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Renesas R5F111MFAFB#10
- Part No.:
- R5F111MFAFB#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F111MFAFB#10.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:952
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Product details
Overview
R5F111MFAFB#10 from Renesas is an 80-pin RL78/L1C 16-bit microcontroller without USB, featuring 96 KB flash, 8 KB data flash, 8 KB RAM, integrated LCD controller/driver (44 segment × 4 common), 12-bit A/D converter (13-channel, 2.4–3.6 V range), and ultra-low power operation down to 112.5 μA/MHz - designed for battery-powered LCD display applications in consumer electronics.
For engineers reviewing the R5F111MFAFB#10 datasheet, R5F111MFAFB#10 pinout, R5F111MFAFB#10 application, or R5F111MFAFB#10 equivalent, key selection criteria include LCD segment drive capability (44 seg × 4 com), absence of USB interface, 80-pin LFQFP package compatibility, and support for RTC2 + LVD in HALT/STOP/SNOOZE low-power modes.
Technical Context
The R5F111MFAFB#10 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 LCD controller supporting internal voltage boosting, capacitor split, and external resistor division methods.
Peripheral subsystems include 11× 16-bit timers, real-time clock 2 (RTC2) with calendar, 2× comparators, 5× I²C/simplified I²C channels, 4× UART/LIN, 4× CSI/SPI, DTC with chain transfer, and ELC for event-driven peripheral linking - all operating within 1.6–3.6 V supply and -40°C to +85°C ambient range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline and multiply/divide instructions |
| Flash Memory | 96 KB code flash with 1 KB block erase, security lock, and self-programming |
| Data Flash | 8 KB background operation (BGO) capable, 1M rewrite cycles, 1.8–3.6 V programming |
| LCD Controller | Supports 44 segment × 4 common outputs; configurable voltage boost/capacitor split/resistor division |
| A/D Converter | 12-bit resolution at 2.4–3.6 V; 13 analog inputs including internal temp sensor and 1.45 V reference |
| Low-Power Modes | HALT (112.5 μA/MHz), STOP (0.68 μA with RTC2 + LVD), SNOOZE mode for selective peripheral wake-up |
| Operating Voltage | 1.6 V to 3.6 V single supply; supports consumer-grade temperature range (-40°C to +85°C) |
Pinout & Package
Package: 80-pin plastic LFQFP (12 × 12 mm, 0.5 mm pitch), RoHS-compliant, tray-packaged (#10).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | Port 0 bidirectional I/O | Configurable as TTL input, N-ch open drain (6 V tolerant), or with on-chip pull-up; supports key interrupt |
| P10–P12 | Port 1 bidirectional I/O | Includes PCLBUZ0 buzzer output, SCK20/SCL20/I²C20, SEG40/SEG41/SEG42 LCD segments |
| P20–P27 | Port 2 bidirectional I/O | Provides ANI20/ANI21 analog inputs, TI04/TO04 timer I/O, SEG32–SEG39 LCD segments |
| P30–P35 | Port 3 bidirectional I/O | Supports REMOOUT, RTC1HZ, SCK30/SCL30/I²C30, SI30/SDA30, SO30, SEG20–SEG25 |
| COM0–COM3 | LCD common outputs | Drive up to 4 LCD commons; used with SEG0–SEG55 for multiplexed display driving |
| SEG0–SEG55 | LCD segment outputs | 44 active segment outputs (SEG0–SEG6, SEG12–SEG25, SEG27–SEG42, SEG48–SEG55) per configuration |
| REGC | Voltage regulator decoupling | Must connect to VSS via 0.47–1 μF capacitor for stable internal LDO operation |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to POR and LVD circuits |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT mode | 112.5 μA/MHz enables extended battery life in portable LCD devices |
| Integrated LCD controller | Eliminates external driver IC; supports 44-segment × 4-common displays with flexible biasing |
| Background data flash rewrite | Enables firmware updates or parameter storage without halting program execution |
| Real-time clock 2 (RTC2) | Full calendar (99-year range), alarm, and clock correction - operates in STOP mode at 0.68 μA |
| Event Link Controller (ELC) | Direct hardware linking of 30+ peripheral events avoids CPU overhead and interrupt latency |
Applications
| Smart Meter Display Unit | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered utility meter with segmented LCD showing kWh, voltage, current, and tariff information. IC Role / Device Role / Timing Role: Primary MCU managing LCD refresh, sensor data acquisition (A/D), RTC2 timestamping, and low-power wake-up via REMOOUT or INTPx. Use Value: 0.68 μA STOP mode with RTC2 preserves battery for >10 years; integrated LCD driver reduces BOM count by one IC. | Use Scenario: Handheld pulse oximeter displaying SpO₂, heart rate, and waveform on monochrome LCD. IC Role / Device Role / Timing Role: Central controller handling analog front-end (ANI0–ANI2), buzzer feedback (PCLBUZ0), LCD update timing, and LIN bus communication. Use Value: 12-bit A/D with internal 1.45 V reference ensures accurate analog measurement; SNOOZE mode allows ADC-triggered wake-up without CPU polling. |
| Home Appliance Control Panel | Industrial HMI Keypad |
Use Scenario: Microwave oven or washing machine control panel with 4-digit LCD, touch keys, and buzzer feedback. IC Role / Device Role / Timing Role: Manages KR0–KR7 key scan matrix, SEG/COM LCD drive, PCLBUZ0 tone generation, and INTPx-based button interrupts. Use Value: On-chip key interrupt function detects key press/release without software polling; 8 KB RAM accommodates UI state machine and display buffers. | Use Scenario: Factory-floor programmable logic controller (PLC) operator interface with segmented LCD and mechanical keypad. IC Role / Device Role / Timing Role: Performs real-time I/O scanning (P0–P7, P10–P12), LCD refresh synchronization, and watchdog supervision (WDT + LVD). Use Value: HALT mode at 112.5 μA/MHz extends runtime during idle periods; 12-bit A/D monitors supply rail (VDD) and internal temperature for diagnostics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F111MGAFB#10 | 128 KB flash, 12 KB RAM, same 80-pin LFQFP package and peripheral set | Higher memory headroom for larger UI codebase or firmware-over-the-air (FOTA) staging area | Select when application requires >96 KB flash for feature expansion or bootloader separation |
| R5F110MFAFB#10 | Identical 96 KB flash, 8 KB RAM, but includes USB 2.0 function controller (full/low-speed) | Enables direct PC connectivity for configuration, calibration, or firmware update via USB HID/CDC | Choose only if USB host/device interface is mandatory; adds UREGC, UDM, UDP, UVBUS pins and layout complexity |
Compared with R5F111MGAFB#10, the R5F111MFAFB#10 trades 32 KB flash and 4 KB RAM for cost-sensitive designs where memory headroom is sufficient; versus R5F110MFAFB#10, it removes USB circuitry to reduce BOM cost, PCB area, and qualification effort for non-USB applications.
Availability
R5F111MFAFB#10 is available at Aetrix Electronics and suitable for smart meter displays, portable medical monitors, home appliance control panels, and industrial HMIs requiring stable component supply across long product lifecycles.
Supply support for R5F111MFAFB#10 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/L1C product line targets ultra-low-power LCD-based applications, integrating high-resolution display control, precision analog peripherals, and energy-efficient processing in compact packages.
FAQ
What is the maximum LCD segment count supported by the R5F111MFAFB#10?
The R5F111MFAFB#10 supports up to 44 segment outputs and 4 common outputs (44 × 4) using internal voltage boosting or capacitor split methods. Segment mapping includes SEG0–SEG6, SEG12–SEG25, SEG27–SEG42, and SEG48–SEG55, with COM0–COM3 assigned as common drivers. This configuration suits standard 4-digit alphanumeric or custom icon-based displays.
Does the R5F111MFAFB#10 include USB functionality?
No, the R5F111MFAFB#10 does not include USB functionality. It belongs to the "products without USB" variant of the RL78/L1C family (indicated by "111" in the part number). USB-capable variants use "110" (e.g., R5F110MFAFB#10) and require additional pins (UREGC, UDM, UDP, UVBUS) and external USB regulation components.
What are the low-power consumption figures for the R5F111MFAFB#10?
The R5F111MFAFB#10 achieves 112.5 μA/MHz in HALT mode, 0.68 μA in STOP mode with RTC2 + LVD active, and supports SNOOZE mode for selective peripheral operation. These values are measured at VDD = 1.8–3.6 V and TA = –40°C to +85°C, enabling multi-year battery life in always-on LCD applications such as utility meters and portable instruments.
Can the R5F111MFAFB#10 perform simultaneous A/D conversion and LCD refresh?
Yes, the R5F111MFAFB#10 can execute A/D conversion and LCD refresh concurrently. Its Data Transfer Controller (DTC) supports background operation, and the Event Link Controller (ELC) allows hardware-triggered ADC start and LCD frame buffer updates without CPU intervention - minimizing active time and maximizing low-power mode residency.
What is the purpose of the REGC pin on the R5F111MFAFB#10?
The REGC pin on the R5F111MFAFB#10 connects to an external 0.47–1 μF capacitor to stabilize the internal voltage regulator. This decoupling is mandatory for reliable operation of the on-chip LDO supplying core and analog circuits. Failure to populate this capacitor may cause erratic behavior, reset instability, or LCD contrast inconsistency in the R5F111MFAFB#10.
R5F111MFAFB#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RL78/L1C
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 55
- Program Memory Size:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 10K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 3.6V
- Data Converters:
- A/D 11x8/12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F111MFAFB#10 FAQ
1.How can I place an order for R5F111MFAFB#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F111MFAFB#10 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for R5F111MFAFB#10 reliable?
The price and inventory of R5F111MFAFB#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F111MFAFB#10 is usually 5 days.
3.What payment methods are accepted for R5F111MFAFB#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F111MFAFB#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F111MFAFB#10?
R5F111MFAFB#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F111MFAFB#10 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for R5F111MFAFB#10?
For technical support, including R5F111MFAFB#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F111MFAFB#10 requirements.
6.How does Aetrix verify that R5F111MFAFB#10 is sourced from the original manufacturer or authorized distributors?
All R5F111MFAFB#10 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that R5F111MFAFB#10 meets industry standards.
7.What is the process for return or replacement of R5F111MFAFB#10?
All R5F111MFAFB#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F111MFAFB#10, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The R5F111MFAFB#10 part is unused and in its original packaging.
Return procedure for R5F111MFAFB#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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