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Renesas R5F10WLAAFB#50
- Part No.:
- R5F10WLAAFB#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F10WLAAFB#50.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,500
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Product details
Overview
R5F10WLAAFB#50 from Renesas is a 16-bit RL78/L13 microcontroller with integrated LCD controller/driver, 16 KB flash, 4 KB data flash, and 1 KB RAM. It operates from 1.6 V to 5.5 V, delivers 31 DMIPS at 24 MHz, and achieves ultra-low power consumption (71 μA/MHz active, 0.61 μA in RTC+LVD STOP mode). Designed for battery-powered LCD-based consumer devices such as smart meters, thermostats, and portable medical displays.
For engineers reviewing the R5F10WLAAFB#50 datasheet, R5F10WLAAFB#50 pinout, R5F10WLAAFB#50 application, or R5F10WLAAFB#50 equivalent, key selection criteria include its 64-pin LFQFP-0.5 mm package, 36-segment/4-common LCD drive capability, dual comparator support, and hardware UART/LIN, CSI, and I²C interfaces - all within a -40°C to +85°C industrial-grade temperature range.
Technical Context
The R5F10WLAAFB#50 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting configurable instruction execution times from 0.04167 µs (24 MHz on-chip oscillator) to 30.5 µs (32.768 kHz subsystem clock). Its memory map spans 1 MB address space, with on-chip debug, self-programming flash, and background data flash rewriting (BGO).
Power management includes HALT, STOP, and SNOOZE modes, POR/LVD reset circuitry with 14-level voltage detection, and a dedicated low-speed on-chip oscillator for watchdog operation. The peripheral set integrates an 8-channel 16-bit timer array (TAU), real-time clock 2 with calendar and alarm, 9-channel 8/10-bit ADC, and 2-channel comparator with selectable internal/external reference inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline; enables deterministic timing control for real-time LCD refresh and sensor polling. |
| Flash / Data Flash / RAM | 16 KB code flash / 4 KB data flash / 1 KB RAM; supports secure block erase prohibition and BGO for firmware updates without halting operation. |
| Operating Voltage | 1.6 V to 5.5 V; allows direct interface with 1.8 V, 2.5 V, and 3.3 V peripherals without level shifters. |
| Power Consumption | 71 μA/MHz (active), 0.61 μA (RTC + LVD STOP); extends battery life in coin-cell–powered LCD applications beyond 5 years. |
| LCD Driver | 36 segment × 4 common outputs; supports internal voltage boosting, capacitor split, or external resistor division for flexible contrast tuning. |
| ADC & Comparator | 9-channel 8/10-bit ADC (VDD-referenced), 2-channel comparator with internal 1.45 V reference; enables analog sensing and threshold monitoring without external components. |
| Communication Interfaces | 1× UART (LIN-capable), 1× simplified SPI (CSI), 1× simplified I²C; sufficient for sensor hub, display interface, and host MCU communication in compact designs. |
Pinout & Package
64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3. Requires 0.47–1 μF capacitor between REGC and VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07, P10–P17, P20–P27, P30–P33, P40, P42–P45, P52–P54, P57, P60–P61, P70, P74–P77, P121–P127, P137 | Digital I/O / Peripheral Multiplexing | 49 total I/O pins with N-ch open-drain (6 V tolerant), TTL input, and on-chip pull-up; supports key interrupt (KR0–KR7), buzzer output (PCLBUZ0/1), and LCD segment/common drive. |
| COM0–COM7, SEG0–SEG50 | LCD Controller Outputs | 4 common and up to 36 segment outputs (with 8-com configuration); directly drives static or multiplexed LCD glass without external driver IC. |
| ANI0–ANI25, AVREFP/AVREFM, IVCMP0/1, IVREF0/1 | Analog Input & Comparator Interface | 9 dedicated ADC channels (ANI0–ANI25 mapped), dual comparator with selectable internal 1.45 V or external reference for precision threshold detection. |
| X1/X2, XT1/XT2, EXCLK/EXCLKS | System & Subsystem Clock Inputs | Supports crystal (1–20 MHz main, 32.768 kHz sub) or external clock sources; enables accurate RTC and low-jitter timing for communication baud rates. |
| RESET, REGC, VDD, VSS, VL1–VL4 | Power, Reset & LCD Supply | Single-supply operation (1.6–5.5 V); REGC stabilizes internal regulator; VL1–VL4 provide programmable LCD bias voltages for contrast optimization. |
Key Features
| Feature | Design Value |
|---|---|
| True Low Power Platform | 71 μA/MHz active current and 0.61 μA STOP mode enable decade-long battery life in always-on LCD applications. |
| Integrated LCD Controller/Driver | 36-segment × 4-common drive with internal boost, eliminating external charge pump and reducing BOM cost by ≥$0.15. |
| Hardware Peripherals | 8-channel TAU timer, RTC2 with calendar/alarm, 9-channel ADC, 2-channel comparator, and LIN-capable UART reduce firmware overhead and latency. |
| Secure Flash Management | Block erase prohibition, boot swap, and flash shield window prevent unauthorized firmware modification and support field upgrades. |
| Flexible Clock System | High-accuracy ±1.0% on-chip oscillator (1–24 MHz) eliminates need for external crystal in cost-sensitive designs while maintaining UART timing integrity. |
Applications
| Smart Energy Meter Display | Programmable Thermostat UI |
|---|---|
|
Use Scenario: Battery-powered residential electricity meter with segmented LCD showing kWh, tariff, and time-of-use data. IC Role / Device Role / Timing Role: Primary system controller managing LCD refresh, real-time clock, tamper detection via comparator, and IR/UART communication. Use Value: Ultra-low 0.61 μA STOP current extends CR2032 battery life beyond 7 years; integrated LCD driver reduces component count by 3–5 discrete parts. |
Use Scenario: Wall-mounted HVAC thermostat with 4-digit segmented LCD, temperature sensor, and push-button interface. IC Role / Device Role / Timing Role: Central UI processor handling key interrupts (KR0–KR7), ADC-based thermistor reading, buzzer feedback, and display update scheduling. Use Value: On-chip 1.45 V reference and comparator enable precise overtemperature shutdown; 16 KB flash accommodates multi-language UI firmware. |
| Portable Medical Monitor | Industrial Control Panel |
|
Use Scenario: Handheld pulse oximeter or blood glucose meter with monochrome LCD and tactile buttons. IC Role / Device Role / Timing Role: Sensor interface MCU acquiring analog signals (ADC), driving LCD segments, managing button debouncing, and generating audible alerts. Use Value: 9-channel ADC supports simultaneous sensor inputs; SNOOZE mode allows periodic wake-up for measurement without full CPU restart. |
Use Scenario: DIN-rail mounted PLC HMI panel displaying status, alarms, and setpoints via 36-segment LCD under harsh ambient conditions. IC Role / Device Role / Timing Role: Dedicated display controller interfacing with main PLC via UART, managing LCD contrast via VLx pins, and detecting power faults via LVD. Use Value: -40°C to +85°C rating ensures reliability in unconditioned enclosures; 14-level LVD provides configurable brown-out protection for stable operation during line dips. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10WLEAFB#50 | 64 KB flash, 2 KB RAM, same package and peripherals; higher memory for larger UI firmware or data logging. | Suitable when extended feature set (e.g., multiple language strings, calibration tables) exceeds 16 KB flash capacity. | Select R5F10WLEAFB#50 only if firmware size >14 KB or RAM usage >800 bytes; otherwise R5F10WLAAFB#50 minimizes cost and power. |
| R5F10WMAAF#50 | 80-pin LQFP (14×14 mm, 0.65 mm pitch), 16 KB flash, adds 3 extra ADC channels and 2 UARTs. | Required when design needs >9 analog inputs or dual UART for host + sensor communication, and PCB layout permits larger footprint. | Choose R5F10WMAAF#50 only if additional I/O or serial interfaces are mandatory; R5F10WLAAFB#50 offers optimal size/power trade-off for LCD-centric designs. |
Compared with R5F10WLEAFB#50 and R5F10WMAAF#50, the R5F10WLAAFB#50 delivers the smallest footprint, lowest active and standby current, and lowest BOM cost for applications where 16 KB flash, 9 ADC channels, and single UART/LIN suffice - making it the most efficient choice for high-volume, battery-sensitive LCD endpoints.
Availability
R5F10WLAAFB#50 is available at Aetrix Electronics and suitable for smart energy meters, programmable thermostats, and portable medical monitors requiring stable component supply across multi-year production cycles.
Supply support for R5F10WLAAFB#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 human-machine interfaces, emphasizing minimal external components, long battery life, and robust operation in consumer and industrial environments.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F10WLAAFB#50?
The R5F10WLAAFB#50 achieves a maximum operating frequency of 24 MHz using its high-accuracy on-chip oscillator (±1.0%), delivering 31 DMIPS. At this speed, minimum instruction execution time is 0.04167 µs. Performance scales linearly down to 32.768 kHz (30.5 µs/instruction) for ultra-low-power RTC or sleep-mode operations - all within the specified 1.6 V to 5.5 V supply range.
Does the R5F10WLAAFB#50 support hardware LIN bus communication?
Yes, the R5F10WLAAFB#50 supports LIN bus communication via its UART channel, which includes LIN-break detection and synchronization field generation per LIN 2.x specifications. This capability is implemented in hardware without CPU intervention, enabling reliable slave-node operation in automotive body electronics or industrial control networks.
How many LCD segments and commons does the R5F10WLAAFB#50 drive, and what bias methods are supported?
The R5F10WLAAFB#50 drives up to 36 segment outputs and 4 common outputs (or 32 segments/8 commons in alternate configuration). It supports three LCD bias methods: internal voltage boosting, capacitor split, and external resistance division - allowing flexible contrast adjustment and compatibility with diverse LCD glass types without external components.
What are the power supply requirements and low-power modes available on the R5F10WLAAFB#50?
The R5F10WLAAFB#50 operates from a single 1.6 V to 5.5 V supply and features HALT, STOP, and SNOOZE low-power modes. In STOP mode with RTC and LVD active, current consumption is 0.61 μA typical. HALT mode draws 71 μA/MHz during active operation. All modes retain RAM content and allow wake-up via interrupts, timers, or external pins - critical for energy harvesting and battery longevity.
Can the R5F10WLAAFB#50 perform self-programming of its flash memory during runtime?
Yes, the R5F10WLAAFB#50 supports full self-programming of both code and data flash memory, including boot swap functionality and flash shield window protection. Data flash supports background operation (BGO), allowing program execution from flash while rewriting data flash - essential for over-the-air updates and parameter storage in field-deployed devices.
R5F10WLAAFB#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:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 9x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10WLAAFB#50 FAQ
1.How can I place an order for R5F10WLAAFB#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10WLAAFB#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 R5F10WLAAFB#50 reliable?
The price and inventory of R5F10WLAAFB#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10WLAAFB#50 is usually 5 days.
3.What payment methods are accepted for R5F10WLAAFB#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10WLAAFB#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10WLAAFB#50?
R5F10WLAAFB#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10WLAAFB#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 R5F10WLAAFB#50?
For technical support, including R5F10WLAAFB#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10WLAAFB#50 requirements.
6.How does Aetrix verify that R5F10WLAAFB#50 is sourced from the original manufacturer or authorized distributors?
All R5F10WLAAFB#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 R5F10WLAAFB#50 meets industry standards.
7.What is the process for return or replacement of R5F10WLAAFB#50?
All R5F10WLAAFB#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10WLAAFB#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 R5F10WLAAFB#50 part is unused and in its original packaging.
Return procedure for R5F10WLAAFB#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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