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Renesas R5F101LFAFB#X0
- Part No.:
- R5F101LFAFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LFAFB#X0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,549
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Product details
Overview
R5F101LFAFB#X0 from Renesas is a 64-pin, LFQFP-0.5 mm pitch, 16-bit RL78/G13 microcontroller with 128 KB flash memory, 8 KB data flash, and 12 KB RAM, operating from 1.6 V to 5.5 V at up to 32 MHz (41 DMIPS), optimized for ultra-low-power industrial control applications including sensor nodes and battery-powered HMI.
For engineers reviewing the R5F101LFAFB#X0 datasheet, R5F101LFAFB#X0 pinout, R5F101LFAFB#X0 application, or R5F101LFAFB#X0 equivalent, key selection criteria include its 0.57 μA STOP mode current, integrated RTC + LVD, 26-channel 10-bit ADC, and support for LIN/UART/I²C/SPI interfaces in an industrial-grade −40°C to +85°C temperature range.
Technical Context
The R5F101LFAFB#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed on-chip oscillator) to 30.5 μs (32.768 kHz subsystem clock). It integrates a 12-bit interval timer, real-time clock with calendar/alarm functions, and watchdog timer with dedicated low-speed oscillator.
It features dual DMA controller (4 channels), hardware multiplier/divider/MAC unit (16×16→32, 32÷32→32), and peripheral flexibility including up to 16 × 16-bit timers, 3–10 I²C channels, 2–4 UART/LIN channels, and 2–8 CSI (SPI-compatible) channels - all configurable without external components.
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 (41 DMIPS), supported by ±1.0% accurate on-chip oscillator |
| Memory Configuration | 128 KB code flash (1 KB block size), 8 KB data flash (1M rewrite cycles), 12 KB RAM |
| Power Consumption | 66 μA/MHz active; 0.57 μA in STOP mode with RTC + LVD enabled |
| Analog Peripherals | 10-bit ADC with 26 input channels, internal 1.45 V reference and temperature sensor |
| Digital Interfaces | Up to 4 UART/LIN, 10 I²C, 8 CSI (SPI-compatible), 16 × 16-bit timers, RTC with calendar |
| Operating Temperature | −40°C to +85°C (Industrial D-grade), 1.6 V to 5.5 V supply range |
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 |
|---|---|---|
| P10 | SCK00 / SCL00 | Serial clock for CSI0 or I²C0 master/slave operation |
| P11 | SI00 / RxD0 / TOOLRxD | CSI0 serial input or UART0 receive; also supports debug communication |
| P12 | SO00 / TxD0 / TOOLTxD | CSI0 serial output or UART0 transmit; also supports debug communication |
| P13 | SS00 / RTS0 | CSI0 slave select or UART0 request-to-send control signal |
| P20 | ANI0 / AVREFP | Analog input channel 0 or positive reference voltage for ADC |
| P21 | ANI1 / AVREFM | Analog input channel 1 or negative reference voltage for ADC |
| P30 | INTP0 / PPG0 | External interrupt 0 input or programmable pulse generator output |
| P50 | RTCCLK / OSC1 | Real-time clock input or external crystal connection (32.768 kHz) |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA retention with RTC + LVD active enables multi-year battery life in metering |
| Self-programmable flash | Supports background data flash rewriting (BGO) during program execution for firmware updates |
| Integrated safety functions | On-chip LVD with 14 selectable threshold levels and POR circuit for robust power sequencing |
| Flexible clock system | Selectable high-speed on-chip oscillator (1–32 MHz) eliminates need for external crystal in many designs |
| Hardware acceleration | Dedicated 16×16 multiplier and 32-bit divider reduce firmware overhead in control algorithms |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Standalone electricity/water/gas meter with tamper detection, display, and wireless upload. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, RTC-based billing intervals, LIN/UART comms to concentrator, and secure flash updates. Use Value: 0.57 μA STOP mode extends battery life beyond 10 years; integrated LVD prevents data corruption during brownout. |
Use Scenario: Wireless temperature/humidity/pressure node in factory automation or HVAC monitoring. IC Role / Device Role / Timing Role: Sensor interface hub performing analog acquisition, digital filtering, timestamped logging, and low-power BLE/Wi-SUN packet prep. Use Value: 26-channel 10-bit ADC with internal reference enables direct sensor interfacing; BGO allows logging while transmitting. |
| Programmable Logic Controller (PLC) I/O Module | Home Appliance Control Panel |
Use Scenario: DIN-rail mounted I/O expansion module with digital inputs, relay outputs, and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Real-time I/O manager handling edge-triggered interrupts, PWM-driven relays, and UART-based protocol stack. Use Value: 16 × 16-bit timers support precise PWM generation and input capture; 4 UART channels enable dual-protocol redundancy. |
Use Scenario: Touch-enabled control panel for washing machine, oven, or air conditioner with LED backlight and buzzer feedback. IC Role / Device Role / Timing Role: Human-machine interface processor driving capacitive touch sensing, buzzer timing, LED dimming, and appliance motor control signals. Use Value: On-chip key interrupt and clock/buzzer output controller reduce BOM count; 1.6 V min supply supports wide-input DC-DC operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101LCAFB#X0 | Same package and core, but 96 KB flash / 8 KB data flash / 8 KB RAM | Lower memory footprint suits simpler control tasks without extensive logging or OTA update storage | Select when application code size remains under 96 KB and data logging requirements are minimal |
| R5F101LLAFB#X0 | Same package and memory (128 KB/8 KB/12 KB), but rated for −40°C to +105°C (G-grade) | Required for under-hood automotive or high-temp industrial enclosures exceeding +85°C ambient | Choose only if full industrial temperature range (−40°C to +105°C) is mandatory for end-equipment certification |
Compared with R5F101LFAFB#X0, the R5F101LCAFB#X0 reduces flash/RAM capacity for cost-sensitive volume production, while the R5F101LLAFB#X0 maintains identical specs but adds extended temperature qualification - neither offers pin compatibility with other RL78 families, and both require PCB layout verification for thermal pad and decoupling.
Availability
R5F101LFAFB#X0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, and PLC I/O modules requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for ISO 9001-certified manufacturing.
Supply support for R5F101LFAFB#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 industrial, automotive, and enterprise markets.
The RL78/G13 product line delivers true low-power performance (66 μA/MHz, 0.57 μA STOP) for cost-sensitive industrial control, home appliances, and metering applications where reliability, code density, and integrated peripherals reduce system complexity.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F101LFAFB#X0?
The R5F101LFAFB#X0 operates at up to 32 MHz using its high-accuracy on-chip oscillator (±1.0% over −20°C to +85°C), delivering 41 DMIPS of processing performance. Its RL78 CPU core achieves this with a 3-stage pipeline and supports variable instruction timing - from 0.03125 μs at full speed down to 30.5 μs in ultra-low-speed 32.768 kHz RTC mode - enabling dynamic power/performance scaling in the R5F101LFAFB#X0.
Does the R5F101LFAFB#X0 include data flash memory, and what are its endurance and voltage requirements?
Yes, the R5F101LFAFB#X0 integrates 8 KB of on-chip data flash memory with 1,000,000 write/erase cycles (typical) and supports background operation (BGO), allowing program execution from code flash while rewriting data flash. Rewrites operate across the full supply range of 1.8 V to 5.5 V, making the R5F101LFAFB#X0 suitable for battery-backed or wide-input industrial power domains without external voltage regulation for programming.
What low-power modes does the R5F101LFAFB#X0 support, and what is its lowest active current consumption?
The R5F101LFAFB#X0 supports HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it draws just 0.57 μA - verified at VDD = 3.0 V and TA = 25°C. Active-mode current is 66 μA per MHz, measured at 32 MHz. These values are specified in the official R01DS0131EJ0380 datasheet and make the R5F101LFAFB#X0 ideal for energy-harvesting and long-life battery applications.
Can the R5F101LFAFB#X0 operate across the full industrial temperature range, and what grade does it carry?
The R5F101LFAFB#X0 is qualified for −40°C to +85°C operation and carries the 'D' grade designation per Renesas' part numbering scheme, indicating industrial-temperature qualification. It is not rated for −40°C to +105°C (G-grade); that specification applies to variants like R5F101LLAFB#X0. The R5F101LFAFB#X0 meets JEDEC JESD22-A108 standards for industrial ambient conditions.
What development tools and debug interfaces are supported by the R5F101LFAFB#X0?
The R5F101LFAFB#X0 supports on-chip debugging via the single-wire debug interface (SWD) using Renesas E2 emulator Lite or E2 emulator, compatible with CS+ and e2 studio IDEs. It includes full on-chip debug functionality - breakpoint, watchpoint, and memory access - without requiring external debug headers. The R5F101LFAFB#X0 also supports self-programming and flash shield window protection for secure firmware updates.
R5F101LFAFB#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:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K 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:
R5F101LFAFB#X0 FAQ
1.How can I place an order for R5F101LFAFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LFAFB#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 R5F101LFAFB#X0 reliable?
The price and inventory of R5F101LFAFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LFAFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F101LFAFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LFAFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LFAFB#X0?
R5F101LFAFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LFAFB#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 R5F101LFAFB#X0?
For technical support, including R5F101LFAFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LFAFB#X0 requirements.
6.How does Aetrix verify that R5F101LFAFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101LFAFB#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 R5F101LFAFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F101LFAFB#X0?
All R5F101LFAFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LFAFB#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 R5F101LFAFB#X0 part is unused and in its original packaging.
Return procedure for R5F101LFAFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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