Renesas R5F10WMFGFB#30

Overview

R5F10WMFGFB#30 from Renesas is an 80-pin LFQFP (12 × 12 mm, 0.5 mm pitch) 16-bit RL78/L13 microcontroller with integrated LCD controller/driver, 96 KB flash, 4 KB data flash, 6 KB RAM, and ultra-low-power operation down to 71 μA/MHz. It features a 24 MHz high-accuracy on-chip oscillator (±1.0%), 12-channel 8/10-bit ADC, dual comparators, RTC2 with calendar and alarm, and supports LIN-bus via UART2 - designed for battery-powered LCD-based consumer and industrial instrumentation.

For engineers reviewing the R5F10WMFGFB#30 datasheet, R5F10WMFGFB#30 pinout, R5F10WMFGFB#30 application, or R5F10WMFGFB#30 equivalent, key selection criteria include its 80-pin LFQFP package with 65 I/Os (including 12 analog inputs and 8 key interrupt pins), integrated LCD drive up to 51 segments × 4 commons, real-time clock with 1 Hz output, and support for STOP/HALT/SNOOZE low-power modes in 1.6–5.5 V operation.

Technical Context

The R5F10WMFGFB#30 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, delivering 31 DMIPS at 24 MHz. Its memory subsystem includes 96 KB code flash (1 KB block size), 4 KB background-operable data flash (1M rewrite cycles), and 6 KB on-chip RAM - all accessible within a 1 MB address space.

Peripherals are organized around dedicated units: Timer Array Unit (TAU) with eight 16-bit channels supporting PWM, input capture, and remote control output; Serial Array Unit (SAU) with four configurable channels supporting UART, CSI, and simplified I²C; and an LCD controller supporting internal voltage boosting, capacitor split, or external resistor division methods for segment drive.

Key Specifications

Pinout & Package

Package: 80-pin LFQFP (12 × 12 mm, 0.5 mm pitch), RoHS-compliant, industrial-grade (−40°C to +105°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10WMFGFB#30, R5F10WMEGFB#30 reduces flash and RAM for cost-sensitive volume production, while R5F10WLFGFB#30 trades I/O count and LCD drive capability for smaller package size - both retain identical low-power behavior, RTC2, and LIN support.

Availability

R5F10WMFGFB#30 is available at Aetrix Electronics and suitable for smart energy meters, portable medical devices, and industrial control panels requiring stable component supply, long-term lifecycle assurance, and industrial-temperature grade reliability.

Supply support for R5F10WMFGFB#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 product line targets ultra-low-power LCD-based human-machine interfaces, combining integrated display drivers, precision analog, and robust real-time control in a single chip for consumer and industrial instrumentation.

FAQ

What is the maximum LCD segment count supported by the R5F10WMFGFB#30?

The R5F10WMFGFB#30 supports up to 51 segment outputs and 4 common outputs (or 47 segments with 8 commons), enabling alphanumeric displays with up to 204 distinct segments. This capability is implemented entirely in hardware with configurable bias generation, eliminating need for external LCD drivers in most metering and appliance applications.

Does the R5F10WMFGFB#30 support LIN bus communication?

Yes, the R5F10WMFGFB#30 supports LIN bus communication through UART2, which includes LINSEL functionality for automatic sync field detection and break signal generation. This allows direct connection to LIN transceivers without software bit-banging, meeting LIN 2.2A physical layer timing requirements.

What low-power modes are available on the R5F10WMFGFB#30 and their typical current draw?

The R5F10WMFGFB#30 offers HALT (1.2 μA), STOP (0.61 μA with RTC+LVD active), and SNOOZE modes. In STOP mode, the 32.768 kHz subsystem clock remains active to sustain RTC2 and LVD monitoring while CPU and most peripherals are disabled - ideal for long-duration sleep in battery-powered devices.

Can the R5F10WMFGFB#30 perform ADC conversions while in low-power mode?

No - the 8/10-bit ADC requires the high-speed system clock or on-chip oscillator to operate and is disabled in HALT and STOP modes. However, the R5F10WMFGFB#30 can wake from STOP mode via external interrupt (e.g., key press or timer) and initiate ADC conversion within microseconds, minimizing total active time.

What is the endurance rating of the data flash memory in the R5F10WMFGFB#30?

The data flash memory in the R5F10WMFGFB#30 is rated for 1,000,000 write/erase cycles at VDD = 1.8–5.5 V, with background operation support allowing program execution from code flash during rewrites. This enables reliable parameter storage and field-upgradable calibration data without external EEPROM.