Renesas R5F10WLCGFB#10
- Part No.:
- R5F10WLCGFB#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F10WLCGFB#10.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64LFQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F10WLCGFB#10 from Renesas is a 16-bit RL78/L13 microcontroller with integrated LCD controller/driver, 16 KB flash, 4 KB data flash, 1 KB RAM, and ultra-low power operation (71 μA/MHz active, 0.61 μA RTC+LVD). It features 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), operates from 1.6–5.5 V, supports -40°C to +105°C industrial temperature range, and targets battery-powered LCD-based metering and control devices.
For engineers reviewing the R5F10WLCGFB#10 datasheet, R5F10WLCGFB#10 pinout, R5F10WLCGFB#10 application, or R5F10WLCGFB#10 equivalent, key selection considerations include its 36-segment/4-common LCD drive capability, dual comparator inputs with internal reference, 9-channel 8/10-bit ADC, 8-channel 16-bit timer array, and support for UART, CSI, and I²C interfaces in a compact industrial-grade package.
Technical Context
The R5F10WLCGFB#10 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction execution time (0.04167 µs at 24 MHz up to 30.5 µs at 32.768 kHz). It integrates a voltage regulator, POR/LVD reset circuitry, and on-chip debug via TOOL0/P40 interface.
Its peripheral set includes a 4-channel DMA controller, multiplier/divider unit supporting 16×16→32-bit operations, real-time clock 2 with calendar and alarm, and LCD controller supporting internal boosting, capacitor split, or external resistor division methods - all optimized for low-voltage, low-power embedded display applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash / Data Flash / RAM | 16 KB code flash, 4 KB data flash (1M rewrite cycles), 1 KB RAM (≈7 KB usable with self-programming) |
| Power & Temp | 1.6–5.5 V supply; -40°C to +105°C industrial operating range (G-grade) |
| Low-Power Modes | HALT (71 μA/MHz), STOP (0.61 μA with RTC+LVD), SNOOZE mode for background flash writes |
| LCD Drive | 36 segment / 4 common outputs; supports internal boost, capacitor split, or external resistor division |
| Analog Peripherals | 9-channel 8/10-bit ADC (VDD-referenced), 2-channel comparator with selectable internal/external reference |
| Timers & Comm | 8-channel 16-bit timer array, 12-bit interval timer, RTC2, 1 watchdog timer; UART×1, CSI×1, I²C×1 |
Pinout & Package
Package: 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), RoHS-compliant, industrial-grade (G) marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | Port 0 digital I/O | Configurable as CMOS I/O, N-ch open-drain (VDD-tolerant), with TTL input buffer and pull-up; supports buzzer output (PCLBUZ0/1), serial I/O (SO00/SI00/TxD0/RxD0) |
| P10–P17 | Port 1 digital I/O | Includes analog inputs ANI22–ANI25, LCD segment outputs SEG35–SEG42, and serial interface pins (SCK00/SCL00/SDA00) |
| P20–P27 | Port 2 analog/digital I/O | Hosts AVREFP/AVREFM, ANI0–ANI1, ANI16–ANI21, and LCD segments SEG29/SEG33–SEG34 |
| P30–P33 | Port 3 digital I/O | Provides RTC1HZ output, REMOOUT, interrupt inputs (INTP3/INTP4), and LCD segments SEG20–SEG23 |
| P40–P45 | Port 4 analog/peripheral I/O | Contains TOOL0, IVREF0/IVREF1, IVCMP0/IVCMP1, TI05/TO05, and SCK10/SCL10/SI10/SDA10 |
| P52–P57 | Port 5 digital I/O | Supports INTP1–INTP6, LCD segments SEG4–SEG11, and timer inputs/outputs (TI00–TI02, TO00–TO02) |
| P60/P61 | I²C interface | SCLA0 and SDAA0 pins for I²C bus communication with standard addressing and clock stretching support |
| P70/P74–P77 | Key return & TKBO | KR0/KR4–KR7 for keypad scanning; TKBO00/TKBO01-0–TKBO01-2 for remote carrier output modulation |
| COM0–COM7 | LCD common outputs | 4 active common lines (COM0–COM3); COM4–COM7 available as segment outputs when 4-com mode selected |
| VDD/VSS/REGC | Power & regulation | VDD (1.6–5.5 V), VSS (ground), REGC connected to VSS via 0.47–1 μF capacitor for internal LDO stability |
Key Features
| Feature | Design Value |
|---|---|
| True Low Power Platform | 71 μA/MHz active current enables multi-year battery life in portable LCD meters and sensors |
| Integrated LCD Controller/Driver | Drives up to 36×4 segment-combination displays without external bias circuitry or charge pumps |
| Flexible Clock System | High-speed on-chip oscillator (±1.0% accuracy, 1–24 MHz) eliminates need for external crystal in cost-sensitive designs |
| Robust Analog Subsystem | Dual comparators with internal reference and 9-channel ADC enable precise sensor monitoring and threshold detection |
| Industrial Temperature Grade | G-grade (-40°C to +105°C) ensures reliable operation in HVAC controls, industrial panels, and smart utility meters |
| On-Chip Debug & Security | Full on-chip debug via TOOL0 interface; flash security features include block erase prohibition and boot swap function |
Applications
| Smart Utility Meter | Industrial Panel Display |
|---|---|
Use Scenario: Battery-powered electricity/water/gas meter with segmented LCD readout, tamper detection, and periodic data logging. IC Role / Device Role / Timing Role: Main system controller executing metrology firmware, driving LCD segments, sampling sensor inputs, and managing RTC-based billing intervals. Use Value: Ultra-low STOP-mode current (0.61 μA) extends battery life beyond 10 years; integrated LCD driver reduces BOM count by eliminating external bias ICs. |
Use Scenario: Local HMI on factory floor equipment requiring ruggedized display, keypad input, and real-time status feedback. IC Role / Device Role / Timing Role: Dedicated display and interface controller handling LCD refresh, key scan (KR0–KR7), buzzer alerts (PCLBUZ0/1), and serial comms to host PLC. Use Value: 64-pin LFQFP package fits compact PCB layouts; industrial temp rating ensures reliability near motors and drives; built-in LVD prevents erratic behavior during brownouts. |
| Portable Medical Device | Home Appliance Control |
Use Scenario: Handheld blood glucose monitor or thermometer with LCD display, button interface, and low-power sleep between measurements. IC Role / Device Role / Timing Role: System-on-chip managing analog front-end (ADC/comparator), LCD update, user input (key interrupt), and RTC timestamping of readings. Use Value: HALT mode reduces active power to match sensor acquisition duty cycle; internal voltage reference (1.45 V) enables stable ADC readings across battery discharge curve. |
Use Scenario: Microwave oven or washing machine control board requiring LCD display, keypad response, motor timing, and safety monitoring. IC Role / Device Role / Timing Role: Primary MCU coordinating cooking cycles, driving 4-common LCD, reading door switches (INTP0–INTP7), and generating PWM for fan/motor control (TAU channels). Use Value: Integrated 16-bit timer array provides precise phase-controlled outputs for triac dimming; 8/10-bit ADC monitors thermistor and current sense signals directly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10WLDGFB#10 | 48 KB flash, 1.5 KB RAM, same 64-pin LFQFP package and peripheral set | Higher memory capacity supports larger UI firmware or additional protocol stacks (e.g., Modbus RTU) | Select when firmware size exceeds 16 KB or future scalability is required without PCB redesign |
| R5F10WMCGFB#10 | 80-pin LFQFP, 96 KB flash, 6 KB RAM, adds 3 extra ADC channels and UART3 | Enables more complex HMI with expanded I/O, additional serial ports, and higher-resolution sensing | Choose for designs needing >9 analog inputs, dual UARTs, or larger code footprint - requires PCB layout change |
Compared with R5F10WLCGFB#10, R5F10WLDGFB#10 offers 3× more flash and 50% more RAM in identical packaging for seamless upgrade, while R5F10WMCGFB#10 delivers expanded I/O and peripherals at the cost of larger footprint and higher BOM cost.
Availability
R5F10WLCGFB#10 is available at Aetrix Electronics and suitable for smart utility meters, industrial panel displays, and portable medical devices requiring stable component supply, long-term lifecycle support, and industrial temperature qualification.
Supply support for R5F10WLCGFB#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, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/L13 product line is designed specifically for ultra-low-power LCD-based applications - integrating display drivers, precision analog, and robust timing in a single chip to reduce system complexity and bill-of-materials cost.
FAQ
What is the maximum operating frequency and corresponding instruction speed for the R5F10WLCGFB#10?
The R5F10WLCGFB#10 supports up to 24 MHz operation using the high-speed on-chip oscillator, achieving a minimum instruction execution time of 0.04167 µs. At 24 MHz, it delivers 31 DMIPS performance. The core also supports lower-frequency modes down to 32.768 kHz (30.5 µs/instruction) for ultra-low-power RTC and wake-up functions.
Does the R5F10WLCGFB#10 support external crystal oscillators, and what are the valid frequency ranges?
Yes, the R5F10WLCGFB#10 supports external crystals on X1/X2 (main system clock) and XT1/XT2 (subsystem clock). Valid main crystal frequencies are 1–20 MHz (VDD ≥ 2.7 V) or 1–16 MHz (VDD ≥ 2.4 V); subsystem crystal is 32.768 kHz. All crystal configurations require proper load capacitance matching per Renesas design guidelines.
How many LCD segments and commons does the R5F10WLCGFB#10 support, and what drive methods are available?
The R5F10WLCGFB#10 supports 36 segment outputs and 4 common outputs (or 32 segments/8 commons when configured for 8-com mode). It implements three LCD bias methods: internal voltage boosting, capacitor split, and external resistance division - selectable via register configuration to match display glass requirements.
What are the key differences between the R5F10WLCGFB#10 and the consumer-grade R5F10WLCAFB#10?
The R5F10WLCGFB#10 is rated for -40°C to +105°C industrial operation and uses G-grade silicon; the R5F10WLCAFB#10 is A-grade (-40°C to +85°C) and intended for consumer applications. Both share identical 16 KB flash, 4 KB data flash, 1 KB RAM, and peripheral sets - only temperature grade and screening differ.
Can the R5F10WLCGFB#10 perform simultaneous ADC conversion and flash programming?
Yes, the R5F10WLCGFB#10 supports background operation (BGO) for data flash writes: instructions can be executed from program memory while rewriting data flash. However, code flash programming requires CPU halt; ADC conversions may continue during data flash BGO if not sharing critical resources like DMA or shared clock domains.
R5F10WLCGFB#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10WLCGFB#10 FAQ
1.How can I place an order for R5F10WLCGFB#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10WLCGFB#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 R5F10WLCGFB#10 reliable?
The price and inventory of R5F10WLCGFB#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10WLCGFB#10 is usually 5 days.
3.What payment methods are accepted for R5F10WLCGFB#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10WLCGFB#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10WLCGFB#10?
R5F10WLCGFB#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10WLCGFB#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 R5F10WLCGFB#10?
For technical support, including R5F10WLCGFB#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10WLCGFB#10 requirements.
6.How does Aetrix verify that R5F10WLCGFB#10 is sourced from the original manufacturer or authorized distributors?
All R5F10WLCGFB#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 R5F10WLCGFB#10 meets industry standards.
7.What is the process for return or replacement of R5F10WLCGFB#10?
All R5F10WLCGFB#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10WLCGFB#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 R5F10WLCGFB#10 part is unused and in its original packaging.
Return procedure for R5F10WLCGFB#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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