Renesas R5F11MMDAFB#30

Overview

R5F11MMDAFB#30 from Renesas is an ultra-low-power 16-bit RL78/L1A microcontroller with integrated LCD controller/driver (32 segment × 4 common), 12-bit A/D and D/A converters (10-channel ADC, 2-channel DAC), rail-to-rail operational amplifiers (3 channels), internal voltage reference (1.5–2.5 V), and real-time clock 2 (RTC2) - designed for battery-powered LCD-based consumer devices operating from 1.8 V to 3.6 V.

For engineers reviewing the R5F11MMDAFB#30 datasheet, R5F11MMDAFB#30 pinout, R5F11MMDAFB#30 application, or R5F11MMDAFB#30 equivalent, key selection criteria include its 48 KB flash / 5.5 KB RAM configuration, 80-pin LFQFP package with LCD segment/common drive capability, HALT-mode current of 0.68 μA, and support for true low-power operation in portable instrumentation and home appliance displays.

Technical Context

The R5F11MMDAFB#30 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and selectable instruction execution time (0.04167 μs at 24 MHz high-speed on-chip oscillator). It integrates a dedicated LCD controller supporting internal voltage boosting, capacitor split, and external resistor division methods, with programmable segment/com output mapping via peripheral I/O redirection register (PIOR).

Its analog subsystem includes three operational amplifiers (two with analog MUX), one comparator, and independent AVDD/AVSS domains enabling precision signal conditioning. The device supports event-driven operation via Event Link Controller (ELC) with 22 input sources and Data Transfer Controller (DTC) activated by 30 interrupt sources - enabling efficient sensor data acquisition and display refresh without CPU intervention.

Key Specifications

Pinout & Package

Package: 80-pin plastic LFQFP (12 × 12 mm, 0.5 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 R5F11MMEAFB#30 and R5F11MPFAFB#30, the R5F11MMDAFB#30 delivers optimal cost/power balance for compact LCD displays with moderate firmware needs, retaining full analog integration and ultra-low-power HALT mode without over-provisioning flash or pin count.

Availability

R5F11MMDAFB#30 is available at Aetrix Electronics and suitable for smart home thermostats, portable medical devices, digital multimeters, and industrial panel meters requiring stable component supply and long-term lifecycle support.

Supply support for R5F11MMDAFB#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 applications.

The RL78/L1A product line targets ultra-low-power LCD-based consumer electronics, integrating analog peripherals and timing functions to eliminate external components in cost-sensitive, battery-operated displays.

FAQ

What is the maximum operating frequency and power consumption of the R5F11MMDAFB#30?

The R5F11MMDAFB#30 operates up to 24 MHz using its high-speed on-chip oscillator with ±1.0% accuracy across -40°C to +85°C. At 24 MHz, it consumes 70.8 μA per MHz in active mode; in HALT mode with RTC2 and LVD active, it draws only 0.68 μA - enabling multi-year battery life in portable LCD applications. The R5F11MMDAFB#30 achieves this via optimized RL78 core architecture and segmented power gating.

Does the R5F11MMDAFB#30 support external crystal oscillators?

Yes, the R5F11MMDAFB#30 supports external crystals on X1 (1–20 MHz, depending on VDD) for main system clock and XT1 (32.768 kHz) for subsystem clock and RTC2. The X1 oscillator requires external load capacitors and is validated for ceramic or crystal resonators; XT1 enables precise calendar timekeeping and low-power wake-up. The R5F11MMDAFB#30 also includes internal oscillators to eliminate external components where timing tolerance permits.

How many LCD segments and commons does the R5F11MMDAFB#30 drive?

The R5F11MMDAFB#30 drives up to 32 segment outputs and 4 common outputs in standard configuration, expandable to 28 segments × 8 commons via register settings. This supports alphanumeric and icon-based LCDs typical in consumer appliances and portable instruments. The R5F11MMDAFB#30 integrates voltage boosting circuitry, eliminating need for external LCD bias generators - reducing BOM cost and board space.

What analog peripherals are integrated into the R5F11MMDAFB#30?

The R5F11MMDAFB#30 integrates a 10-channel 12-bit A/D converter, two 12-bit D/A converters, three operational amplifiers (including two with analog MUX), one comparator, and an internal voltage reference (selectable 1.5 V / 1.8 V / 2.048 V / 2.5 V). These peripherals share dedicated AVDD/AVSS domains and support simultaneous operation - enabling complete analog signal chains for sensor interfaces and calibration in single-chip designs like the R5F11MMDAFB#30.

Is the R5F11MMDAFB#30 pin-compatible with other RL78/L1A variants?

The R5F11MMDAFB#30 shares the same 80-pin LFQFP package and pinout with R5F11MMEAFB#30 and R5F11MMFAFB#30, making them drop-in replacements for flash capacity upgrades. However, it is not pin-compatible with 100-pin variants (e.g., R5F11MPx series) due to differing pin counts and LCD segment allocation. Always verify peripheral register mapping and clock configuration when migrating between R5F11MMDAFB#30 and higher-flash variants.