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Renesas R5F100LKAFB#X0
- Part No.:
- R5F100LKAFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F100LKAFB#X0.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,392
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Product details
Overview
R5F100LKAFB#X0 from Renesas is a 64-pin LFQFP (10 × 10 mm, 0.5-mm pitch), industrial-grade RL78/G13 16-bit microcontroller with 384 KB code flash, 8 KB data flash, 24 KB RAM, and true low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD). It integrates 16-bit timers, 10-bit ADC (26 channels), UART/SPI/I²C interfaces, and real-time clock - deployed in battery-powered industrial sensors and motor control modules.
For engineers reviewing the R5F100LKAFB#X0 datasheet, R5F100LKAFB#X0 pinout, R5F100LKAFB#X0 application, or R5F100LKAFB#X0 equivalent, key selection criteria include its 384 KB flash/24 KB RAM configuration, -40°C to +105°C industrial temperature rating (G-grade), LFQFP-64 0.5-mm pitch package, and support for background data flash rewriting with BGO.
Technical Context
The R5F100LKAFB#X0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling minimum instruction execution times from 0.03125 μs (@32 MHz high-speed oscillator) to 30.5 μs (@32.768 kHz subsystem clock). Its memory subsystem includes 384 KB on-chip code flash (1 KB block size), 8 KB data flash with 1M rewrite cycles, and 24 KB SRAM - all operating across 1.6–5.5 V supply.
Peripheral integration includes up to 16 channels of 16-bit timer, 1-channel 12-bit interval timer, calendar-based RTC with alarm/correction, 10-bit ADC with internal 1.45 V reference and temperature sensor, and dual DMA controllers supporting 2- or 4-channel transfers with 2-clock latency between SFR and RAM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz - delivers 41 DMIPS performance at full speed |
| Flash Memory | 384 KB code flash with 1 KB erase blocks and security lock against unauthorized rewrite |
| Data Flash | 8 KB with background operation (BGO), 1,000,000 write cycles, and 1.8–5.5 V rewrite voltage range |
| RAM | 24 KB on-chip SRAM, including dedicated areas for flash library self-programming |
| ADC | 10-bit resolution, 26 input channels, internal 1.45 V reference, and integrated temperature sensor |
| Operating Temperature | -40°C to +105°C (G-grade industrial specification) |
| Supply Voltage | 1.6 V to 5.5 V - supports direct connection to Li-ion, 3.3 V, and 5 V rails without level-shifting |
Pinout & Package
Package: LFQFP-64 (10 × 10 mm, 0.5-mm pitch), lead-free, RoHS-compliant, industrial-grade (G) marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains support stable operation across 1.6–5.5 V; multiple VSS pins reduce noise coupling |
| 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 configurable as N-ch open-drain (6 V tolerant), TTL input, or pull-up; supports 1.8/2.5/3 V interface levels |
| P10/P11 | SPI0 clock/data (SCK00/SI00), UART0 RX (RxD0), LIN, tool interface | Multi-function pins enable shared debug (TOOLRxD), serial comms, and LIN bus without external transceiver |
| P20/P21 | ADC reference inputs (AVREFP/AVREFM) | Enable precise ratiometric or absolute analog measurements using internal or external references |
| XT1/XT2 | External crystal oscillator connections | Support 32.768 kHz crystal for RTC accuracy or higher-frequency crystals for system clock precision |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD circuits for robust power sequencing |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power modes | HALT (0.57 μA), STOP (0.94 μA), and SNOOZE (low-power peripheral operation while CPU sleeps) |
| High-accuracy on-chip oscillator | ±1.0% tolerance over -20°C to +85°C at 32 MHz - eliminates need for external crystal in cost-sensitive designs |
| Self-programmable flash | Boot swap and flash shield window functions enable secure firmware updates and field upgrades without external programmer |
| Real-time clock with calendar | 99-year calendar, alarm, and auto-correction - reduces host MCU overhead in time-stamped logging and scheduling |
| Background data flash rewrite | Execute code from program memory while rewriting data flash - enables seamless parameter storage during runtime |
| Integrated temperature sensor | On-die sensor calibrated for ±3°C accuracy - provides thermal monitoring without external components |
Applications
| Industrial Sensor Node | Smart HVAC Controller |
|---|---|
|
Use Scenario: Battery-powered wireless temperature/humidity/pressure node with 10-year deployment life. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition, low-power scheduling, RF transmission, and RTC-triggered wake-up. Use Value: 0.57 μA STOP mode with RTC/LVD active extends battery life; 10-bit ADC with internal reference ensures accurate sensor readings without external precision references. |
Use Scenario: Wall-mounted HVAC control unit with display, fan speed regulation, and communication to building management system. IC Role / Device Role / Timing Role: Central MCU handling UI input, PWM fan control, environmental sensing, and Modbus RTU over UART. Use Value: 384 KB flash accommodates complex UI logic and protocol stacks; 16-bit timers provide precise PWM generation for variable-speed fans. |
| Motor Drive Interface Module | Programmable Logic Controller (PLC) I/O Extender |
|
Use Scenario: Compact add-on board for BLDC motor commutation feedback and current sensing in embedded drives. IC Role / Device Role / Timing Role: Dedicated timing and analog acquisition engine interfacing with gate drivers and shunt amplifiers. Use Value: 26-channel ADC supports simultaneous current/voltage/temperature sampling; BGO allows real-time fault logging to data flash during motor operation. |
Use Scenario: DIN-rail mounted digital I/O expansion module with isolated inputs/outputs and CAN/UART backhaul. IC Role / Device Role / Timing Role: Local intelligence hub managing opto-isolated I/O state polling, debounce, and protocol translation. Use Value: 64 GPIO pins with 6 V-tolerant open-drain outputs drive industrial loads directly; -40°C to +105°C rating ensures reliability in cabinet environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101LKAFB#X0 | No data flash (0 KB); identical core, peripherals, and package | Not suitable for applications requiring non-volatile parameter storage or firmware updates | Select when data retention is handled externally or not required |
| R5F100LLAFB#X0 | Same 384 KB flash/8 KB data flash/24 KB RAM, but 64-pin LQFP (0.65-mm pitch) instead of LFQFP (0.5-mm pitch) | Requires PCB layout change due to larger pad pitch and footprint; same thermal and electrical specs | Choose for legacy LQFP-64 designs or where finer-pitch assembly is unavailable |
Compared with R5F100LKAFB#X0, R5F101LKAFB#X0 removes data flash to reduce cost and die size but retains full functional compatibility for read-only firmware use, while R5F100LLAFB#X0 offers identical memory and features in a more widely supported LQFP package at the expense of board space and assembly precision.
Availability
R5F100LKAFB#X0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC controllers, and motor interface modules requiring stable component supply, long-term lifecycle support, and G-grade temperature compliance.
Supply support for R5F100LKAFB#X0 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 automotive, industrial, and IoT markets.
The RL78/G13 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications - balancing performance, integration, and energy efficiency.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F100LKAFB#X0?
The R5F100LKAFB#X0 operates at up to 32 MHz, delivering 41 DMIPS of processing performance. Its RL78 CPU core achieves a minimum instruction execution time of 0.03125 μs under high-speed on-chip oscillator conditions, making it suitable for real-time control tasks in industrial automation and sensor fusion applications. The R5F100LKAFB#X0 maintains this performance across its full 1.6–5.5 V supply range.
Does the R5F100LKAFB#X0 include data flash memory, and what are its endurance specifications?
Yes, the R5F100LKAFB#X0 integrates 8 KB of on-chip data flash memory rated for 1,000,000 write/erase cycles (typical) with background operation (BGO) support. Rewrites can be performed at VDD = 1.8–5.5 V, enabling reliable parameter storage and firmware updates without halting application execution. This capability is confirmed in the R01DS0131EJ0380 datasheet section 1.1 Features.
What package type and pin count does the R5F100LKAFB#X0 use, and is it RoHS-compliant?
The R5F100LKAFB#X0 uses a 64-pin LFQFP package (10 × 10 mm, 0.5-mm pitch) with lead-free, RoHS-compliant construction. The "FB" suffix in the part number explicitly denotes the LFQFP-64 variant, and the "#X0" indicates embossed tape packaging. This package is designed for industrial reflow profiles and supports fine-pitch surface-mount assembly.
What is the operating temperature range for the R5F100LKAFB#X0, and how is it indicated in the part number?
The R5F100LKAFB#X0 is rated for -40°C to +105°C operation, designated by the "G" grade in its family coding - confirmed by Renesas' part numbering scheme where "G" specifies industrial temperature range. This makes the R5F100LKAFB#X0 suitable for demanding environments such as factory floor controllers, outdoor metering, and under-hood automotive auxiliary systems.
Which communication interfaces are integrated into the R5F100LKAFB#X0, and how many instances does it support?
The R5F100LKAFB#X0 integrates UART (up to 4 channels, LIN-capable), simplified SPI (CSI, up to 8 channels), and I²C/Simplified I²C (up to 10 channels). These interfaces are fully configurable per pin and support concurrent operation - for example, UART0 can handle debug traffic while CSI0 manages sensor data and I²C1 communicates with EEPROM or display drivers. All are documented in the R01DS0131EJ0380 Rev.3.80 datasheet.
R5F100LKAFB#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 24K 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:
R5F100LKAFB#X0 FAQ
1.How can I place an order for R5F100LKAFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100LKAFB#X0 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 R5F100LKAFB#X0 reliable?
The price and inventory of R5F100LKAFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100LKAFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F100LKAFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100LKAFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100LKAFB#X0?
R5F100LKAFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100LKAFB#X0 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 R5F100LKAFB#X0?
For technical support, including R5F100LKAFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100LKAFB#X0 requirements.
6.How does Aetrix verify that R5F100LKAFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100LKAFB#X0 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 R5F100LKAFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F100LKAFB#X0?
All R5F100LKAFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100LKAFB#X0, 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 R5F100LKAFB#X0 part is unused and in its original packaging.
Return procedure for R5F100LKAFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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