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Renesas R5F10WLCAFA#50
- Part No.:
- R5F10WLCAFA#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F10WLCAFA#50.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
R5F10WLCAFA#50 from Renesas is a 64-pin LQFP (12 × 12 mm, 0.65 mm pitch), 16 KB flash, 1 KB RAM, RL78/L13 16-bit MCU with integrated LCD controller/driver (36 segment / 4 common outputs), ultra-low power operation (71 μA/MHz active, 0.61 μA in RTC+LVD STOP mode), and 1.6–5.5 V supply - designed for battery-powered LCD-based consumer instrumentation including digital thermometers, blood pressure monitors, and portable meters.
For engineers reviewing the R5F10WLCAFA#50 datasheet, R5F10WLCAFA#50 pinout, R5F10WLCAFA#50 application, or R5F10WLCAFA#50 equivalent, this page delivers verified technical context, validated pin functions, real-world use cases, and confirmed alternative parts - all grounded in Renesas' official R01DS0168EJ0232 Rev.2.32 specification.
Technical Context
The R5F10WLCAFA#50 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.04167 µs min @ 24 MHz HS oscillator). It integrates a dedicated LCD controller supporting internal voltage boosting, capacitor split, or external resistor division methods - enabling direct drive of segmented LCDs without external bias circuitry.
Its peripheral set includes 8-channel 16-bit Timer Array Unit (TAU) with PWM and remote control output, dual comparators with selectable reference sources, 9-channel 8/10-bit ADC, 3 UART channels (1 LIN-capable), 1 I²C, 2 CSI interfaces, and 4-channel DMA - all operating within a true low-power platform that supports HALT, STOP, and SNOOZE modes.
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 | 16 KB code flash + 4 KB data flash + 1 KB on-chip RAM (expandable to ~7 KB with self-programming) |
| Power Efficiency | 71 μA/MHz active current; 0.61 μA RTC+LVD STOP mode enables multi-year battery life |
| LCD Driver | 36 segment / 4 common outputs; supports internal boost, capacitor split, or external resistor division |
| ADC & Comparator | 9-channel 8/10-bit ADC (VDD-referenced); dual independent comparators with internal/external reference selection |
| Timers & Clocks | 8-channel 16-bit TAU + 1-channel 16-bit KB20 timer + 12-bit interval timer + RTC2 with calendar/alarm |
| Communication | 3 UART (1 LIN-compliant), 1 I²C, 2 CSI (SPI-like), 1 serial interface IICA - all with flexible pin remapping |
Pinout & Package
Package: 64-pin plastic LQFP (12 × 12 mm, 0.65 mm pitch), RoHS-compliant, consumer-grade (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | SO00/TxD0/SEG43 | Serial data output / UART0 transmit / LCD segment driver - shared function routed via PIOR register |
| P17 | SI00/RxD0/SDA00/SEG42 | Serial data input / UART0 receive / I²C data / LCD segment - enables mixed-interface LCD host design |
| P52 | INTP1/SEG6/TI00/TO00 | External interrupt / LCD segment / timer input/output - supports key wake-up and PWM-driven LCD contrast control |
| COM0–COM3 | LCD common outputs | Drive up to 4 LCD backplanes; enable 36-segment display with 4×9 multiplexing |
| SEG0–SEG50 | LCD segment outputs | 36 active segment pins (e.g., SEG4–SEG8, SEG11–SEG23, SEG29, SEG33–SEG50) mapped per 64-pin variant |
| REGC | Voltage regulator capacitor terminal | Must connect 0.47–1 μF capacitor to VSS for stable internal LDO operation |
Key Features
| Feature | Design Value |
|---|---|
| True Low Power Platform | 71 μA/MHz active current and 0.61 μA STOP mode with RTC+LVD active - eliminates need for external RTC or supervisor IC |
| Integrated LCD Controller/Driver | Configurable bias generation (internal boost/capacitor split/resistor division) drives 36×4 segmented LCDs directly - no external bias generator required |
| Flexible Peripheral Mapping | Peripheral I/O Redirection Register (PIOR) allows dynamic assignment of UART, CSI, I²C, and timer signals to multiple pins - simplifies PCB layout and reuse |
| On-Chip Debug & Self-Programming | Full on-chip debug support and boot-swap enabled self-programming allow field firmware updates without external programmer |
| Robust Analog Subsystem | Dual independent comparators with selectable internal/external references + 9-channel ADC with internal 1.45 V reference - enables analog sensor monitoring with minimal BOM |
Applications
| Digital Thermometer | Blood Pressure Monitor |
|---|---|
Use Scenario: Portable, battery-operated medical device measuring temperature via NTC thermistor and displaying result on 4-digit segmented LCD. IC Role / Device Role / Timing Role: Main system controller executing measurement algorithm, driving LCD segments/commmons, managing ADC sampling, and handling button interrupts. Use Value: Ultra-low STOP-mode current (0.61 μA) extends CR2032 battery life beyond 3 years; integrated LCD driver eliminates 4–6 external bias components. |
Use Scenario: Handheld sphygmomanometer capturing cuff pressure via analog sensor, computing systolic/diastolic values, and showing results on multi-segment LCD. IC Role / Device Role / Timing Role: Signal acquisition controller using 9-channel ADC for sensor inputs, real-time clock for time-stamped readings, and PWM-controlled buzzer for audible alerts. Use Value: Dual comparator supports fast over-pressure detection; 16-bit TAU provides precise PWM for buzzer tone control without CPU overhead. |
| Programmable Multimeter | Smart Home Thermostat Display |
Use Scenario: Compact handheld DMM with auto-ranging, continuity beeper, and 3½-digit LCD readout powered by two AAA batteries. IC Role / Device Role / Timing Role: System-on-chip managing range switching logic, ADC conversion sequencing, LCD refresh timing, and buzzer output via PCLBUZ0/1. Use Value: 1.6–5.5 V wide supply range accommodates declining battery voltage; on-chip voltage detector (14-level LVD) triggers low-battery warning before cutoff. |
Use Scenario: Wall-mounted HVAC display unit with ambient temperature sensing, schedule UI, and 4-line segmented LCD - powered from 3.3 V rail. IC Role / Device Role / Timing Role: HMI processor handling touch-key interrupts (KR0–KR7), updating LCD content every 200 ms, and communicating with main controller via UART. Use Value: Key interrupt function detects button press in STOP mode with sub-μA wake-up; built-in RTC2 maintains accurate time during power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10WLEAFA#50 | 64-pin LQFP, 64 KB flash, 2 KB RAM, same peripherals and package | Higher flash/RAM supports larger firmware (e.g., BLE stack, advanced UI logic) | Select when firmware exceeds 16 KB or requires >1 KB RAM for buffers/calculations |
| R5F10WMCAFA#50 | 80-pin LQFP, 16 KB flash, 1 KB RAM, adds 3 extra ADC channels and 1 UART | Enables additional analog sensors or dual-serial communication (e.g., UART-to-main-controller + UART-to-display) | Choose when more I/O, ADC inputs, or serial interfaces are needed - requires PCB redesign |
Compared with R5F10WLCAFA#50, R5F10WLEAFA#50 offers 4× flash headroom for feature-rich firmware while maintaining identical pinout and power profile; R5F10WMCAFA#50 trades package compatibility for expanded analog and serial I/O - making it suitable only when board layout can accommodate 80 pins.
Availability
R5F10WLCAFA#50 is available at Aetrix Electronics and suitable for digital thermometers, blood pressure monitors, and programmable multimeters requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for R5F10WLCAFA#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 targets ultra-low-power, LCD-based consumer instrumentation - integrating LCD drivers, precision analog, and robust peripherals into a single chip to minimize BOM and extend battery life.
FAQ
What is the maximum operating frequency and minimum instruction cycle time for the R5F10WLCAFA#50?
The R5F10WLCAFA#50 supports up to 24 MHz operation using its high-speed on-chip oscillator, achieving a minimum instruction execution time of 0.04167 µs. When using the external crystal oscillator (X1), max frequency is 20 MHz (0.05 µs min cycle). The subsystem clock runs at 32.768 kHz for RTC, yielding a 30.5 µs instruction time in ultra-low-power mode. All timing values are specified in Renesas' R01DS0168EJ0232 Rev.2.32 datasheet.
Does the R5F10WLCAFA#50 support hardware debugging and in-system programming?
Yes, the R5F10WLCAFA#50 includes full on-chip debug functionality accessible via TOOLRxD/TOOLTxD pins, supporting breakpoints, watchpoints, and memory inspection. It also supports self-programming with boot-swap capability and flash shield window protection - enabling secure firmware updates in the field without external programmers. These features are documented in Chapter 3 of the RL78/L13 User's Manual.
How many LCD segments and commons does the R5F10WLCAFA#50 drive, and what bias methods are supported?
The R5F10WLCAFA#50 drives up to 36 segment outputs and 4 common outputs (or 32 segments / 8 commons when configured for higher multiplex ratio). It supports three LCD bias generation methods: internal voltage boosting, capacitor split, and external resistance division - selectable via control registers to match display requirements without external components.
What are the power supply requirements and low-power modes available on the R5F10WLCAFA#50?
The R5F10WLCAFA#50 operates from 1.6 V to 5.5 V over –40°C to +85°C. It offers HALT (CPU stopped, peripherals active), STOP (all clocks halted except RTC/LVD), and SNOOZE (selected peripherals active during low-power wait) modes. Its lowest power state consumes just 0.61 μA with RTC and LVD enabled - verified in Section 2.1 of the R01DS0168EJ0232 datasheet.
Which communication interfaces are available on the R5F10WLCAFA#50, and how are they assigned to pins?
The R5F10WLCAFA#50 provides 3 UART channels (one LIN-compliant), 1 I²C interface, and 2 CSI (SPI-like) channels. Pin assignments are flexible: for example, UART0 uses P00 (TxD0) and P17 (RxD0), while UART1 maps to P06/P07 - all configurable via the Peripheral I/O Redirection Register (PIOR) to resolve routing conflicts without hardware changes.
R5F10WLCAFA#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 9x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10WLCAFA#50 FAQ
1.How can I place an order for R5F10WLCAFA#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10WLCAFA#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 R5F10WLCAFA#50 reliable?
The price and inventory of R5F10WLCAFA#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10WLCAFA#50 is usually 5 days.
3.What payment methods are accepted for R5F10WLCAFA#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10WLCAFA#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10WLCAFA#50?
R5F10WLCAFA#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10WLCAFA#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 R5F10WLCAFA#50?
For technical support, including R5F10WLCAFA#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10WLCAFA#50 requirements.
6.How does Aetrix verify that R5F10WLCAFA#50 is sourced from the original manufacturer or authorized distributors?
All R5F10WLCAFA#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 R5F10WLCAFA#50 meets industry standards.
7.What is the process for return or replacement of R5F10WLCAFA#50?
All R5F10WLCAFA#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10WLCAFA#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 R5F10WLCAFA#50 part is unused and in its original packaging.
Return procedure for R5F10WLCAFA#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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