Renesas R5F10WMCGFB#30

Overview

R5F10WMCGFB#30 from Renesas is an 80-pin LFQFP ultra-low-power 16-bit RL78/L13 MCU with integrated LCD controller/driver, 128 KB flash, 8 KB RAM, and 4 KB data flash - delivering 31 DMIPS at 24 MHz for battery-powered LCD-based metering and HMI applications operating from 1.6 V to 5.5 V.

For engineers reviewing the R5F10WMCGFB#30 datasheet, R5F10WMCGFB#30 pinout, R5F10WMCGFB#30 application, or R5F10WMCGFB#30 equivalent, this page provides verified technical context, real-time clock integration, true low-power modes (71 μA/MHz active, 0.61 μA RTC+LVD), and industrial-grade temperature support (–40°C to +105°C).

Technical Context

The R5F10WMCGFB#30 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting configurable instruction execution times from 0.04167 µs (24 MHz high-speed on-chip oscillator) to 30.5 µs (32.768 kHz subsystem clock). It integrates a dedicated 16-bit timer KB20 for PWM output and a 12-bit interval timer for precise timing control.

Its peripheral set includes three UART channels (one LIN-capable), two CSI interfaces, one I²C interface, dual comparators with selectable internal/external references, and an 8/10-bit A/D converter with 12 analog inputs - all accessible via programmable I/O redirection through the PIOR register.

Key Specifications

Pinout & Package

Package: 80-pin LFQFP (12 × 12 mm, 0.5 mm pitch), RoHS-compliant, industrial-temperature rated (G-grade).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10WMEGFB#30 and R5F10WMAGFB#30, the R5F10WMCGFB#30 uniquely combines maximum flash capacity (128 KB), industrial temperature rating (–40°C to +105°C), and full peripheral complement - making it the only option for feature-rich, field-deployed LCD-based controllers requiring long-term reliability and future firmware scalability.

Availability

R5F10WMCGFB#30 is available at Aetrix Electronics and suitable for smart utility metering, industrial HMI panels, and portable medical devices requiring stable component supply across extended product lifecycles.

Supply support for R5F10WMCGFB#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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/L13 family is engineered for ultra-low-power LCD-based applications - integrating display drivers, precision timing, and robust analog peripherals into a single chip to eliminate external components and reduce system-level power consumption.

FAQ

What is the maximum operating frequency and corresponding current consumption of the R5F10WMCGFB#30?

The R5F10WMCGFB#30 achieves 31 DMIPS at 24 MHz using its high-accuracy ±1.0% on-chip oscillator. At this frequency, typical active current is 71 μA/MHz (≈1.7 mA total), while HALT mode draws 1.2 μA and STOP mode with RTC+LVD enabled consumes just 0.61 μA - verified per Renesas datasheet R01DS0168EJ0232 Rev.2.32.

Does the R5F10WMCGFB#30 support hardware-based LCD bias generation?

Yes, the R5F10WMCGFB#30 supports three LCD bias methods: internal voltage boosting (for higher COM voltage), capacitor split (for medium-resolution displays), and external resistance division (for fine-tuned contrast control). These are selected via LCD control registers and require no external ICs - confirmed in Section 1.6 and Figure 1-15 of the datasheet.

How many UART interfaces does the R5F10WMCGFB#30 provide, and which support LIN protocol?

The R5F10WMCGFB#30 includes three UART channels: UART0, UART1, and UART2. Only UART0 supports LIN-bus physical layer compliance (LINSEL pin control and break-detection logic), enabling direct connection to automotive body-control networks without transceiver translation - as specified in Table 1-2 and Section 1.6 of the datasheet.

Can the R5F10WMCGFB#30 perform simultaneous ADC conversion and flash programming?

Yes, the R5F10WMCGFB#30 supports background operation (BGO) for data flash writes: while rewriting 4 KB of data flash memory, the CPU can execute instructions from code flash. However, ADC conversions must be paused during flash erase/write cycles due to shared bus arbitration - documented in Section 1.1 "Data flash memory" and Chapter 3 of the RL78/L13 User's Manual.

What is the function of the TKBO pins on the R5F10WMCGFB#30, and how are they configured?

The TKBO00, TKBO01-0, TKBO01-1, and TKBO01-2 pins (P74, P77, P76, P75) generate modulated carrier signals for infrared remote control. They are driven by the 16-bit timer KB20 and support NEC and RC-5 protocols. Configuration requires setting KB20 mode, carrier frequency (38 kHz typical), and duty cycle via dedicated registers - detailed in Section 6.10.3 of the RL78/L13 User's Manual.