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Renesas R5F101FFAFP#50
- Part No.:
- R5F101FFAFP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F101FFAFP#50.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 44LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
R5F101FFAFP#50 from Renesas is a 44-pin LQFP-44, 32 MHz RL78/G13 16-bit microcontroller with 96 KB flash, 8 KB RAM, no data flash, and industrial-grade operation (−40°C to +85°C). It integrates 16-bit timer arrays, 10-bit ADC (12 channels), UART/SPI/I²C interfaces, RTC, and ultra-low-power modes (0.57 μA in STOP with RTC+LVD) for battery-powered sensor nodes and motor control.
For engineers reviewing the R5F101FFAFP#50 datasheet, R5F101FFAFP#50 pinout, R5F101FFAFP#50 application, or R5F101FFAFP#50 equivalent, key selection criteria include its 96 KB code flash / zero data flash configuration, LQFP-44 package with 32 MHz max CPU clock, integrated RTC and 12-channel 10-bit ADC, and support for SNOOZE mode DMA transfers - all critical for cost-sensitive industrial control and smart appliance designs.
Technical Context
The R5F101FFAFP#50 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). It features dual-voltage I/O (1.8/2.5/3.0 V interface compatibility) and on-chip BCD correction for metering applications.
Its power management includes hardware HALT/STOP/SNOOZE modes, on-chip POR and 14-level LVD, and background data flash programming capability - though this part omits data flash memory entirely per its "101" family designation. The 2-channel DMA controller enables low-CPU-load peripheral-to-RAM transfers using only 2 clocks per 8/16-bit SFR access.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time response in motor control loops. |
| Max Clock Frequency | 32 MHz using high-accuracy on-chip oscillator (±1.0% over −20 to +85°C); eliminates external crystal for cost-sensitive designs. |
| Flash Memory | 96 KB code flash (1 KB block size); sufficient for BLE stack + application firmware in compact IoT endpoints. |
| RAM | 8 KB on-chip RAM; supports simultaneous RTOS task stacks, communication buffers, and sensor data logging. |
| ADC | 10-bit resolution, 12 analog input channels; enables multi-sensor monitoring (temperature, voltage, current) without external mux. |
| Low-Power Modes | 0.57 μA in STOP mode with RTC + LVD active; extends battery life to years in wireless sensor transmitters. |
| Operating Temperature | −40°C to +85°C (Industrial D-grade); qualified for factory automation and HVAC control environments. |
| Package | LQFP-44 (10 × 10 mm, 0.8 mm pitch); compatible with standard reflow processes and manual inspection. |
Pinout & Package
LQFP-44 (PLQP0044GC-A), 10 × 10 mm body, 0.8 mm lead pitch, exposed pad not present. Pin 1 marked by dot; pins numbered counterclockwise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD pins (Pins 10, 31) reduce IR drop; separate VSS (Pins 11, 32) improves noise immunity in mixed-signal operation. |
| P10/SCK00/SCL00 | Port 1 bit 0 / SPI clock / I²C clock | Multi-function pin enables shared PCB routing for SPI sensors and I²C peripherals - reduces layer count. |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Port 1 bit 1 / SPI input / UART RX / debug RX / I²C data | Combines debug, comms, and sensor interface on one pin; simplifies bring-up and field firmware updates. |
| P20/ANI0/AVREFP | Analog input 0 / ADC reference positive | Allows internal or external AVREFP selection; critical for precision current sensing with shunt resistors. |
| P21/ANI1/AVREFM | Analog input 1 / ADC reference negative | Enables ratiometric measurements and differential ADC configurations without external op-amps. |
| RESET | Active-low reset input | Accepts 1.6–5.5 V logic; supports push-button reset and watchdog recovery without level-shifting. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA with RTC + LVD active - enables decade-scale coin-cell operation in environmental monitors. |
| On-chip high-accuracy oscillator | ±1.0% accuracy (1.8–5.5 V, −20 to +85°C); removes crystal cost and board space in non-timing-critical apps. |
| Hardware RTC with calendar | 99-year calendar, alarm, and clock correction - supports time-stamped data logging in energy meters. |
| 12-channel 10-bit ADC | Configurable sampling rate up to 1.25 MSPS; captures fast transients in motor phase current sensing. |
| SNOOZE mode DMA | Permits UART/SPI receive while CPU sleeps; cuts active time by >70% in polling-based comms protocols. |
| Multi-voltage I/O | Supports 1.8/2.5/3.0 V logic levels; interfaces directly with low-voltage sensors and FPGAs without level shifters. |
Applications
| Smart Thermostats | Industrial Motor Drives |
|---|---|
|
Use Scenario: Wireless HVAC controller with temperature/humidity sensing, display, and Zigbee/Thread radio interface. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition, UI rendering, and RF coexistence timing. Use Value: 96 KB flash hosts full Zigbee stack + application; 0.57 μA STOP mode extends AA battery life beyond 2 years. |
Use Scenario: Compact BLDC motor driver for pumps and fans with Hall-effect commutation and fault protection. IC Role / Device Role / Timing Role: Real-time motor control unit executing FOC algorithms and PWM generation at 20 kHz. Use Value: 32 MHz CPU delivers 41 DMIPS for fast PI loop execution; 12-channel ADC samples all three phase currents simultaneously. |
| Energy Meters | Asset Tracking Beacons |
|
Use Scenario: DIN-rail mounted electricity meter with metrology IC interface, LCD, and PLC/RF communication. IC Role / Device Role / Timing Role: System manager handling time-of-use billing, tamper detection, and secure firmware updates. Use Value: Hardware RTC with calendar ensures accurate billing intervals; BCD correction simplifies kWh accumulation math. |
Use Scenario: Battery-powered GPS tracker with motion wake-up, cellular modem control, and temperature logging. IC Role / Device Role / Timing Role: Low-power host MCU coordinating GPS fix acquisition, modem sleep/wake cycles, and sensor sampling. Use Value: SNOOZE mode allows UART RX from GPS module while CPU sleeps; 0.57 μA STOP extends 2000 mAh battery to >5 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100FFAFP#50 | Same 96 KB flash, 8 KB RAM, LQFP-44 package, but includes 4 KB data flash and supports background rewriting. | Preferred where field firmware updates or parameter storage require nonvolatile data retention between power cycles. | Select R5F100FFAFP#50 if data logging or secure boot key storage is required; otherwise R5F101FFAFP#50 reduces cost and complexity. |
| STM32F042F6P6 | ARM Cortex-M0+, 32 KB flash, 6 KB RAM, 48-pin TSSOP; lacks integrated RTC calendar and ultra-low-power STOP mode (1.8 μA typical). | Better suited for USB-enabled human interface devices than long-life battery applications. | Choose STM32F042F6P6 only when ARM toolchain alignment or USB device functionality outweighs power and RTC advantages of R5F101FFAFP#50. |
Compared with R5F100FFAFP#50, the R5F101FFAFP#50 trades data flash persistence for lower cost and reduced firmware overhead; versus STM32F042F6P6, it delivers 3× lower STOP current and hardware calendar RTC - making it superior for decade-life sensor nodes and time-aware industrial controllers.
Availability
R5F101FFAFP#50 is available at Aetrix Electronics and suitable for industrial motor drives, smart thermostats, and energy metering systems requiring stable component supply across multi-year production cycles.
Supply support for R5F101FFAFP#50 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 Japanese semiconductor leader specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.
The RL78/G13 family targets cost-sensitive, ultra-low-power general-purpose applications - delivering high integration and robustness for appliances, building controls, and industrial sensors without sacrificing development efficiency.
FAQ
Does R5F101FFAFP#50 include data flash memory?
No, R5F101FFAFP#50 does not include data flash memory. Its "101" family designation explicitly indicates zero data flash capacity, unlike "100" variants (e.g., R5F100FFAFP#50) which integrate 4 KB. This omission reduces cost and simplifies firmware design where parameter storage is handled externally or via code flash emulation.
What is the maximum operating frequency of R5F101FFAFP#50?
The R5F101FFAFP#50 operates at up to 32 MHz using its high-accuracy on-chip oscillator, which maintains ±1.0% tolerance across 1.8–5.5 V supply and −20 to +85°C ambient. External crystals are optional and used only when tighter timing stability is required beyond on-chip oscillator specs.
Which package type does R5F101FFAFP#50 use?
R5F101FFAFP#50 uses a 44-pin LQFP package (PLQP0044GC-A), measuring 10 × 10 mm with 0.8 mm lead pitch. It is RoHS-compliant, halogen-free, and qualified for industrial temperature range (−40°C to +85°C).
Can R5F101FFAFP#50 operate from a 1.8 V supply?
Yes, R5F101FFAFP#50 supports 1.6 V to 5.5 V single-supply operation. At 1.8 V, it achieves up to 16 MHz CPU speed (per datasheet DC characteristics), enabling ultra-low-voltage battery operation while maintaining full peripheral functionality including ADC and timers.
How many analog input channels does R5F101FFAFP#50 support?
R5F101FFAFP#50 supports 12 analog input channels for its 10-bit ADC. These map to dedicated ANI0–ANI11 pins and include AVREFP/AVREFM for flexible reference configuration - sufficient for simultaneous monitoring of voltage, current, temperature, and auxiliary sensors in motor control systems.
R5F101FFAFP#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-LQFP
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 31
- 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 10x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101FFAFP#50 FAQ
1.How can I place an order for R5F101FFAFP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101FFAFP#50 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 R5F101FFAFP#50 reliable?
The price and inventory of R5F101FFAFP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101FFAFP#50 is usually 5 days.
3.What payment methods are accepted for R5F101FFAFP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101FFAFP#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101FFAFP#50?
R5F101FFAFP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101FFAFP#50 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 R5F101FFAFP#50?
For technical support, including R5F101FFAFP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101FFAFP#50 requirements.
6.How does Aetrix verify that R5F101FFAFP#50 is sourced from the original manufacturer or authorized distributors?
All R5F101FFAFP#50 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 R5F101FFAFP#50 meets industry standards.
7.What is the process for return or replacement of R5F101FFAFP#50?
All R5F101FFAFP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101FFAFP#50, 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 R5F101FFAFP#50 part is unused and in its original packaging.
Return procedure for R5F101FFAFP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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