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Renesas R5F101PFAFB#V0
- Part No.:
- R5F101PFAFB#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R5F101PFAFB#V0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,860
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Product details
Overview
R5F101PFAFB#V0 from Renesas is a 100-pin LFQFP-0.5mm-pitch 16-bit RL78/G13 microcontroller with no data flash, 64 KB code flash, 4 KB RAM, and industrial-grade -40°C to +85°C operation. It delivers 41 DMIPS at 32 MHz, consumes 66 μA/MHz active and 0.57 μA in RTC+LVD-only mode, and integrates UART, I²C, SPI, 16-bit timers, 10-bit ADC (26 channels), and real-time clock - deployed in smart metering, HVAC controllers, and industrial sensor nodes.
For engineers reviewing the R5F101PFAFB#V0 datasheet, R5F101PFAFB#V0 pinout, R5F101PFAFB#V0 application, or R5F101PFAFB#V0 equivalent, key selection criteria include its data-flash-free configuration for cost-sensitive firmware-immutable designs, LFQFP-100 package compatibility with high-density PCB layouts, ultra-low-power STOP/HALT modes for battery-backed systems, and integrated analog peripherals enabling single-chip sensor interface solutions.
Technical Context
The R5F101PFAFB#V0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz HS oscillator) to 30.5 μs (32.768 kHz subsystem clock). Its memory map spans 1 MB address space, with on-chip resources including 64 KB code flash (1 KB block size), 4 KB RAM, and no data flash - distinguishing it from R5F100x variants.
Power management includes on-chip POR, 14-level LVD with interrupt/reset options, and three low-power modes (HALT, STOP, SNOOZE). Peripheral integration comprises up to 26-channel 10-bit ADC with internal 1.45 V reference and temperature sensor, 8–16 × 16-bit timers, real-time clock with calendar/alarm, and dual UART/LIN, triple I²C, and dual CSI (SPI-compatible) serial interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing control for real-time embedded tasks. |
| Max Operating Frequency | 32 MHz; delivers 41 DMIPS performance for mid-complexity control algorithms. |
| Flash / RAM | 64 KB code flash (1 KB erase blocks), 4 KB RAM, zero data flash - optimized for fixed-function firmware with no field updates. |
| Power Consumption | 66 μA/MHz active; 0.57 μA in RTC+LVD-only STOP mode - supports >10-year battery life in metering applications. |
| Analog Peripherals | 10-bit ADC with 26 input channels, internal 1.45 V reference, and on-die temperature sensor - eliminates external references in environmental monitoring. |
| Serial Interfaces | 2× UART/LIN, 3× I²C/Simplified I²C, 2× CSI (SPI-compatible); enables multi-sensor connectivity without external bus expanders. |
| Operating Temperature | -40°C to +85°C (Industrial D-grade); qualified for factory automation and building control environments. |
Pinout & Package
Package: 100-pin LFQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Single 1.6–5.5 V rail; supports direct connection to Li-ion, 3.3 V, or 5 V systems without regulators. |
| P00–P07, P10–P17, P20–P27, etc. | General-purpose I/O ports | Up to 80 programmable pins with N-ch open-drain, TTL input, pull-up, and 1.8/2.5/3 V interface support - simplifies mixed-voltage board design. |
| P10/P11 | SCK00/SI00/RxD0/TOOLRxD/SDA00 | Multi-function pins supporting SPI clock/data, UART receive, debug interface, and I²C data - enables shared debug/comm lines. |
| P20/P21 | ANI0/AVREFP, ANI1/AVREFM | Dedicated ADC analog inputs with selectable reference voltage terminals - ensures precision measurement stability. |
| XT1/XT2 | Crystal oscillator connections | Supports 32.768 kHz crystal for RTC accuracy; optional high-speed crystal up to 20 MHz. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA retention with RTC + LVD active - enables decade-long battery operation in remote sensors. |
| Self-programmable flash | Boot swap and flash shield window functions supported in code flash - allows secure firmware upgrades when used with external data storage. |
| Background data rewriting | Not applicable - R5F101PFAFB#V0 has no data flash; eliminates BGO complexity and associated RAM allocation overhead. |
| Integrated real-time clock | Full calendar (99-year), alarm, and clock correction - removes need for external RTC IC in time-stamped logging applications. |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC operations - accelerates PID control and sensor fusion math. |
Applications
| Smart Energy Metering | HVAC Control Unit |
|---|---|
|
Use Scenario: Residential electricity/water/gas meter with pulse counting, tamper detection, and RS-485 communication. IC Role / Device Role / Timing Role: Main system controller executing metrology firmware, managing LCD display, handling UART-based utility comms, and maintaining time via integrated RTC. Use Value: 64 KB flash accommodates encrypted metrology algorithms and compliance stacks; ultra-low STOP current extends battery backup to >15 years. |
Use Scenario: Wall-mounted thermostat with temperature/humidity sensing, fan speed control, and Zigbee/Bluetooth co-processor interface. IC Role / Device Role / Timing Role: Primary MCU acquiring analog sensor data, driving triac-based heating/cooling outputs, and synchronizing wireless module wake cycles via RTC alarms. Use Value: 26-channel 10-bit ADC reads multiple thermistors and humidity sensors directly; LIN-capable UART interfaces with HVAC actuators without transceiver ICs. |
| Industrial Sensor Node | Appliance Motor Controller |
|
Use Scenario: DIN-rail mounted vibration/temperature/pressure monitor in factory equipment with Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Standalone data acquisition engine performing FFT preprocessing, storing event logs in external EEPROM, and managing isolated RS-485 transceiver enable timing. Use Value: Hardware multiplier accelerates vibration analysis; 8–16 × 16-bit timers precisely schedule ADC sampling and Modbus response windows. |
Use Scenario: Brushless DC motor drive in washing machine or air conditioner with hall-effect commutation and overcurrent protection. IC Role / Device Role / Timing Role: Motion controller generating PWM signals, reading hall sensors, monitoring phase currents via ADC, and triggering fault shutdown via LVD interrupt. Use Value: On-chip LVD with 14 selectable thresholds enables precise overvoltage/undervoltage trip points; N-ch open-drain I/O drives gate drivers directly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100PFAFB#V0 | 64 KB code flash + 4 KB data flash + 4 KB RAM; supports background data rewriting. | Required where field firmware updates or parameter logging in on-chip nonvolatile memory is mandatory. | Select when data flash endurance (1M cycles) and BGO capability are essential for self-contained data logging. |
| R5F101PGAFA#V0 | 100-pin LQFP-0.65mm (14×20 mm), same flash/RAM, identical peripheral set. | Fits legacy PCBs designed for larger LQFP footprints; higher thermal resistance than LFQFP. | Choose for drop-in replacement on existing LQFP-100 layouts where re-spinning for LFQFP is impractical. |
Compared with R5F100PFAFB#V0, the R5F101PFAFB#V0 reduces BoM cost by eliminating data flash while retaining full code execution capability; versus R5F101PGAFA#V0, it offers 29% smaller footprint and improved thermal dissipation in space-constrained industrial modules.
Availability
R5F101PFAFB#V0 is available at Aetrix Electronics and suitable for smart metering, HVAC control, and industrial sensor node designs requiring stable component supply, long-term lifecycle assurance, and industrial-temperature qualification.
Supply support for R5F101PFAFB#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 IoT markets.
The RL78/G13 family targets cost-sensitive, ultra-low-power general-purpose embedded applications - balancing performance, integration, and energy efficiency for battery-operated and energy-harvesting systems.
FAQ
What is the flash memory configuration of the R5F101PFAFB#V0?
The R5F101PFAFB#V0 contains 64 KB of code flash memory with 1 KB erase blocks and no data flash. This configuration is intended for applications with fixed firmware that does not require in-field parameter storage or updates. The absence of data flash reduces cost and simplifies flash management logic in the R5F101PFAFB#V0 firmware stack.
Does the R5F101PFAFB#V0 support real-time clock functionality?
Yes, the R5F101PFAFB#V0 integrates a full-featured real-time clock with calendar support (up to 99 years), alarm interrupt, and clock correction function. It operates independently in STOP mode using the 32.768 kHz subsystem clock, drawing only 0.57 μA - making the R5F101PFAFB#V0 suitable for time-critical, battery-backed applications like energy meters and security loggers.
What are the low-power operating modes supported by the R5F101PFAFB#V0?
The R5F101PFAFB#V0 supports HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, current consumption is 0.57 μA. HALT mode stops the CPU but keeps peripherals running at 66 μA/MHz. These modes are hardware-controlled and configurable via system registers - critical for extending battery life in the R5F101PFAFB#V0's target applications.
Can the R5F101PFAFB#V0 interface with 1.8 V or 2.5 V peripherals?
Yes, the R5F101PFAFB#V0 I/O ports support different-potential interfacing: selected pins tolerate 1.8 V, 2.5 V, or 3 V logic levels when configured with appropriate drive strength and input buffer settings. This capability allows direct connection to low-voltage sensors and communication ICs without level shifters - a key advantage in mixed-voltage designs using the R5F101PFAFB#V0.
What serial communication interfaces are integrated into the R5F101PFAFB#V0?
The R5F101PFAFB#V0 integrates two UART/LIN channels, three I²C/Simplified I²C channels, and two CSI (SPI-compatible) interfaces. All are independently configurable and support simultaneous operation. This mix enables the R5F101PFAFB#V0 to manage multiple sensors, displays, and wireless modules without external bus expanders - reducing system complexity and BOM count.
R5F101PFAFB#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-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:
- 82
- 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 20x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101PFAFB#V0 FAQ
1.How can I place an order for R5F101PFAFB#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101PFAFB#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 R5F101PFAFB#V0 reliable?
The price and inventory of R5F101PFAFB#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101PFAFB#V0 is usually 5 days.
3.What payment methods are accepted for R5F101PFAFB#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101PFAFB#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101PFAFB#V0?
R5F101PFAFB#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101PFAFB#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 R5F101PFAFB#V0?
For technical support, including R5F101PFAFB#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101PFAFB#V0 requirements.
6.How does Aetrix verify that R5F101PFAFB#V0 is sourced from the original manufacturer or authorized distributors?
All R5F101PFAFB#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 R5F101PFAFB#V0 meets industry standards.
7.What is the process for return or replacement of R5F101PFAFB#V0?
All R5F101PFAFB#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101PFAFB#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 R5F101PFAFB#V0 part is unused and in its original packaging.
Return procedure for R5F101PFAFB#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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