Renesas R5F104LKGFB#30

Overview

R5F104LKGFB#30 from Renesas is a 64-pin LFQFP (0.5 mm pitch), industrial-grade RL78/G14 16-bit microcontroller with 512 KB flash, 8 KB data flash, 48 KB RAM, and operation up to 32 MHz delivering 44 DMIPS. It integrates RTC, 10-bit ADC (20 channels), dual DAC, UART/SPI/I²C interfaces, and ultra-low-power modes (0.60 μA in STOP with RTC+LVD) for embedded control in constrained environments.

For engineers reviewing the R5F104LKGFB#30 datasheet, R5F104LKGFB#30 pinout, R5F104LKGFB#30 application, or R5F104LKGFB#30 equivalent, key selection criteria include its -40°C to +105°C industrial temperature rating, 64-pin LFQFP package with 0.5 mm pitch, integrated event link controller (ELC) for peripheral coordination, and support for background data flash rewriting (BGO) without CPU stall.

Technical Context

The R5F104LKGFB#30 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 µs (32 MHz) to 30.5 µs (32.768 kHz). Its power architecture enables HALT, STOP, and SNOOZE modes, with real-time clock and low-voltage detector (14-level LVD) tightly coupled to wake-up and safety logic.

Peripheral integration includes Timer Array Unit (TAU) with 8 channels, 12-bit interval timer, watchdog timer, and Event Link Controller (ELC) enabling direct hardware-triggered peripheral activation - eliminating CPU polling overhead for time-critical signal chains in motor control or sensor aggregation.

Key Specifications

Pinout & Package

Package: 64-pin LFQFP, 10 × 10 mm body, 0.5 mm pitch, exposed pad not present (non-HWQFN).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104LKGFB#30, R5F104LLGFB#30 reduces flash/RAM capacity while retaining identical industrial temperature rating and peripheral set - ideal for firmware-optimized deployments; R5F104LKAFB#30 maintains full memory resources but relaxes temperature grade, lowering procurement cost for non-industrial use cases.

Availability

R5F104LKGFB#30 is available at Aetrix Electronics and suitable for smart metering, industrial motor drives, home appliance control, and building automation sensor nodes requiring stable component supply across long product lifecycles.

Supply support for R5F104LKGFB#30 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 industrial control applications - balancing performance, integration, and energy efficiency.

FAQ

What is the maximum operating frequency and corresponding performance of the R5F104LKGFB#30?

The R5F104LKGFB#30 operates at up to 32 MHz using its high-accuracy on-chip oscillator (±1.0% over -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 (at 32 MHz) down to 30.5 µs (at 32.768 kHz), enabling both high-throughput and ultra-low-power operation within the same device.

Does the R5F104LKGFB#30 support simultaneous execution and data flash rewriting?

Yes, the R5F104LKGFB#30 supports Background Operation (BGO) for data flash. This allows the CPU to execute instructions from program memory while data flash is being rewritten - critical for reliable over-the-air updates or runtime parameter logging without system interruption or timing jitter.

What are the power consumption characteristics of the R5F104LKGFB#30 in low-power modes?

The R5F104LKGFB#30 achieves 66 μA/MHz in HALT mode and just 0.60 μA in STOP mode with RTC and LVD active - verified at VDD = 1.8–5.5 V and TA = -40°C to +105°C. These values enable multi-year battery life in metering and sensor applications, with fast wake-up from STOP (<10 µs) via multiple sources including RTC alarm and external interrupts.

How many analog-to-digital converter channels does the R5F104LKGFB#30 provide, and what is their resolution?

The R5F104LKGFB#30 integrates a 10-bit successive-approximation ADC with up to 20 input channels, operating across the full 1.6–5.5 V supply range. It includes an internal 1.45 V reference and temperature sensor, and supports simultaneous sampling on multiple channels - essential for synchronized multi-sensor acquisition in motor control or energy monitoring.

Is the R5F104LKGFB#30 pin-compatible with other RL78/G14 variants in the same package?

Yes, all RL78/G14 devices in the 64-pin LFQFP (0.5 mm pitch) package - including R5F104LKGFB#30, R5F104LLGFB#30, and R5F104LKAFB#30 - share identical pinouts and electrical characteristics. Firmware and PCB layouts are interchangeable across these variants, enabling scalable design reuse based on memory and temperature requirements.