Renesas R5F10WLGGFB#30

Overview

R5F10WLGGFB#30 from Renesas is a 64-pin LFQFP, industrial-grade RL78/L13 16-bit microcontroller with 128 KB flash, 8 KB RAM, and integrated LCD controller/driver supporting up to 51 segment × 4 common outputs. It operates from 1.6 V to 5.5 V, delivers 31 DMIPS at 24 MHz, and achieves ultra-low power consumption (71 μA/MHz active, 0.61 μA in RTC+LVD STOP mode), targeting battery-powered LCD display systems in smart meters and industrial HMI.

For engineers reviewing the R5F10WLGGFB#30 datasheet, R5F10WLGGFB#30 pinout, R5F10WLGGFB#30 application, or R5F10WLGGFB#30 equivalent, this page provides verified technical context, exact pin functions for 64-pin LFQFP package, real-time clock and LCD driver design implications, and validated alternative parts for industrial temperature-range migration.

Technical Context

The R5F10WLGGFB#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). Its memory map spans 1 MB address space with 128 KB code flash (1 KB block erase), 4 KB data flash (1M rewrite cycles, background operation), and 8 KB on-chip RAM.

It integrates dual-clock domain operation: high-speed main system clock (up to 24 MHz via on-chip oscillator or external crystal) and independent 32.768 kHz subsystem clock for RTC2, LVD, and low-power modes. The LCD controller supports three voltage generation methods (internal boost, capacitor split, external resistor division) and drives up to 51 segments with 4 commons in 64-pin configuration.

Key Specifications

Pinout & Package

Package: 64-pin LFQFP (10 × 10 mm, 0.50 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 R5F10WLGGFB#30, R5F10WMGGFB#30 offers higher I/O density and ADC channel count at the cost of larger package and non-interchangeable pinout, while R5F10WLFGFB#30 provides identical functionality in the same footprint with reduced memory - enabling direct substitution where firmware size permits.

Availability

R5F10WLGGFB#30 is available at Aetrix Electronics and suitable for smart metering, industrial HMI, and portable medical device applications requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for R5F10WLGGFB#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 is engineered for ultra-low-power LCD-based applications, integrating high-efficiency processing, robust real-time clock, and flexible display driving in a single chip - targeting battery-operated and thermally constrained industrial interfaces.

FAQ

What is the maximum operating frequency and corresponding power consumption of the R5F10WLGGFB#30?

The R5F10WLGGFB#30 achieves 31 DMIPS at 24 MHz using its high-speed on-chip oscillator. At this frequency, active current is specified at 71 μA/MHz (1.7 mA typical at 24 MHz, VDD = 3.3 V, TA = 25°C). In STOP mode with RTC2 and LVD enabled, it draws only 0.61 μA - verified per datasheet Section 2.1 under industrial temperature conditions.

Does the R5F10WLGGFB#30 support hardware-based LCD bias generation without external components?

Yes, the R5F10WLGGFB#30 includes an internal voltage boosting circuit for LCD bias, allowing operation with only two external capacitors (CAPH/CAPL). It also supports capacitor-split and external resistor-division methods - all selectable via register configuration. This eliminates need for external charge-pump ICs or resistor networks in most segment-LCD implementations.

How many UART interfaces does the R5F10WLGGFB#30 provide, and which support LIN bus?

The R5F10WLGGFB#30 provides three UART channels. UART0 and UART1 support LIN-bus protocol (LINSEL pin controlled), while UART2 is standard UART only. All three operate independently and can be assigned to different pins via Peripheral I/O Redirection (PIOR) register, enabling flexible routing for multi-node communication topologies.

What is the data flash endurance and voltage range for reprogramming the R5F10WLGGFB#30?

The R5F10WLGGFB#30 features 4 KB of data flash rated for 1,000,000 write/erase cycles (typical). Reprogramming is supported across the full operating voltage range: VDD = 1.8 V to 5.5 V. Background operation (BGO) allows CPU execution from code flash during data flash writes - ensuring deterministic real-time performance during logging or parameter updates.

Is the R5F10WLGGFB#30 pin-compatible with other RL78/L13 variants in the 64-pin LFQFP package?

Yes, all RL78/L13 64-pin LFQFP variants - including R5F10WLAAFB#30 through R5F10WLGGFB#30 and R5F10WLAGFB#30 - share identical pinout, electrical characteristics, and mechanical dimensions. Memory size (16–128 KB flash), temperature grade (A or G), and ordering suffix (#30 tray) are the only differences - enabling seamless migration within the same footprint.