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Renesas R5F100LKAFA#X0
- Part No.:
- R5F100LKAFA#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F100LKAFA#X0.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,933
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Product details
Overview
R5F100LKAFA#X0 from Renesas is a 64-pin LQFP-0.65mm MCU in the RL78/G13 family, featuring 384 KB flash, 8 KB data flash, 24 KB RAM, 32 MHz operation (41 DMIPS), and ultra-low-power modes (66 μA/MHz active, 0.57 μA RTC+LVD). It targets battery-powered industrial control, sensor nodes, and smart appliances requiring mixed-signal integration and long runtime.
For engineers reviewing the R5F100LKAFA#X0 datasheet, R5F100LKAFA#X0 pinout, R5F100LKAFA#X0 application, or R5F100LKAFA#X0 equivalent, key selection criteria include its 64-pin LQFP package, integrated 10-bit ADC (26 channels), real-time clock with calendar, LIN-capable UARTs, and support for self-programming with boot swap-critical for field-upgradable embedded systems.
Technical Context
The R5F100LKAFA#X0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz). It integrates dual-clock domains: high-speed on-chip oscillator (±1.0% accuracy, 1–32 MHz selectable) and dedicated low-speed oscillator for watchdog and RTC.
Its peripheral set includes up to 16× 16-bit timers, 3–10× I²C/Simplified I²C channels, 2–4× UART/LIN interfaces, 2–8× CSI/SPI channels, and DMA controller with 4 channels-enabling concurrent sensor acquisition, serial communication, and background data flash rewriting via BGO.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Clock | 32 MHz (41 DMIPS); supports 1–32 MHz programmable on-chip oscillator (±1.0%) |
| Memory | 384 KB code flash (1 KB blocks), 8 KB data flash (1M rewrite cycles), 24 KB RAM |
| Power Modes | HALT (0.23 μA), STOP (0.57 μA w/ RTC+LVD), SNOOZE (low-latency wake) |
| Analog | 10-bit ADC with 26 input channels, internal 1.45 V reference, and temperature sensor |
| Timers | 16× 16-bit timers, 1× 12-bit interval timer, 1× RTC (99-year calendar + alarm + correction) |
| Serial Interfaces | 3–10× I²C/Simplified I²C, 2–4× UART/LIN, 2–8× CSI/SPI |
Pinout & Package
Package: 64-pin LQFP (12 × 12 mm, 0.65-mm pitch), RoHS-compliant, operating ambient temperature −40°C to +85°C (A-grade).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD pins (Pins 1, 64) and multiple VSS (Pins 2, 3, 63) enable low-noise analog/digital separation |
| P00–P07, P10–P17, P20–P27, etc. | Multi-function GPIO | Up to 52 programmable I/O ports with N-ch open-drain, pull-up, TTL buffer, and 1.8/2.5/3 V interface support |
| P10/P11 | SCK00/SI00/RxD0/TOOLRxD/SDA00 | Shared SPI clock/input, UART receive, debug RX, and I²C data-enables shared debug/comm lines |
| P20/P21 | ANI0/AVREFP, ANI1/AVREFM | Dedicated ADC inputs with independent analog reference pins for precision measurement |
| XT1/XT2 | Crystal oscillator terminals | Supports 32.768 kHz crystal for RTC; internal oscillator eliminates need for external crystal in many cases |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.57 μA in STOP mode with RTC + LVD active-extends battery life in always-on sensor nodes |
| Background data flash rewrite | BGO allows full CPU execution from code flash while updating 8 KB data flash-enables seamless firmware parameter updates |
| Integrated LIN transceiver support | UART peripherals include LIN bus protocol handling (break detection, sync, PID)-reduces external component count in automotive body electronics |
| On-chip debug & security | Firmware protection via block erase prohibition and flash shield window-prevents unauthorized readout of critical IP |
| Temperature sensor & reference | Calibrated on-die temperature sensor + 1.45 V internal reference-eliminates external components for thermal monitoring and ADC calibration |
Applications
| Smart Home Thermostat | Industrial Sensor Node |
|---|---|
Use Scenario: Battery-powered wall-mounted thermostat with display, ambient/temp/humidity sensing, and wireless connectivity. IC Role / Device Role / Timing Role: Main system controller managing sensor reads, UI updates, RF module handshaking, and RTC-based scheduling. Use Value: 0.57 μA STOP mode extends 2xAA battery life beyond 5 years; integrated ADC and temp sensor reduce BOM cost by 2 components. | Use Scenario: DIN-rail mounted environmental monitor logging temperature, pressure, and CO₂ in factory HVAC ducts. IC Role / Device Role / Timing Role: Data acquisition engine with multi-channel ADC sampling, timestamping via RTC calendar, and Modbus RTU over UART. Use Value: 26-channel ADC supports simultaneous sensor inputs; BGO enables logging to data flash without interrupting acquisition loop. |
| White Goods Control Board | Medical Portable Monitor |
Use Scenario: Washing machine main control board managing motor drive, water valves, user interface, and safety interlocks. IC Role / Device Role / Timing Role: Real-time motor timing controller with PWM generation, fault monitoring (LVD), and appliance state management. Use Value: HALT/STOP modes cut standby power below 1 mW; on-chip LVD provides configurable voltage supervision for brown-out protection. | Use Scenario: Handheld pulse oximeter requiring low-power operation, analog front-end signal conditioning, and Bluetooth LE data transmission. IC Role / Device Role / Timing Role: Signal processor interfacing photodiode ADC, driving OLED display, and managing BLE UART bridge. Use Value: 10-bit ADC with internal reference ensures consistent SpO₂ calculation accuracy across battery voltage range (1.6–5.5 V). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101LKAFA#X0 | No data flash memory (0 KB); identical core, peripherals, and package | Not suitable where non-volatile parameter storage or firmware update staging is required | Select when only code flash persistence is needed and data logging is handled externally |
| RL78/G14 R5F104MLAFA#X0 | Higher performance (48 MHz, 64 KB RAM), added USB interface, larger flash (512 KB) | Targets USB-connected devices; higher power consumption invalidates ultra-low-power use cases | Choose when USB device capability or >24 KB RAM is mandatory; not drop-in compatible due to pinout changes |
Compared with R5F100LKAFA#X0, R5F101LKAFA#X0 removes data flash but retains identical footprint and real-time features-ideal for cost-sensitive fixed-function designs-while R5F104MLAFA#X0 adds USB and RAM at the expense of power efficiency and pin compatibility.
Availability
R5F100LKAFA#X0 is available at Aetrix Electronics and suitable for industrial automation, smart appliance control, and battery-powered sensor networks requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for R5F100LKAFA#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 Corporation 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 general-purpose embedded applications demanding high integration and robust peripheral sets.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F100LKAFA#X0?
The R5F100LKAFA#X0 operates at up to 32 MHz with a measured performance of 41 DMIPS. Its RL78 CPU core achieves this through a 3-stage pipeline and optimized instruction set, supporting real-time deterministic execution for control loops and sensor processing. The high-accuracy on-chip oscillator (±1.0% over −20°C to +85°C) eliminates external crystal dependency in most applications.
Does the R5F100LKAFA#X0 include data flash memory, and what is its endurance specification?
Yes, the R5F100LKAFA#X0 includes 8 KB of on-chip data flash memory rated for 1,000,000 write/erase cycles (typical) at VDD = 1.8–5.5 V. It supports background operation (BGO), allowing program execution from code flash during data flash rewrites-a critical feature for reliable firmware parameter updates in deployed R5F100LKAFA#X0 systems.
What low-power modes are supported by the R5F100LKAFA#X0, and what is the lowest current draw achievable?
The R5F100LKAFA#X0 supports HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it draws just 0.57 μA (typical) at VDD = 3.0 V and TA = 25°C. This ultra-low quiescent current enables multi-year battery operation in metering and remote sensing applications using the R5F100LKAFA#X0.
Can the R5F100LKAFA#X0 perform ADC conversions while running from low-power modes?
Yes-the R5F100LKAFA#X0 supports ADC operation in HALT mode and certain STOP sub-modes. Its 10-bit ADC can sample up to 26 analog inputs with internal 1.45 V reference and integrated temperature sensor, enabling continuous environmental monitoring without full CPU wake-up, preserving energy efficiency in R5F100LKAFA#X0-based designs.
Is the R5F100LKAFA#X0 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 R5F100LKAFA#X0, R5F100LLAFA#X0, and R5F101LKAFA#X0-share identical pinouts and electrical characteristics. This enables hardware reuse across memory variants and simplifies design migration within the RL78/G13 family using the R5F100LKAFA#X0 footprint.
R5F100LKAFA#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:
R5F100LKAFA#X0 FAQ
1.How can I place an order for R5F100LKAFA#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100LKAFA#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 R5F100LKAFA#X0 reliable?
The price and inventory of R5F100LKAFA#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100LKAFA#X0 is usually 5 days.
3.What payment methods are accepted for R5F100LKAFA#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100LKAFA#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100LKAFA#X0?
R5F100LKAFA#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100LKAFA#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 R5F100LKAFA#X0?
For technical support, including R5F100LKAFA#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100LKAFA#X0 requirements.
6.How does Aetrix verify that R5F100LKAFA#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100LKAFA#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 R5F100LKAFA#X0 meets industry standards.
7.What is the process for return or replacement of R5F100LKAFA#X0?
All R5F100LKAFA#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100LKAFA#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 R5F100LKAFA#X0 part is unused and in its original packaging.
Return procedure for R5F100LKAFA#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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