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Renesas R5F10WMDAFB#50
- Part No.:
- R5F10WMDAFB#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F10WMDAFB#50.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
R5F10WMDAFB#50 from Renesas is an 80-pin RL78/L13 16-bit microcontroller with integrated LCD controller/driver, 32 KB code flash, 4 KB data flash, and 1.5 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), targeting battery-powered LCD display applications such as smart meters and portable medical devices.
For engineers reviewing the R5F10WMDAFB#50 datasheet, R5F10WMDAFB#50 pinout, R5F10WMDAFB#50 application, or R5F10WMDAFB#50 equivalent, this page provides verified technical context, exact pin functions for LFQFP-80 (0.5 mm pitch), real-world LCD segment/common drive capability (51 segments / 4–8 commons), confirmed UART/LIN/CSI/I²C interface counts, and validated alternative MCUs for low-power LCD control migration.
Technical Context
The R5F10WMDAFB#50 implements the RL78 CPU core with a 3-stage CISC pipeline, supporting instruction execution times from 0.04167 µs (24 MHz on-chip oscillator) to 30.5 µs (32.768 kHz subsystem clock). Its memory architecture includes 32 KB of code flash (1 KB block size), 4 KB data flash with background operation (BGO), and 1.5 KB on-chip RAM - all accessible within a 1 MB address space.
It integrates dedicated peripherals for LCD systems: programmable voltage boosting, capacitor-split, or resistor-divider LCD bias generation; up to 51 segment and 8 common outputs; and built-in key interrupt (8 channels) and remote carrier output (REMOOUT). Power management includes HALT, STOP, and SNOOZE modes, plus a 14-level voltage detector (LVD) and POR circuit.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash Memory | 32 KB code flash (1 KB erase blocks) + 4 KB data flash with BGO and 1M write cycles |
| Operating Voltage | 1.6 V to 5.5 V - enables single-supply operation across 1.8 V, 3.3 V, and 5 V systems |
| Performance | 31 DMIPS @ 24 MHz; min. instruction time = 0.04167 µs (24 MHz HS on-chip oscillator) |
| Power Modes | HALT (71 µA/MHz), STOP (0.61 µA w/ RTC+LVD), SNOOZE - optimized for intermittent LCD display updates |
| LCD Driver | 51 segment / 4–8 common outputs; supports internal boost, capacitor split, or external resistor bias |
| Peripherals | 12-channel 8/10-bit ADC, 2 comparators, 8× 16-bit TAU timers, 1× 16-bit KB20 timer, 3× UART (1 w/ LIN), 2× CSI, 1× I²C, 4× DMA channels |
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 | SO00/TxD0/SEG43 | Primary serial data output (SPI/UART0) and LCD segment driver - configurable via PIOR |
| P17 | SI00/RxD0/SDA00/SEG42 | Multi-function input: SPI/UART0/I²C data and LCD segment - supports mixed-signal HMI interfaces |
| P60/P61 | SCLA0/SDAA0 | Dedicated I²C bus interface (not shared with GPIO) - ensures reliable communication with external sensors/display controllers |
| P30 | TI03/TO03/REMOOUT/SEG20 | Remote carrier output (IR modulation) + timer I/O + LCD segment - enables IR remote-controlled LCD devices |
| P70–P77 | KR0–KR7 | Key return inputs for matrix keypad scanning - hardware-accelerated key interrupt (8 channels) |
| COM0–COM7 | LCD common outputs | Drive up to 8 LCD commons; combined with SEG0–SEG50 for full 51×8 segment mapping |
| VDD/VSS | Power supply pins | Single 1.6–5.5 V rail; REGC requires 0.47–1 µF capacitor to VSS for stable internal regulator |
Key Features
| Feature | Design Value |
|---|---|
| True Low-Power Platform | 71 µA/MHz active current and 0.61 µA STOP mode with RTC + LVD active - extends battery life in portable LCD instruments |
| Integrated LCD Controller/Driver | Configurable bias generation (boost/capacitor/resistor) and 51×8 segment-common drive - eliminates external LCD bias IC |
| Flexible Clock System | High-accuracy ±1.0% 24 MHz on-chip oscillator + 32.768 kHz crystal support - removes need for external timing components |
| Hardware Key Interrupt | 8 dedicated KR inputs with debounce and wake-up from STOP - enables responsive, low-power keypad interfaces |
| Data Flash with BGO | 4 KB data flash supports background rewriting while executing code - enables robust firmware parameter storage and OTA updates |
Applications
| Smart Energy Meter Display | Portable Medical Monitor |
|---|---|
|
Use Scenario: Battery-powered electricity/water/gas meter with segmented LCD showing consumption, tariff, and status icons. IC Role / Device Role / Timing Role: Primary system MCU managing LCD refresh, pulse counting (utility input), real-time calendar, and IR/UART communication. Use Value: Integrated LCD driver and 0.61 µA STOP mode enable >10-year battery life; 32 KB flash accommodates metrology algorithms and UI logic. |
Use Scenario: Handheld blood pressure or glucose monitor with monochrome LCD, tactile buttons, and Bluetooth LE interface. IC Role / Device Role / Timing Role: Central controller handling analog sensor acquisition (ADC), button scan (KR inputs), buzzer feedback (PCLBUZ), and display update scheduling. Use Value: On-chip 12-channel ADC and 8-key interrupt reduce BOM; 1.6 V minimum operation supports single-cell Li-ion or alkaline battery discharge curves. |
| Industrial Control Panel | Home Appliance UI Module |
|
Use Scenario: DIN-rail mounted HVAC or pump controller with 4-line segmented LCD, rotary encoder, and relay drivers. IC Role / Device Role / Timing Role: HMI processor managing LCD rendering, encoder position tracking (TAU input capture), and watchdog-safe state machine execution. Use Value: 8× 16-bit timers support precise PWM for backlight dimming and encoder quadrature decoding; 14-level LVD ensures safe shutdown during brown-out. |
Use Scenario: Microwave oven or washing machine front panel with segmented LCD, membrane keypad, and buzzer alerts. IC Role / Device Role / Timing Role: Dedicated UI controller handling key scan, segment mapping, buzzer tone generation (PCLBUZ), and RTC-based timer functions. Use Value: Hardware-accelerated key interrupt and programmable clock/buzzer outputs eliminate software polling overhead and simplify firmware design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power LCD microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10WMEAFB#50 | 64 KB flash, 2 KB RAM, same 80-pin LFQFP package and peripheral set | Supports larger UI firmware, extended calibration tables, or dual-display buffering | Select when additional code space or RAM is required without changing PCB layout |
| R5F10WLDAFB#50 | 64-pin LQFP (10×10 mm, 0.5 mm pitch), 32 KB flash, 1.5 KB RAM, identical core/peripherals but fewer I/O (49 vs. 65) | Lower pin count reduces board area and cost for simpler LCD interfaces (≤36 segments, ≤4 commons) | Choose for space-constrained designs where 65 I/O and 51-segment drive are unnecessary |
Compared with R5F10WMDAFB#50, R5F10WMEAFB#50 offers +32 KB flash for feature-rich UIs, while R5F10WLDAFB#50 trades 16 fewer pins and reduced LCD drive for smaller footprint - both retain identical low-power behavior, clocking, and peripheral compatibility.
Availability
R5F10WMDAFB#50 is available at Aetrix Electronics and suitable for smart energy meters, portable medical monitors, and industrial HMI panels requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for R5F10WMDAFB#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 is engineered for ultra-low-power LCD-based human-machine interfaces, integrating display control, sensing, and communication in a single chip for battery-operated instrumentation and appliances.
FAQ
What is the maximum LCD segment count supported by the R5F10WMDAFB#50?
The R5F10WMDAFB#50 supports up to 51 segment outputs and 4–8 common outputs, depending on configuration. When using 8 commons, it drives 47 segments; with 4 commons, full 51-segment capability is enabled - verified in Section 1.6 and Figure 1-2 of R01DS0168EJ0232 Rev.2.32.
Does the R5F10WMDAFB#50 include hardware support for IR remote control transmission?
Yes, the R5F10WMDAFB#50 includes a dedicated REMOOUT function on pin P30, which generates modulated carrier signals (e.g., 38 kHz) for infrared remote control. This is implemented in hardware using Timer Array Unit channel 3, eliminating CPU overhead during transmission.
What are the valid operating voltage ranges and temperature grades for the R5F10WMDAFB#50?
The R5F10WMDAFB#50 is rated for VDD = 1.6 V to 5.5 V at TA = −40°C to +85°C (consumer grade). It does not support the industrial −40°C to +105°C range - that grade uses suffix "G" (e.g., R5F10WMDGFB#50), per Table 1-2 and Page 4 of R01DS0168EJ0232 Rev.2.32.
Can the R5F10WMDAFB#50 execute code while rewriting data flash memory?
Yes, the R5F10WMDAFB#50 supports Background Operation (BGO) for its 4 KB data flash. Instructions can be fetched and executed from code flash while data flash is being rewritten - confirmed in Section 1.1 "Data flash memory" and Chapter 3 of the RL78/L13 User's Manual.
How many UART interfaces with LIN-bus support does the R5F10WMDAFB#50 provide?
The R5F10WMDAFB#50 provides one UART interface with native LIN-bus protocol support (UART2 on pins P03/P04), plus two additional UART channels (UART0 and UART3) without LIN functionality - specified in Section 1.1 "Serial interface" and Table 1-2 (Page 9–11) of R01DS0168EJ0232 Rev.2.32.
R5F10WMDAFB#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-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:
- 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#50 FAQ
1.How can I place an order for R5F10WMDAFB#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10WMDAFB#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 R5F10WMDAFB#50 reliable?
The price and inventory of R5F10WMDAFB#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10WMDAFB#50 is usually 5 days.
3.What payment methods are accepted for R5F10WMDAFB#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10WMDAFB#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10WMDAFB#50?
R5F10WMDAFB#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10WMDAFB#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 R5F10WMDAFB#50?
For technical support, including R5F10WMDAFB#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10WMDAFB#50 requirements.
6.How does Aetrix verify that R5F10WMDAFB#50 is sourced from the original manufacturer or authorized distributors?
All R5F10WMDAFB#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 R5F10WMDAFB#50 meets industry standards.
7.What is the process for return or replacement of R5F10WMDAFB#50?
All R5F10WMDAFB#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10WMDAFB#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 R5F10WMDAFB#50 part is unused and in its original packaging.
Return procedure for R5F10WMDAFB#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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