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Renesas R5F10WLFAFA#50
- Part No.:
- R5F10WLFAFA#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F10WLFAFA#50.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
R5F10WLFAFA#50 from Renesas is a 64-pin LQFP (12 × 12 mm, 0.65 mm pitch), 64 KB Flash, 4 KB Data Flash, 4 KB RAM RL78/L13 microcontroller with integrated LCD controller/driver (36 segment / 4 common outputs), 12-channel 10-bit ADC, and ultra-low power operation down to 71 μA/MHz. It targets battery-powered LCD display systems such as smart meters, thermostats, and portable medical devices requiring true low-power real-time control.
For engineers reviewing the R5F10WLFAFA#50 datasheet, R5F10WLFAFA#50 pinout, R5F10WLFAFA#50 application, or R5F10WLFAFA#50 equivalent, this page delivers verified technical context, validated pin functions, confirmed LCD timing capabilities, and real-world selection guidance for consumer-grade (-40°C to +85°C) embedded LCD applications.
Technical Context
The R5F10WLFAFA#50 implements the RL78 CPU core - a CISC architecture with 3-stage pipeline and 1 MB address space - executing instructions in as little as 0.04167 µs at 24 MHz using its high-accuracy ±1.0% on-chip oscillator. It supports HALT, STOP, and SNOOZE low-power modes with RTC + LVD active at 0.61 μA.
Its integrated LCD controller supports internal voltage boosting, capacitor split, or external resistor division methods, driving up to 36 segments and 4 commons. The device includes dual comparators, 2 UART channels (one LIN-capable), 1 I²C interface, 2 CSI/SPI channels, and 8-channel 16-bit timer array with PWM and remote control output capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline, 1 MB address space, 31 DMIPS @ 24 MHz |
| Memory | 64 KB code flash (1 KB block size), 4 KB data flash (1M rewrite cycles), 4 KB RAM |
| Power | 1.6 V to 5.5 V operation; 71 μA/MHz active current; 0.61 μA RTC+LVD in STOP mode |
| LCD Driver | Integrated controller supporting 36 segment × 4 common outputs; selectable voltage-boosting method |
| ADC | 10-bit resolution A/D converter with 12 analog inputs, internal 1.45 V reference, and temperature sensor |
| Timers & Comm | 8-channel 16-bit timer array (PWM/remote output), 1× 16-bit KB20 timer, 1× 12-bit interval timer, 1× RTC2, 2× UART (LIN-capable), 1× I²C, 2× CSI |
| Package | LQFP-64, 12 × 12 mm, 0.65 mm pitch, lead-free, RoHS-compliant |
Pinout & Package
LQFP-64 package (12 × 12 mm, 0.65 mm pitch), compliant with JEDEC MS-026, with exposed pad not electrically connected. Pin 1 marked by dot or notch; REGC requires 0.47–1 μF capacitor to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | SO00/TxD0/SEG43 | Serial data output / UART0 transmit / LCD segment driver output |
| P17 | SI00/RxD0/SDA00/SEG42 | Serial data input / UART0 receive / I²C data / LCD segment driver output |
| P52 | INTP1/SEG6/TI00/TO00 | External interrupt input / LCD segment / timer input/output for PWM or capture |
| COM0–COM3 | LCD common outputs | Drive LCD backplane signals; support 4-common multiplexing configuration |
| SEG0–SEG3, SEG6–SEG8, SEG11–SEG23, SEG29, SEG33–SEG50 | LCD segment outputs | 51 total segment pins defined; R5F10WLFAFA#50 uses 36 active segments per datasheet Table 1-1 |
| VDD / VSS | Power supply / Ground | Single 1.6–5.5 V supply; decoupling required at VDD/VSS pairs per layout guidelines |
| RESET | Active-low reset input | Asynchronous reset pin; internal POR/LVD also triggers reset under voltage fault conditions |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power modes | Halt (0.61 μA), Stop (0.61 μA with RTC+LVD), Snooze (retains RAM, wakes on peripheral event) |
| On-chip debug | Fully supported via TOOLRxD/TOOLTxD pins; no external emulator required for flash programming |
| Data flash BGO | Background operation enables concurrent code execution while rewriting 4 KB data flash memory |
| Flexible LCD drive | Configurable voltage generation (boost/cap-split/resistor) eliminates need for external LCD bias IC |
| Multi-protocol serial | Dual UART (one LIN-compliant), I²C, and two CSI interfaces enable mixed-protocol sensor/display subsystems |
Applications
| Smart Energy Meter Display | Programmable Thermostat UI |
|---|---|
|
Use Scenario: Battery-powered residential electricity meter with segmented LCD showing kWh, tariff, and status icons. IC Role / Device Role / Timing Role: Primary MCU managing LCD refresh, real-time energy accumulation, tamper detection, and IR/UART communication. Use Value: Integrated LCD driver reduces BOM count; 0.61 μA STOP mode extends 10-year battery life; RTC2 maintains accurate billing time. |
Use Scenario: HVAC control panel with 4-digit temperature readout, mode indicators, and keypad feedback. IC Role / Device Role / Timing Role: System controller handling key scan, LCD update, sensor reading (temp/humidity), and relay control. Use Value: 12-channel ADC reads multiple sensors directly; key interrupt (KR0–KR7) enables low-power wake-on-keypress; buzzer output drives audible feedback. |
| Portable Medical Monitor | Industrial Panel Meter |
|
Use Scenario: Handheld pulse oximeter or blood glucose reader with monochrome LCD and LED indicators. IC Role / Device Role / Timing Role: Signal acquisition MCU processing analog sensor data, driving LCD, and managing USB/UART diagnostics. Use Value: On-chip comparator monitors battery voltage; temperature sensor validates sensor calibration; 10-bit ADC resolves small physiological signals. |
Use Scenario: DIN-rail mounted process monitor displaying pressure, flow, or level with backlight control and alarm LEDs. IC Role / Device Role / Timing Role: Front-end display controller interfacing with analog input modules and driving 4×20-segment LCD. Use Value: 36-segment LCD support matches standard industrial displays; LIN-capable UART connects to fieldbus gateways; wide 1.6–5.5 V range tolerates unregulated 24 V DC supplies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10WLEAFA#50 | 48 KB Flash, 2 KB RAM, same 64-pin LQFP package and peripheral set | Suitable for cost-sensitive designs with reduced firmware footprint and simpler data logging | Select when application firmware fits within 48 KB and RAM usage stays below 2 KB |
| R5F10WMFAFA#50 | 64 KB Flash, 4 KB RAM, but 80-pin LQFP (14 × 14 mm); adds 3 extra ADC channels and UART3 | Required for designs needing >12 analog inputs or third UART for diagnostics or gateway bridging | Choose only if additional I/O, ADC, or serial channels justify PCB redesign and larger footprint |
Compared with R5F10WLEAFA#50, the R5F10WLFAFA#50 provides 16 KB more flash for feature-rich firmware and enhanced data logging; versus R5F10WMFAFA#50, it retains identical core functionality in a smaller, lower-cost 64-pin package without over-provisioned I/O.
Availability
R5F10WLFAFA#50 is available at Aetrix Electronics and suitable for smart meter displays, programmable thermostats, and portable medical monitors requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for R5F10WLFAFA#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 Corporation is a global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/L13 product line is engineered specifically for ultra-low-power LCD-based human-machine interfaces, integrating display control, sensing, and communication in a single chip for battery- and energy-harvesting applications.
FAQ
What is the maximum operating frequency of the R5F10WLFAFA#50?
The R5F10WLFAFA#50 supports up to 24 MHz operation using its high-accuracy ±1.0% on-chip oscillator (VDD = 1.8–5.5 V, TA = –20 to +85°C). External crystal operation is limited to 20 MHz in HS mode. Its minimum instruction execution time is 0.04167 µs at 24 MHz, delivering 31 DMIPS performance.
Does the R5F10WLFAFA#50 support LIN bus communication?
Yes, the R5F10WLFAFA#50 supports LIN bus communication via UART0, which includes LIN-break-detection and sync-field recognition hardware. This capability is confirmed in the datasheet's "Serial interface" section and applies to all RL78/L13 64-pin variants including R5F10WLFAFA#50.
How many LCD segments and commons does the R5F10WLFAFA#50 drive?
The R5F10WLFAFA#50 drives up to 36 segment outputs and 4 common outputs in standard configuration, as specified in Section 1.1 "Features" and Table 1-1 of the datasheet. When configured for 8-common operation, it supports 32 segments - both configurations are software-selectable.
What is the data flash endurance specification for the R5F10WLFAFA#50?
The R5F10WLFAFA#50 features 4 KB of data flash memory rated for 1,000,000 write/erase cycles (typical) across the full VDD range of 1.8–5.5 V. Background operation (BGO) allows program execution during rewrites, enabling seamless firmware updates and parameter storage.
Is the R5F10WLFAFA#50 qualified for industrial temperature range?
No - the R5F10WLFAFA#50 is specified for consumer applications with operating ambient temperature of –40°C to +85°C (suffix 'A'). For industrial use (–40°C to +105°C), Renesas offers the R5F10WLFGFB#50 variant (same memory, LFQFP-64, suffix 'G').
R5F10WLFAFA#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 42
- Program Memory Size:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 6K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 9x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10WLFAFA#50 FAQ
1.How can I place an order for R5F10WLFAFA#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10WLFAFA#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 R5F10WLFAFA#50 reliable?
The price and inventory of R5F10WLFAFA#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10WLFAFA#50 is usually 5 days.
3.What payment methods are accepted for R5F10WLFAFA#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10WLFAFA#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10WLFAFA#50?
R5F10WLFAFA#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10WLFAFA#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 R5F10WLFAFA#50?
For technical support, including R5F10WLFAFA#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10WLFAFA#50 requirements.
6.How does Aetrix verify that R5F10WLFAFA#50 is sourced from the original manufacturer or authorized distributors?
All R5F10WLFAFA#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 R5F10WLFAFA#50 meets industry standards.
7.What is the process for return or replacement of R5F10WLFAFA#50?
All R5F10WLFAFA#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10WLFAFA#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 R5F10WLFAFA#50 part is unused and in its original packaging.
Return procedure for R5F10WLFAFA#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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