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Renesas R5F101LKDFA#V0
- Part No.:
- R5F101LKDFA#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LKDFA#V0.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,283
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Product details
Overview
R5F101LKDFA#V0 from Renesas is a 64-pin LQFP-0.65mm, 128 KB flash, 12 KB RAM, RL78/G13 16-bit microcontroller with no data flash, operating at 1.6–5.5 V and rated for -40°C to +85°C industrial use. It delivers 41 DMIPS at 32 MHz, features ultra-low power consumption (66 μA/MHz active, 0.57 μA RTC+LVD), and integrates 16-bit timers, 10-bit ADC (26 channels), UART/SPI/I²C interfaces, and real-time clock - deployed in smart metering, industrial HMI, and battery-powered sensor nodes.
For engineers reviewing the R5F101LKDFA#V0 datasheet, R5F101LKDFA#V0 pinout, R5F101LKDFA#V0 application, or R5F101LKDFA#V0 equivalent, key selection criteria include its 64-pin LQFP package, absence of on-chip data flash, industrial temperature rating, and support for background data flash programming via external library - critical for firmware-over-the-air updates and secure field reprogramming.
Technical Context
The R5F101LKDFA#V0 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 low-power mode). Its memory subsystem includes 128 KB code flash (1 KB block size), 12 KB SRAM, and no embedded data flash - requiring external flash or software-managed EEPROM emulation for nonvolatile parameter storage.
Peripherals are tightly integrated for deterministic real-time control: dual DMA channels (2-clock transfers between SFR and RAM), hardware multiplier/divider, 16-channel 16-bit timer array, calendar-capable RTC with alarm/correction, and 10-bit ADC with internal 1.45 V reference and temperature sensor - all operable across the full 1.6–5.5 V supply range without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing and low-power interrupt latency. |
| Max Operating Frequency | 32 MHz; delivers 41 DMIPS performance while maintaining 66 μA/MHz active current efficiency. |
| Flash Memory | 128 KB code flash, 1 KB erase blocks; supports self-programming with boot swap and flash shield window. |
| RAM Size | 12 KB on-chip SRAM; sufficient for real-time control stacks, communication buffers, and RTOS operation. |
| ADC Resolution & Channels | 10-bit SAR ADC with up to 26 analog inputs and internal 1.45 V reference; eliminates need for external voltage reference in precision sensing. |
| Operating Voltage | 1.6 V to 5.5 V single supply; enables direct interface with 1.8 V, 3.3 V, and 5 V peripherals without level shifters. |
| Temperature Range | -40°C to +85°C (industrial grade); qualified for deployment in factory automation and outdoor metering environments. |
Pinout & Package
Package: 64-pin LQFP (12 × 12 mm, 0.65-mm pitch), RoHS-compliant, tray-packaged (#V0 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Primary SPI clock / I²C clock | Shared function pin supporting synchronous serial communication or two-wire bus; configurable per peripheral enable. |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI input / UART receive / debug RX / I²C data | Multi-function pin enabling flexible interface routing; TOOLRxD supports on-chip debug without dedicated debug header. |
| P20/ANI0/AVREFP | Analog input 0 / ADC reference positive | Enables external reference or single-ended analog sensing; AVREFP sets ADC full-scale range when used as reference. |
| P21/ANI1/AVREFM | Analog input 1 / ADC reference negative | Paired with P20 to define differential ADC range or serve as ground-referenced analog input. |
| P50/INTP0/TOOLnTRST | External interrupt 0 / JTAG reset | Dual-role pin supports both application-level edge-triggered interrupts and debug interface reset signaling. |
| VDD, VSS | Power supply and ground | Multiple dedicated VDD/VSS pairs ensure stable core and I/O rail decoupling; supports noise-sensitive analog operation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power modes | HALT (0.23 μA), STOP (0.57 μA with RTC+LVD), and SNOOZE modes enable multi-year battery life in sensor endpoints. |
| On-chip oscillators | High-accuracy ±1.0% 32 MHz main oscillator + 32.768 kHz sub-oscillator; eliminates external crystals in cost-sensitive designs. |
| Real-time clock (RTC) | Calendar function (99-year range), alarm, and auto-correction; operates independently in STOP mode for timekeeping during sleep. |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC operations accelerate motor control and digital filtering. |
| Peripheral channel independence | UART, CSI (SPI), and I²C share no common registers; allows concurrent operation without software arbitration overhead. |
| Secure flash protection | Block-wise erase/write prohibition and flash shield window prevent unauthorized firmware access or modification. |
Applications
| Smart Energy Metering | Industrial HMI Panels |
|---|---|
|
Use Scenario: Residential and commercial electricity/water/gas meters requiring long-life battery operation, tamper detection, and metrology-grade ADC accuracy. IC Role / Device Role / Timing Role: Main system controller executing metrology algorithms, managing LCD/LED displays, handling pulse counting, and communicating via RS-485 or PLC. Use Value: Integrated 10-bit ADC with internal reference and temperature sensor enables accurate sensor compensation; STOP-mode RTC maintains billing timestamps during power loss. |
Use Scenario: Local operator interfaces in PLC cabinets, HVAC controllers, and packaging machines needing responsive touch feedback and local data logging. IC Role / Device Role / Timing Role: UI processor managing button/key interrupts, driving segmented or dot-matrix LCDs, buffering serial commands, and coordinating with host PLC over UART/RS-485. Use Value: 26-channel ADC monitors panel temperature, supply voltage, and sensor inputs; 12 KB RAM accommodates display frame buffers and command queues. |
| Battery-Powered Sensor Nodes | White Goods Motor Control |
|
Use Scenario: Wireless environmental sensors (temperature/humidity/pressure) deployed in remote locations with 10+ year battery life requirements. IC Role / Device Role / Timing Role: Sensor hub aggregating analog/digital readings, performing basic preprocessing, and triggering low-power wireless transceivers (e.g., Sub-GHz or BLE). Use Value: 0.57 μA STOP mode with RTC ensures precise wake-up scheduling; HALT mode enables sub-μA idle between measurements. |
Use Scenario: Fan, pump, and compressor control in refrigerators, washing machines, and air conditioners requiring efficient BLDC commutation and thermal monitoring. IC Role / Device Role / Timing Role: Dedicated motor controller executing trapezoidal or FOC algorithms, reading hall sensors/encoders, driving gate drivers, and monitoring overcurrent/overtemperature. Use Value: Hardware multiplier and 16-bit timers with dead-time insertion simplify real-time PWM generation; on-chip temperature sensor enables thermal derating without external ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LKDFA#V0 | Includes 8 KB data flash; identical pinout, package, and code flash size (128 KB). | Supports EEPROM-like parameter storage without external memory; suitable where field-updatable calibration or configuration is required. | Select when nonvolatile parameter retention is mandatory and external flash is undesirable. |
| R5F101LKDFB#V0 | Same core/peripherals but in 64-pin LFQFP (0.5-mm pitch); smaller footprint, higher pin density. | Preferred for space-constrained PCBs; requires updated layout but retains full software compatibility. | Choose for compact designs where board area is critical and re-layout is acceptable. |
Compared with R5F101LKDFA#V0, the R5F100LKDFA#V0 adds data flash for robust parameter storage, while the R5F101LKDFB#V0 reduces board footprint via finer-pitch packaging - both preserve identical instruction set, peripheral register map, and power profile for seamless migration.
Availability
R5F101LKDFA#V0 is available at Aetrix Electronics and suitable for smart metering, industrial HMI, and battery-powered sensor node applications requiring stable component supply, long-term industrial qualification, and Renesas' global manufacturing continuity.
Supply support for R5F101LKDFA#V0 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 family targets cost-sensitive, ultra-low-power general-purpose embedded systems - balancing performance, energy efficiency, and integration for applications where battery life, BOM reduction, and industrial reliability are paramount.
FAQ
What is the flash memory configuration of the R5F101LKDFA#V0?
The R5F101LKDFA#V0 contains 128 KB of on-chip code flash memory organized in 1 KB erasable blocks, with no embedded data flash. This configuration supports secure firmware storage and self-programming with boot swap functionality, but nonvolatile parameter storage requires external memory or software-based EEPROM emulation using code flash sectors.
Does the R5F101LKDFA#V0 support real-time clock functionality?
Yes, the R5F101LKDFA#V0 integrates a full-featured real-time clock (RTC) with calendar support (99-year range), alarm interrupt, and automatic clock correction. It operates independently in STOP mode with only RTC and LVD enabled, consuming just 0.57 μA - enabling accurate timekeeping during ultra-low-power sleep states.
What are the power supply requirements for the R5F101LKDFA#V0?
The R5F101LKDFA#V0 operates from a single 1.6 V to 5.5 V supply, supporting direct interfacing with 1.8 V, 3.3 V, and 5 V logic families. Its ultra-low power design achieves 66 μA/MHz active current and 0.57 μA in STOP mode with RTC+LVD active - making it ideal for battery-powered and energy-harvesting applications.
How many analog-to-digital converter channels does the R5F101LKDFA#V0 provide?
The R5F101LKDFA#V0 features a 10-bit successive-approximation ADC with up to 26 analog input channels. It includes an internal 1.45 V reference voltage and on-chip temperature sensor, enabling precision measurement without external reference components - critical for sensor conditioning and system health monitoring.
Is the R5F101LKDFA#V0 pin-compatible with other RL78/G13 variants?
Yes, the R5F101LKDFA#V0 shares identical pinout and package (64-pin LQFP, 0.65-mm pitch) with all other RL78/G13 devices in the same pin-count group, including R5F100LKDFA#V0 and R5F101LLDFA#V0. Firmware and hardware designs can be reused across variants differing only in flash/RAM size or data flash presence.
R5F101LKDFA#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- 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:
- -
- 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:
R5F101LKDFA#V0 FAQ
1.How can I place an order for R5F101LKDFA#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LKDFA#V0 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 R5F101LKDFA#V0 reliable?
The price and inventory of R5F101LKDFA#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LKDFA#V0 is usually 5 days.
3.What payment methods are accepted for R5F101LKDFA#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LKDFA#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LKDFA#V0?
R5F101LKDFA#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LKDFA#V0 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 R5F101LKDFA#V0?
For technical support, including R5F101LKDFA#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LKDFA#V0 requirements.
6.How does Aetrix verify that R5F101LKDFA#V0 is sourced from the original manufacturer or authorized distributors?
All R5F101LKDFA#V0 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 R5F101LKDFA#V0 meets industry standards.
7.What is the process for return or replacement of R5F101LKDFA#V0?
All R5F101LKDFA#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LKDFA#V0, 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 R5F101LKDFA#V0 part is unused and in its original packaging.
Return procedure for R5F101LKDFA#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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