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Renesas R5F10WMEAFA#10
- Part No.:
- R5F10WMEAFA#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F10WMEAFA#10.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:720
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Product details
Overview
R5F10WMEAFA#10 from Renesas is an 80-pin LQFP (14 × 14 mm, 0.65 mm pitch) RL78/L13 16-bit microcontroller with integrated LCD controller/driver, 48 KB flash, 2 KB RAM, and 4 KB data flash. It operates from 1.6 V to 5.5 V, achieves 31 DMIPS at 24 MHz, and delivers ultra-low power consumption down to 71 μA/MHz - optimized for battery-powered LCD-based consumer devices such as smart meters and portable medical displays.
For engineers reviewing the R5F10WMEAFA#10 datasheet, R5F10WMEAFA#10 pinout, R5F10WMEAFA#10 application, or R5F10WMEAFA#10 equivalent, this page provides verified technical context, validated pin functions, real-world LCD interface design values, and confirmed alternative MCUs for cost, power, or feature trade-offs in production-grade embedded designs.
Technical Context
The R5F10WMEAFA#10 implements the RL78 CPU core with CISC architecture and a 3-stage pipeline, supporting instruction execution times from 0.04167 µs (24 MHz high-speed on-chip oscillator) to 30.5 µs (32.768 kHz subsystem clock). Its memory map spans 1 MB address space, with 48 KB code flash organized in 1 KB blocks and 4 KB background-operable data flash rated for 1,000,000 write cycles.
It integrates dual serial interfaces (UART0/UART1/IICA0/IICA1), three UART channels (including LIN support), two CSI modules, and a full-featured 8-channel timer array unit with PWM, remote control output (REMOOUT), and RTC2 with calendar and alarm. The on-chip LCD controller supports up to 51 segment × 8 common outputs using internal voltage boosting or external resistor division.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline, 1 MB address space |
| Flash / Data Flash / RAM | 48 KB / 4 KB / 2 KB - enables firmware updates via self-programming and parameter storage with BGO |
| Operating Voltage | 1.6 V to 5.5 V - supports direct connection to single-cell Li-ion, alkaline, or USB-supplied systems |
| Power Modes | HALT (0.61 μA), STOP (0.61 μA), SNOOZE - extends battery life in intermittent-display applications |
| LCD Driver | 51 segments × 8 commons, switchable voltage-boost/cap-split/resistor-division - drives multiplexed segment LCDs without external bias IC |
| A/D Converter | 12-channel 8/10-bit ADC with internal 1.45 V reference and temperature sensor - enables on-chip system monitoring |
| Serial Interfaces | 3 UART (1 LIN-capable), 2 CSI, 2 I²C - supports simultaneous host communication, sensor bus, and display interface |
Pinout & Package
Package: 80-pin plastic LQFP (14 × 14 mm, 0.65 mm pitch), RoHS-compliant, consumer-grade (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | SO00/TxD0/SEG43 | Primary UART0 transmit or LCD segment driver - configurable for low-power display update or debug output |
| P17 | SI00/RxD0/SDA00/SEG42 | Shared UART0 receive/I²C data input/LCD segment - enables hardware-reduced peripheral sharing in space-constrained layouts |
| P60/P61 | SCLA0/SDAA0 | Dedicated I²C interface pins - provide noise-immune, open-drain timing-critical bus for EEPROM or sensor ICs |
| P30 | REMOOUT/TI03/TO03/SEG20 | Remote control carrier output with timer-driven modulation - eliminates external IR LED driver IC in remote-control handsets |
| COM0–COM7 | LCD Common Outputs | 8 dedicated commons - support 1/4–1/8 duty LCD multiplexing without external segment drivers |
| VDD/VSS | Power/Ground | Single 1.6–5.5 V supply with REGC capacitor requirement - simplifies power design vs. multi-rail MCUs |
Key Features
| Feature | Design Value |
|---|---|
| True Low Power Platform | 71 μA/MHz active current and 0.61 μA RTC+LVD retention - enables >5-year coin-cell operation in static-display devices |
| Integrated LCD Controller/Driver | 51 seg × 8 com with internal boost - removes external LCD bias generator and reduces BOM count by ≥3 components |
| Background Data Flash Operation | BGO allows full CPU execution during 4 KB data flash rewrite - enables seamless logging without UI freeze |
| Multi-Mode Clock System | 48/24/16/12/8/6/4/3/2/1 MHz on-chip oscillator ±1.0% accuracy - eliminates external crystal for cost-sensitive designs |
| Hardware Key Interrupt | 8-key return inputs (KR0–KR7) with debounce - supports direct matrix keypad scanning without polling overhead |
Applications
| Smart Energy Meter Display | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered electricity/water/gas meter with segmented LCD showing consumption, tariff, and status icons. IC Role / Device Role / Timing Role: Primary system MCU managing LCD refresh, pulse counting, real-time billing calculation, and IR/UART communication. Use Value: Integrated LCD driver and 0.61 μA STOP mode enable >10-year battery life; 48 KB flash accommodates regional tariff tables and firmware updates. |
Use Scenario: Handheld blood pressure or glucose monitor with analog sensor front-end and persistent display. IC Role / Device Role / Timing Role: Sensor signal acquisition (12-channel ADC), LCD rendering, buzzer feedback, and low-power sleep/wake scheduling. Use Value: On-chip temperature sensor and 1.45 V reference ensure accurate ADC calibration; REMOOUT pin drives IR telemetry without external circuitry. |
| Home Appliance Control Panel | Industrial HMI Keypad |
Use Scenario: Microwave oven or washing machine control panel with 4-digit LCD, touch keys, and motor control signals. IC Role / Device Role / Timing Role: HMI processor handling key scan, display update, safety watchdog, and appliance state machine. Use Value: 8-key interrupt (KR0–KR7) enables responsive tactile feedback; HALT mode reduces standby power to <1 μA during idle periods. |
Use Scenario: Factory-floor programmable logic controller (PLC) interface with segmented LCD, push-button inputs, and RS-485 communication. IC Role / Device Role / Timing Role: Dedicated HMI controller interfacing with main PLC via UART, managing local display and user input. Use Value: 3 UART channels support simultaneous debug (UART0), fieldbus (UART2), and sensor bus (UART1); 1.6–5.5 V range tolerates industrial rail fluctuations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10WMEAGB#30 | Same die, LFQFP-80 (12 × 12 mm, 0.5 mm pitch), industrial temp (–40°C to +105°C) | Requires rework for tighter PCB pitch; suitable for extended-temperature industrial deployments | Select when operating ambient exceeds +85°C or board space constraints favor smaller footprint |
| R5F10WLDAFA#10 | 64-pin LQFP, 32 KB flash, 1.5 KB RAM, same peripheral set minus UART3 and 3 extra ADC channels | Fewer I/O and memory - fits simpler LCD UIs with no remote control or multi-sensor needs | Choose for cost-optimized designs where 32 KB flash suffices and 80-pin layout is unnecessary |
Compared with R5F10WMEAFA#10, R5F10WMEAGB#30 offers identical functionality with industrial-grade thermal resilience and finer-pitch packaging, while R5F10WLDAFA#10 reduces cost and size at the expense of UART3, REMOOUT, and 3 ADC channels - making it viable only for scaled-down HMI implementations.
Availability
R5F10WMEAFA#10 is available at Aetrix Electronics and suitable for smart energy meters, portable medical monitors, home appliance control panels, and industrial HMI keypads requiring stable component supply across multi-year production cycles.
Supply support for R5F10WMEAFA#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 specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.
The RL78/L13 product line targets ultra-low-power LCD-based human-machine interfaces, combining integrated display driving, robust peripherals, and sub-μA retention modes for battery-critical consumer and industrial applications.
FAQ
What is the maximum LCD segment count supported by the R5F10WMEAFA#10?
The R5F10WMEAFA#10 supports up to 51 segment outputs and 8 common outputs, enabling 1/4- to 1/8-duty multiplexed LCDs. This configuration is confirmed in the RL78/L13 datasheet Section 1.6 and applies specifically to 80-pin variants like the R5F10WMEAFA#10. The actual usable segments depend on common count selection and drive method (internal boost, capacitor split, or external resistor division).
Does the R5F10WMEAFA#10 include hardware support for infrared remote control transmission?
Yes, the R5F10WMEAFA#10 includes a dedicated REMOOUT pin (P30) with built-in carrier generation and modulation logic tied to Timer Array Unit channel 3. This allows direct IR LED drive without external timers or microcontrollers, as documented in Section 1.3.2 and Figure 1-10 of the R01DS0168EJ0232 datasheet.
What are the valid operating voltage ranges and associated temperature grades for the R5F10WMEAFA#10?
The R5F10WMEAFA#10 is rated for 1.6 V to 5.5 V operation over –40°C to +85°C (consumer grade). At voltages below 2.4 V, operation is limited to the lower temperature range; above 2.4 V, full specification holds across the entire –40°C to +85°C range. This is explicitly defined in Section 1.6 and Electrical Specifications Table 2.1 of the datasheet.
Can the R5F10WMEAFA#10 execute code while rewriting its data flash memory?
Yes, the R5F10WMEAFA#10 supports Background Operation (BGO) for data flash, allowing full CPU instruction execution from code flash during 4 KB data flash erase/write sequences. This capability is enabled via the Data Flash Control Register (DFLCTL) and is guaranteed for all 80-pin RL78/L13 variants including the R5F10WMEAFA#10 per Section 1.1 and Chapter 9 of the datasheet.
How many UART channels does the R5F10WMEAFA#10 provide, and which support LIN bus protocol?
The R5F10WMEAFA#10 provides three UART channels: UART0, UART1, and UART2. UART0 supports LIN bus protocol (LINSEL pin function), while UART1 and UART2 operate as standard UARTs. This configuration is fixed for 80-pin packages and is detailed in Sections 1.1, 1.5.2, and Table 1-2 of the R01DS0168EJ0232 datasheet.
R5F10WMEAFA#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RL78/L13
- Packaging:
- Tray
- 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:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10WMEAFA#10 FAQ
1.How can I place an order for R5F10WMEAFA#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10WMEAFA#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 R5F10WMEAFA#10 reliable?
The price and inventory of R5F10WMEAFA#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10WMEAFA#10 is usually 5 days.
3.What payment methods are accepted for R5F10WMEAFA#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10WMEAFA#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10WMEAFA#10?
R5F10WMEAFA#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10WMEAFA#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 R5F10WMEAFA#10?
For technical support, including R5F10WMEAFA#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10WMEAFA#10 requirements.
6.How does Aetrix verify that R5F10WMEAFA#10 is sourced from the original manufacturer or authorized distributors?
All R5F10WMEAFA#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 R5F10WMEAFA#10 meets industry standards.
7.What is the process for return or replacement of R5F10WMEAFA#10?
All R5F10WMEAFA#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10WMEAFA#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 R5F10WMEAFA#10 part is unused and in its original packaging.
Return procedure for R5F10WMEAFA#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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