Renesas R5F104LGAFP#V0

Overview

R5F104LGAFP#V0 from Renesas is a 64-pin LQFP-0.65mm-pitch 16-bit RL78/G14 microcontroller with 512 KB flash, 48 KB RAM, and 8 KB data flash, operating from 1.6–5.5 V at -40°C to +85°C (A-grade), delivering 44 DMIPS at 32 MHz for industrial control, sensor hubs, and low-power HMI applications.

For engineers reviewing the R5F104LGAFP#V0 datasheet, R5F104LGAFP#V0 pinout, R5F104LGAFP#V0 application, or R5F104LGAFP#V0 equivalent, key selection criteria include its 512 KB code flash with self-programming, real-time clock with calendar, 20-channel 10-bit ADC, dual 8-bit DAC outputs, and integrated event link controller for deterministic peripheral triggering.

Technical Context

The R5F104LGAFP#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), plus multiply/divide/accumulate instructions and 1 MB address space. It integrates a Data Transfer Controller (DTC) with chain transfer and background operation during data flash rewriting.

Its peripheral set includes 12× 16-bit timers (TAU, RJ, RD, RG), 1× 12-bit interval timer, 1× real-time clock with alarm/calendar, 1× watchdog timer, up to 10× I²C/Simp-I²C channels, 4× UART/LIN, 8× CSI/SPI, and an Event Link Controller (ELC) enabling 19–26 event sources to trigger peripheral functions without CPU intervention.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (12 × 12 mm, 0.65 mm pitch), RoHS-compliant, surface-mount, with exposed thermal pad not present (non-HWQFN).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104LHAFP#V0 and R5F104LLAFP#V0, the R5F104LGAFP#V0 provides maximum on-chip memory headroom (512 KB flash/48 KB RAM) for complex firmware with OTA updates, real-time analytics, or multi-protocol stacks-without changing PCB layout or pin compatibility.

Availability

R5F104LGAFP#V0 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, human-machine interfaces, and home appliance control requiring stable component supply and long-term production support.

Supply support for R5F104LGAFP#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, battery-operated, and thermally constrained embedded systems requiring high integration and robust peripheral sets.

FAQ

What is the maximum operating frequency and corresponding performance of the R5F104LGAFP#V0?

The R5F104LGAFP#V0 operates at up to 32 MHz with its high-speed on-chip oscillator, delivering 44 DMIPS of processing performance. Its RL78 CPU core supports instruction execution times ranging from 0.03125 µs (at 32 MHz) down to 30.5 µs (at 32.768 kHz), enabling dynamic clock scaling for power optimization. The R5F104LGAFP#V0 maintains full peripheral functionality across this range, including ADC sampling and timer capture.

Does the R5F104LGAFP#V0 support in-circuit debugging and programming?

Yes, the R5F104LGAFP#V0 includes a full on-chip debug function compatible with Renesas E2/E2 Lite emulators. Pins P50 (TOOLRxD) and P51 (TOOLTxD) provide dedicated debug serial interface, and the device supports flash self-programming with boot swapping. The R5F104LGAFP#V0 also features secure flash protection to prevent unauthorized readout during development or field deployment.

How many analog-to-digital converter (ADC) channels does the R5F104LGAFP#V0 support, and what is its resolution?

The R5F104LGAFP#V0 integrates a 10-bit successive-approximation ADC with up to 20 analog input channels (ANI0–ANI19), supporting single-ended and differential measurements. It includes an internal 1.45 V reference voltage and an on-chip temperature sensor. The ADC operates across the full 1.6–5.5 V supply range, with conversion time programmable from 1.5 to 22.5 µs per sample depending on resolution and clock settings.

What packaging and pin configuration does the R5F104LGAFP#V0 use?

The R5F104LGAFP#V0 uses a 64-pin LQFP package with 0.65 mm pitch (RENESAS code PLQP0064JA-A), measuring 12 × 12 mm. It features four dedicated power pins (VDD/VSS), a REGC bypass capacitor terminal, RESET, crystal oscillator inputs (X1/X2), and 52 general-purpose I/O pins-including 20 analog-capable inputs and multiple peripheral function overlays managed via PIOR registers.

Can the R5F104LGAFP#V0 operate from a single 1.8 V supply, and what low-power modes are available?

Yes, the R5F104LGAFP#V0 operates from 1.6 V to 5.5 V, making it fully compatible with 1.8 V systems. It offers three ultra-low-power modes: HALT (CPU stopped, peripherals active), STOP (all clocks halted except sub-clock), and SNOOZE (selected peripherals active while CPU sleeps). In STOP mode with only RTC and LVD enabled, current consumption drops to 0.60 μA-enabling multi-year battery life in always-on sensor applications using the R5F104LGAFP#V0.