Renesas R5F100SKDFB#30

Overview

R5F100SKDFB#30 from Renesas is a 32-bit RL78/G13 microcontroller with 256 KB flash, 8 KB data flash, and 20 KB RAM, operating at up to 32 MHz (41 DMIPS), featuring ultra-low power consumption (66 μA/MHz active, 0.57 μA RTC+LVD mode), 12-bit ADC (26 channels), multiple serial interfaces (UART/LIN, I²C, CSI), and real-time clock - deployed in industrial sensor nodes and battery-powered control modules.

For engineers reviewing the R5F100SKDFB#30 datasheet, R5F100SKDFB#30 pinout, R5F100SKDFB#30 application, or R5F100SKDFB#30 equivalent, key selection criteria include its LFQFP-80 package, -40°C to +85°C industrial temperature grade (D), integrated data flash with 1M rewrite cycles, background operation capability, and hardware multiplier/divider for deterministic control math.

Technical Context

The R5F100SKDFB#30 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting configurable instruction execution time from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates on-chip debug, self-programming with boot swap, and flash shield window security.

Its peripheral set includes dual DMA controllers (4 channels), 16-bit timers (16 channels), 12-bit interval timer, calendar-based RTC with alarm/correction, watchdog timer with dedicated low-speed oscillator, and simplified SPI (CSI), UART/LIN, and I²C interfaces - all designed for deterministic real-time embedded control under variable voltage (1.6–5.5 V) and temperature conditions.

Key Specifications

Pinout & Package

Package: 80-pin LFQFP (12 × 12 mm, 0.5-mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100SKDFB#30, R5F101SKDFB#30 removes data flash to reduce cost and die size but retains identical real-time performance and peripheral count, while R5F100SLDFB#30 doubles flash and RAM for scalable firmware growth - making R5F100SKDFB#30 the optimal balance of embedded storage, computational throughput, and industrial reliability.

Availability

R5F100SKDFB#30 is available at Aetrix Electronics and suitable for industrial sensor hubs, smart energy metering, and building automation panels requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for R5F100SKDFB#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/G13 product line delivers true low-power 32-bit performance for general-purpose embedded control, targeting cost-sensitive, battery-operated, and industrial applications demanding high integration and long-term reliability.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating of the R5F100SKDFB#30?

The R5F100SKDFB#30 operates at up to 32 MHz with a measured performance of 41 DMIPS. This is achieved using the high-speed on-chip oscillator, which maintains ±1.0% accuracy across 1.8–5.5 V and –40°C to +85°C. The RL78 core's 3-stage pipeline and optimized instruction set deliver deterministic execution critical for real-time control loops in the R5F100SKDFB#30.

Does the R5F100SKDFB#30 support background data flash rewriting while executing application code?

Yes, the R5F100SKDFB#30 supports Background Operation (BGO) for data flash. During BGO, the CPU can execute instructions from program memory while the data flash is being rewritten - essential for uninterrupted logging in metering or sensor applications. The R5F100SKDFB#30's 8 KB data flash is rated for 1,000,000 rewrite cycles at VDD = 1.8–5.5 V.

What are the key power-saving modes supported by the R5F100SKDFB#30, and what is the lowest achievable current draw?

The R5F100SKDFB#30 supports HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it draws just 0.57 μA - enabling multi-year operation on coin-cell batteries. Its active-mode efficiency is 66 μA/MHz, verified at 32 MHz. These modes are controlled via dedicated system registers and respond to wake-up sources including pins, timers, and serial interrupts in the R5F100SKDFB#30.

How many analog input channels does the R5F100SKDFB#30's 12-bit ADC support, and what reference options are available?

The R5F100SKDFB#30 integrates a 12-bit A/D converter with up to 26 analog input channels. It supports external references or internal 1.45 V reference voltage. The AVREFP/AVREFM pins (P20/P21) allow differential measurement configurations, and the on-chip temperature sensor is accessible via ANI18 - all fully specified and tested across the industrial temperature range of the R5F100SKDFB#30.

Is the R5F100SKDFB#30 pin-compatible with other RL78/G13 variants in the same 80-pin LFQFP package?

Yes, the R5F100SKDFB#30 shares identical pinout and electrical characteristics with other RL78/G13 devices in the 80-pin LFQFP package (e.g., R5F100SLDFB#30, R5F101SKDFB#30), including identical power, ground, reset, and peripheral pin assignments. This enables hardware reuse across memory- or feature-tiered designs without PCB revision - a confirmed layout compatibility documented in Renesas' RL78/G13 pin configuration tables for the R5F100SKDFB#30.