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Renesas R5F100LKDFA#X0
- Part No.:
- R5F100LKDFA#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F100LKDFA#X0.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,857
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Product details
Overview
R5F100LKDFA#X0 from Renesas is a 64-pin LQFP-0.65mm, 128 KB flash, 8 KB data flash, 12 KB RAM RL78/G13 16-bit microcontroller operating from 1.6 V to 5.5 V, delivering 41 DMIPS at 32 MHz with ultra-low-power modes (66 μA/MHz active, 0.57 μA RTC+LVD), used in industrial sensor nodes and battery-powered control modules.
For engineers reviewing the R5F100LKDFA#X0 datasheet, R5F100LKDFA#X0 pinout, R5F100LKDFA#X0 application, or R5F100LKDFA#X0 equivalent, key selection criteria include its 64-pin LQFP package, integrated RTC + LVD, 10-bit 26-channel ADC, dual UART/LIN support, and industrial-grade −40°C to +85°C operation with data flash self-programming capability.
Technical Context
The R5F100LKDFA#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed oscillator) to 30.5 μs (32.768 kHz subsystem clock), and features an address space of 1 MB with four register banks of eight 8-bit registers each.
It integrates a 16-bit timer array (16 channels), real-time clock with calendar/alarm/correction, watchdog timer, DMA controller (4 channels), 16×16/32÷32 multiplier/divider, and serial interfaces including CSI (SPI-compatible), UART/LIN (2 channels), and I²C (up to 10 channels).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Max Operating Frequency | 32 MHz - delivers 41 DMIPS for deterministic real-time control |
| Flash Memory | 128 KB code flash - supports block erase (1 KB), security lock, and boot swap |
| Data Flash | 8 KB - enables background rewriting (BGO) at VDD = 1.8–5.5 V, 1M write cycles |
| RAM | 12 KB on-chip SRAM - includes dedicated flash library RAM area starting at F7F00H |
| ADC | 10-bit resolution, 26 input channels, internal 1.45 V reference and temperature sensor |
| Supply Voltage Range | 1.6 V to 5.5 V - supports direct connection to Li-ion, 3.3 V, and 5 V rails |
| Operating Temperature | −40°C to +85°C - qualified for industrial applications (D-grade) |
Pinout & Package
Package: 64-pin LQFP (12 × 12 mm, 0.65-mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSS | Ground | Dedicated digital ground pin - must be connected to PCB ground plane for noise immunity |
| VDD | Power Supply | Main supply input (1.6–5.5 V) - requires local 100 nF ceramic decoupling per VDD pin |
| P00–P07 | General-purpose I/O | 8-bit port with N-ch open-drain option, TTL input buffer, and programmable pull-up |
| P10/P11 | Serial Interface | SCK00/SCL00 and SI00/RxD0 - configurable as CSI, I²C, or UART channel 0 |
| P20–P27 | Analog Input | ANI0–ANI7 - 8 of 26 ADC channels, also support AVREFP/AVREFM reference inputs |
| RTC_IN | Real-time Clock Input | 32.768 kHz crystal or external clock input - enables calendar mode with alarm and correction |
| RESET | Reset Input | Active-low reset with internal POR and selectable LVD interrupt/reset (14 levels) |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT/STOP/SNOOZE modes | Reduces active current to 66 μA/MHz; retains RTC + LVD in STOP at 0.57 μA |
| On-chip high-accuracy oscillator | ±1.0% tolerance (1.8–5.5 V, −20 to +85°C) eliminates need for external crystal in cost-sensitive designs |
| Data flash BGO operation | Enables concurrent program execution and data logging without CPU stall or system freeze |
| LIN bus support in UART peripheral | Hardware LIN 2.2/SAE J2602 compliance - simplifies automotive body electronics integration |
| Different-potential interface capability | Allows safe I/O interfacing with 1.8 V, 2.5 V, or 3 V logic devices without level shifters |
| Flash shield window & block protection | Prevents unauthorized read/write of critical firmware sections - meets basic functional safety requirements |
Applications
| Industrial Sensor Node | Smart HVAC Controller |
|---|---|
|
Use Scenario: Battery-powered wireless temperature/humidity sensor with local data logging and BLE gateway interface. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, RTC-timestamped data storage to data flash, and low-power wake-up scheduling. Use Value: 0.57 μA STOP mode extends 2xAA battery life beyond 5 years; 8 KB data flash enables 10,000+ timestamped readings without external memory. |
Use Scenario: Wall-mounted HVAC zone controller with fan speed regulation, damper actuation, and communication to building management system. IC Role / Device Role / Timing Role: Real-time motor control hub coordinating PWM outputs, analog sensor feedback, and Modbus RTU over UART. Use Value: 16-channel 16-bit timer array provides precise 3-phase fan PWM; LIN-capable UART simplifies integration with legacy HVAC actuators. |
| Programmable Power Meter | Factory Automation I/O Module |
|
Use Scenario: DIN-rail mounted energy meter with voltage/current sensing, kWh calculation, and RS-485 communication. IC Role / Device Role / Timing Role: Signal acquisition and computation engine performing RMS, harmonics, and tariff-based billing using hardware multiplier/accumulator. Use Value: 16×16 signed multiply + 32-bit accumulate enables fast floating-point emulation; 26-channel ADC supports simultaneous voltage, current, and temperature sampling. |
Use Scenario: Modular digital input/output expansion unit for PLC systems with isolation, diagnostics, and hot-swap support. IC Role / Device Role / Timing Role: Local intelligence layer handling debounce, edge detection, LED status reporting, and SPI-based backplane communication. Use Value: On-chip key interrupt and programmable N-ch open-drain I/O simplify discrete input conditioning; 4-channel DMA offloads SPI transfers from CPU during high-speed I/O polling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LJDFA#X0 | Same 64-pin LQFP package, 96 KB flash, 8 KB data flash, 8 KB RAM - lower memory and RAM capacity | Suitable for simpler control tasks without extensive data logging or complex UI stacks | Select when firmware footprint < 96 KB and RAM usage ≤ 8 KB; reduces BOM cost by ~12% |
| R5F100LLDFA#X0 | Same 64-pin LQFP package, 512 KB flash, 8 KB data flash, 32 KB RAM - higher memory and RAM capacity | Required for OTA firmware updates, large protocol stacks (e.g., MQTT+TLS), or multi-sensor fusion algorithms | Select when future firmware scalability or real-time OS (e.g., FreeRTOS) with >20 KB heap is needed |
Compared with R5F100LJDFA#X0 and R5F100LLDFA#X0, the R5F100LKDFA#X0 offers balanced memory (128 KB flash / 12 KB RAM) ideal for industrial control with moderate data logging and deterministic real-time response - avoiding over-provisioning while ensuring headroom for field upgrades.
Availability
R5F100LKDFA#X0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC controllers, and programmable power meters requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for R5F100LKDFA#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 true low-power 16-bit MCUs optimized for cost-sensitive industrial and consumer control applications, emphasizing energy efficiency, integrated peripherals, and simplified development.
FAQ
What is the maximum clock frequency and corresponding performance of the R5F100LKDFA#X0?
The R5F100LKDFA#X0 operates up to 32 MHz using its high-speed on-chip oscillator, achieving 41 DMIPS (Dhrystone 2.1). Its minimum instruction execution time is 0.03125 μs under these conditions, enabling deterministic real-time response for motor control and sensor fusion tasks within the R5F100LKDFA#X0's architecture.
Does the R5F100LKDFA#X0 support in-system programming and secure firmware updates?
Yes, the R5F100LKDFA#X0 supports full in-system programming via on-chip debug interface and includes flash shield window functionality to restrict access to designated memory regions. It also implements boot swap capability, allowing validated firmware images to be loaded and activated without erasing active code - a key feature for robust R5F100LKDFA#X0 field updates.
How many analog input channels does the R5F100LKDFA#X0 ADC support, and what reference options are available?
The R5F100LKDFA#X0 integrates a 10-bit successive-approximation ADC with 26 configurable analog input channels. It supports external reference inputs (AVREFP/AVREFM) and includes an internal 1.45 V reference voltage source. The temperature sensor is accessible via ANI25, and both reference and sensor functions are usable only in HS (high-speed main) mode per the R5F100LKDFA#X0 datasheet.
What low-power modes are available on the R5F100LKDFA#X0, and what is the lowest achievable current draw?
The R5F100LKDFA#X0 offers HALT, STOP, and SNOOZE low-power modes. In STOP mode with only RTC and LVD enabled, it draws just 0.57 μA at VDD = 3.0 V and TA = 25°C. This ultra-low quiescent current enables multi-year battery operation in remote monitoring applications using the R5F100LKDFA#X0 as the primary controller.
Is the R5F100LKDFA#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 (e.g., R5F100LJDFA#X0, R5F100LLDFA#X0) share identical pinouts and electrical characteristics. This allows direct substitution within the same footprint for memory scaling - the R5F100LKDFA#X0 can replace lower-flash variants without PCB changes, provided firmware fits the target memory map.
R5F100LKDFA#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:
R5F100LKDFA#X0 FAQ
1.How can I place an order for R5F100LKDFA#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100LKDFA#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 R5F100LKDFA#X0 reliable?
The price and inventory of R5F100LKDFA#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100LKDFA#X0 is usually 5 days.
3.What payment methods are accepted for R5F100LKDFA#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100LKDFA#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100LKDFA#X0?
R5F100LKDFA#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100LKDFA#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 R5F100LKDFA#X0?
For technical support, including R5F100LKDFA#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100LKDFA#X0 requirements.
6.How does Aetrix verify that R5F100LKDFA#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100LKDFA#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 R5F100LKDFA#X0 meets industry standards.
7.What is the process for return or replacement of R5F100LKDFA#X0?
All R5F100LKDFA#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100LKDFA#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 R5F100LKDFA#X0 part is unused and in its original packaging.
Return procedure for R5F100LKDFA#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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