Renesas R5F100LCAFA#10
- Part No.:
- R5F100LCAFA#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F100LCAFA#10.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:952
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Product details
Overview
R5F100LCAFA#10 from Renesas is a 64-pin LQFP-0.65mm 16-bit RL78/G13 microcontroller with 512 KB flash, 8 KB data flash, 32 KB RAM, 1.6–5.5 V operation, and ultra-low-power HALT/STOP/SNOOZE modes-designed for industrial control panels requiring real-time RTC, 10-bit ADC (26 channels), and LIN-capable UART.
For engineers reviewing the R5F100LCAFA#10 datasheet, R5F100LCAFA#10 pinout, R5F100LCAFA#10 application, or R5F100LCAFA#10 equivalent, key selection criteria include its 64-pin LQFP package, -40°C to +85°C industrial temperature grade (D), integrated 12-bit interval timer and real-time clock with calendar/alarm, background data flash rewrite capability, and support for up to 16-channel 16-bit timers.
Technical Context
The R5F100LCAFA#10 implements the RL78 CPU core with 3-stage pipeline CISC architecture, enabling instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz ultra-low-speed mode). It integrates dual-clock domains: high-speed on-chip oscillator (±1.0% accuracy, selectable 1–32 MHz) and dedicated low-speed oscillator for watchdog and RTC.
Its peripheral set includes 3× I²C/Simplified I²C interfaces, 2–4 UART/LIN channels, 2–8 CSI/SPI channels, 8–16× 16-bit timers, 1× 12-bit interval timer, 1× real-time clock with calendar and alarm, and 1× watchdog timer-all accessible via memory-mapped registers and configurable through system control registers (SFRs).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; supports variable instruction timing for power/performance trade-off. |
| Flash Memory | 512 KB code flash (1 KB block size); enables secure boot swap and flash shield window protection. |
| Data Flash | 8 KB background operation (BGO) capable; supports 1M write cycles at 1.8–5.5 V without halting CPU. |
| RAM | 32 KB on-chip RAM; includes dedicated self-programming library RAM area starting at F7F00H. |
| Operating Voltage | 1.6–5.5 V single supply; supports direct interface with 1.8/2.5/3.0 V logic devices via configurable I/O voltage tolerance. |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA with RTC+LVD active), SNOOZE (low-latency wake-up from peripheral events). |
| ADC | 10-bit resolution, 26 analog input channels, internal 1.45 V reference and temperature sensor (HS mode only). |
Pinout & Package
Package: 64-pin LQFP (12 × 12 mm, 0.65-mm pitch), RoHS-compliant, JEDEC standard PLQP0064JA-A footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O domain operation across full voltage range. |
| P00–P07, P10–P17, P20–P27, P30–P37, P40–P47, P50–P57, P60–P67, P70–P77 | General-purpose I/O ports | 64 total I/O pins; individually configurable as N-ch open drain (6 V tolerant), TTL input, or pull-up enabled. |
| P10/P11 | SCK00/SCL00, SI00/RxD0 | Shared SPI clock/I²C clock and SPI input/UART receive; supports multi-protocol peripheral sharing. |
| P20/P21 | ANI0/AVREFP, ANI1/AVREFM | Dedicated ADC reference inputs; AVREFP/AVREFM enable precise ratiometric measurement with external reference. |
| RESET | Reset input | Active-low reset with internal POR and programmable LVD (14 threshold levels) for robust brown-out detection. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.57 μA in STOP mode with RTC + LVD active-enables battery-backed real-time logging for >10 years on coin cell. |
| Background data flash rewrite | Execute program from flash while rewriting 8 KB data flash; eliminates firmware interruption during field updates. |
| Multi-protocol serial interface | 3× I²C, 4× UART/LIN, 8× CSI channels-supports concurrent CAN gateway, sensor hub, and display interface in one chip. |
| Real-time clock with calendar | 99-year calendar, alarm interrupt, and auto clock correction-eliminates need for external RTC IC in time-stamped HMI applications. |
| On-chip debug & security | Fully compliant with Renesas E2 emulator; flash block erase prohibition prevents unauthorized firmware extraction. |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
Use Scenario: Touch-enabled operator interface in factory automation cabinet with ambient temperature up to +85°C. IC Role / Device Role / Timing Role: Main controller managing display refresh, button scan, LIN communication to PLC, and RTC-based event logging. Use Value: Integrated 26-channel ADC reads analog sensors directly; 512 KB flash stores GUI assets and firmware; STOP mode extends backup battery life. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ in HVAC ducts. IC Role / Device Role / Timing Role: Data acquisition engine with periodic wake-up, sensor reading, BGO flash logging, and UART transmission to gateway. Use Value: 0.57 μA STOP current enables >5-year battery life; internal temperature sensor calibrates external sensors; LIN support simplifies bus integration. |
| Energy Metering Module | Motor Control Interface |
Use Scenario: DIN-rail mounted electricity meter with pulse counting, tariff switching, and tamper detection. IC Role / Device Role / Timing Role: System-on-chip handling metrology interface, EEPROM emulation, secure timekeeping, and optical IR communication. Use Value: 8 KB data flash replaces external EEPROM for tariff tables; RTC calendar ensures accurate billing period transitions; LVD detects supply anomalies for tamper alerts. | Use Scenario: Brushless DC motor driver board with Hall-effect feedback, PWM generation, and thermal monitoring. IC Role / Device Role / Timing Role: Motion controller generating complementary 16-bit PWM, reading Hall sensors, and managing overtemperature shutdown. Use Value: 16× 16-bit timers provide precise phase-aligned PWM; 10-bit ADC measures shunt current and thermistor; SNOOZE mode enables fast fault response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LLAFA#10 | Same 64-pin LQFP package, identical 512 KB flash/8 KB data flash/32 KB RAM, but rated for -40°C to +105°C (G grade). | Required for extended-temperature industrial environments (e.g., under-hood automotive ECUs or outdoor solar inverters). | Select when ambient operating temperature exceeds +85°C; otherwise, R5F100LCAFA#10 offers cost-optimized D-grade performance. |
| R5F101LCAFA#10 | Pin-compatible 64-pin LQFP variant with no data flash memory (0 KB); retains same core, RAM, peripherals, and voltage range. | Suitable for applications where firmware updates occur only via external host or where data logging is handled externally. | Choose when data flash is unnecessary-reduces BOM cost and simplifies flash management; requires external nonvolatile storage for configuration data. |
Compared with R5F100LLAFA#10 and R5F101LCAFA#10, the R5F100LCAFA#10 delivers optimal balance of industrial-grade reliability (-40°C to +85°C), integrated data flash for field updates, and full peripheral complement-making it the preferred choice for cost-sensitive, temperature-constrained embedded control designs.
Availability
R5F100LCAFA#10 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, energy metering modules, and motor control interfaces requiring stable component supply across long production lifecycles.
Supply support for R5F100LCAFA#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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and IoT markets.
The RL78/G13 product line delivers true low-power 16-bit MCUs optimized for general-purpose embedded control-emphasizing energy efficiency, integrated peripherals, and seamless toolchain support for rapid industrial device development.
FAQ
What is the maximum operating frequency and corresponding power consumption of the R5F100LCAFA#10?
The R5F100LCAFA#10 operates at up to 32 MHz using its high-speed on-chip oscillator, delivering 41 DMIPS performance. At this frequency, typical active current is 66 μA per MHz. In STOP mode with only RTC and LVD active, it draws just 0.57 μA-verified per R01DS0131EJ0380 Rev.3.80 datasheet Section 1.1.
Does the R5F100LCAFA#10 support in-system programming and secure firmware updates?
Yes, the R5F100LCAFA#10 supports full in-system programming via on-chip debug interface and includes self-programming capabilities for both code and data flash. It features flash shield window and block erase prohibition functions to prevent unauthorized access-detailed in Section 1.1 "Code flash memory" of the R01DS0131EJ0380 datasheet.
How many serial communication interfaces does the R5F100LCAFA#10 integrate, and which protocols are supported?
The R5F100LCAFA#10 integrates up to 3 I²C/Simplified I²C channels, 4 UART/LIN-capable channels, and 8 CSI (SPI-compatible) channels. All are independently configurable and can operate concurrently-enabling simultaneous communication with displays, sensors, and LIN slave nodes without external bridging logic.
What is the ADC resolution, channel count, and reference configuration for the R5F100LCAFA#10?
The R5F100LCAFA#10 features a 10-bit successive-approximation ADC with 26 analog input channels. It supports external reference voltages or internal 1.45 V reference (available only in HS mode), and includes an on-chip temperature sensor-specified in Section 1.1 "A/D converter" of the R01DS0131EJ0380 datasheet.
Is the R5F100LCAFA#10 pin-compatible with other RL78/G13 variants in the same package?
Yes, all RL78/G13 devices in the 64-pin LQFP-0.65mm package-including R5F100LCAFA#10, R5F100LLAFA#10, and R5F101LCAFA#10-share identical pinouts and mechanical footprint (PLQP0064JA-A). Functional differences (e.g., data flash presence, temperature grade) do not affect PCB layout compatibility.
R5F100LCAFA#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 48
- Program Memory Size:
- 32KB (32K 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:
R5F100LCAFA#10 FAQ
1.How can I place an order for R5F100LCAFA#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100LCAFA#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 R5F100LCAFA#10 reliable?
The price and inventory of R5F100LCAFA#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100LCAFA#10 is usually 5 days.
3.What payment methods are accepted for R5F100LCAFA#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100LCAFA#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100LCAFA#10?
R5F100LCAFA#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100LCAFA#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 R5F100LCAFA#10?
For technical support, including R5F100LCAFA#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100LCAFA#10 requirements.
6.How does Aetrix verify that R5F100LCAFA#10 is sourced from the original manufacturer or authorized distributors?
All R5F100LCAFA#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 R5F100LCAFA#10 meets industry standards.
7.What is the process for return or replacement of R5F100LCAFA#10?
All R5F100LCAFA#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100LCAFA#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 R5F100LCAFA#10 part is unused and in its original packaging.
Return procedure for R5F100LCAFA#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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