Renesas R5F10RLCANB#U0

Overview

R5F10RLCANB#U0 from Renesas is a 64-pin HWQFN-packaged 16-bit RL78/L12 microcontroller with 32 KB flash, 2 KB data flash, 1.5 KB RAM, integrated LCD controller (up to 39 seg × 8 com), and CAN 2.0B interface - designed for ultra-low-power LCD-based industrial instrumentation and metering applications operating from 1.6 V to 5.5 V.

For engineers reviewing the R5F10RLCANB#U0 datasheet, R5F10RLCANB#U0 pinout, R5F10RLCANB#U0 application, or R5F10RLCANB#U0 equivalent, key selection criteria include its 0.64 µA RTC+LVD halt current, 31 DMIPS @ 24 MHz performance, CAN bus support, and hardware LCD driving capability with capacitor-split or internal-boost operation.

Technical Context

The R5F10RLCANB#U0 implements the RL78 16-bit CISC Harvard architecture with 3-stage pipeline, delivering 86% of instructions in 1–2 clock cycles. It integrates a dedicated CAN 2.0B controller with message objects, FIFO, and automatic retransmission - independent of CPU load.

Its LCD controller supports waveform types A/B, 16-step contrast adjustment, blinking, and three drive methods (capacitor split, internal boost, resistance division), with dedicated VL1–VL4 power rails and CAPL/CAPH terminals for external charge pump capacitors.

Key Specifications

Pinout & Package

Package: HWQFN-64 (8 mm × 8 mm, 0.4 mm pitch), exposed die pad (EVSS/EVDD), RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10RLCANB#U0, R5F10RLCAFB#V0 offers identical LCD and low-power features but omits CAN - making it suitable for cost-sensitive standalone displays. R5F10PLGAB#U0 replaces CAN with USB 2.0 FS, shifting focus to PC-connected instrumentation rather than industrial fieldbus nodes.

Availability

R5F10RLCANB#U0 is available at Aetrix Electronics and suitable for smart metering, industrial HMI panels, building automation sensor nodes, and portable gas detectors requiring stable component supply across long production lifecycles.

Supply support for R5F10RLCANB#U0 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/L12 product line delivers true ultra-low-power operation with integrated LCD driving and CAN connectivity - engineered specifically for cost-sensitive, battery-powered industrial and utility metering applications.

FAQ

What is the maximum operating frequency and performance of the R5F10RLCANB#U0?

The R5F10RLCANB#U0 operates at up to 24 MHz using its high-speed on-chip oscillator with ±1% accuracy across 1.8–5.5 V and −20°C to 85°C. It delivers 31 DMIPS at this frequency, enabled by an RL78 16-bit CISC core with 3-stage pipeline and 86% of instructions executed in 1–2 clock cycles. This performance level supports real-time control tasks in metering and HMI applications without external acceleration.

Does the R5F10RLCANB#U0 support CAN FD or only classical CAN 2.0B?

The R5F10RLCANB#U0 implements a classical CAN 2.0B controller compliant with ISO 11898-1:2003. It does not support CAN FD features such as flexible data-rate or extended payload length. Its CAN module provides 32 message objects, programmable bit timing, automatic retransmission, and loopback self-test - sufficient for deterministic industrial fieldbus communication at up to 1 Mbps.

How many LCD segments and commons can the R5F10RLCANB#U0 drive, and what drive methods are supported?

The R5F10RLCANB#U0 drives up to 39 segments and 8 commons (312 total segments) using its integrated LCD controller. It supports three drive methods: capacitor-split (0.12 µA LCD current at 3.0 V), internal voltage boost (0.63 µA at 3.0 V), and external resistance division. Dedicated VL1–VL4 pins and CAPL/CAPH terminals enable flexible bias generation without external components in most configurations.

What is the lowest power consumption mode available on the R5F10RLCANB#U0, and what peripherals remain active?

The lowest power mode is Halt mode with RTC and LVD enabled, consuming just 0.64 µA at 25°C. In this state, the real-time clock maintains calendar/timekeeping, the low-voltage detector monitors supply integrity, and RAM contents are retained. The CPU, flash, and most peripherals are disabled - allowing rapid wake-up via RTC alarm, external interrupt, or LVD event while preserving critical state information.

Is the R5F10RLCANB#U0 qualified for industrial temperature range, and what packaging does it use?

Yes, the R5F10RLCANB#U0 is rated for −40°C to +105°C (Industrial grade 'G'), as confirmed by its part number suffix and Renesas documentation. It uses a 64-pin HWQFN package (8 mm × 8 mm, 0.4 mm pitch) with exposed thermal pad (EVSS/EVDD), optimized for compact industrial PCB layouts and thermal dissipation in enclosed enclosures.