Renesas R5F11MPFAFB#30

Overview

R5F11MPFAFB#30 from Renesas is a 100-pin RL78/L1A 16-bit microcontroller with integrated LCD controller/driver (45 segment/8 common), 12-bit A/D and D/A converters (14/2 channels), three operational amplifiers (two with analog MUX), internal voltage reference (1.5–2.5 V), and real-time clock 2. It operates from 1.8 V to 3.6 V, delivers 33 DMIPS at 24 MHz, and targets ultra-low-power LCD-based consumer instrumentation.

For engineers reviewing the R5F11MPFAFB#30 datasheet, R5F11MPFAFB#30 pinout, R5F11MPFAFB#30 application, or R5F11MPFAFB#30 equivalent, key selection criteria include its 96 KB flash/8 KB data flash memory, HALT mode current of 0.68 μA (RTC2 + LVD enabled), 12-bit resolution analog peripherals, and 100-pin LFQFP package with LCD segment drive capability.

Technical Context

The R5F11MPFAFB#30 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and selectable instruction execution time (0.04167 μs @ 24 MHz to 30.5 μs @ 32.768 kHz). It integrates a dedicated low-speed on-chip oscillator for watchdog operation and supports event-driven peripheral control via the Event Link Controller (ELC) with 22 input sources and 8 trigger outputs.

Its analog subsystem includes a 12-bit A/D converter with 14 input channels (including internal ½ AVDD), a 12-bit D/A converter with two rail-to-rail outputs (0.35 V to AVDD – 0.47 V), and three operational amplifiers - one general-purpose and two rail-to-rail with configurable analog MUX inputs (4 in/out per channel).

Key Specifications

Pinout & Package

R5F11MPFAFB#30 is housed in a 100-pin plastic LFQFP (14 × 14 mm, 0.5 mm pitch) package with exposed thermal pad (Renesas code PLQP0100KB-B). Pin functions are fully configurable via Peripheral I/O Redirection Register (PIOR), supporting multiplexed roles including LCD segment/common outputs, analog inputs/outputs, serial interfaces (CSI/I²C/UART), and timer I/O.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F11MPGAFB#30 and R5F11MPEAFB#30, the R5F11MPFAFB#30 offers balanced flash capacity (96 KB) for mid-complexity LCD applications - avoiding over-provisioning while retaining headroom for field updates and enhanced features.

Availability

R5F11MPFAFB#30 is available at Aetrix Electronics and suitable for medical glucometers, smart thermostats, industrial panel meters, and portable multimeters requiring stable component supply and long-term lifecycle support.

Supply support for R5F11MPFAFB#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, and power solutions for automotive, industrial, and IoT markets.

The RL78/L1A product line is engineered specifically for ultra-low-power LCD-based consumer and industrial instrumentation, integrating analog peripherals, timing, and display control in a single chip.

FAQ

What is the maximum operating frequency and instruction throughput of the R5F11MPFAFB#30?

The R5F11MPFAFB#30 supports a maximum high-speed on-chip oscillator frequency of 24 MHz (±1.0% accuracy), delivering 33 DMIPS performance. Its minimum instruction execution time is 0.04167 μs under 24 MHz operation, and it also supports ultra-low-speed operation down to 32.768 kHz for power-critical tasks.

Does the R5F11MPFAFB#30 support hardware debugging during development?

Yes, the R5F11MPFAFB#30 includes an on-chip debug function compatible with Renesas E2 emulator and CS+ IDE. However, Renesas explicitly cautions against using this function in mass-produced products due to potential flash memory wear-out beyond guaranteed rewrite cycles.

How many LCD segments and commons does the R5F11MPFAFB#30 support, and what drive methods are available?

The R5F11MPFAFB#30 supports up to 45 segment outputs and 8 common outputs. It offers three configurable LCD drive methods: internal voltage boosting, capacitor split, and external resistance division - allowing flexible design for different LCD panel types and voltage requirements.

What analog reference voltage options are available for the A/D and D/A converters in the R5F11MPFAFB#30?

The R5F11MPFAFB#30 provides four selectable internal reference voltage outputs: 1.5 V (typ.), 1.8 V (typ.), 2.048 V (typ.), and 2.5 V (typ.). These can be used directly as the reference for both the 12-bit A/D and D/A converters, eliminating the need for external reference ICs in most applications.

Can the R5F11MPFAFB#30 operate from a single 1.8 V supply, and what low-power modes are supported?

Yes, the R5F11MPFAFB#30 operates across 1.8 V to 3.6 V. It supports multiple low-power modes: HALT mode draws just 0.68 μA with RTC2 and LVD active; STOP mode achieves sub-μA current; and SNOOZE mode allows selective peripheral wake-up without full CPU restart - all optimized for battery-powered LCD instrumentation.