Renesas R5F10WMGGFB#50
- Part No.:
- R5F10WMGGFB#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F10WMGGFB#50.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 80LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:6,000
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Product details
Overview
R5F10WMGGFB#50 from Renesas is an 80-pin RL78/L13 16-bit microcontroller with integrated LCD controller/driver, 128 KB flash, 8 KB RAM, and 4 KB data flash-designed for ultra-low-power LCD-based applications including industrial meters and portable HMI devices. It operates from 1.6 V to 5.5 V, delivers 31 DMIPS at 24 MHz, and achieves as low as 71 μA/MHz active current and 0.61 μA in RTC+LVD STOP mode.
For engineers reviewing the R5F10WMGGFB#50 datasheet, R5F10WMGGFB#50 pinout, R5F10WMGGFB#50 application, or R5F10WMGGFB#50 equivalent, this page provides verified technical context, validated pin functions, real-world LCD timing roles, and confirmed alternative options for industrial-grade embedded designs requiring integrated display driving and sub-100 μA/MHz power efficiency.
Technical Context
The R5F10WMGGFB#50 implements the RL78 CPU core-a CISC architecture with 3-stage pipeline and 1 MB address space-supporting selectable instruction execution times from 0.04167 µs (24 MHz on-chip oscillator) to 30.5 µs (32.768 kHz subsystem clock). It integrates a dedicated 16-bit timer KB20 for high-accuracy PWM output and supports background operation during data flash rewriting via BGO.
Its LCD controller/driver supports up to 51 segment × 8 common outputs using switchable voltage-boosting, capacitor-split, or external resistor-divider methods. The device includes dual comparators with internal/external reference selection, 12-channel 8/10-bit ADC, and three UART channels (one LIN-capable), all operating within the same ultra-low-power envelope.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash / RAM / Data Flash | 128 KB code flash, 8 KB RAM, 4 KB data flash with 1M-cycle rewrite endurance |
| Operating Voltage | 1.6 V to 5.5 V (supports 1.8 V logic interfacing) |
| Power Consumption | 71 μA/MHz active; 0.61 μA in RTC+LVD STOP mode |
| LCD Driver | 51 segment × 8 common outputs; configurable voltage generation method |
| Peripherals | 12-channel ADC, 2 comparators, 3 UART (1 LIN), 2 I²C, 2 CSI, 8× 16-bit TAU timers, 1× KB20 timer, 4-channel DMA |
| Package & Temp | 80-pin LFQFP (12 × 12 mm, 0.5 mm pitch); industrial grade (−40°C to +105°C) |
Pinout & Package
80-pin LFQFP (12 × 12 mm, 0.5 mm pitch) package with exposed pad; REGC requires 0.47–1 μF capacitor to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | Port 0 digital I/O | Configurable as N-ch open-drain (VDD-rated), TTL input, or pull-up; supports buzzer/clock output |
| P10–P17 | Port 1 digital I/O + analog inputs | ANI22–ANI25 analog inputs; key interrupt (INTP5/INTP7) and serial interface (CSI00/IICA0) support |
| P20–P27 | Port 2 analog/digital I/O | ANI0/ANI1 (AVREFP/M), ANI16–ANI21; LCD segment drivers (SEG29–SEG34) |
| P30–P35 | Port 3 digital I/O + RTC/LCD | RTC1HZ output, REMOOUT, SEG20–SEG25, INTP3/INTP4, RxD3/TxD3 (UART3) |
| COM0–COM7 | LCD common outputs | Drive up to 8 LCD commons; support multiplexed display with internal bias generation |
| SEG0–SEG50 | LCD segment outputs | 51 dedicated segment drivers; mapped across ports P0–P7 and P12–P13 |
| X1/X2/XT1/XT2 | Clock system inputs | Main (1–20 MHz crystal) and subsystem (32.768 kHz crystal) oscillator connections |
| REGC | Voltage regulator decoupling | Must connect 0.47–1 μF capacitor to VSS for stable internal LDO operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.61 μA with RTC and LVD active-enables decade-scale battery life in metering applications |
| Integrated LCD driver | 51 × 8 segment/common drive with programmable bias method eliminates external LCD bias IC |
| Data flash BGO | Background operation allows full CPU execution while rewriting 4 KB data flash-no firmware stalls |
| Flexible clock system | High-speed on-chip oscillator (±1.0% accuracy, 1–24 MHz) + crystal options eliminate external clock components |
| Industrial temperature range | Rated for −40°C to +105°C operation-qualified for factory automation and smart grid equipment |
| Hardware security | Flash block erase/write prohibition and boot swap function prevent unauthorized firmware modification |
Applications
| Smart Energy Meter | Industrial HMI Panel |
|---|---|
Use Scenario: Battery-powered electricity/water/gas meter with segmented LCD display and tamper detection. IC Role / Device Role / Timing Role: Primary MCU managing metrology ADC sampling, LCD refresh at 60–120 Hz, RTC calendar, and secure firmware updates. Use Value: Integrated LCD driver and 0.61 μA STOP mode enable >10-year battery life without external display controllers. |
Use Scenario: Local operator interface for PLC-controlled machinery with button feedback and status indicators. IC Role / Device Role / Timing Role: Real-time HMI controller handling key interrupts, segment-driven LCD updates, and UART communication with main controller. Use Value: 12-channel ADC monitors panel voltages/temperatures; 80-pin I/O supports direct connection to 8-key matrix and 51-segment display. |
| Portable Medical Device | Building Automation Sensor Node |
Use Scenario: Handheld blood glucose monitor or pulse oximeter with monochrome LCD and low-power sensor interface. IC Role / Device Role / Timing Role: Sensor signal acquisition (ADC/comparator), LCD rendering, buzzer alerts, and secure data logging to data flash. Use Value: 71 μA/MHz active current and hardware-accelerated BCD correction reduce processing overhead for numeric display formatting. |
Use Scenario: Wireless HVAC sensor node displaying temperature/humidity on LCD and reporting via UART to gateway. IC Role / Device Role / Timing Role: Low-duty-cycle controller waking periodically to read sensors, update LCD, and transmit via UART/LIN bus. Use Value: SNOOZE mode enables fast wake-from-sleep response (<1 µs) while maintaining <1 µA average current over 10-second cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10WMEGFB#50 | 48 KB flash, 2 KB RAM, same 80-pin LFQFP package and peripheral set | Lower memory capacity suits simpler LCD interfaces with minimal firmware footprint | Select when application firmware fits in ≤48 KB and no data logging beyond 4 KB is required |
| R5F10WLGGFB#50 | 64-pin LFQFP (10 × 10 mm), identical 128 KB flash/8 KB RAM but 49 I/O pins vs. 65 | Fits space-constrained PCBs where 80-pin layout is impractical but full memory/peripheral feature set is needed | Choose when board area is critical and LCD segment count ≤36 suffices for display requirements |
Compared with R5F10WMGGFB#50, R5F10WMEGFB#50 reduces memory and cost for entry-level LCD applications, while R5F10WLGGFB#50 maintains full feature parity in a smaller 64-pin footprint-enabling design reuse across product tiers without architectural changes.
Availability
R5F10WMGGFB#50 is available at Aetrix Electronics and suitable for industrial HMI panels, smart utility meters, and portable medical devices requiring stable component supply, long-term lifecycle support, and guaranteed industrial-temperature performance.
Supply support for R5F10WMGGFB#50 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/L13 product line targets ultra-low-power LCD-based applications-delivering integrated display control, robust peripherals, and sub-100 μA/MHz efficiency for battery- and energy-harvesting systems.
FAQ
What is the maximum LCD segment count supported by the R5F10WMGGFB#50?
The R5F10WMGGFB#50 supports up to 51 segment outputs and 8 common outputs, enabling multiplexed LCD displays with up to 408 (51 × 8) distinct segments. This configuration is achieved using the internal voltage-boosting method and is validated for operation across the full −40°C to +105°C industrial temperature range.
Does the R5F10WMGGFB#50 support LIN bus communication?
Yes, the R5F10WMGGFB#50 supports LIN bus communication through UART2, which is explicitly designated as LIN-capable in the RL78/L13 datasheet. It meets ISO 17987-4 physical layer requirements when paired with an external LIN transceiver and supports standard LIN 2.x frame formats and scheduling.
What is the minimum supply voltage for R5F10WMGGFB#50 operation at 105°C?
At TA = −40°C to +105°C, the R5F10WMGGFB#50 requires a minimum supply voltage of 2.4 V for reliable operation across all clock modes and peripheral functions. Below 2.4 V, only limited functionality is guaranteed per Renesas' industrial-grade specification.
Can the R5F10WMGGFB#50 perform ADC conversions during STOP mode?
No-the R5F10WMGGFB#50 cannot perform ADC conversions in STOP mode. However, it supports HALT mode with ADC operation enabled, achieving ~1.2 μA typical current while retaining ADC, comparator, and RTC functionality-providing optimal trade-off between power and sensing capability.
How many UART channels does the R5F10WMGGFB#50 include, and what are their key features?
The R5F10WMGGFB#50 includes three UART channels: UART0 and UART1 support full-duplex asynchronous communication with automatic baud rate detection; UART2 adds LIN-bus protocol support. All channels operate at up to 2 Mbps, include framing error detection, and support both 8- and 9-bit data formats with parity options.
R5F10WMGGFB#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RL78/L13
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 58
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10WMGGFB#50 FAQ
1.How can I place an order for R5F10WMGGFB#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10WMGGFB#50 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 R5F10WMGGFB#50 reliable?
The price and inventory of R5F10WMGGFB#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10WMGGFB#50 is usually 5 days.
3.What payment methods are accepted for R5F10WMGGFB#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10WMGGFB#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10WMGGFB#50?
R5F10WMGGFB#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10WMGGFB#50 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 R5F10WMGGFB#50?
For technical support, including R5F10WMGGFB#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10WMGGFB#50 requirements.
6.How does Aetrix verify that R5F10WMGGFB#50 is sourced from the original manufacturer or authorized distributors?
All R5F10WMGGFB#50 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 R5F10WMGGFB#50 meets industry standards.
7.What is the process for return or replacement of R5F10WMGGFB#50?
All R5F10WMGGFB#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10WMGGFB#50, 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 R5F10WMGGFB#50 part is unused and in its original packaging.
Return procedure for R5F10WMGGFB#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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