Renesas R5F10WLAAFA#30
- Part No.:
- R5F10WLAAFA#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F10WLAAFA#30.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 64LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:1,071
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Product details
Overview
R5F10WLAAFA#30 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 LQFP (0.65 mm pitch), operates from 1.6–5.5 V, supports -40°C to +85°C, and targets battery-powered LCD display systems such as smart meters and portable medical devices.
For engineers reviewing the R5F10WLAAFA#30 datasheet, R5F10WLAAFA#30 pinout, R5F10WLAAFA#30 application, or R5F10WLAAFA#30 equivalent, this page delivers verified technical context, real-world use cases, validated alternatives, and supply-ready availability details - all grounded in Renesas' official R01DS0168EJ0232 Rev.2.32 specification.
Technical Context
The R5F10WLAAFA#30 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.04167 µs @ 24 MHz to 30.5 µs @ 32.768 kHz). It integrates a 12-bit interval timer, real-time clock 2 (calendar, alarm, correction), and dual comparators with selectable internal/external reference voltages.
Its peripheral set includes 8-channel 16-bit timer array (TAU), 4-channel DMA, UART/LIN-capable serial interfaces (1 UART, 1 CSI, 1 simplified I²C), 9-channel 8/10-bit ADC, and an LCD controller supporting up to 36 segment × 4 common outputs using internal voltage boosting or external resistor division.
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 on-chip RAM |
| Operating Voltage / Temp | 1.6–5.5 V supply; -40°C to +85°C ambient (Consumer grade A) |
| Power Modes | HALT (71 μA/MHz), STOP (0.61 μA w/ RTC+LVD), SNOOZE for low-latency wake-up |
| 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); 2-channel comparator with internal/external reference selection |
| Timers & Clocks | 8-channel 16-bit TAU, 12-bit interval timer, RTC2 (99-year calendar), 48 MHz KB20 timer clock |
Pinout & Package
Package: 64-pin plastic LQFP (12 × 12 mm, 0.65 mm pitch), RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | Port 0 digital I/O | Configurable as N-ch open-drain (VDD-rated), TTL input, or pull-up; supports buzzer output (PCLBUZ0/1) and debug (TOOLTxD/TOOLRxD) |
| P10–P17 | Port 1 digital I/O + analog inputs | Includes ANI22–ANI25; supports key interrupt (KR0–KR7 via P70/P74–P77) and LCD segment drive (SEG35–SEG42) |
| P20–P27 | Analog input port | Hosts AVREFP/AVREFM, ANI0/ANI1, and ANI16–ANI21; enables precision ADC referencing and temperature sensing |
| P30–P33 | LCD & timer I/O | Drives SEG20–SEG23, RTC1HZ output, REMOOUT, and TI01/TO01–TI04/TO04 timer functions |
| COM0–COM7 | LCD common outputs | 4 active common lines (up to 8 configurable); used with SEG0–SEG50 for multiplexed LCD driving |
| VDD / VSS / REGC | Power & regulation | VDD (1.6–5.5 V), VSS (ground), REGC requires 0.47–1 μF capacitor to VSS for internal regulator stability |
Key Features
| Feature | Design Value |
|---|---|
| True Low Power Platform | 71 μA/MHz active current and 0.61 μA STOP mode enable multi-year battery life in portable LCD applications |
| Integrated LCD Controller | Hardware-driven 36×4 segment/com driver eliminates external LCD bias IC and reduces BOM cost and layout area |
| Flexible Clock System | High-accuracy on-chip oscillator (±1.0% over VDD=1.8–5.5 V, TA=−20 to +85°C) eliminates need for external crystal in many designs |
| Data Flash with BGO | Background operation allows full CPU execution during 4 KB data flash rewrites - critical for field firmware updates and parameter logging |
| Peripheral I/O Redirection | PIOR register enables dynamic remapping of serial, timer, and interrupt functions to alternate pins - improves PCB routing flexibility |
Applications
| Smart Energy Meter Display | Portable Medical Device UI |
|---|---|
|
Use Scenario: Battery-powered electricity/water meter with segmented LCD showing consumption, tariff, and status icons. IC Role / Device Role / Timing Role: Primary MCU executing metering firmware, driving 36-segment LCD, managing RTC-based billing intervals, and handling UART communication with metrology IC. Use Value: Ultra-low STOP-mode current (0.61 μA) extends 10-year battery life; integrated LCD driver reduces component count by 3–5 parts versus discrete solutions. |
Use Scenario: Handheld pulse oximeter or glucose monitor requiring clear LCD readout, button interface, and low-power operation. IC Role / Device Role / Timing Role: Central controller managing optical sensor ADC sampling, key interrupt scanning (KR0–KR7), buzzer alerts (PCLBUZ0/1), and real-time display refresh. Use Value: On-chip 9-channel ADC with internal reference (1.45 V) enables accurate analog front-end without external voltage reference IC. |
| Industrial Control Panel | Home Appliance Keypad Interface |
|
Use Scenario: DIN-rail mounted HVAC or pump controller with 4-line LCD, pushbutton inputs, and RS-485 communication. IC Role / Device Role / Timing Role: System MCU handling LIN-capable UART for diagnostics, 16-bit TAU PWM for fan speed control, and comparator-based fault detection on power rails. Use Value: HALT mode (71 μA/MHz) maintains responsive UI while minimizing thermal load in enclosed enclosures; 14-level LVD supports robust brown-out detection. |
Use Scenario: Microwave oven or washing machine control board with segmented LCD, membrane keypad, and buzzer feedback. IC Role / Device Role / Timing Role: Dedicated HMI controller managing key return scanning (KR0–KR7), segment driving (SEG0–SEG50), buzzer tone generation, and RTC-based timer functions. Use Value: Hardware LCD controller with capacitor-split method eliminates external charge pump IC; key interrupt logic reduces polling overhead by >90%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10WLEAFA#30 | 64 KB flash, 4 KB data flash, 2 KB RAM - 4× more code memory, same package and peripherals | Suitable for feature-rich firmware (e.g., OTA updates, encryption stacks) where 16 KB is insufficient | Select when firmware size exceeds 16 KB but LCD, low-power, and pin compatibility must be preserved |
| R5F10WMCAFA#30 | 80-pin LQFP, 32 KB flash, 4 KB data flash, 1.5 KB RAM - adds 3 extra ADC channels and UART3 | Required for designs needing >9 analog inputs or dual UART + LIN (e.g., multi-sensor industrial gateways) | Choose only if additional I/O, ADC, or serial channels justify larger footprint and higher cost |
Compared with R5F10WLAAFA#30, R5F10WLEAFA#30 offers scalable code space without changing layout or power design, while R5F10WMCAFA#30 trades compactness for expanded analog and communication capability - making the R5F10WLAAFA#30 optimal for cost-sensitive, space-constrained LCD HMI applications.
Availability
R5F10WLAAFA#30 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 R5F10WLAAFA#30 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 engineered for ultra-low-power LCD-based human-machine interfaces, emphasizing extended battery life, integrated display driving, and robust operation across consumer temperature ranges.
FAQ
What is the maximum operating frequency and instruction throughput of the R5F10WLAAFA#30?
The R5F10WLAAFA#30 supports up to 24 MHz operation using its high-speed on-chip oscillator, delivering 31 DMIPS performance. Its minimum instruction execution time is 0.04167 µs at 24 MHz, confirmed in the RL78/L13 datasheet R01DS0168EJ0232 Rev.2.32 Section 1.1. The core achieves this via a 3-stage pipeline and optimized CISC architecture - not through speculative execution or cache.
Does the R5F10WLAAFA#30 support hardware LCD bias generation without external components?
Yes, the R5F10WLAAFA#30 integrates a programmable LCD controller that supports internal voltage boosting, capacitor-split, and external resistor-division methods. When configured for internal boosting, it generates required LCD bias voltages directly - eliminating external charge pumps or resistor networks for basic 36×4 segment displays.
How many analog input channels does the R5F10WLAAFA#30 provide, and what is their resolution?
The R5F10WLAAFA#30 provides 9 analog input channels (ANI0, ANI1, ANI16–ANI25) with selectable 8-bit or 10-bit resolution. The ADC uses VDD as reference and includes an internal 1.45 V reference voltage source - both confirmed in Sections 1.1 and 1.6 of the R01DS0168EJ0232 datasheet.
Can the R5F10WLAAFA#30 operate reliably at 1.6 V supply voltage?
Yes, the R5F10WLAAFA#30 is fully specified for operation down to 1.6 V across its entire -40°C to +85°C temperature range. This enables direct integration with single-cell Li-ion or alkaline battery systems without intermediate regulation - a key advantage for portable LCD applications.
What debug and programming interfaces are supported by the R5F10WLAAFA#30?
The R5F10WLAAFA#30 supports on-chip debugging via the TOOLRxD/TOOLTxD pins (P17/P00), compatible with Renesas E2 emulator and standard SWD protocols. It also supports self-programming with boot swap and flash shield window functions - enabling secure firmware updates in the field without external programmers.
R5F10WLAAFA#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/L13
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 9x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10WLAAFA#30 FAQ
1.How can I place an order for R5F10WLAAFA#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10WLAAFA#30 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 R5F10WLAAFA#30 reliable?
The price and inventory of R5F10WLAAFA#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10WLAAFA#30 is usually 5 days.
3.What payment methods are accepted for R5F10WLAAFA#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10WLAAFA#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10WLAAFA#30?
R5F10WLAAFA#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10WLAAFA#30 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 R5F10WLAAFA#30?
For technical support, including R5F10WLAAFA#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10WLAAFA#30 requirements.
6.How does Aetrix verify that R5F10WLAAFA#30 is sourced from the original manufacturer or authorized distributors?
All R5F10WLAAFA#30 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 R5F10WLAAFA#30 meets industry standards.
7.What is the process for return or replacement of R5F10WLAAFA#30?
All R5F10WLAAFA#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10WLAAFA#30, 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 R5F10WLAAFA#30 part is unused and in its original packaging.
Return procedure for R5F10WLAAFA#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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