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Renesas R5F101LEDFB#X0
- Part No.:
- R5F101LEDFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LEDFB#X0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,105
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Product details
Overview
R5F101LEDFB#X0 from Renesas is a 64-pin LFQFP-0.5mm-pitch 16-bit RL78/G13 microcontroller with 128 KB flash, 8 KB data flash, 12 KB RAM, and ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD). It integrates 16-bit timers, 10-bit ADC (26 channels), UART/SPI/I²C interfaces, and real-time clock for embedded control in industrial sensor nodes and battery-powered HMI.
For engineers reviewing the R5F101LEDFB#X0 datasheet, R5F101LEDFB#X0 pinout, R5F101LEDFB#X0 application, or R5F101LEDFB#X0 equivalent, key selection criteria include its 64-pin LFQFP package, absence of on-chip data flash (R5F101x series), -40°C to +85°C industrial temperature grade (D suffix), and support for SNOOZE mode wake-up via serial interface or timer events.
Technical Context
The R5F101LEDFB#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz). It uses a single 1.6–5.5 V supply and includes dedicated low-speed on-chip oscillator for watchdog and RTC operation independent of main clock.
Its peripheral set includes up to 16 channels of 16-bit timer, one 12-bit interval timer, calendar-based RTC with alarm and correction, and background operation (BGO) capable data flash rewrite - though this part lacks data flash per R5F101x designation. Serial interfaces include CSI (SPI-compatible), UART/LIN, and I²C across configurable channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 4 register banks |
| Max Operating Frequency | 32 MHz - delivers 41 DMIPS; supports dynamic clock switching |
| Flash Memory | 128 KB code flash - 1 KB block erase, security lock, self-programming with boot swap |
| RAM Size | 12 KB on-chip RAM - used for stack, variables, and flash library operations (start address FF300H) |
| Supply Voltage Range | 1.6 V to 5.5 V - enables direct connection to Li-ion, 3.3 V, or 5 V rails without regulators |
| Low-Power Modes | HALT (0.57 μA), STOP (0.94 μA), SNOOZE - RTC and LVD remain active in HALT |
| Analog Peripherals | 10-bit ADC with 26 input channels, internal 1.45 V reference, and temperature sensor |
| Package & Pin Count | LFQFP-64, 10 × 10 mm, 0.5 mm pitch - compatible with standard QFP reflow profiles |
Pinout & Package
Package: LFQFP-64, 10 × 10 mm body, 0.5 mm lead pitch, exposed pad not present. RoHS-compliant, JEDEC-standard footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O rail decoupling; supports mixed-voltage I/O |
| P10/P11/P12 | CSI0/SI00/SO00 | Hardware SPI master/slave interface with programmable clock polarity and phase |
| P30/P31 | UART0/TxD0/RxD0 | Full-duplex asynchronous serial interface with LIN bus support and noise filter |
| P14/P15 | I²C0/SDA00/SCL00 | Standard-mode (100 kHz) and fast-mode (400 kHz) I²C bus with slew-rate control |
| P20–P27 | ANI0–ANI7 | Analog inputs for 10-bit ADC; AVREFP/AVREFM pins allow external reference voltage |
| P00–P07 | Port 0 general-purpose I/O | Configurable as N-ch open-drain (6 V tolerant), TTL input, or pull-up; supports key interrupt |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to POR and LVD circuits |
| CLKP/CLKM | Crystal oscillator inputs | Supports 32.768 kHz crystal for RTC; high-accuracy internal oscillator eliminates need for external XTAL |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT mode | 0.57 μA current draw with RTC and LVD active - extends battery life in always-on sensing |
| On-chip high-accuracy oscillator | +/-1.0% accuracy over -20°C to +85°C at 32 MHz - eliminates external crystal for cost-sensitive designs |
| Real-time clock with calendar | 99-year calendar, alarm, and auto-correction - enables time-stamped logging without host MCU intervention |
| Multi-channel serial interface | Up to 8 CSI, 4 UART/LIN, and 10 I²C channels - supports concurrent communication with sensors, displays, and transceivers |
| 16-bit timer array | 16 independent channels with capture/compare, PWM output, and dead-time insertion - suitable for motor control and LED dimming |
| Temperature sensor & reference | Integrated bandgap temperature sensor and 1.45 V internal reference - enables system health monitoring without external components |
Applications
| Industrial Sensor Node | Smart Thermostat HMI |
|---|---|
Use Scenario: Battery-powered wireless temperature/humidity node with BLE gateway interface. IC Role / Device Role / Timing Role: Main controller managing ADC sampling, RTC-triggered wake-up, serial communication to BLE module, and low-power state transitions. Use Value: HALT mode current of 0.57 μA enables multi-year operation on CR2032; integrated 10-bit ADC and temperature sensor reduce BOM count by two components. | Use Scenario: Residential thermostat with LCD display, push-button interface, and HVAC control outputs. IC Role / Device Role / Timing Role: System-on-chip handling touch-key scanning, display refresh, environmental sensing, and relay driver timing via 16-bit PWM timers. Use Value: 12 KB RAM accommodates graphics buffer and UI state machine; 26-channel ADC supports multiple thermistor inputs and voltage monitoring. |
| Programmable Logic Controller (PLC) I/O Module | Energy Meter Data Logger |
Use Scenario: DIN-rail mounted digital I/O expansion module with Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Protocol handler and GPIO manager interfacing with isolated level-shifters and RS-485 transceivers. Use Value: UART with built-in LIN support simplifies Modbus implementation; N-ch open-drain I/O pins tolerate 6 V for direct connection to 24 V industrial logic. | Use Scenario: Tamper-resistant electricity meter storing kWh readings and event logs in nonvolatile memory. IC Role / Device Role / Timing Role: Data acquisition engine performing periodic ADC measurements, RTC timestamping, and secure flash writes. Use Value: Code flash security lock prevents firmware tampering; calendar-based RTC ensures accurate billing intervals even after power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LEDFB#X0 | Same package and pinout; includes 8 KB data flash and 12 KB RAM - adds BGO-capable nonvolatile storage | Suitable where field-upgradable parameters or event logging require dedicated data flash | Select when persistent parameter storage or background flash writes during runtime are required |
| RL78/G14 R5F11LFDFA#V0 | 64-pin LQFP-0.65mm, 256 KB flash, 32 KB RAM, enhanced peripherals including capacitive touch and USB | Better suited for feature-rich HMI with USB connectivity or capacitive buttons; larger footprint and higher cost | Choose for next-generation designs needing USB device interface or advanced analog front-end |
Compared with R5F100LEDFB#X0, the R5F101LEDFB#X0 trades data flash for lower cost and identical code flash/RAM - ideal for fixed-function control. Versus RL78/G14, it offers proven reliability and smaller footprint at the expense of USB and touch support.
Availability
R5F101LEDFB#X0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat HMIs, and PLC I/O modules requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for R5F101LEDFB#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 requiring robust peripheral integration and long-term supply stability.
FAQ
What is the operating temperature range for the R5F101LEDFB#X0?
The R5F101LEDFB#X0 is rated for industrial operation from -40°C to +85°C (D-grade). This is confirmed by the 'D' suffix in the part number and aligns with Renesas' RL78/G13 specification for industrial applications. It does not support the extended -40°C to +105°C (G-grade) range.
Does the R5F101LEDFB#X0 include on-chip data flash memory?
No, the R5F101LEDFB#X0 does not include on-chip data flash memory. The '101' in the part number explicitly denotes "data flash not provided", per Renesas' RL78/G13 ordering guide. Only code flash (128 KB) and RAM (12 KB) are available for program and runtime storage.
What package type and dimensions does the R5F101LEDFB#X0 use?
The R5F101LEDFB#X0 uses an LFQFP-64 package: 10 mm × 10 mm body size, 0.5 mm lead pitch, and standard QFP lead form. The '#FB' suffix confirms LFQFP, and '#X0' indicates embossed tape packaging - verified in Renesas' RL78/G13 datasheet Table 1-1.
Can the R5F101LEDFB#X0 operate from a single 3.3 V supply?
Yes, the R5F101LEDFB#X0 operates across 1.6 V to 5.5 V, fully supporting 3.3 V nominal supply. All I/Os are 5 V-tolerant when configured as inputs, and the internal voltage detector (LVD) allows selectable reset thresholds down to 1.6 V - enabling robust brown-out protection in 3.3 V systems.
How many ADC channels does the R5F101LEDFB#X0 support, and what is the resolution?
The R5F101LEDFB#X0 supports up to 26 analog input channels with 10-bit resolution. This is specified in the RL78/G13 datasheet Section 1.1 Features and confirmed for 64-pin variants in the memory/peripheral matrix. The ADC operates across the full 1.6–5.5 V supply range and includes internal 1.45 V reference and temperature sensor.
R5F101LEDFB#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:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K 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:
R5F101LEDFB#X0 FAQ
1.How can I place an order for R5F101LEDFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LEDFB#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 R5F101LEDFB#X0 reliable?
The price and inventory of R5F101LEDFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LEDFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F101LEDFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LEDFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LEDFB#X0?
R5F101LEDFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LEDFB#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 R5F101LEDFB#X0?
For technical support, including R5F101LEDFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LEDFB#X0 requirements.
6.How does Aetrix verify that R5F101LEDFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101LEDFB#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 R5F101LEDFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F101LEDFB#X0?
All R5F101LEDFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LEDFB#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 R5F101LEDFB#X0 part is unused and in its original packaging.
Return procedure for R5F101LEDFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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