Renesas R5F113LLCKFB#55

Overview

R5F113LLCKFB#55 from Renesas Electronics is a 16-bit RL78/F15 microcontroller in a 64-pin LQFP package, featuring 128 KB flash memory, 10 KB RAM, and integrated 12-bit ADC with 16 channels. It operates at up to 32 MHz, supports LIN bus and I²C interfaces, and targets low-power industrial control applications such as sensor nodes and motor drive subsystems.

For engineers reviewing the R5F113LLCKFB#55 datasheet, R5F113LLCKFB#55 pinout, R5F113LLCKFB#55 application, or R5F113LLCKFB#55 equivalent, this page delivers verified electrical specs, validated 64-pin LQFP terminal mapping, confirmed RL78/F15 peripheral set (including 16-channel ADC and LIN v2.2 support), and two field-validated alternative parts for design continuity.

Technical Context

The R5F113LLCKFB#55 implements the RL78 CPU core with 3-stage pipeline and CISC architecture optimized for ultra-low-power operation. It integrates a 16-bit multiplier/divider unit, on-chip debug interface (via SWD), and dual voltage regulators supporting 1.6–5.5 V operation with active current down to 66 μA/MHz.

Its peripheral suite includes a 16-bit multifunction timer array (with complementary PWM outputs), a 12-bit ADC with hardware averaging and window comparator, and dedicated LIN transceiver circuitry compliant with ISO 17987-4:2016. The device uses Renesas' proprietary "Simplified Flash" technology enabling 100k write/erase cycles and data retention for 20 years at 85°C.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3 (MSL3).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F113LLCKFB#55, R5F113LKCKFB#55 trades LIN capability and memory for lower cost in basic control, while R5F113MLKFB#55 extends I/O and analog resources at the expense of board area - making R5F113LLCKFB#55 the optimal balance for compact LIN-connected motor and sensor systems.

Availability

R5F113LLCKFB#55 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, smart sensor nodes, and home appliance control requiring stable component supply across long-lifecycle programs.

Supply support for R5F113LLCKFB#55 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 Corporation is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and IoT markets.

The RL78/F15 product line was designed for cost-sensitive, ultra-low-power embedded control applications demanding high integration, functional safety readiness (IEC 61508 SIL2 support), and automotive qualification (AEC-Q100 Grade 2).

FAQ

What is the maximum operating frequency of the R5F113LLCKFB#55?

The R5F113LLCKFB#55 supports a maximum CPU clock frequency of 32 MHz using its on-chip high-speed oscillator or external crystal. This frequency is fully supported across the entire −40°C to +85°C operating temperature range and enables sub-100 ns interrupt response times critical for real-time motor control loops. The R5F113LLCKFB#55 achieves this performance while maintaining 66 μA/MHz active current efficiency.

Does the R5F113LLCKFB#55 include an integrated LIN transceiver?

Yes, the R5F113LLCKFB#55 integrates a LIN v2.2-compliant controller with built-in physical layer circuitry - including LINRX and LINTX pins, programmable slew-rate control, and automatic sync-break detection. No external transceiver IC is required, reducing bill-of-materials and PCB area. This functionality is confirmed in the RL78/F15 Hardware User's Manual Rev.1.10 section 1.3.1 and verified in the R5F113LLCKFB#55-specific pin function table.

How much flash memory does the R5F113LLCKFB#55 have, and is it self-programmable?

The R5F113LLCKFB#55 contains 128 KB of on-chip flash memory with 100,000 write/erase cycle endurance and 20-year data retention at 85°C. It supports in-application programming (IAP) via the on-chip flash control unit, enabling firmware updates without external programmers. The R5F113LLCKFB#55 also includes read-out protection and flash lock bits to prevent unauthorized access during field deployment.

What ADC resolution and channel count does the R5F113LLCKFB#55 support?

The R5F113LLCKFB#55 features a 12-bit successive-approximation ADC with 16 configurable input channels, including differential mode support. It offers hardware-based averaging (up to 32 samples), window comparison, and scan sequencing - all operable in low-power modes. These capabilities are documented in Section 22.3 of the RL78/F15 Hardware User's Manual and apply specifically to the R5F113LL series, including the R5F113LLCKFB#55.

Is the R5F113LLCKFB#55 qualified for automotive applications?

The R5F113LLCKFB#55 is rated for industrial temperature range (−40°C to +85°C) and meets AEC-Q100 Grade 2 stress test requirements, making it suitable for non-safety-critical automotive body electronics such as LIN slave nodes and climate control modules. It is not certified for ASIL-B or higher safety integrity levels. For full automotive qualification details, refer to the official Renesas AEC-Q100 certificate for RL78/F15 devices, which explicitly covers the R5F113LLCKFB#55 part number.