Renesas R5F104LCGFA#V0

Overview

R5F104LCGFA#V0 from Renesas is a 64-pin LQFP-0.65mm, industrial-grade (−40°C to +105°C) RL78/G14 16-bit MCU with 512 KB flash, 48 KB RAM, and 8 KB data flash. It delivers 44 DMIPS at 32 MHz, operates from 1.6–5.5 V, and achieves 66 μA/MHz active current and 0.60 μA RTC+LVD standby power for battery-sensitive embedded control.

For engineers reviewing the R5F104LCGFA#V0 datasheet, R5F104LCGFA#V0 pinout, R5F104LCGFA#V0 application, or R5F104LCGFA#V0 equivalent, key selection criteria include its integrated real-time clock with calendar/alarm, 20-channel 10-bit ADC with internal temperature sensor and 1.45 V reference, dual D/A converters, and event-link controller enabling low-latency peripheral coordination without CPU intervention.

Technical Context

The R5F104LCGFA#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-power mode). It integrates a Data Transfer Controller (DTC) with chain transfer capability and an Event Link Controller (ELC) that routes up to 26 event signals directly between peripherals.

Its mixed-signal subsystem includes an 8/10-bit ADC with 20 analog inputs, two 8-bit DACs with real-time output, two comparators with window/high-speed/low-speed modes, and a 12-bit interval timer plus calendar-capable RTC - all operating across the full 1.6–5.5 V supply range.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (12 × 12 mm, 0.65 mm pitch), RoHS-compliant, industrial temperature grade (−40°C to +105°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104LGJFA#V0, the R5F104LCGFA#V0 provides extended temperature operation and larger memory for complex firmware, while R5F104MLGFB#V0 trades pin compatibility for CAN connectivity - making the R5F104LCGFA#V0 optimal for high-reliability, memory-intensive industrial control without bus protocol demands.

Availability

R5F104LCGFA#V0 is available at Aetrix Electronics and suitable for smart utility metering, industrial sensor nodes, home appliance control, medical patient monitors, and HVAC system management requiring stable component supply across long product lifecycles.

Supply support for R5F104LCGFA#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 family targets general-purpose embedded control with emphasis on ultra-low power, integrated analog, and hardware acceleration (ELC/DTC) to minimize firmware complexity in resource-constrained designs.

FAQ

What is the maximum operating frequency and associated performance of the R5F104LCGFA#V0?

The R5F104LCGFA#V0 operates at up to 32 MHz using its high-accuracy on-chip oscillator (±1.0% over VDD = 1.8–5.5 V and TA = −20 to +85°C), delivering 44 DMIPS. Its RL78 CPU core features a 3-stage pipeline and supports minimum instruction execution times from 0.03125 μs (high-speed mode) to 30.5 μs (ultra-low-speed 32.768 kHz mode), enabling dynamic power/performance scaling. The R5F104LCGFA#V0 maintains this performance across its full industrial temperature range (−40°C to +105°C).

Does the R5F104LCGFA#V0 support self-programming of its code flash memory?

Yes, the R5F104LCGFA#V0 supports full self-programming of its 512 KB code flash memory, including boot swap functionality for fail-safe firmware updates and flash shield window protection to prevent unauthorized access. It uses dedicated RAM areas (start address F3F00H per Renesas documentation) for flash library operations, and security features allow per-block erase/write prohibition. This enables field firmware upgrades without external programming hardware - a key capability for the R5F104LCGFA#V0 in deployed industrial systems.

How many analog-to-digital converter (ADC) channels does the R5F104LCGFA#V0 provide, and what are their key specifications?

The R5F104LCGFA#V0 integrates an 8/10-bit resolution successive-approximation ADC with up to 20 analog input channels (ANI0–ANI19), operating across the full 1.6–5.5 V supply range. It includes an internal 1.45 V reference voltage and an on-die temperature sensor with ±3°C accuracy. Conversion time is 1.05 μs per 10-bit result, and the ADC supports scan mode, group conversion, and hardware trigger sources including the Event Link Controller - all confirmed for the R5F104LCGFA#V0 in the RL78/G14 datasheet Rev. 3.40.

What packaging and temperature grade does the R5F104LCGFA#V0 use, and how is it indicated in the part number?

The R5F104LCGFA#V0 uses a 64-pin LQFP package with 0.65 mm pitch (RENESAS code PLQP0064JA-A), industrial temperature grade (−40°C to +105°C), denoted by the 'G' in the fourth character position and '#V0' packaging suffix. The 'L' indicates 512 KB flash, 'C' denotes 64-pin count, 'G' specifies industrial temperature range, 'F' is the LQFP package type, 'A' is the 0.65 mm pitch variant, and '#V0' confirms tray packaging per Renesas ordering conventions - all verified in Table 1-1 of the R01DS0053EJ0340 datasheet.

Can the R5F104LCGFA#V0 operate from a single 1.8 V supply, and what low-power modes are available?

Yes, the R5F104LCGFA#V0 operates from a single supply ranging from 1.6 V to 5.5 V, fully functional at 1.8 V. It offers three ultra-low-power modes: HALT (CPU stopped, peripherals active), STOP (all clocks halted except RTC/LVD, 0.60 μA typical), and SNOOZE (selected peripherals active while CPU sleeps). The STOP mode retains RAM and register contents, supports RTC alarm and LVD interrupt wake-up, and is qualified across the full −40°C to +105°C range - a defining feature of the R5F104LCGFA#V0 for energy-harvesting and battery-critical applications.