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Renesas R5F100LKDFB#X0
- Part No.:
- R5F100LKDFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F100LKDFB#X0.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,913
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Product details
Overview
R5F100LKDFB#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 flash, 8 KB data flash, 24 KB RAM, 1.6–5.5 V operation, and -40°C to +105°C ambient rating. It delivers 41 DMIPS at 32 MHz and supports ultra-low-power modes including STOP (0.57 μA) and HALT for battery-powered industrial sensing and control.
For engineers reviewing the R5F100LKDFB#X0 datasheet, R5F100LKDFB#X0 pinout, R5F100LKDFB#X0 application, or R5F100LKDFB#X0 equivalent, key selection criteria include its integrated RTC with calendar/alarm, 12-bit interval timer, 10-bit 26-channel ADC with internal temperature sensor, and dual UART/LIN support for robust serial communication in space-constrained embedded systems.
Technical Context
The R5F100LKDFB#X0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). Its memory subsystem includes on-chip code flash with block erase protection, background data flash rewriting (BGO), and self-programming with boot swap capability.
Power management integrates an on-chip POR circuit, 14-level LVD with interrupt/reset options, and multiple low-power modes (HALT, STOP, SNOOZE). Peripheral integration includes up to 16 channels of 16-bit timers, real-time clock with calendar and clock correction, watchdog timer with dedicated low-speed oscillator, and flexible serial interfaces (CSI, UART/LIN, I²C) supporting mixed-voltage I/O (1.8/2.5/3 V).
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 for real-time control loop execution |
| Flash Memory | 384 KB code flash with 1 KB block size, security lock, and self-programming |
| Data Flash | 8 KB with background operation (BGO), 1M rewrite cycles, 1.8–5.5 V programming voltage |
| RAM | 24 KB on-chip RAM - sufficient for complex state machines and protocol stacks |
| ADC | 10-bit resolution, 26 analog inputs, internal 1.45 V reference and temperature sensor |
| Low-Power Modes | STOP mode draws 0.57 μA (RTC + LVD active); HALT mode draws 66 μA/MHz |
| Operating Temperature | -40°C to +105°C - qualified for industrial environments per G-grade specification |
Pinout & Package
Package: 64-pin LFQFP (10 × 10 mm, 0.5-mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains support stable 1.6–5.5 V operation with decoupling requirements |
| P00–P07, P10–P17, P20–P27, P30–P37, P40–P47, P50–P57, P60–P67, P70–P77 | General-purpose I/O ports | Up to 64 programmable pins with N-ch open-drain, TTL input, pull-up, and mixed-voltage interface capability |
| P10/SCK00/SCL00 | Serial clock / I²C clock | Shared function pin supporting CSI master/slave or I²C communication |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Serial input / UART receive / debug RX / I²C data | Multi-function pin enabling firmware update via UART, debug communication, and I²C slave operation |
| P20/ANI0/AVREFP | Analog input channel 0 / ADC reference positive | Configurable as primary ADC input or AVREFP source for precision analog measurements |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD circuits |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA current draw with RTC and LVD active - enables multi-year battery life in remote sensors |
| Background data flash rewrite | Execute program code while updating 8 KB data flash - critical for over-the-air firmware updates without interruption |
| Real-time clock with calendar | 99-year calendar, alarm, and clock correction - eliminates need for external RTC IC in time-stamped logging |
| Integrated LIN bus support | UART peripheral configurable for LIN 2.2 compliance - reduces BOM cost in automotive body electronics |
| On-chip temperature sensor | Calibrated 10-bit output referenced to internal 1.45 V - enables thermal monitoring without external components |
| DMA controller (4 channels) | 2-clock transfers between SFR and RAM - offloads CPU during high-bandwidth peripheral operations like ADC streaming |
Applications
| Industrial Sensor Node | Smart HVAC Controller |
|---|---|
Use Scenario: Battery-powered environmental monitor deployed in factory floors with temperature, humidity, and vibration sensing. IC Role / Device Role / Timing Role: Main system controller executing sensor fusion, data logging to data flash, and periodic wireless transmission via UART-to-LoRa bridge. Use Value: STOP mode (0.57 μA) extends 2xAA battery life beyond 5 years; integrated RTC enables accurate timestamping of sensor events without external timing components. | Use Scenario: Wall-mounted HVAC zone controller managing fan speed, valve position, and occupancy-based scheduling. IC Role / Device Role / Timing Role: Real-time coordinator interfacing with thermistors, relays, and IR receivers while maintaining precise 1-second scheduling via RTC calendar. Use Value: 24 KB RAM accommodates PID control loops and UI state machine; 26-channel ADC supports simultaneous multi-sensor acquisition with internal reference stability. |
| Programmable Logic Relay | Industrial Motor Drive Interface |
Use Scenario: DIN-rail mounted relay module replacing electromechanical units with configurable logic, delay, and counting functions. IC Role / Device Role / Timing Role: Deterministic sequencer using 16-bit timers and GPIO for input debouncing, output timing, and event counting with nonvolatile storage. Use Value: 384 KB flash stores user-defined ladder logic; data flash retains configuration and counter values across power cycles with 1M endurance. | Use Scenario: Compact motor drive board requiring status feedback, fault detection, and communication with host PLC via UART/LIN. IC Role / Device Role / Timing Role: Safety-critical interface processor sampling current/voltage sensors, monitoring thermal shutdown signals, and reporting diagnostics. Use Value: LVD with 14 selectable thresholds enables precise brown-out detection; 10-bit ADC with internal temperature sensor provides direct junction monitoring without external diodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101LKDFB#X0 | No data flash (0 KB); identical core, peripherals, package, and temperature grade | Suitable where firmware updates and parameter storage are handled externally or not required | Select when eliminating data flash reduces cost and simplifies qualification without sacrificing real-time performance or I/O count |
| RL78/G14 R5F104MJDFB#X0 | Higher flash (512 KB), larger RAM (32 KB), added USB 2.0 and CAN FD; same 64-pin LFQFP-0.5mm package | Required for applications needing USB device connectivity or CAN FD networking alongside legacy UART/I²C | Choose when future-proofing for USB-CDC firmware updates or CAN-based distributed control is planned, accepting higher unit cost |
Compared with R5F100LKDFB#X0, R5F101LKDFB#X0 removes data flash to lower cost and simplify secure boot, while RL78/G14 R5F104MJDFB#X0 adds USB and CAN FD at the expense of increased complexity and price-making R5F100LKDFB#X0 optimal for cost-sensitive, data-logging-capable industrial controllers without advanced connectivity needs.
Availability
R5F100LKDFB#X0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC controllers, programmable logic relays, and motor drive interfaces requiring stable component supply across extended product lifecycles.
Supply support for R5F100LKDFB#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 targets cost-sensitive, ultra-low-power general-purpose embedded applications-designed to replace legacy 8/16-bit MCUs with enhanced integration, energy efficiency, and development ecosystem support.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F100LKDFB#X0?
The R5F100LKDFB#X0 operates at up to 32 MHz, delivering 41 DMIPS of processing performance. This is achieved using the high-speed on-chip oscillator with ±1.0% accuracy across 1.8–5.5 V and -40°C to +105°C. The RL78 CPU core's 3-stage pipeline ensures deterministic execution for real-time control tasks in the R5F100LKDFB#X0.
Does the R5F100LKDFB#X0 include integrated data flash memory, and what are its key characteristics?
Yes, the R5F100LKDFB#X0 includes 8 KB of on-chip data flash memory. It supports background operation (BGO), allowing program execution from code flash while rewriting data flash. Rated for 1,000,000 write/erase cycles at 1.8–5.5 V, it enables reliable nonvolatile parameter storage and firmware updates in the R5F100LKDFB#X0 without external EEPROM.
What low-power modes does the R5F100LKDFB#X0 support, and what is the lowest achievable current consumption?
The R5F100LKDFB#X0 supports HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it consumes just 0.57 μA - verified at -40°C to +105°C. This ultra-low quiescent current makes the R5F100LKDFB#X0 ideal for battery-operated industrial monitoring devices requiring multi-year operational life.
How many analog input channels and what ADC resolution does the R5F100LKDFB#X0 provide?
The R5F100LKDFB#X0 features a 10-bit successive-approximation ADC with up to 26 analog input channels. It includes an internal 1.45 V reference voltage and a calibrated on-chip temperature sensor - both accessible via dedicated ANI pins. This ADC configuration supports precision analog measurement directly within the R5F100LKDFB#X0 without external references or sensors.
Is the R5F100LKDFB#X0 pin-compatible with other RL78/G13 variants in the same package?
Yes, the R5F100LKDFB#X0 is pin-compatible with all 64-pin LFQFP variants of the RL78/G13 family, including R5F100L*AFB, R5F100L*DFB, and R5F100L*GFB. Pin functions, power domains, and peripheral mappings are consistent across these variants - enabling hardware reuse when migrating between flash sizes, data flash inclusion, or temperature grades in the R5F100LKDFB#X0 footprint.
R5F100LKDFB#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:
R5F100LKDFB#X0 FAQ
1.How can I place an order for R5F100LKDFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100LKDFB#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 R5F100LKDFB#X0 reliable?
The price and inventory of R5F100LKDFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100LKDFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F100LKDFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100LKDFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100LKDFB#X0?
R5F100LKDFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100LKDFB#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 R5F100LKDFB#X0?
For technical support, including R5F100LKDFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100LKDFB#X0 requirements.
6.How does Aetrix verify that R5F100LKDFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100LKDFB#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 R5F100LKDFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F100LKDFB#X0?
All R5F100LKDFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100LKDFB#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 R5F100LKDFB#X0 part is unused and in its original packaging.
Return procedure for R5F100LKDFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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