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Renesas R5F10WMDAFB#10
- Part No.:
- R5F10WMDAFB#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F10WMDAFB#10.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:862
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Product details
Overview
R5F10WMDAFB#10 from Renesas is an RL78/L13 80-pin ultra-low-power 16-bit MCU with integrated LCD controller/driver, 32 KB flash, 4 KB data flash, 1.5 KB RAM, and operation from 1.6 V to 5.5 V. It delivers 31 DMIPS at 24 MHz, supports 12-channel 8/10-bit ADC, dual comparators, RTC2 with calendar, and is designed for battery-powered LCD-based consumer devices such as smart meters and portable medical displays.
For engineers reviewing the R5F10WMDAFB#10 datasheet, R5F10WMDAFB#10 pinout, R5F10WMDAFB#10 application, or R5F10WMDAFB#10 equivalent, key selection criteria include its 80-pin LFQFP (12 × 12 mm, 0.5 mm pitch) package, true low-power HALT/STOP/SNOOZE modes (down to 0.61 μA), integrated LCD drive up to 51 segments × 4 commons, and support for UART2/LIN, I²C, CSI, and remote control output.
Technical Context
The R5F10WMDAFB#10 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.04167 µs min @ 24 MHz). Its power management includes on-chip POR, 14-level LVD, and voltage regulator with REGC capacitor support.
It integrates a dedicated LCD controller supporting internal boosting, capacitor split, or external resistor division methods; a 12-bit interval timer; 8-channel 16-bit TAU timer with PWM; 1-channel 16-bit KB20 timer; and DMA with 4 channels enabling background data flash rewriting while executing code from flash memory.
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 | 32 KB code flash, 4 KB data flash (1M rewrite cycles), 1.5 KB RAM |
| Operating Voltage | 1.6 V to 5.5 V - enables single-supply operation in 1.8 V–5 V systems |
| Power Modes | HALT (71 μA/MHz), STOP (0.61 μA RTC+LVD), SNOOZE - extends battery life in portable LCD devices |
| LCD Drive Capability | Up to 51 segment × 4 common outputs; supports internal boost, capacitor split, or external resistor division |
| ADC & Comparators | 12-channel 8/10-bit A/D converter with internal 1.45 V reference and temperature sensor; 2-channel comparator with window mode |
| Timers & Clocks | 8-channel 16-bit TAU, 1-channel 16-bit KB20, RTC2 with calendar/alarm, 12-bit interval timer, watchdog, and high-speed on-chip oscillator (±1.0% accuracy) |
| Communication Interfaces | 3 UART (1 LIN-capable), 2 CSI, 1 I²C, 1 serial interface IICA - supports multi-protocol sensor and display connectivity |
Pinout & Package
Package: 80-pin LFQFP (12 × 12 mm, 0.5 mm pitch), RoHS-compliant, consumer-grade (−40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | Port 0 digital I/O | Configurable as CMOS I/O, N-ch open-drain (VDD-tolerant), or TTL input; supports buzzer/clock output |
| P10–P17 | Port 1 analog/digital I/O | Hosts 4 analog inputs (ANI22–ANI25); supports key interrupt (KR0–KR7 via P70–P77) |
| P20–P27 | Port 2 analog front-end | Includes AVREFP/AVREFM, ANI0/ANI1, and 8 additional analog inputs (ANI16–ANI21) |
| P30–P35 | Port 3 timer/LCD/remote | Provides TI03/TO03/REMOOUT, RTC1HZ, and SEG20–SEG25 outputs |
| P40–P47 | Port 4 peripheral interface | Hosts IVREF0/IVREF1, IVCMP0/IVCMP1, SCK10/SCL10, SI10/RxD1/SDA10 |
| P50–P57 | Port 5 timer/segment | Supports INTP1–INTP7, SEG4–SEG11, TI00–TI07, TO00–TO07 |
| P60/P61 | I²C interface pins | SCLA0/SDAA0 - dedicated I²C bus interface with clock stretching support |
| P70–P77 | Key return inputs | KR0–KR7 - hardware-accelerated key scanning for touchpad or keypad interfaces |
| COM0–COM7 | LCD common outputs | Drive up to 4 (or 8) LCD commons; VL1–VL4 supply LCD bias voltages |
| SEG0–SEG50 | LCD segment outputs | 51 independent segment drivers - enables alphanumeric or custom icon LCDs without external drivers |
| X1/X2, XT1/XT2 | Clock system inputs | Supports main crystal (1–20 MHz) and subsystem crystal (32.768 kHz) for precise RTC and low-power timing |
| REGC | Voltage regulator capacitor | Must connect 0.47–1 μF capacitor to VSS for stable internal LDO operation |
Key Features
| Feature | Design Value |
|---|---|
| True Low-Power Platform | 0.61 μA in STOP mode with RTC + LVD active - enables >10-year battery life in metering applications |
| Integrated LCD Controller | Configurable drive method (internal boost/capacitor split/resistor division) eliminates external LCD bias IC |
| Background Data Flash Rewrite | BGO allows full CPU execution from flash during 4 KB data flash updates - no firmware interruption required |
| Flexible Clock System | High-speed on-chip oscillator (±1.0% over VDD=1.8–5.5 V, TA=−20 to +85°C) reduces BOM vs. crystal |
| Hardware Key Interrupt | 8-key return inputs (KR0–KR7) with debounce and wake-up from STOP - simplifies keypad interface design |
| Multi-Protocol Serial Support | 3 UART (1 LIN), 2 CSI, 1 I²C, 1 IICA - enables simultaneous communication with sensors, displays, and host controllers |
Applications
| Smart Energy Meters | Portable Medical Devices |
|---|---|
Use Scenario: Battery-powered electricity/water/gas meters with segmented LCD display and tamper detection. IC Role / Device Role / Timing Role: Main system controller managing metrology interface, LCD refresh, real-time billing, and secure data logging. Use Value: Integrated LCD driver and ultra-low STOP-mode current (0.61 μA) enable 12+ year battery life without display degradation. | Use Scenario: Handheld blood glucose monitors or pulse oximeters with alphanumeric LCD and button interface. IC Role / Device Role / Timing Role: Sensor signal acquisition (12-channel ADC), LCD rendering, key scan, and alarm generation via RTC2 calendar. Use Value: On-chip temperature sensor and 1.45 V internal reference ensure accurate glucose measurement calibration across temperature ranges. |
| Home Appliance Control Panels | Industrial HMI Displays |
Use Scenario: Microwave oven or washing machine control panel with 4×16-segment LCD and rotary encoder/buttons. IC Role / Device Role / Timing Role: Real-time UI rendering, key interrupt handling (KR0–KR7), buzzer feedback, and motor control timing. Use Value: Hardware key interrupt with debounce and programmable clock/buzzer outputs eliminate external logic and reduce PCB area. | Use Scenario: Panel-mounted industrial status display with RS-485-connected PLC and local LCD readout. IC Role / Device Role / Timing Role: Protocol bridge between Modbus RTU (UART2) and local LCD; RTC2 maintains time-stamped event logs. Use Value: Dual UART support (including LIN-capable UART1) and 14-level LVD enable robust operation in noisy factory environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10WMEAFB#10 | 64 KB flash, 2 KB RAM, same 80-pin LFQFP package and peripheral set | Higher code density for complex UI or communication stacks; identical LCD and power specs | Select when firmware exceeds 32 KB or requires larger RAM buffer for data logging |
| R5F10WLDAFB#10 | 64-pin LQFP (10 × 10 mm, 0.5 mm pitch), 32 KB flash, 1.5 KB RAM, same core/peripherals | Smaller footprint and lower pin count; reduced I/O (49 vs. 65) and LCD segment count (36 vs. 51) | Select when board space is constrained and LCD complexity is limited to 36 segments × 4 commons |
Compared with R5F10WMEAFB#10, the R5F10WMDAFB#10 offers optimal balance of code space and cost for mid-complexity LCD applications; versus R5F10WLDAFB#10, it provides 16 more I/O pins and 15 additional LCD segments - critical for feature-rich appliance panels.
Availability
R5F10WMDAFB#10 is available at Aetrix Electronics and suitable for smart energy meters, portable medical devices, and home appliance control panels requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for R5F10WMDAFB#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 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 applications - integrating display driving, precision sensing, and robust communication in a single chip to minimize system BOM and power consumption.
FAQ
What is the maximum LCD segment count supported by the R5F10WMDAFB#10?
The R5F10WMDAFB#10 supports up to 51 segment outputs and 4 (or 8) common outputs, enabling alphanumeric or custom icon LCDs without external drivers. This capability is confirmed in the RL78/L13 datasheet Section 1.6 and applies specifically to 80-pin variants like the R5F10WMDAFB#10.
Does the R5F10WMDAFB#10 include an internal voltage reference for the ADC?
Yes, the R5F10WMDAFB#10 includes an internal 1.45 V reference voltage (IVREF0/IVREF1) usable by the 8/10-bit ADC and comparators. This reference is specified in the "A/D converter" section of the datasheet and functions across the full operating voltage range (1.6 V to 5.5 V).
What are the power supply requirements for the LCD voltage rails (VL1–VL4) on the R5F10WMDAFB#10?
The VL1–VL4 pins on the R5F10WMDAFB#10 supply bias voltage to the LCD panel and must be driven from the internal charge pump or external sources depending on the selected LCD drive method (internal boosting, capacitor split, or external resistor division). The datasheet specifies VLx voltage levels relative to VDD and requires proper decoupling per application configuration.
Can the R5F10WMDAFB#10 operate without an external crystal?
Yes, the R5F10WMDAFB#10 can operate using its high-speed on-chip oscillator (selectable from 1–24 MHz, ±1.0% accuracy) without any external crystal. External crystals (X1/X2, XT1/XT2) are optional and used only when higher timing precision or RTC accuracy is required.
How many UART interfaces does the R5F10WMDAFB#10 support, and which support LIN bus?
The R5F10WMDAFB#10 supports three UART interfaces: UART0, UART1 (LIN-capable), and UART3. UART1 includes dedicated LINSEL pin and protocol support per ISO 17987, enabling direct connection to automotive or industrial LIN networks without external transceivers.
R5F10WMDAFB#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-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:
- 58
- Program Memory Size:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10WMDAFB#10 FAQ
1.How can I place an order for R5F10WMDAFB#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10WMDAFB#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 R5F10WMDAFB#10 reliable?
The price and inventory of R5F10WMDAFB#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10WMDAFB#10 is usually 5 days.
3.What payment methods are accepted for R5F10WMDAFB#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10WMDAFB#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10WMDAFB#10?
R5F10WMDAFB#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10WMDAFB#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 R5F10WMDAFB#10?
For technical support, including R5F10WMDAFB#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10WMDAFB#10 requirements.
6.How does Aetrix verify that R5F10WMDAFB#10 is sourced from the original manufacturer or authorized distributors?
All R5F10WMDAFB#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 R5F10WMDAFB#10 meets industry standards.
7.What is the process for return or replacement of R5F10WMDAFB#10?
All R5F10WMDAFB#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10WMDAFB#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 R5F10WMDAFB#10 part is unused and in its original packaging.
Return procedure for R5F10WMDAFB#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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