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Renesas R5F101LFAFA#10
- Part No.:
- R5F101LFAFA#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LFAFA#10.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:952
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Product details
Overview
R5F101LFAFA#10 from Renesas is a 64-pin LQFP-0.65mm, 128 KB flash, 12 KB RAM, RL78/G13 16-bit microcontroller optimized for ultra-low-power industrial control applications operating from 1.6 V to 5.5 V, delivering 41 DMIPS at 32 MHz with 0.57 μA STOP mode current and integrated RTC, 10-bit ADC (26 channels), and UART/I²C/CSI interfaces.
For engineers reviewing the R5F101LFAFA#10 datasheet, R5F101LFAFA#10 pinout, R5F101LFAFA#10 application, or R5F101LFAFA#10 equivalent, key selection criteria include its data-flash-free architecture, industrial-grade -40°C to +85°C temperature rating (D-grade), 64-pin LQFP package with 48 general-purpose I/Os, and support for SNOOZE-mode peripheral wakeup without CPU wake - critical for battery-powered sensor nodes and programmable logic controllers.
Technical Context
The R5F101LFAFA#10 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed 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 driven by a dedicated low-speed on-chip oscillator.
Its memory subsystem includes 128 KB of code flash (1 KB block size), no data flash (per part numbering convention "101"), and 12 KB of on-chip RAM. Power management features HALT, STOP, and SNOOZE modes, with POR, LVD (14-level selectable), and DMA controller supporting 2-channel transfers between SFR and RAM in just 2 clocks per 8/16-bit operation.
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 deterministic real-time control |
| Flash Memory | 128 KB code flash, 1 KB erase blocks, no data flash (R5F101x series) |
| RAM Size | 12 KB on-chip RAM - sufficient for RTOS stacks and protocol buffers |
| Supply Voltage Range | 1.6 V to 5.5 V - enables direct interface with 1.8 V, 3.3 V, and 5 V peripherals |
| Low-Power Modes | STOP mode draws 0.57 μA (RTC + LVD active); HALT mode consumes 66 μA/MHz |
| Analog Peripherals | 10-bit ADC with 26 input channels, internal 1.45 V reference, and temperature sensor |
Pinout & Package
Package: 64-pin LQFP (12 × 12 mm, 0.65-mm pitch), RoHS-compliant, JEDEC standard PLQP0064JA-A footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI Clock / I²C Clock | Shared function pin enabling dual-interface communication on single trace |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI Input / UART RX / I²C Data | Multi-protocol serial receive pin supporting debug (TOOLRxD) and sensor bus (SDA00) |
| P12/SO00/TxD0/TOOLTxD | SPI Output / UART TX / Debug TX | Enables firmware updates via UART and SPI-based peripheral control simultaneously |
| P20/ANI0/AVREFP | Analog Input 0 / ADC Reference Positive | Configurable as primary analog channel or precision ADC reference voltage source |
| P21/ANI1/AVREFM | Analog Input 1 / ADC Reference Negative | Supports ratiometric measurements and differential ADC configurations |
| P30/INTP0/CLK0 | External Interrupt 0 / Subsystem Clock Input | Accepts 32.768 kHz crystal for RTC timing or external event-triggered interrupt |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA with RTC + LVD active - extends battery life in wireless sensor transmitters |
| SNOOZE mode operation | Permits UART/CSI/ADC wakeup without CPU wake - reduces system latency and power |
| On-chip high-accuracy oscillator | +/-1.0% accuracy (1.8–5.5 V, -20 to +85°C) - eliminates external crystal for cost-sensitive designs |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide - accelerates motor control and filtering algorithms |
| Background data flash programming | Not applicable - R5F101x series lacks data flash; simplifies firmware update logic |
Applications
| Industrial PLC I/O Module | Smart Energy Metering |
|---|---|
Use Scenario: Standalone digital input/output expansion module in DIN-rail mounted PLC systems with isolated field-side communication. IC Role / Device Role / Timing Role: Main control MCU managing opto-isolated GPIO, UART-modbus RTU stack, and RTC-synchronized logging. Use Value: 48 GPIOs, 26-channel ADC, and 0.57 μA STOP mode enable local data buffering during comms outages without capacitor hold-up. |
Use Scenario: Residential electricity meter with pulse counting, tamper detection, and time-of-use tariff calculation. IC Role / Device Role / Timing Role: System-on-chip performing metrology preprocessing, secure timekeeping, and IR/RF communication. Use Value: Integrated RTC with calendar/alarm and ±1.0% oscillator accuracy eliminate external timekeeping components while meeting IEC 62053-21 Class 1 timing requirements. |
| Wireless Sensor Node | Appliance Motor Control |
Use Scenario: Battery-powered environmental sensor node transmitting temperature/humidity via sub-GHz RF transceiver. IC Role / Device Role / Timing Role: Low-power host MCU coordinating ADC sampling, RF packet assembly, and deep-sleep scheduling. Use Value: SNOOZE mode allows UART-triggered wake from STOP, reducing average current to <2 μA while maintaining responsive command handling. |
Use Scenario: Brushless DC motor driver in HVAC blowers with closed-loop speed regulation and fault protection. IC Role / Device Role / Timing Role: Real-time motion controller executing FOC algorithms using hardware multiplier and 16-bit timers. Use Value: 41 DMIPS at 32 MHz and 16-channel 16-bit timers provide precise PWM generation and current-sense ADC synchronization within <1 μs jitter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LFAFA#10 | Includes 4 KB data flash; same 128 KB code flash, 12 KB RAM, and pinout | Required where firmware-over-the-air updates or parameter storage without external EEPROM is needed | Select when non-volatile parameter retention across power cycles is mandatory |
| RL78/G14 R5F104LEAGFB#30 | Enhanced peripheral set: 12-bit ADC (32 ch), 64 KB RAM, USB 2.0 FS; 64-pin LFQFP-0.5mm | Targeted at USB-connected HMI and data loggers requiring higher memory and connectivity | Choose only if USB interface or >12 KB RAM is required; not pin-compatible |
Compared with R5F100LFAFA#10, the R5F101LFAFA#10 saves board space and BOM cost by omitting data flash-ideal for fixed-function firmware-but requires external non-volatile storage for field-upgradable parameters; versus RL78/G14, it trades USB and larger RAM for lower power and proven industrial qualification at identical pin count.
Availability
R5F101LFAFA#10 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, smart energy meters, wireless sensor nodes, and appliance motor controllers requiring stable component supply across multi-year production cycles.
Supply support for R5F101LFAFA#10 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 applications - emphasizing energy efficiency, integration, and ease of migration from legacy 8/16-bit platforms.
FAQ
What is the flash memory configuration of the R5F101LFAFA#10?
The R5F101LFAFA#10 contains 128 KB of code flash memory organized in 1 KB erasable blocks and no data flash memory - consistent with the "101" part-numbering suffix indicating data flash omission. This architecture reduces die size and cost for applications where parameter storage is handled externally or via code flash emulation.
Does the R5F101LFAFA#10 support hardware debugging?
Yes, the R5F101LFAFA#10 includes full on-chip debug functionality compatible with Renesas E2 emulator and CS+ IDE. Debug access uses dedicated pins (e.g., TOOLRxD/TOOLTxD on P11/P12) and supports breakpoints, watchpoints, and real-time variable monitoring without halting peripheral operation.
What is the maximum ambient operating temperature for R5F101LFAFA#10?
The R5F101LFAFA#10 is rated for industrial operation from –40°C to +85°C (D-grade), as indicated by the "D" in its ordering code structure. It does not support the extended +105°C range (G-grade) offered by some RL78/G13 variants like R5F101LGxxx#10.
Can the R5F101LFAFA#10 operate from a 1.8 V supply?
Yes, the R5F101LFAFA#10 operates across 1.6 V to 5.5 V, making it fully compatible with 1.8 V logic domains. Its I/O ports support different-potential interfacing, allowing direct connection to 1.8 V, 2.5 V, and 3.3 V peripherals without level shifters under specified drive strength limits.
How many serial communication interfaces does R5F101LFAFA#10 integrate?
The R5F101LFAFA#10 integrates up to 10 serial interfaces: 2–4 UART/LIN channels, 3–10 I²C/Simplified I²C channels, and 2–8 CSI (SPI-compatible) channels - with exact count dependent on pin count and variant. For the 64-pin R5F101LFAFA#10, it supports 4 UART, 10 I²C, and 8 CSI channels.
R5F101LFAFA#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, SPI, 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:
R5F101LFAFA#10 FAQ
1.How can I place an order for R5F101LFAFA#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LFAFA#10 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 R5F101LFAFA#10 reliable?
The price and inventory of R5F101LFAFA#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LFAFA#10 is usually 5 days.
3.What payment methods are accepted for R5F101LFAFA#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LFAFA#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LFAFA#10?
R5F101LFAFA#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LFAFA#10 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 R5F101LFAFA#10?
For technical support, including R5F101LFAFA#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LFAFA#10 requirements.
6.How does Aetrix verify that R5F101LFAFA#10 is sourced from the original manufacturer or authorized distributors?
All R5F101LFAFA#10 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 R5F101LFAFA#10 meets industry standards.
7.What is the process for return or replacement of R5F101LFAFA#10?
All R5F101LFAFA#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LFAFA#10, 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 R5F101LFAFA#10 part is unused and in its original packaging.
Return procedure for R5F101LFAFA#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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