Renesas R5F10WMGAFA#30

Overview

R5F10WMGAFA#30 from Renesas is an 80-pin LQFP MCU in the RL78/L13 family, integrating LCD controller/driver, 128 KB flash, 8 KB RAM, and 4 KB data flash. 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 mode), targeting battery-powered LCD-based metering and industrial HMI applications.

For engineers reviewing the R5F10WMGAFA#30 datasheet, R5F10WMGAFA#30 pinout, R5F10WMGAFA#30 application, or R5F10WMGAFA#30 equivalent, key selection criteria include its 51-segment/8-common LCD drive capability, 12-channel 8/10-bit ADC, dual comparators with internal reference, 3 UART channels (including LIN support), and hardware RTC with calendar and alarm - all within a consumer-grade temperature range (−40°C to +85°C).

Technical Context

The R5F10WMGAFA#30 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.04167 µs (24 MHz on-chip oscillator) to 30.5 µs (32.768 kHz subsystem clock). Its memory map spans 1 MB, with configurable flash block erase (1 KB), self-programming, and background data flash rewriting (1M write cycles).

It integrates dedicated peripherals for LCD-centric systems: programmable voltage boosting, capacitor-split, or resistor-division bias generation; up to 51 segment outputs across 4 or 8 commons; and integrated VL1–VL4 LCD power rails. The timer array unit provides 8× 16-bit channels with PWM, remote control output (REMOOUT), and real-time clock 2 with calendar function and 1 Hz correction output (RTC1HZ).

Key Specifications

Pinout & Package

Package: 80-pin plastic LQFP (14 × 14 mm, 0.65 mm pitch), RoHS-compliant, tray packaging (#30).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10WMEAFA#30, the R5F10WMGAFA#30 offers 167% more flash and full 51-segment LCD support for richer UIs; versus R5F10WMGAFB#30, it shares identical silicon but uses a larger LQFP package enabling easier prototyping and hand-soldering.

Availability

R5F10WMGAFA#30 is available at Aetrix Electronics and suitable for smart metering, industrial HMI, and portable medical device applications requiring stable component supply, long-term lifecycle assurance, and full Renesas RL78 ecosystem compatibility.

Supply support for R5F10WMGAFA#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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.

The RL78/L13 product line targets ultra-low-power LCD-based applications, combining true low-power operation, integrated display drivers, and robust peripheral sets for cost-sensitive, battery-operated human interface devices.

FAQ

What is the maximum operating frequency and corresponding power consumption of the R5F10WMGAFA#30?

The R5F10WMGAFA#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, it draws just 0.61 μA with RTC + LVD active - critical for battery longevity in always-on LCD applications.

Does the R5F10WMGAFA#30 support hardware-based remote control (IR) transmission?

Yes, the R5F10WMGAFA#30 includes dedicated REMOOUT pin and four TKBO (Timer KB20 Output) pins (TKBO00, TKBO01-0/1/2) that generate modulated carrier signals for infrared remote control. These operate independently of CPU load, enabling precise 38 kHz carrier generation and pulse-width encoding without software timing loops.

How many LCD segments and commons does the R5F10WMGAFA#30 support, and how is bias configured?

The R5F10WMGAFA#30 supports up to 51 segment outputs and 4 or 8 common outputs. Bias voltage generation is fully configurable: internal charge-pump voltage boosting, capacitor-split method, or external resistor-divider network - selected via register settings to match panel requirements without external components.

What are the key differences between the R5F10WMGAFA#30 and R5F10WMGAFB#30?

The R5F10WMGAFA#30 and R5F10WMGAFB#30 share identical silicon, flash (128 KB), RAM (8 KB), peripherals, and electrical specs. Their sole difference is package: FA denotes 80-pin LQFP (14×14 mm, 0.65 mm pitch), while FB denotes 80-pin LFQFP (12×12 mm, 0.5 mm pitch). PCB layout and assembly process differ, but firmware and schematic design are interchangeable.

Can the R5F10WMGAFA#30 perform simultaneous ADC conversion and data flash rewriting?

Yes, the R5F10WMGAFA#30 supports background operation (BGO) for data flash. While rewriting 4 KB data flash memory (up to 1 million cycles), the CPU can execute instructions from code flash - enabling concurrent analog acquisition (via 12-channel ADC), LCD refresh, and communication handling without interruption or latency penalties.