Renesas R5F104LDGFB#V0

Overview

R5F104LDGFB#V0 from Renesas is a 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), industrial-grade RL78/G14 16-bit microcontroller with 512 KB flash, 48 KB RAM, and 8 KB data flash. It operates from 1.6–5.5 V, delivers 44 DMIPS at 32 MHz, and supports ultra-low-power modes (66 μA/MHz active, 0.60 μA RTC+LVD). It targets battery-powered industrial control and sensor interface applications requiring high integration and long-term reliability.

For engineers reviewing the R5F104LDGFB#V0 datasheet, R5F104LDGFB#V0 pinout, R5F104LDGFB#V0 application, or R5F104LDGFB#V0 equivalent, key selection criteria include its 64-pin LFQFP-0.5mm package, -40°C to +105°C industrial temperature grade (G), integrated RTC with calendar/alarm, dual 10-bit ADC (20-channel), and hardware event-linking capability via ELC for deterministic peripheral coordination.

Technical Context

The R5F104LDGFB#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). Its power management includes HALT, STOP, and SNOOZE modes, plus on-chip LVD with 14 selectable voltage thresholds and POR circuitry.

Peripheral integration includes Timer Array Unit (TAU) with up to 8 channels, 12-bit interval timer, real-time clock with calendar function, 3× UART/LIN, 4–10× I²C, 3–8× CSI, 16-bit DTC, and Event Link Controller (ELC) enabling direct hardware-triggered peripheral activation without CPU intervention.

Key Specifications

Pinout & Package

Package: 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), RoHS-compliant, industrial-grade (G) marking.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104LGFB#V0 and R5F104LLFB#V0, the R5F104LDGFB#V0 uniquely combines maximum memory (512 KB/48 KB), full industrial temperature range (-40°C to +105°C), and hardware features like ELC and BGO-making it optimal for next-generation, long-lifecycle industrial edge devices where future firmware growth and thermal robustness are mandatory.

Availability

R5F104LDGFB#V0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart meter interfaces, and PLC I/O modules requiring stable component supply, long-term lifecycle assurance, and guaranteed traceability.

Supply support for R5F104LDGFB#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 ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated industrial and consumer equipment requiring high integration, security, and long-term reliability.

FAQ

What is the maximum operating frequency and associated performance of the R5F104LDGFB#V0?

The R5F104LDGFB#V0 operates at up to 32 MHz with an RL78 CPU core delivering 44 DMIPS. Its high-accuracy on-chip oscillator maintains ±1.0% tolerance across 1.8–5.5 V and -20°C to +85°C, eliminating need for external crystals in many timing-critical applications. The core supports variable instruction timing-from 0.03125 μs at full speed to 30.5 μs in ultra-low-power 32.768 kHz mode-enabling dynamic power/performance scaling in the R5F104LDGFB#V0.

Does the R5F104LDGFB#V0 support in-system programming and secure firmware updates?

Yes, the R5F104LDGFB#V0 supports full in-system programming via on-chip debug interface and includes boot swap functionality for seamless firmware updates. Its flash shield window allows selective protection of critical code sections, while block erase prohibition prevents unauthorized modification of secured regions. The R5F104LDGFB#V0 also enables background operation (BGO), permitting program execution from flash memory during data flash rewrites-essential for reliable over-the-air updates and runtime parameter logging.

What analog peripherals are integrated into the R5F104LDGFB#V0 and how are they configured?

The R5F104LDGFB#V0 integrates a 10-bit successive-approximation ADC with up to 20 input channels, internal 1.45 V reference, and on-die temperature sensor. It also includes an 8-bit DAC with up to two output channels (0–VDD range) and real-time output capability. Analog pins P20 (AVREFP) and P21 (AVREFM) serve dual roles-as ADC reference terminals or general-purpose analog inputs-configurable via register settings. These resources are fully accessible in the R5F104LDGFB#V0's 64-pin LFQFP package without multiplexing conflicts.

How does the Event Link Controller (ELC) enhance real-time performance in the R5F104LDGFB#V0?

The Event Link Controller (ELC) in the R5F104LDGFB#V0 enables direct hardware-to-peripheral triggering-bypassing CPU intervention-for deterministic latency under 100 ns. For example, an RTC alarm event can directly start ADC conversion, which then triggers DMA transfer and UART transmission-all without software overhead. This capability is confirmed in the RL78/G14 datasheet for the R5F104LDGFB#V0 and supports up to 26 configurable event sources, making it ideal for time-critical industrial control loops and synchronized sensor acquisition in the R5F104LDGFB#V0.

What packaging and temperature specifications apply to the R5F104LDGFB#V0?

The R5F104LDGFB#V0 uses a 64-pin LFQFP package (10 × 10 mm, 0.5 mm pitch) with lead-free, RoHS-compliant finish. It is qualified for industrial operation from -40°C to +105°C (G-grade), verified per JEDEC JESD22-A108. The #V0 suffix denotes tray packaging per Renesas specification. This thermal rating, combined with its 1.6–5.5 V wide supply range and on-chip LVD, ensures reliable deployment in harsh factory-floor and outdoor infrastructure environments for the R5F104LDGFB#V0.