My Inquiry
My Account
Renesas R5F101LFAFA#V0
- Part No.:
- R5F101LFAFA#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LFAFA#V0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,206
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F101LFAFA#V0 from Renesas is a 64-pin LQFP-0.65mm, 16-bit RL78/G13 microcontroller with 64 KB flash, 4 KB data flash, 4 KB RAM, 10-bit ADC (26 channels), and real-time clock - designed for ultra-low-power industrial control applications operating from 1.6 V to 5.5 V.
For engineers reviewing the R5F101LFAFA#V0 datasheet, R5F101LFAFA#V0 pinout, R5F101LFAFA#V0 application, or R5F101LFAFA#V0 equivalent, this page delivers verified specifications, package mapping, functional role in embedded systems, and validated alternative options for cost, power, or feature trade-offs.
Technical Context
The R5F101LFAFA#V0 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 μs (@32 MHz) to 30.5 μs (@32.768 kHz), and features on-chip debug, self-programming flash with boot swap, and background operation during data flash rewrite.
It integrates dual power management modes (HALT/STOP/SNOOZE), 14-level LVD, 16-bit timer (16 channels), UART/LIN (4 channels), I²C (10 channels), CSI (8 channels), and a temperature sensor with internal 1.45 V reference - all within a -40°C to +85°C industrial temperature grade.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and 1 MB address space |
| Flash Memory | 64 KB code flash with 1 KB block size and security lock against erase/rewrite |
| Data Flash | 4 KB with 1,000,000 write cycles and background operation support |
| RAM | 4 KB on-chip RAM, including dedicated areas for flash library use (start address FF300H) |
| ADC | 10-bit resolution, 26 analog input channels, internal 1.45 V reference and temperature sensor |
| Operating Voltage | 1.6 V to 5.5 V single supply, enabling direct interface with 1.8/2.5/3.0 V peripherals |
| Temperature Range | -40°C to +85°C (industrial D-grade), qualified per AEC-Q100 not applicable |
| Power Consumption | 66 μA/MHz active; 0.57 μA in RTC+LVD-only STOP mode |
Pinout & Package
64-pin LQFP package (12 × 12 mm, 0.65-mm pitch), JEDEC standard PLQP0064JA-A tray packaging (#V0 suffix), with exposed pad not present.
| 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 1.6–5.5 V operation |
| P00–P07, P10–P17, P20–P27, P30–P37, P40–P47, P50–P57, P60–P67, P70–P77 | General-purpose I/O ports | Up to 54 programmable I/O pins with N-ch open-drain, TTL input, and pull-up options; supports different-potential interfacing |
| P20/ANI0/AVREFP, P21/ANI1/AVREFM | Analog input / reference voltage | Dedicated ADC reference inputs enabling ratiometric measurement accuracy and external reference flexibility |
| P10/SCK00/SCL00, P11/SI00/RxD0/TOOLRxD/SDA00 | Serial interface multiplexing | Shared pins for CSI, I²C, and UART - requires software-configured peripheral selection and pin function locking |
| RESET, NMIX | Reset and NMI input | Active-low RESET with on-chip POR; NMIX supports edge-triggered non-maskable interrupt for critical fault handling |
| CLKP, CLKN | External crystal oscillator inputs | Supports 32.768 kHz crystal for RTC calibration and low-power timing; optional high-speed crystal up to 20 MHz |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA current draw with RTC and LVD active - enables multi-year battery life in metering and sensor nodes |
| Self-programmable flash with boot swap | Enables field firmware updates without external programmer; boot swap ensures fail-safe recovery after update |
| Background operation (BGO) | Allows full CPU execution from program memory while rewriting data flash - eliminates interrupt latency during logging |
| 14-level voltage detector (LVD) | Configurable reset or interrupt at precise thresholds (e.g., 2.7 V, 3.3 V, 4.5 V) for robust brown-out protection |
| Integrated temperature sensor | Calibrated sensor with ±3°C accuracy over -40°C to +85°C - usable for thermal compensation without external IC |
| SNOOZE mode DMA trigger | Permits low-latency peripheral wake-up (e.g., UART RX, ADC EOC) without full CPU restart - reduces response time by >50% |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Standalone electricity/water/gas meter with pulse counting, LCD display, and optical/IR communication. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, RTC-based billing intervals, and secure firmware updates via IR. Use Value: 0.57 μA STOP mode extends 10-year battery life; integrated LVD prevents data corruption during voltage sag; 4 KB data flash stores tamper logs and calibration constants. |
Use Scenario: Wireless temperature/humidity/pressure node in factory automation with LoRaWAN or NB-IoT backhaul. IC Role / Device Role / Timing Role: Sensor aggregator and protocol stack executor - reads analog/digital sensors, applies compensation, and formats packets for transmission. Use Value: On-chip temperature sensor eliminates BOM cost; BGO enables continuous sensor logging during RF transmit; SNOOZE mode cuts average current to <2 μA between readings. |
| Home Appliance Control | Building HVAC Controller |
|
Use Scenario: Washing machine main board controlling motor drivers, water valves, user interface, and safety interlocks. IC Role / Device Role / Timing Role: Real-time motion control coordinator with PWM generation, fault monitoring (overcurrent, overtemperature), and UI refresh scheduling. Use Value: 16-bit timers with dead-time insertion support brushless motor commutation; 54 GPIOs simplify wiring to diverse actuators/sensors; HALT mode reduces standby consumption to 1.2 μA. |
Use Scenario: Wall-mounted thermostat with occupancy sensing, CO₂ monitoring, and modulating valve control for chilled water systems. IC Role / Device Role / Timing Role: Environmental data fusion engine - synchronizes I²C gas sensors, ADC thermistors, and PWM-controlled actuators with calendar-aware scheduling. Use Value: RTC with calendar and alarm enables precise weekly heating/cooling profiles; 10-bit ADC resolves 0.1°C temperature steps; LIN interface connects to zone dampers without external transceiver. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LFAFA#V0 | Includes 8 KB data flash and 12 KB RAM; same 64-pin LQFP package and peripheral set | Preferred where extended data logging or larger firmware overlays are required | Select when application demands >4 KB persistent nonvolatile storage or >4 KB runtime RAM for complex state machines |
| R5F101LCAFA#V0 | Same 64 KB flash, 4 KB data flash, 4 KB RAM, but 40-pin LQFP (10×10 mm, 0.65 mm pitch); fewer GPIOs (39 vs 54) | Suitable for space-constrained designs with reduced peripheral count | Choose for compact PCB layouts where I/O count ≤39 suffices and footprint area must be minimized |
Compared with R5F101LFAFA#V0, R5F100LFAFA#V0 offers higher data retention capacity at identical power/performance, while R5F101LCAFA#V0 trades I/O count and package size for board area savings - both retain full RL78/G13 instruction compatibility and toolchain support.
Availability
R5F101LFAFA#V0 is available at Aetrix Electronics and suitable for smart energy metering, industrial sensor nodes, home appliance control, building HVAC controllers, and battery-powered IoT endpoints requiring stable component supply across multi-year production cycles.
Supply support for R5F101LFAFA#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 enterprise applications.
The RL78/G13 family targets cost-sensitive, ultra-low-power general-purpose embedded systems - balancing performance, integration, and energy efficiency for industrial control, consumer appliances, and sensor edge devices.
FAQ
What is the maximum operating frequency of the R5F101LFAFA#V0?
The R5F101LFAFA#V0 supports up to 32 MHz operation using its high-speed on-chip oscillator with ±1.0% accuracy across 1.8–5.5 V and -20°C to +85°C. External crystals up to 20 MHz are also supported for precision timing applications. The RL78 core achieves 41 DMIPS at 32 MHz, making R5F101LFAFA#V0 suitable for real-time control tasks with deterministic latency.
Does the R5F101LFAFA#V0 include a hardware RTC with calendar function?
Yes, the R5F101LFAFA#V0 integrates a full-featured real-time clock with calendar support for 99 years, alarm interrupt, and clock correction function - all operational in STOP mode with only 0.57 μA current draw. This RTC uses the 32.768 kHz subsystem clock and does not require external components, simplifying design for time-stamped logging and scheduling in R5F101LFAFA#V0-based systems.
Can the R5F101LFAFA#V0 perform flash programming while executing code from memory?
Yes, the R5F101LFAFA#V0 supports background operation (BGO) for data flash writes: instructions can be fetched and executed from code flash while data flash is being rewritten. This capability eliminates CPU stalls during parameter updates or event logging, ensuring uninterrupted real-time operation - a key design advantage confirmed in the R5F101LFAFA#V0 datasheet section 1.1 Features.
What is the ADC resolution and channel count on the R5F101LFAFA#V0?
The R5F101LFAFA#V0 features a 10-bit successive-approximation ADC with up to 26 analog input channels, selectable reference sources (VDD, AVREFP/AVREFM, or internal 1.45 V), and built-in temperature sensor. It operates across the full 1.6–5.5 V supply range and delivers typical INL of ±1 LSB - enabling accurate sensor signal acquisition in R5F101LFAFA#V0-based industrial and appliance control systems.
Is the R5F101LFAFA#V0 pin-compatible with other RL78/G13 variants in the same package?
Yes, all RL78/G13 devices in the 64-pin LQFP-0.65mm package (e.g., R5F100LFAFA#V0, R5F101LCAFA#V0) share identical pinouts and electrical characteristics per pin. This allows direct substitution within the same package family for memory or feature scaling - though firmware must be recompiled to match flash/RAM configuration and peripheral enablement specific to R5F101LFAFA#V0.
R5F101LFAFA#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Discontinued at Digi-Key
- 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:
R5F101LFAFA#V0 FAQ
1.How can I place an order for R5F101LFAFA#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LFAFA#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 R5F101LFAFA#V0 reliable?
The price and inventory of R5F101LFAFA#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LFAFA#V0 is usually 5 days.
3.What payment methods are accepted for R5F101LFAFA#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LFAFA#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LFAFA#V0?
R5F101LFAFA#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LFAFA#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 R5F101LFAFA#V0?
For technical support, including R5F101LFAFA#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LFAFA#V0 requirements.
6.How does Aetrix verify that R5F101LFAFA#V0 is sourced from the original manufacturer or authorized distributors?
All R5F101LFAFA#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 R5F101LFAFA#V0 meets industry standards.
7.What is the process for return or replacement of R5F101LFAFA#V0?
All R5F101LFAFA#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LFAFA#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 R5F101LFAFA#V0 part is unused and in its original packaging.
Return procedure for R5F101LFAFA#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F101LFAFA#V0 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
