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Renesas R5F101LKAFB#X0
- Part No.:
- R5F101LKAFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LKAFB#X0.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,103
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Product details
Overview
R5F101LKAFB#X0 from Renesas is a 64-pin LFQFP (0.5 mm pitch), 384 KB flash, 8 KB data flash, 24 KB RAM RL78/G13 16-bit microcontroller operating from 1.6–5.5 V, delivering 41 DMIPS at 32 MHz with ultra-low-power HALT/STOP/SNOOZE modes - deployed in battery-powered industrial sensors and smart metering interfaces.
For engineers reviewing the R5F101LKAFB#X0 datasheet, R5F101LKAFB#X0 pinout, R5F101LKAFB#X0 application, or R5F101LKAFB#X0 equivalent, key selection criteria include its 64-pin LFQFP-0.5mm package, absence of on-chip data flash (R5F101x series), RTC + LVD support, and 10-bit ADC with up to 26 channels for embedded control systems requiring long-life power budgets.
Technical Context
The R5F101LKAFB#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz ultra-low-speed mode). It integrates a 12-bit interval timer, real-time clock with calendar/alarm/correction, and watchdog timer with dedicated low-speed oscillator.
It features dual serial interface sets: up to 4 UART/LIN channels, 3–10 I²C/Simplified I²C channels, and 2–8 CSI (SPI-compatible) channels; plus an 8/10-bit A/D converter with internal 1.45 V reference and temperature sensor, all operating across –40°C to +85°C ambient range (industrial-grade D suffix).
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 real-time control loop execution |
| Flash Memory | 384 KB code flash - supports self-programming with boot swap and flash shield window |
| Data Flash | None - R5F101x series excludes on-chip data flash (vs. R5F100x) |
| RAM | 24 KB on-chip RAM - includes dedicated areas for flash library operation (start address F7F00H) |
| ADC Resolution & Channels | 10-bit resolution, up to 26 analog inputs - enables multi-sensor monitoring without external mux |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA), SNOOZE - extends battery life in intermittent wake-up systems |
Pinout & Package
Package: 64-pin LFQFP, 10 × 10 mm body, 0.5 mm pitch, exposed pad (PLQP0064KF-A footprint).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core/peripheral rail decoupling in noise-sensitive environments |
| P00–P07, P10–P17, P20–P27, etc. | General-purpose I/O ports | Up to 59 programmable I/Os with N-ch open-drain, TTL input buffer, and pull-up options; supports 1.8/2.5/3.0 V logic interfacing |
| P10/P11 | SCK00/SI00/RxD0/TOOLRxD/SDA00 | Multi-function pins enabling SPI master/slave, UART, LIN, and I²C communication on shared hardware resources |
| P20/P21 | ANI0/AVREFP, ANI1/AVREFM | Analog input channels with dedicated reference voltage pins - enable ratiometric sensor measurements with minimal external components |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD circuits for robust power-on sequencing |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.57 μA STOP mode current enables >10-year battery life in metering applications with daily RTC wake-up |
| Real-time clock (RTC) | Full calendar (99 years), alarm, and clock correction - eliminates need for external RTC IC in time-stamped logging |
| Background data flash rewrite | Not applicable - R5F101LKAFB#X0 lacks on-chip data flash; uses code flash for parameter storage with BGO unavailable |
| On-chip debug interface | FULLY SUPPORTED via single-wire SWD - enables in-system programming and real-time trace without JTAG header |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC - accelerates PID control and sensor linearization |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Residential electricity/water/gas meter with pulse counting, tamper detection, and daily consumption logging. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, RTC timestamping, optical/IR communication, and secure flash updates. Use Value: 384 KB flash stores firmware + encryption keys; STOP-mode current <0.6 μA enables 10+ year CR2032 battery life between readings. |
Use Scenario: Wireless vibration/temperature/humidity node in predictive maintenance systems with local edge processing. IC Role / Device Role / Timing Role: Signal acquisition hub aggregating analog/digital sensor data, performing FFT preprocessing, and scheduling BLE/Wi-Fi transmission bursts. Use Value: 26-channel 10-bit ADC captures multi-axis sensor data; SNOOZE mode reduces average current during sleep while retaining RAM and RTC state. |
| Home Appliance Control | Building Automation Panel |
Use Scenario: Washing machine main board controlling motor drivers, water valves, display, and user interface. IC Role / Device Role / Timing Role: Central MCU coordinating PWM motor control, touch-key scanning, buzzer output, and fault-safe shutdown sequences. Use Value: On-chip key interrupt and clock output/buzzer controller eliminate discrete timing components; 59 GPIOs simplify PCB routing for mixed-signal I/O. |
Use Scenario: HVAC zone controller with temperature setpoint adjustment, damper actuation, and Modbus RTU communication. IC Role / Device Role / Timing Role: Fieldbus gateway handling RS-485 physical layer, protocol stack, and analog sensor conditioning for environmental feedback. Use Value: Dual UART + LIN support enables native Modbus and automotive-style diagnostics; LVD interrupt at 14 selectable thresholds ensures graceful brownout response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LKAFB#X0 | Includes 8 KB data flash; same 384 KB code flash, 24 KB RAM, identical pinout and peripherals | Required where EEPROM-like nonvolatile parameter storage is needed without external SPI flash | Select when field-updatable calibration tables or configuration data must reside on-chip with background rewrite capability |
| R5F101LJAFB#X0 | Same R5F101x series, but 256 KB code flash, 20 KB RAM, 52-pin LQFP (0.65 mm pitch) | Lower memory and I/O count; suitable for cost-constrained designs with reduced peripheral requirements | Choose for simpler control tasks where 384 KB flash and 64-pin I/O expansion are unnecessary - saves PCB area and BOM cost |
Compared with R5F100LKAFB#X0, this part trades data flash persistence for lower cost and identical low-power performance; versus R5F101LJAFB#X0, it provides 128 KB more flash and 4 KB more RAM in a larger, higher-I/O package - critical for feature-rich edge nodes.
Availability
R5F101LKAFB#X0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, and home appliance control requiring stable component supply, long-term lifecycle assurance, and industrial-temperature grade reliability.
Supply support for R5F101LKAFB#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 demanding high integration and long-term supply stability.
FAQ
Does R5F101LKAFB#X0 include on-chip data flash memory?
No, R5F101LKAFB#X0 does not include on-chip data flash memory. It belongs to the R5F101x series, which omits data flash to reduce cost and die size. The R5F100x series (e.g., R5F100LKAFB#X0) provides 8 KB of data flash. Code flash remains fully functional for program storage and parameter retention using flash shield window protection.
What is the operating temperature range for R5F101LKAFB#X0?
R5F101LKAFB#X0 is rated for industrial operation from –40°C to +85°C (D-grade). This is confirmed by its part number suffix "D" in the RL78/G13 family coding scheme and validated in the official datasheet's ambient temperature specification table.
Which package type and footprint does R5F101LKAFB#X0 use?
R5F101LKAFB#X0 uses a 64-pin LFQFP package with 0.5 mm pitch and 10 × 10 mm body size (RENESAS code PLQP0064KF-A). The #X0 suffix indicates embossed tape packaging - compatible with automated SMT placement equipment using standard LFQFP-64 land patterns.
Can R5F101LKAFB#X0 operate from a 1.8 V supply?
Yes, R5F101LKAFB#X0 supports single-supply operation from 1.6 V to 5.5 V. At 1.8 V, it maintains full functionality including 32 MHz operation (with high-speed on-chip oscillator), ADC conversion, and RTC operation - verified in the Absolute Maximum Ratings and DC Characteristics sections of the R01DS0131EJ0380 datasheet.
How many UART/LIN channels does R5F101LKAFB#X0 support?
R5F101LKAFB#X0 supports up to 4 UART/LIN channels. This is confirmed in the "Serial interface" section of the datasheet and aligns with its 64-pin package variant, which allocates sufficient pins for multiple full-duplex UART interfaces with LIN bus physical layer compatibility.
R5F101LKAFB#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:
- -
- 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:
R5F101LKAFB#X0 FAQ
1.How can I place an order for R5F101LKAFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LKAFB#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 R5F101LKAFB#X0 reliable?
The price and inventory of R5F101LKAFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LKAFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F101LKAFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LKAFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LKAFB#X0?
R5F101LKAFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LKAFB#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 R5F101LKAFB#X0?
For technical support, including R5F101LKAFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LKAFB#X0 requirements.
6.How does Aetrix verify that R5F101LKAFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101LKAFB#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 R5F101LKAFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F101LKAFB#X0?
All R5F101LKAFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LKAFB#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 R5F101LKAFB#X0 part is unused and in its original packaging.
Return procedure for R5F101LKAFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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