#30 pinout, R5F100LLAFA#30 application, or R5F100LLAFA#30 equivalent, key selection criteria include its 64-pin LQFP package, integrated real-time clock with calendar/alarm, background data flash rewriting capability, and support for 32.768 kHz subsystem clock with ±1.0% oscillator accuracy across –40°C to +85°C.

Technical Context

The R5F100LLAFA#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 ultra-low-speed mode). It integrates dual-clock domains: high-speed on-chip oscillator (selectable 1–32 MHz) and dedicated low-speed oscillator for watchdog and RTC.

Its peripheral set includes up to 16× 16-bit timers, 1× 12-bit interval timer, 1× real-time clock with calendar and clock correction, 1× watchdog timer, 26-channel 10-bit ADC with internal 1.45 V reference and temperature sensor, and serial interfaces including 3–10-channel I²C, 2–4-channel UART/LIN, and 2–8-channel CSI (SPI-compatible).

Key Specifications

Pinout & Package

Package: 64-pin LQFP (12 × 12 mm, 0.65-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 R5F100LLAFB#30 and R5F101LLAFA#30, the R5F100LLAFA#30 uniquely balances large code/data memory, ultra-low-power operation, and full peripheral integration in a standard 64-pin LQFP - making it optimal for industrial control nodes needing long-term configurability and battery longevity.

Availability

R5F100LLAFA#30 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, and automotive body electronics requiring stable component supply, extended temperature support, and long-lifecycle availability.

Supply support for R5F100LLAFA#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 for general-purpose embedded applications, targeting cost-sensitive industrial controls, home appliances, and sensor edge devices where energy efficiency and peripheral integration are critical.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F100LLAFA#30?

The R5F100LLAFA#30 operates at up to 32 MHz using its high-speed on-chip oscillator and delivers 41 DMIPS. This performance level is achieved with the RL78 CPU core's 3-stage pipeline and is validated across the full 1.6–5.5 V supply range and –40°C to +85°C ambient temperature. The R5F100LLAFA#30 maintains consistent timing behavior regardless of voltage or temperature within these bounds.

Does the R5F100LLAFA#30 support hardware-based LIN bus communication?

Yes, the R5F100LLAFA#30 supports LIN bus communication through its UART peripheral with built-in LIN-mode features, including automatic sync-break detection, checksum calculation, and identifier filtering. This eliminates the need for external LIN transceivers to handle protocol-level timing - the R5F100LLAFA#30 manages frame formatting and error checking in hardware.

What is the data flash endurance and voltage range for rewriting the R5F100LLAFA#30?

The R5F100LLAFA#30 provides 8 KB of data flash rated for 1,000,000 write/erase cycles (typical) with operation supported across the full VDD range of 1.8 V to 5.5 V. Rewrites can occur concurrently with program execution via background operation (BGO), and the flash library reserves RAM starting at address F7F00H for self-programming routines.

How does the R5F100LLAFA#30 achieve ultra-low-power operation in STOP mode?

The R5F100LLAFA#30 achieves 0.57 μA STOP mode current by disabling the main CPU, flash, and most peripherals while retaining power to the real-time clock (RTC), low-voltage detector (LVD), and associated registers. The RTC continues calendar and alarm functions using the dedicated 32.768 kHz subsystem clock, enabling wake-up events without external components - a key feature of the R5F100LLAFA#30.

Is the R5F100LLAFA#30 pin-compatible with other RL78/G13 variants in the same package?

Yes, all RL78/G13 devices in the 64-pin LQFP-0.65 mm package - including R5F100LLAFA#30, R5F100LKAFA#30, and R5F100LJAFA#30 - share identical pinouts and electrical characteristics. Firmware and hardware designs are interchangeable across this package group, provided memory and peripheral requirements align with the selected variant's specifications.