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Renesas R5F10WMCAFA#10
- Part No.:
- R5F10WMCAFA#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F10WMCAFA#10.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:720
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Product details
Overview
R5F10WMCAFA#10 from Renesas is an 80-pin LQFP (14 × 14 mm, 0.65 mm pitch) 16-bit RL78/L13 microcontroller with integrated LCD controller/driver, 64 KB flash, 4 KB data flash, 4 KB RAM, and true low-power operation down to 71 μA/MHz. It features a 24 MHz RL78 CPU core delivering 31 DMIPS, 12-channel 8/10-bit ADC, dual comparators, and hardware RTC with calendar support - optimized for battery-powered LCD-based consumer instrumentation.
For engineers reviewing the R5F10WMCAFA#10 datasheet, R5F10WMCAFA#10 pinout, R5F10WMCAFA#10 application, or R5F10WMCAFA#10 equivalent, this page delivers verified technical context, validated pin functions, real-world use cases in portable meters and home appliances, and two confirmed alternative parts with documented functional and packaging differences.
Technical Context
The R5F10WMCAFA#10 implements the RL78 CISC CPU core with 3-stage pipeline and supports multiple clock domains: high-speed on-chip oscillator (1–24 MHz, ±1.0% accuracy), subsystem clock (32.768 kHz crystal), and low-speed on-chip oscillator (15 kHz). Its power management includes HALT, STOP, and SNOOZE modes, enabling ultra-low active current (71 μA/MHz) and RTC+LVD retention at 0.61 μA.
Peripheral integration centers on LCD control (51 segment / 4 common outputs, switchable voltage-boosting), 8-channel 16-bit timer array (TAU) with PWM and remote carrier output, 4-channel DMA, and serial interfaces including UART0–3 (LIN-capable), CSI, and I²C. The device supports self-programming with boot swap and flash shield window functions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 16-bit CISC with 3-stage pipeline; executes instructions in 0.04167 µs @24 MHz (high-speed mode) |
| Flash Memory | 64 KB code flash + 4 KB data flash; 1 KB erase block size; supports background operation during execution |
| RAM | 4 KB on-chip RAM; ~3 KB usable when self-programming and data flash functions are enabled |
| Operating Voltage | 1.6 V to 5.5 V; supports single-supply operation across full range, including 1.8 V low-voltage devices |
| Power Consumption | 71 μA/MHz active current; 0.61 μA in RTC+LVD retention mode; HALT/STOP/SNOOZE modes reduce system energy use |
| LCD Driver | 51 segment / 4 common outputs; supports internal voltage boosting, capacitor split, and external resistor division methods |
| ADC | 8/10-bit resolution A/D converter with 12 analog inputs; includes internal 1.45 V reference and temperature sensor |
Pinout & Package
Package: 80-pin plastic LQFP (14 × 14 mm, 0.65 mm pitch), RoHS-compliant, JEDEC standard footprint (Renesas code PLQP0080JB-E).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | SO00/TxD0/SEG43 | Serial data output / UART0 transmit / LCD segment driver; configurable via PIOR register |
| P17 | SI00/RxD0/SDA00/SEG42 | Serial data input / UART0 receive / I²C data / LCD segment; supports multi-function I/O sharing |
| P60 | SCLA0/(TI01)/(TO01) | I²C clock line / timer input/output; dedicated SCL function enables hardware I²C master/slave without bit-banging |
| P31 | RTC1HZ/INTP3/SEG21 | Real-time clock 1 Hz output / external interrupt / LCD segment; provides precise timebase for UI updates |
| P74–P77 | TKBO00/TKBO01-0–2/KR4–KR7 | Remote carrier output / key return lines; enables IR remote control and matrix keypad scanning in same port group |
| COM0–COM7 | LCD common outputs | Drive up to 8 LCD commons; used with SEG0–SEG50 to support 4×51 or 8×47 multiplexed displays |
| VDD/VSS | Power supply / ground | Single 1.6–5.5 V supply; REGC requires 0.47–1 μF capacitor to VSS for stable internal regulator operation |
Key Features
| Feature | Design Value |
|---|---|
| True Low-Power Platform | 71 μA/MHz active current and 0.61 μA RTC+LVD retention enable multi-year battery life in portable LCD instruments |
| Integrated LCD Controller/Driver | 51-segment × 4-common drive with selectable voltage-boost method eliminates external bias circuitry and reduces BOM cost |
| Hardware RTC with Calendar | 99-year calendar, alarm, and clock correction functions run independently of CPU - no firmware overhead for timekeeping |
| Multi-Mode Clock System | Configurable high-speed on-chip oscillator (±1.0% accuracy), 32.768 kHz crystal subsystem, and 15 kHz low-speed oscillator enable dynamic power/performance scaling |
| Self-Programming with Security | Boot swap and flash shield window allow safe field firmware updates while preventing unauthorized code access or rewriting |
Applications
| Portable Digital Multimeter | Smart Thermostat Display |
|---|---|
Use Scenario: Battery-powered handheld meter displaying voltage, current, resistance, and continuity with 4-digit LCD. IC Role / Device Role / Timing Role: Main MCU executing measurement algorithms, driving 4×32-segment LCD, managing button inputs, and controlling auto-ranging analog front-end. Use Value: Integrated 12-channel ADC, comparator, and LCD driver eliminate 3 external ICs; ultra-low 71 μA/MHz current extends AA battery life to >18 months. |
Use Scenario: Wall-mounted HVAC controller with segmented LCD showing temperature, mode, schedule, and humidity. IC Role / Device Role / Timing Role: System controller handling touch/key inputs, local display refresh, wireless module interface (UART), and RTC-based scheduling. Use Value: Hardware RTC with calendar and alarm enables accurate daily/weekly programming without host MCU intervention; 0.61 μA retention preserves time during power loss. |
| Home Appliance Control Panel | Medical Glucometer Display |
Use Scenario: Washing machine or microwave oven control panel with 4-line alphanumeric LCD and membrane keypad. IC Role / Device Role / Timing Role: HMI processor managing key scan (KR0–KR7), buzzer output (PCLBUZ0/1), LCD refresh, and appliance state logic. Use Value: Key interrupt (8 channels) and programmable buzzer output simplify mechanical UI design; 64 KB flash accommodates multi-language UI firmware. |
Use Scenario: Handheld blood glucose monitor with 3-digit LCD, test strip interface, and USB/Bluetooth data export. IC Role / Device Role / Timing Role: Sensor interface MCU acquiring analog strip signal via ADC, computing glucose value, updating LCD, and managing BLE UART link. Use Value: On-chip 1.45 V reference and temperature sensor enable calibrated ADC readings without external components; 4 KB RAM supports secure data logging buffer. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10WMDAFA#10 | 96 KB flash, 6 KB RAM, same 80-pin LQFP package and peripheral set | Supports larger firmware images (e.g., multi-language UI, BLE stack), higher RAM buffer for data logging | Select when firmware exceeds 64 KB or >4 KB runtime RAM is required; identical pinout and layout compatibility |
| R5F10WLCAFA#10 | 32 KB flash, 4 KB RAM, 64-pin LQFP (12 × 12 mm, 0.65 mm pitch), reduced I/O count (49 pins) | Lower cost and smaller PCB footprint; fewer ADC channels (9 vs. 12) and LCD segments (36 vs. 51) | Choose for space-constrained, lower-feature LCD applications where 64-pin routing is impractical or BOM cost is critical |
Compared with R5F10WMCAFA#10, R5F10WMDAFA#10 offers headroom for future firmware expansion without layout change, while R5F10WLCAFA#10 trades flash, I/O, and LCD capacity for compactness and cost - making all three suitable for tiered product families targeting different feature sets.
Availability
R5F10WMCAFA#10 is available at Aetrix Electronics and suitable for portable instrumentation, smart home controllers, and medical diagnostic devices requiring stable component supply, long-term industrial availability, and RoHS-compliant manufacturing.
Supply support for R5F10WMCAFA#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 targets ultra-low-power LCD-based applications such as portable meters, thermostats, and home appliances - combining integrated display drivers, precision analog, and energy-efficient processing in a single chip.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating of the R5F10WMCAFA#10?
The R5F10WMCAFA#10 operates at up to 24 MHz using its high-speed on-chip oscillator and delivers 31 DMIPS at that speed. This performance level is achieved with the RL78 CPU core's 3-stage pipeline and optimized instruction set, enabling responsive real-time control in LCD-based systems without external acceleration.
Does the R5F10WMCAFA#10 support hardware real-time clock functionality with calendar and alarm features?
Yes, the R5F10WMCAFA#10 integrates Real-Time Clock 2 (RTC2) with full calendar support (99 years), alarm interrupt, and clock correction capability. It runs independently from the main CPU using the 32.768 kHz subsystem clock, consuming only 0.61 μA in RTC+LVD retention mode - a key feature for battery-powered time-critical applications.
How many LCD segments and commons does the R5F10WMCAFA#10 support, and what drive methods are available?
The R5F10WMCAFA#10 supports up to 51 segment outputs and 4 common outputs (or 47 segments with 8 commons). It offers three configurable LCD bias methods: internal voltage boosting, capacitor split, and external resistance division - allowing flexible display selection without external bias ICs.
What are the key power-saving modes supported by the R5F10WMCAFA#10, and what are their typical current draws?
The R5F10WMCAFA#10 supports HALT, STOP, and SNOOZE modes. HALT halts the CPU while peripherals remain active (current scales with activity); STOP disables most clocks (sub-μA range); SNOOZE allows selected peripherals like UART or RTC to operate during low-power sleep. Active current is as low as 71 μA/MHz, and RTC+LVD retention draws just 0.61 μA.
Is the R5F10WMCAFA#10 pin-compatible with other RL78/L13 variants in the 80-pin LQFP package?
Yes, all RL78/L13 80-pin LQFP variants - including R5F10WMAAFA#10, R5F10WMCAFA#10, R5F10WMDAFA#10, and R5F10WMGAFA#10 - share identical pinouts and package dimensions (PLQP0080JB-E). Flash, RAM, and peripheral enablement differ by part number, but PCB layout and interconnect are fully interchangeable.
R5F10WMCAFA#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:
- 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 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10WMCAFA#10 FAQ
1.How can I place an order for R5F10WMCAFA#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10WMCAFA#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 R5F10WMCAFA#10 reliable?
The price and inventory of R5F10WMCAFA#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10WMCAFA#10 is usually 5 days.
3.What payment methods are accepted for R5F10WMCAFA#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10WMCAFA#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10WMCAFA#10?
R5F10WMCAFA#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10WMCAFA#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 R5F10WMCAFA#10?
For technical support, including R5F10WMCAFA#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10WMCAFA#10 requirements.
6.How does Aetrix verify that R5F10WMCAFA#10 is sourced from the original manufacturer or authorized distributors?
All R5F10WMCAFA#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 R5F10WMCAFA#10 meets industry standards.
7.What is the process for return or replacement of R5F10WMCAFA#10?
All R5F10WMCAFA#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10WMCAFA#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 R5F10WMCAFA#10 part is unused and in its original packaging.
Return procedure for R5F10WMCAFA#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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