Renesas R5F10WLDGFB#30

Overview

R5F10WLDGFB#30 from Renesas is a 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch) 16-bit RL78/L13 microcontroller with integrated LCD controller/driver, 48 KB flash, 1.5 KB RAM, and 4 KB data flash - designed for ultra-low-power LCD-based industrial instrumentation operating from 1.6 V to 5.5 V across −40°C to +105°C.

For engineers reviewing the R5F10WLDGFB#30 datasheet, R5F10WLDGFB#30 pinout, R5F10WLDGFB#30 application, or R5F10WLDGFB#30 equivalent, key selection criteria include its 36-segment/4-common LCD drive capability, 9-channel 8/10-bit ADC, dual comparators with internal reference, RTC2 with calendar and alarm, and support for LIN-bus UART in industrial-temperature environments.

Technical Context

The R5F10WLDGFB#30 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction execution time (0.04167 µs at 24 MHz high-speed on-chip oscillator or 30.5 µs at 32.768 kHz subsystem clock). It integrates a 12-bit interval timer, watchdog timer, and real-time clock 2 with 99-year calendar and correction function.

Its peripheral set includes an 8-channel timer array unit (TAU) supporting PWM, remote control output (REMOOUT), 4-channel DMA, and serial interfaces: 3 UART channels (one LIN-capable), 2 CSI/SPI channels, and 1 I²C channel - all accessible via programmable I/O redirection register (PIOR) for flexible pin assignment.

Key Specifications

Pinout & Package

Package: 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), RoHS-compliant, industrial-grade (G) marking. REGC requires 0.47–1 μF capacitor to VSS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10WLDGFB#30, R5F10WMDGFB#30 provides 48 KB additional flash for complex protocol stacks or GUI assets, while R5F10WMEGFB#30 offers 16 KB more flash and 2.5 KB more RAM for enhanced data buffering and multitasking - both retain identical peripheral configuration, LCD drive capability, and industrial thermal performance.

Availability

R5F10WLDGFB#30 is available at Aetrix Electronics and suitable for smart energy meters, industrial HMI panels, portable medical devices, and white goods control boards requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F10WLDGFB#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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/L13 product line delivers true low-power, LCD-integrated MCUs optimized for cost-sensitive, battery- or line-powered industrial and consumer instrumentation with stringent reliability requirements.

FAQ

What is the maximum LCD segment count supported by R5F10WLDGFB#30?

The R5F10WLDGFB#30 supports up to 36 segment outputs with 4 common lines (or 32 segments with 8 commons) using its integrated LCD controller/driver. This configuration is fixed for the 64-pin variant and does not scale to the 51-segment capability of the 80-pin RL78/L13 family members. The drive method - internal voltage boosting, capacitor split, or external resistor division - is software-selectable to match LCD glass requirements.

Does R5F10WLDGFB#30 support LIN bus communication?

Yes, R5F10WLDGFB#30 supports LIN bus communication via its UART2 peripheral, which is explicitly documented as LIN-bus capable in the RL78/L13 datasheet. The UART2 module includes LIN-specific features such as automatic sync-break detection and checksum generation, and it operates on dedicated pins (RxD2/P03 and TxD2/P04) without requiring external transceivers for basic node functionality.

What are the power supply requirements for R5F10WLDGFB#30 in industrial applications?

For industrial applications, R5F10WLDGFB#30 requires a VDD supply between 2.4 V and 5.5 V when operating across its full −40°C to +105°C temperature range. Its on-chip voltage detector (LVD) offers 14 programmable threshold levels (1.67–4.06 V) for reset or interrupt generation, and the REGC pin must be decoupled to VSS with a 0.47–1 μF capacitor to ensure regulator stability under load transients.

How many ADC channels does R5F10WLDGFB#30 have, and what resolution options are available?

R5F10WLDGFB#30 integrates a 9-channel 8/10-bit successive-approximation ADC. Resolution is selectable per conversion - 8-bit mode completes in 14 clocks, 10-bit in 19 clocks - with support for internal 1.45 V reference, AVREFP/AVREFM differential reference, or external reference inputs. Channels include ANI0–ANI1, ANI16–ANI21, and ANI22–ANI25, enabling simultaneous monitoring of multiple sensors or supply rails.

Can R5F10WLDGFB#30 operate from a 32.768 kHz crystal alone, and what functions remain active?

Yes, R5F10WLDGFB#30 can operate solely from a 32.768 kHz crystal connected to XT1/XT2, enabling ultra-low-power modes. In this configuration, the RTC2 calendar, 12-bit interval timer, watchdog timer, and LVD remain fully functional, while the CPU executes at 30.5 µs/instruction. The high-speed on-chip oscillator and flash memory are disabled, but RAM contents and data flash retention are preserved - ideal for timekeeping and wake-up event handling.