Renesas R5F104LFAFP#V0

Overview

R5F104LFAFP#V0 from Renesas is a 64-pin LQFP-0.65mm, 512 KB flash, 48 KB RAM RL78/G14 16-bit microcontroller operating at 32 MHz (44 DMIPS), featuring ultra-low power consumption (66 μA/MHz active, 0.60 μA RTC+LVD mode), 1.6–5.5 V supply, and integrated 10-bit ADC (20 channels), RTC, and multiple serial interfaces for industrial control and sensor node applications.

For engineers reviewing the R5F104LFAFP#V0 datasheet, R5F104LFAFP#V0 pinout, R5F104LFAFP#V0 application, or R5F104LFAFP#V0 equivalent, key selection considerations include its 64-pin LQFP-0.65 mm package, 512 KB code flash with 4 KB data flash, 48 KB RAM, -40 to +85°C industrial temperature grade (D), and support for UART/LIN, I²C, CSI, and 12-channel 16-bit timers.

Technical Context

The R5F104LFAFP#V0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 μs @32 MHz to 30.5 μs @32.768 kHz). It integrates a Data Transfer Controller (DTC) for autonomous memory transfers and an Event Link Controller (ELC) enabling hardware-triggered peripheral chaining without CPU intervention.

Its power management includes HALT, STOP, and SNOOZE modes, on-chip POR and 14-level LVD, and a high-accuracy ±1.0% on-chip oscillator (1–64 MHz selectable). The device supports background operation (BGO) during data flash rewriting and self-programming with boot swap and flash shield window functions.

Key Specifications

Pinout & Package

Package: 64-pin LQFP, 12 × 12 mm, 0.65 mm pitch (PLQP0064JA-A code), lead-free, RoHS compliant. Thermal pad not present; standard surface-mount assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104LGAFP#V0, the R5F104LFAFP#V0 provides 128 KB additional flash and 16 KB more RAM for complex protocol stacks or data buffering; versus R5F104LHAFP#V0, it trades extended temperature capability for lower unit cost in ambient-controlled settings.

Availability

R5F104LFAFP#V0 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, energy metering interfaces, and home appliance UI controllers requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.

Supply support for R5F104LFAFP#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 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 applications requiring robust peripheral integration, ultra-low standby current, and seamless toolchain support with CS+ and e2 studio.

FAQ

What is the maximum operating frequency and associated performance of the R5F104LFAFP#V0?

The R5F104LFAFP#V0 operates at a maximum frequency of 32 MHz, delivering 44 DMIPS of processing performance. Its RL78 CPU core achieves this with a 3-stage pipeline and supports configurable instruction timing-from 0.03125 μs at full speed to 30.5 μs in ultra-low-speed RTC mode. This enables deterministic real-time response while maintaining ultra-low power consumption (66 μA/MHz).

Does the R5F104LFAFP#V0 support in-system programming and secure firmware updates?

Yes, the R5F104LFAFP#V0 supports full in-system programming via its on-chip debug function and self-programming capabilities. It includes boot swap functionality and a flash shield window to protect critical firmware sections. These features allow secure, field-upgradable firmware without external programmers-essential for deployed industrial devices requiring remote maintenance.

What are the analog interface capabilities of the R5F104LFAFP#V0?

The R5F104LFAFP#V0 integrates a 10-bit successive-approximation ADC with up to 20 input channels, internal 1.45 V reference, and on-chip temperature sensor. It also includes an 8-bit DAC with up to two output channels (0–VDD range) and real-time output capability. These analog resources support sensor signal conditioning, closed-loop control, and calibration without external components.

How does the Event Link Controller (ELC) enhance real-time performance in the R5F104LFAFP#V0?

The ELC in the R5F104LFAFP#V0 enables direct hardware linking of up to 26 peripheral events-such as ADC conversion completion, timer overflow, or UART receive-without CPU intervention. This eliminates interrupt latency and software overhead, allowing deterministic sub-microsecond responses (e.g., triggering a PWM update immediately after ADC sampling), critical for motor control and precision timing applications.

What package and pin compatibility does the R5F104LFAFP#V0 offer for PCB design reuse?

The R5F104LFAFP#V0 uses a 64-pin LQFP package (12 × 12 mm, 0.65 mm pitch, PLQP0064JA-A code) with pin-compatible variants across the RL78/G14 family-including R5F104LGAFP#V0 (384 KB) and R5F104LHAFP#V0 (105°C grade). Pin functions are consistent across these parts, enabling drop-in memory or temperature-grade upgrades without layout changes.