Renesas R5F100GKAFB#V0

Overview

R5F100GKAFB#V0 from Renesas is a 48-pin LFQFP-0.5mm-pitch 16-bit RL78/G13 microcontroller with 256 KB flash, 8 KB data flash, 20 KB RAM, 10-bit ADC (26 channels), and real-time clock - designed for low-power industrial control systems operating from -40°C to +105°C.

For engineers reviewing the R5F100GKAFB#V0 datasheet, R5F100GKAFB#V0 pinout, R5F100GKAFB#V0 application, or R5F100GKAFB#V0 equivalent, this device delivers verified ultra-low power consumption (66 μA/MHz active, 0.57 μA RTC+LVD mode), integrated LIN-capable UARTs, hardware DMA, and on-chip debug support for rapid embedded firmware development.

Technical Context

The R5F100GKAFB#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-speed mode). It integrates a 12-bit interval timer, calendar-based RTC with alarm and correction, and watchdog timer powered by dedicated low-speed oscillator.

Its peripheral set includes up to 16 channels of 16-bit timers, 3–10 I²C/Simplified I²C channels, 2–4 UART/LIN interfaces, 2–8 CSI/SPI channels, and a multiplier/divider unit supporting 16×16→32-bit signed/unsigned multiply and 32÷32→32-bit unsigned divide operations.

Key Specifications

Pinout & Package

Package: 48-pin LFQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3 per JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100GKAFB#V0, R5F101GKAFB#V0 removes data flash to reduce cost and die size while preserving all timing-critical peripherals, whereas R5F100GLAFB#V0 scales flash and RAM capacity for feature-rich firmware without changing PCB layout or driver software.

Availability

R5F100GKAFB#V0 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, factory automation I/O modules, and portable medical diagnostic equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F100GKAFB#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/G13 product line delivers true low-power 16-bit MCU performance for cost-sensitive industrial and consumer applications, emphasizing energy efficiency, integrated peripherals, and robust development tooling.

FAQ

What is the maximum operating frequency and corresponding power consumption of the R5F100GKAFB#V0?

The R5F100GKAFB#V0 operates up to 32 MHz using its high-speed on-chip oscillator, achieving 41 DMIPS performance at 66 μA/MHz typical active current. In STOP mode with only RTC and LVD active, it draws just 0.57 μA - verified per Renesas R01DS0131EJ0380 Rev.3.80 datasheet Section 1.1.

Does the R5F100GKAFB#V0 support LIN communication, and which peripherals implement it?

Yes, the R5F100GKAFB#V0 supports LIN 2.2 and SAE J2602 via its UART peripherals - specifically UART0 and UART1, both capable of generating LIN sync fields and detecting break conditions. This is confirmed in the "Serial interface" section of the RL78/G13 datasheet (R01DS0131EJ0380, Page 1).

What is the flash memory organization and security capability of the R5F100GKAFB#V0?

The R5F100GKAFB#V0 contains 256 KB of code flash organized in 1 KB blocks, with programmable block erase/write prohibition and flash shield window functions. These features prevent unauthorized readout or modification - detailed in Section 1.1 "Code flash memory" of R01DS0131EJ0380.

How many analog input channels does the R5F100GKAFB#V0 support, and what reference options are available?

The R5F100GKAFB#V0 supports up to 26 analog input channels with 10-bit resolution. It provides an internal 1.45 V reference voltage and supports external references via AVREFP/AVREFM pins - both specified in the "A/D converter" subsection of the RL78/G13 datasheet (R01DS0131EJ0380, Page 1).

Is the R5F100GKAFB#V0 pin-compatible with other RL78/G13 variants in the same 48-pin LFQFP package?

Yes - all RL78/G13 devices in the 48-pin LFQFP (FB) package, including R5F100GKAFB#V0, R5F100GLAFB#V0, and R5F101GKAFB#V0, share identical pinouts and electrical characteristics. This allows footprint reuse across memory and feature variants, as confirmed in Table 1-1 and Figure 1-1 of R01DS0131EJ0380.