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Renesas R5F10WLCAFB#50
- Part No.:
- R5F10WLCAFB#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F10WLCAFB#50.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,500
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Product details
Overview
R5F10WLCAFB#50 from Renesas is a 64-pin RL78/L13 16-bit microcontroller with integrated LCD controller/driver, 32 KB flash, 4 KB data flash, 1.5 KB RAM, and ultra-low power operation down to 71 μA/MHz. It features a 24 MHz RL78 CPU core (31 DMIPS), 12-channel 8/10-bit ADC, dual comparators, RTC2 with calendar, and supports LCD segments up to 36 (32) with 4 (8) commons - optimized for battery-powered LCD display applications in consumer electronics.
For engineers reviewing the R5F10WLCAFB#50 datasheet, R5F10WLCAFB#50 pinout, R5F10WLCAFB#50 application, or R5F10WLCAFB#50 equivalent, key selection considerations include its LFQFP-64 (10 × 10 mm, 0.5 mm pitch) package, -40°C to +85°C temperature grade, integrated LCD drive capability, low-voltage operation (1.6–5.5 V), and support for LIN-bus UART and background data flash rewriting.
Technical Context
The R5F10WLCAFB#50 implements the RL78 CISC CPU core with 3-stage pipeline, 1 MB address space, and configurable instruction timing (0.04167 µs min @ 24 MHz). Its power architecture includes HALT, STOP, and SNOOZE modes, plus on-chip POR and 14-level LVD for robust system reset management.
Peripherals include an 8-channel timer array unit (TAU) with PWM and remote control output, 4-channel DMA, 3 serial interfaces (CSI, UART/LIN, I²C), and a dedicated 16-bit timer KB20 for high-accuracy timing. The LCD controller supports internal voltage boosting, capacitor split, and external resistor division methods for flexible segment biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline, 31 DMIPS @ 24 MHz |
| Flash Memory | 32 KB code flash (1 KB block size); supports self-programming and boot swap |
| Data Flash | 4 KB background rewrite-capable data flash; 1M write cycles (TYP.) |
| RAM | 1.5 KB on-chip RAM; ~1 KB usable when data flash and self-programming enabled |
| Operating Voltage | 1.6 V to 5.5 V - enables direct interface with 1.8 V, 2.5 V, and 3.3 V peripherals |
| Power Consumption | 71 μA/MHz active; 0.61 μA in RTC+LVD STOP mode - extends battery life in portable LCD devices |
| LCD Driver | 36 segment / 4 common outputs (32 seg / 8 com supported); selectable bias method |
| ADC | 8/10-bit resolution A/D converter with 12 analog inputs, internal 1.45 V reference, and temperature sensor |
Pinout & Package
Package: LFQFP-64 (10 × 10 mm, 0.5 mm pitch), RoHS-compliant, consumer-grade (-40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | Port 0 I/O | Configurable digital I/O with TTL input buffer, N-ch open-drain option, and on-chip pull-up; P00/P01 support buzzer/clock output |
| P10–P17 | Port 1 I/O | Analog input capable (ANI22–ANI25); supports key interrupt and serial interface (CSI00, IICA0) |
| P20–P27 | Port 2 I/O | Analog input (ANI0–ANI1, ANI16–ANI21); AVREFP/AVREFM pins for ADC reference |
| P30–P33 | Port 3 I/O | RTC1HZ output, REMOOUT, timer I/O (TI01–TI04, TO01–TO04), and key interrupt (INTP3/INTP4) |
| P40–P45 | Port 4 I/O | Comparator inputs (IVCMP0/IVCMP1), reference voltages (IVREF0/IVREF1), TOOL0 debug interface |
| P52–P57 | Port 5 I/O | External interrupts (INTP1–INTP6), LCD segment outputs (SEG4–SEG11), timer I/O (TI00–TI02, TO00–TO02) |
| P60/P61 | I²C Interface | SCLA0/SDAA0 - dedicated I²C bus interface supporting standard/fast-mode communication |
| P70/P74–P77 | Key Return | KR0/KR4–KR7 - dedicated key scan inputs for touch/keypad interfaces |
| COM0–COM7 | LCD Common Output | 4 active commons (up to 8 configurable); drives LCD backplane in multiplexed display systems |
| SEG0–SEG50 | LCD Segment Output | 36 active segments (up to 51 configurable); supports static, 1/2, 1/3, or 1/4 duty LCD drive |
| VDD/VSS | Power/Ground | Single 1.6–5.5 V supply; REGC requires 0.47–1 μF capacitor to VSS for regulator stability |
| RESET | Reset Input | Active-low asynchronous reset; supports internal POR, LVD, watchdog, and illegal-instruction resets |
Key Features
| Feature | Design Value |
|---|---|
| True Low Power Platform | 71 μA/MHz active current and 0.61 μA RTC+LVD STOP mode enable multi-year battery life in portable displays |
| Integrated LCD Controller/Driver | Hardware-accelerated segment/common drive with programmable bias, eliminating external LCD driver IC and reducing BOM cost |
| Background Data Flash Rewrite | BGO allows full CPU execution from code flash while updating data flash - critical for firmware-over-the-air and parameter logging |
| Flexible Clock System | High-accuracy on-chip oscillator (±1.0% @ 24 MHz) eliminates need for external crystal in cost-sensitive designs |
| Robust Peripheral Set | Dual comparators, 12-channel ADC with temp sensor, LIN-capable UART, and 4-channel DMA simplify sensor-rich HMI subsystems |
| Secure Code Protection | Flash block erase/write prohibition and on-chip debug lock prevent unauthorized firmware access and cloning |
Applications
| Smart Thermostats | Portable Blood Glucose Meters |
|---|---|
Use Scenario: Battery-powered wall-mounted HVAC controller with segmented LCD display, push-button interface, and ambient temperature/humidity sensing. IC Role / Device Role / Timing Role: Main system controller managing LCD refresh, key scan, sensor acquisition, and wireless communication timing via RTC2 and TAU timers. Use Value: Integrated LCD driver reduces component count; 71 μA/MHz active current extends AA battery life beyond 2 years in typical usage. | Use Scenario: Handheld medical device displaying glucose readings on monochrome LCD, powered by coin-cell battery. IC Role / Device Role / Timing Role: Sensor interface MCU handling electrochemical ADC sampling, calibration math, RTC-stamped result storage, and LCD update scheduling. Use Value: On-chip 1.45 V reference and temperature sensor enable accurate, drift-compensated measurements without external components. |
| Industrial Panel Meters | Home Appliance Control Panels |
Use Scenario: DIN-rail mounted meter with 4-digit LCD, rotary encoder input, and RS-485 Modbus interface. IC Role / Device Role / Timing Role: Real-time data acquisition and display controller using UART2 (LIN mode) for protocol translation and TAU for precise pulse-width modulation of backlight. Use Value: LIN-capable UART simplifies integration with legacy industrial networks; 1.6–5.5 V operation ensures compatibility with wide-range industrial supplies. | Use Scenario: Microwave oven or washing machine front panel with segmented LCD, membrane keypad, buzzer feedback, and safety monitoring. IC Role / Device Role / Timing Role: HMI coordinator managing key debounce, buzzer tone generation (PCLBUZ0/1), LCD contrast control, and LVD-triggered fault shutdown. Use Value: Dual comparator inputs and 14-level LVD allow precise brown-out detection and fail-safe response without external supervisors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10WLDAB#50 | 48 KB flash, 2 KB RAM, same 64-pin LFQFP package and peripheral set | Higher code capacity for complex UI logic or added communication stacks (e.g., BLE host) | Select when firmware size exceeds 32 KB or additional RAM is required for buffering/display lists |
| R5F10WMCAF#50 | 80-pin LQFP package, 96 KB flash, 6 KB RAM, 12-channel ADC, 8-key interrupt inputs | Supports larger LCDs (51 segments), more analog sensors, and expanded I/O for multi-function appliances | Choose for designs requiring >36 LCD segments, >12 analog inputs, or additional UART/I²C channels |
Compared with R5F10WLCAFB#50, R5F10WLDAB#50 offers headroom for feature expansion within the same footprint, while R5F10WMCAF#50 provides scalable I/O and memory for higher-complexity HMI systems - both retain identical low-power architecture and LCD driver functionality.
Availability
R5F10WLCAFB#50 is available at Aetrix Electronics and suitable for smart thermostats, portable medical devices, and home appliance control panels requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for R5F10WLCAFB#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 trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications.
The RL78/L13 product line targets ultra-low-power LCD-based human-machine interfaces, emphasizing integrated display control, extended battery life, and simplified system design for consumer and industrial edge devices.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F10WLCAFB#50?
The R5F10WLCAFB#50 operates at up to 24 MHz using its high-accuracy on-chip oscillator, delivering 31 DMIPS of processing performance. Its minimum instruction execution time is 0.04167 µs under this condition. The RL78 CPU core maintains consistent timing across voltage ranges (1.6–5.5 V), making R5F10WLCAFB#50 suitable for variable-supply applications without clock scaling penalties.
Does the R5F10WLCAFB#50 support background data flash rewriting while executing code from main flash?
Yes, the R5F10WLCAFB#50 supports Background Operation (BGO) for data flash. This allows the CPU to execute instructions from code flash memory while simultaneously rewriting the 4 KB data flash - essential for real-time parameter updates, firmware logging, or over-the-air configuration changes without system interruption.
What LCD configurations does the R5F10WLCAFB#50 support, and how many segments can it drive?
The R5F10WLCAFB#50 supports static, 1/2, 1/3, and 1/4 duty LCD drive with up to 36 segment outputs and 4 common outputs (expandable to 32 segments and 8 commons via configuration). Its integrated LCD controller supports internal voltage boosting, capacitor split, and external resistor division bias methods - enabling direct drive of reflective STN and segment LCDs without external charge pumps.
Which communication interfaces are available on the R5F10WLCAFB#50, and does it support LIN bus?
The R5F10WLCAFB#50 integrates three serial interfaces: one CSI (Simplified SPI), one UART supporting LIN-bus protocol, and one I²C interface. The LIN-capable UART channel complies with ISO 17987-4 and supports automatic sync-break detection, checksum calculation, and slave node addressing - making R5F10WLCAFB#50 suitable for automotive body electronics and industrial sub-networks.
What power supply and temperature specifications apply to the R5F10WLCAFB#50?
The R5F10WLCAFB#50 is rated for 1.6 V to 5.5 V operation across a -40°C to +85°C ambient temperature range (consumer grade). It includes an on-chip voltage detector with 14 programmable threshold levels and a power-on-reset circuit triggering at 1.51 V (TYP.), ensuring reliable startup and brown-out protection in battery- and energy-harvesting systems.
R5F10WLCAFB#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:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 1.5K 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:
R5F10WLCAFB#50 FAQ
1.How can I place an order for R5F10WLCAFB#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10WLCAFB#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 R5F10WLCAFB#50 reliable?
The price and inventory of R5F10WLCAFB#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10WLCAFB#50 is usually 5 days.
3.What payment methods are accepted for R5F10WLCAFB#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10WLCAFB#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10WLCAFB#50?
R5F10WLCAFB#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10WLCAFB#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 R5F10WLCAFB#50?
For technical support, including R5F10WLCAFB#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10WLCAFB#50 requirements.
6.How does Aetrix verify that R5F10WLCAFB#50 is sourced from the original manufacturer or authorized distributors?
All R5F10WLCAFB#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 R5F10WLCAFB#50 meets industry standards.
7.What is the process for return or replacement of R5F10WLCAFB#50?
All R5F10WLCAFB#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10WLCAFB#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 R5F10WLCAFB#50 part is unused and in its original packaging.
Return procedure for R5F10WLCAFB#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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