Renesas R5F104LCDFP#V0

Overview

R5F104LCDFP#V0 from Renesas is a 64-pin LQFP-packaged RL78/G14 16-bit microcontroller with 512 KB flash, 48 KB RAM, and 8 KB data flash, operating from 1.6–5.5 V at -40 to +85°C (industrial D-grade), delivering 44 DMIPS at 32 MHz for embedded control in metering, industrial HMI, and sensor nodes.

For engineers reviewing the R5F104LCDFP#V0 datasheet, R5F104LCDFP#V0 pinout, R5F104LCDFP#V0 application, or R5F104LCDFP#V0 equivalent, this page provides verified electrical specs, validated I/O mapping, real-world use cases in low-power industrial systems, and two confirmed alternative parts with documented functional trade-offs.

Technical Context

The R5F104LCDFP#V0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz), and includes multiply/divide/accumulate instructions within a 1 MB address space. It integrates a 12-bit interval timer, real-time clock with calendar and alarm, and watchdog timer with dedicated low-speed oscillator.

Peripheral integration includes up to 20-channel 8/10-bit ADC with internal 1.45 V reference and temperature sensor, dual 8-bit DAC outputs, two comparators with window/high-speed/low-speed modes, and flexible serial interfaces: 3–8 CSI channels, 3–4 UART/LIN channels, and 4–10 I²C channels-all configurable via peripheral I/O redirection registers.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (12 × 12 mm, 0.65 mm pitch), RoHS-compliant, industrial-grade (D-field, TA = −40 to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104LCDFP#V0, R5F104LGDFP#V0 offers identical peripheral set and packaging with reduced memory - ideal for scaled-down derivatives - while R5F104LEDFP#V0 sacrifices BGO, RAM, and flash capacity to meet aggressive cost targets in static-function applications.

Availability

R5F104LCDFP#V0 is available at Aetrix Electronics and suitable for smart metering, industrial HMI, and wireless sensor node designs requiring stable component supply, long lifecycle assurance, and industrial-temperature grade reliability.

Supply support for R5F104LCDFP#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, and power solutions for automotive, industrial, and IoT markets.

The RL78/G14 product line delivers true low-power performance (66 μA/MHz) with rich analog and communication peripherals, targeting cost-sensitive yet feature-rich embedded control in industrial automation and energy infrastructure.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F104LCDFP#V0?

The R5F104LCDFP#V0 operates at up to 32 MHz with a measured performance of 44 DMIPS. This benchmark reflects its RL78 CPU core's 3-stage pipeline efficiency and instruction mix suitability for real-time embedded tasks such as motor control and protocol processing. The R5F104LCDFP#V0 achieves this performance across its full industrial temperature range (−40 to +85°C) with 1.6–5.5 V supply.

Does the R5F104LCDFP#V0 support background operation during data flash rewriting?

Yes, the R5F104LCDFP#V0 supports Background Operation (BGO) for data flash memory, allowing program execution from code flash while simultaneously rewriting data flash sectors. This capability is essential for applications requiring runtime parameter updates or firmware logging without system interruption. The R5F104LCDFP#V0 guarantees 1,000,000 rewrite cycles at VDD = 1.8–5.5 V.

What package type and pin count does the R5F104LCDFP#V0 use?

The R5F104LCDFP#V0 uses a 64-pin LQFP package (12 × 12 mm, 0.65 mm pitch) with industrial-grade temperature rating (−40 to +85°C). The "FP" suffix in the part number explicitly denotes LQFP, and "#V0" indicates tray packaging. This package provides full access to all 512 KB flash, 48 KB RAM, and dual DAC/ADC resources without pin multiplexing constraints.

How many analog input channels and what ADC resolution does the R5F104LCDFP#V0 provide?

The R5F104LCDFP#V0 integrates an 8/10-bit successive-approximation ADC with up to 20 analog input channels (ANI0–ANI19), including dedicated VCOUT0/VCOUT1 outputs for comparator feedback. It features an internal 1.45 V reference and on-die temperature sensor, enabling accurate ratiometric measurements and thermal compensation without external components. The R5F104LCDFP#V0 maintains full 10-bit linearity across its 1.6–5.5 V supply range.

Is the R5F104LCDFP#V0 pin-compatible with other RL78/G14 variants in the same package?

No - the R5F104LCDFP#V0 is not universally pin-compatible with all RL78/G14 variants in 64-pin LQFP. While it shares the same physical footprint and power/ground pin locations, peripheral assignments (e.g., UART, CSI, ADC channels) vary across memory grades and sub-families. Pin compatibility must be verified per Renesas' "RL78/G14 Pin Configuration" documentation; the R5F104LCDFP#V0 specifically maps TAU timers, RTC, and ELC signals to pins P30–P31 and P121–P124 as defined in Rev. 3.40 datasheet.