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Renesas R5F111MEGFB#30
- Part No.:
- R5F111MEGFB#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F111MEGFB#30.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:709
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Product details
Overview
R5F111MEGFB#30 from Renesas is an 80-pin RL78/L1C 16-bit microcontroller without USB, designed for ultra-low-power LCD-based applications. It features 64 KB Flash, 8 KB Data Flash, 8 KB RAM, a 12-bit A/D converter (2.4–3.6 V), integrated LCD controller/driver (44 segment × 4 common), and operates from 1.6 V to 3.6 V across –40°C to +105°C industrial temperature range.
For engineers reviewing the R5F111MEGFB#30 datasheet, R5F111MEGFB#30 pinout, R5F111MEGFB#30 application, or R5F111MEGFB#30 equivalent, key selection considerations include its non-USB RL78/L1C variant, LFQFP-80 package with REGC capacitor requirement, RTC2 + LVD standby current of 0.68 μA, and LCD segment drive capability up to 44 segments with internal voltage boosting.
Technical Context
The R5F111MEGFB#30 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.04167 μs min @ 24 MHz to 30.5 μs @ 32.768 kHz). It supports multiply/divide and MAC instructions, 1 Mbyte address space, and four register banks.
Its peripheral set includes 11× 16-bit timers, real-time clock 2 (RTC2) with calendar and alarm, 5-channel I²C/simplified I²C, 4-channel UART/LIN, 4-channel CSI/SPI, 2-channel comparator, and DTC/ELC for efficient event-driven data movement - all optimized for low-power sensor and display control in battery-operated devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 33 DMIPS @ 24 MHz |
| Memory | 64 KB code flash (1 KB blocks), 8 KB data flash (1M rewrite cycles), 8 KB RAM |
| Power | 1.6–3.6 V operation; 0.68 μA RTC2+LVD standby; HALT/STOP/SNOOZE low-power modes |
| LCD Driver | Integrated controller supporting 44 segment × 4 common outputs with internal boost/capacitor-split methods |
| A/D Converter | 12-bit resolution (VDD = 2.4–3.6 V), 9 analog inputs, internal 1.45 V reference and temperature sensor |
| Package & Temp | 80-pin LFQFP (12 × 12 mm, 0.5 mm pitch); industrial grade (–40°C to +105°C) |
| Peripherals | 5× I²C, 4× UART/LIN, 4× CSI, 2× D/A (8-bit), 2× comparator, RTC2, 11× 16-bit timer, ELC/DTC |
Pinout & Package
80-pin plastic LFQFP (12 × 12 mm, 0.5 mm pitch), RoHS-compliant. Requires 0.47–1 μF capacitor between REGC and VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REGC | Voltage regulator decoupling | Must connect to VSS via 0.47–1 μF capacitor for stable internal LDO operation |
| P00–P07 | Port 0 general-purpose I/O | Configurable as TTL input, N-ch open drain (6 V tolerant), or with pull-up; support key interrupt |
| COM0–COM3 | LCD common outputs | Drive up to 4 LCD backplane signals; compatible with internal voltage boosting |
| SEG0–SEG55 | LCD segment outputs | Up to 44 active segments supported (e.g., SEG0–SEG6, SEG12–SEG25, SEG27–SEG42, SEG48–SEG55) |
| ANI0–ANI21 | Analog inputs | 9 dedicated channels (ANI0–ANI2, ANI16–ANI21); AVREFP/AVREFM enable ratiometric measurement |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to POR/LVD circuitry |
Key Features
| Feature | Design Value |
|---|---|
| True Low Power Platform | 0.68 μA RTC2 + LVD current enables multi-year battery life in metering and portable displays |
| Self-programming Flash | Boot swap and flash shield window functions allow secure firmware updates without external programmer |
| Background Data Flash Rewrite | BGO enables concurrent program execution and 8 KB data flash rewrites at VDD = 1.8–3.6 V |
| Flexible LCD Drive | Switchable internal boost, capacitor-split, or external resistor-divider methods simplify display interface design |
| Event Link Controller (ELC) | Links 30+ peripheral events (e.g., timer overflow → ADC start) without CPU intervention, reducing latency and power |
Applications
| Smart Utility Meter Display | Industrial Panel Meter |
|---|---|
Use Scenario: Battery-powered electricity/water/gas meter with segmented LCD showing consumption, tariff, and status. IC Role / Device Role / Timing Role: Primary MCU managing LCD refresh, RTC-based billing intervals, low-power wake-up on pulse input, and secure data logging. Use Value: 0.68 μA RTC2+LVD mode extends battery life beyond 10 years; integrated LCD driver eliminates external bias IC. |
Use Scenario: DIN-rail mounted panel meter displaying voltage, current, and harmonics with local button navigation. IC Role / Device Role / Timing Role: Real-time sensor acquisition host with 12-bit A/D, LIN bus communication, and segmented LCD UI rendering. Use Value: 9-channel A/D with internal 1.45 V reference enables accurate ratiometric measurements; ELC synchronizes sampling and display update. |
| Portable Medical Device UI | Home Appliance Control Panel |
Use Scenario: Handheld blood glucose monitor or thermometer with LCD readout, button input, and buzzer feedback. IC Role / Device Role / Timing Role: System controller handling analog sensor interface, key scan, buzzer output (PCLBUZ0/1), and segmented LCD drive. Use Value: Integrated 2-channel 8-bit D/A provides precise buzzer tone generation; on-chip key interrupt reduces polling overhead. |
Use Scenario: Microwave oven or washing machine control panel with time-of-day display, cycle progress, and keypad input. IC Role / Device Role / Timing Role: Main UI controller managing RTC2 calendar, REMOOUT infrared transmission, and 44-segment LCD for multi-field display. Use Value: RTC2 alarm and correction functions maintain accurate timekeeping; TKBOx timers support IR carrier generation without CPU load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F111MGGB#30 | 128 KB Flash, 10 KB RAM, same 80-pin LFQFP package and peripheral set | Supports larger firmware (e.g., enhanced UI logic or communication stacks) without layout change | Select when future firmware growth or added feature sets require more code space |
| R5F111NEGLA#U0 | 85-pin VFLGA (7 × 7 mm), same 64 KB Flash but adds ANI5/ANI6 and P82/P83 I/O | Enables higher I/O density and smaller PCB footprint; no USB functionality retained | Choose for space-constrained designs needing extra analog inputs or compact packaging |
Compared with R5F111MEGFB#30, R5F111MGGB#30 offers scalable memory headroom within identical mechanical and thermal constraints, while R5F111NEGLA#U0 trades pin count for board area reduction and two additional analog inputs - both retain full RL78/L1C peripheral compatibility and industrial temperature rating.
Availability
R5F111MEGFB#30 is available at Aetrix Electronics and suitable for smart utility meters, industrial panel meters, portable medical devices, and home appliance control panels requiring stable component supply and long-term industrial-grade availability.
Supply support for R5F111MEGFB#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/L1C product line targets ultra-low-power LCD-based applications such as energy meters, medical handhelds, and appliance interfaces - emphasizing sub-μA standby, integrated display drivers, and robust industrial qualification.
FAQ
What is the maximum LCD segment count supported by R5F111MEGFB#30?
R5F111MEGFB#30 supports up to 44 active segment outputs (e.g., SEG0–SEG6, SEG12–SEG25, SEG27–SEG42, SEG48–SEG55) with 4 common outputs (COM0–COM3), enabling alphanumeric and custom symbol displays without external segment drivers.
Does R5F111MEGFB#30 include USB functionality?
No, R5F111MEGFB#30 is explicitly a non-USB variant of the RL78/L1C family. The "111" prefix in the part number denotes absence of USB; USB-capable versions use "110" (e.g., R5F110MEGFB#30). This simplifies design where USB is unnecessary and reduces BOM cost.
What are the required external components for R5F111MEGFB#30 power regulation?
R5F111MEGFB#30 requires a 0.47–1 μF capacitor between the REGC pin and VSS to stabilize its internal voltage regulator. No external crystal is mandatory - it supports high-accuracy on-chip oscillators (±1.0% @ 24 MHz) - though XT1/XT2 pins allow optional 32.768 kHz crystal for RTC precision.
Can R5F111MEGFB#30 operate reliably at 3.6 V and +105°C?
Yes, R5F111MEGFB#30 is rated for industrial temperature range (–40°C to +105°C) and full 1.6–3.6 V operation. All specifications - including 33 DMIPS performance, 12-bit A/D accuracy, and LCD driver output - are guaranteed across this range per Renesas datasheet Rev.2.40.
How does the Data Flash memory in R5F111MEGFB#30 support field firmware updates?
R5F111MEGFB#30 includes 8 KB of Data Flash with background operation (BGO), allowing program execution from Code Flash while rewriting Data Flash. Combined with boot swap and flash shield window functions, it enables secure, fail-safe over-the-air or service-port firmware updates without halting system operation.
R5F111MEGFB#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RL78/L1C
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 5.5V
- Data Converters:
- A/D 11x8/12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F111MEGFB#30 FAQ
1.How can I place an order for R5F111MEGFB#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F111MEGFB#30 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 R5F111MEGFB#30 reliable?
The price and inventory of R5F111MEGFB#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F111MEGFB#30 is usually 5 days.
3.What payment methods are accepted for R5F111MEGFB#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F111MEGFB#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F111MEGFB#30?
R5F111MEGFB#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F111MEGFB#30 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 R5F111MEGFB#30?
For technical support, including R5F111MEGFB#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F111MEGFB#30 requirements.
6.How does Aetrix verify that R5F111MEGFB#30 is sourced from the original manufacturer or authorized distributors?
All R5F111MEGFB#30 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 R5F111MEGFB#30 meets industry standards.
7.What is the process for return or replacement of R5F111MEGFB#30?
All R5F111MEGFB#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F111MEGFB#30, 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 R5F111MEGFB#30 part is unused and in its original packaging.
Return procedure for R5F111MEGFB#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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