Renesas R5F104LCAFP#50

Overview

R5F104LCAFP#50 from Renesas is a 64-pin LQFP-0.65mm-pitch, 512 KB flash, 20 KB RAM RL78/G14 16-bit microcontroller operating from 1.6–5.5 V, delivering 44 DMIPS at 32 MHz with ultra-low-power HALT/STOP/SNOOZE modes (66 μA/MHz active, 0.60 μA RTC+LVD), targeting industrial motor control and sensor-based HMI systems.

For engineers reviewing the R5F104LCAFP#50 datasheet, R5F104LCAFP#50 pinout, R5F104LCAFP#50 application, or R5F104LCAFP#50 equivalent, key selection criteria include its 64-pin LQFP package, 512 KB code flash with 1 KB block erase, integrated 10-bit 20-channel ADC, dual UART/LIN support, and industrial-grade −40°C to +85°C operation.

Technical Context

The R5F104LCAFP#50 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 µs (32 MHz high-speed on-chip oscillator) to 30.5 µs (32.768 kHz subsystem clock). It integrates an Event Link Controller (ELC) enabling hardware-triggered peripheral chaining without CPU intervention.

Its memory subsystem includes 512 KB on-chip flash (1 KB erase blocks, security lock), 20 KB RAM, and 8 KB data flash with background operation (BGO) and 1M-cycle rewrite endurance. Power management features include on-chip POR, 14-level LVD, and multiple low-power modes with fast wake-up.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (12 × 12 mm, 0.65 mm pitch), RoHS-compliant, lead-free, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit microcontroller applications.

Compared with R5F104LGAFP#50 and R5F104LJAFP#50, the R5F104LCAFP#50 provides maximum code storage for complex protocol stacks or OTA update partitions, retains full peripheral complement including all 3 UART/LIN channels and 20 ADC inputs, and maintains identical industrial temperature range and package compatibility.

Availability

R5F104LCAFP#50 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, home appliance HMIs, and PLC I/O modules requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.

Supply support for R5F104LCAFP#50 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/G14 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive industrial and consumer equipment requiring high integration, robust peripheral sets, and extended battery life - with R5F104LCAFP#50 representing its highest-density memory configuration in the 64-pin LQFP family.

FAQ

What is the maximum operating frequency and corresponding performance of the R5F104LCAFP#50?

The R5F104LCAFP#50 operates up to 32 MHz using its high-speed on-chip oscillator, achieving 44 DMIPS performance. Its minimum instruction execution time is 0.03125 µs at this frequency, and it supports dynamic clock switching down to 32.768 kHz for ultra-low-power RTC operation with 30.5 µs instruction time. The R5F104LCAFP#50 maintains full peripheral functionality across this entire frequency range.

Does the R5F104LCAFP#50 support in-system programming and secure firmware updates?

Yes, the R5F104LCAFP#50 supports full in-system programming via its on-chip debug interface and self-programming capability. It includes boot swapping, flash shield window protection, and block-erase prohibition to prevent unauthorized rewriting. Firmware updates can be performed in the field without removing the R5F104LCAFP#50 from the PCB, with background operation allowing code execution during data flash writes.

What are the analog capabilities of the R5F104LCAFP#50, and how are they configured?

The R5F104LCAFP#50 integrates a 10-bit successive-approximation ADC with 20 input channels, internal 1.45 V reference voltage, and an on-die temperature sensor. It also includes up to two comparator channels supporting high-speed, low-speed, and window modes with selectable internal or external references. All analog functions are software-configurable via dedicated registers and require no external components for basic operation. The R5F104LCAFP#50's ADC supports scan mode and hardware trigger linkage via ELC.

How does the Event Link Controller (ELC) enhance system efficiency in the R5F104LCAFP#50?

The ELC in the R5F104LCAFP#50 enables direct hardware-to-peripheral event triggering - for example, an ADC conversion completion can automatically start a DMA transfer or trigger a timer capture without CPU involvement. This reduces interrupt overhead, lowers power consumption by minimizing CPU wake-ups, and improves real-time response consistency. The R5F104LCAFP#50 supports 19–26 configurable ELC event sources depending on variant configuration.

What packaging and compliance information applies to the R5F104LCAFP#50?

The R5F104LCAFP#50 is supplied in a 64-pin LQFP package (12 × 12 mm, 0.65 mm pitch) with lead-free, RoHS-compliant finish and moisture sensitivity level 3. It meets JEDEC J-STD-020D reflow profile requirements and is rated for industrial temperature operation (−40°C to +85°C). The "#50" suffix indicates embossed tape packaging per Renesas specification, compatible with automated SMT placement equipment. The R5F104LCAFP#50 carries full Renesas part traceability and lot documentation.