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Renesas R5F101FKAFP#10
- Part No.:
- R5F101FKAFP#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F101FKAFP#10.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 44LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,245
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Product details
Overview
R5F101FKAFP#10 from Renesas is a 44-pin LQFP-44, 32-bit RL78/G13 microcontroller with 96 KB flash, 8 KB RAM, and no data flash memory, operating at up to 32 MHz (41 DMIPS), supporting ultra-low-power modes (0.57 μA RTC+LVD), 10-bit ADC (24 channels), and multiple serial interfaces (UART, I²C, CSI) for industrial control and sensor node applications.
For engineers reviewing the R5F101FKAFP#10 datasheet, R5F101FKAFP#10 pinout, R5F101FKAFP#10 application, or R5F101FKAFP#10 equivalent, this page delivers verified technical context, package mapping, real-world use cases, and validated alternative options - all aligned to the RL78/G13 family's documented specifications and industrial temperature grade (-40°C to +85°C).
Technical Context
The R5F101FKAFP#10 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 μs @ 32 MHz to 30.5 μs @ 32.768 kHz). It integrates a high-accuracy ±1.0% on-chip oscillator (selectable 1–32 MHz), 16-bit timer array (12 channels), real-time clock with calendar/alarm, and watchdog timer with dedicated low-speed oscillator.
Power management includes HALT, STOP, and SNOOZE modes, POR, and 14-level LVD with interrupt/reset selection. Memory subsystem supports background operation during data flash rewrite (not applicable here, as data flash is absent), self-programming with boot swap, and flash shield window security.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 32-bit CISC with 3-stage pipeline; enables deterministic real-time response and efficient code density for embedded control. |
| Max Operating Frequency | 32 MHz (41 DMIPS); delivers sufficient throughput for motor control, sensor fusion, and protocol stack execution. |
| Flash / RAM / Data Flash | 96 KB code flash / 8 KB RAM / 0 KB data flash; suitable for firmware with moderate storage needs and no persistent parameter logging. |
| Supply Voltage Range | 1.6 V to 5.5 V; allows direct interface with 3.3 V or 5 V peripherals without level-shifting in many designs. |
| ADC Resolution & Channels | 10-bit resolution, 24 analog input channels; supports multi-sensor monitoring (e.g., temperature, voltage, current) with internal reference (1.45 V). |
| Operating Temperature | -40°C to +85°C (Industrial grade D); qualified for deployment in factory automation, HVAC, and power metering environments. |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.57 μA with RTC+LVD active); enables battery-powered operation for >1 year in periodic wake-up sensor nodes. |
Pinout & Package
Package: 44-pin LQFP (10 × 10 mm, 0.8-mm pitch), RoHS-compliant, surface-mount. Pin 1 marked by dot or notch; thermal 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 single-supply operation from 1.6–5.5 V. |
| P00–P07, P10–P17, P20–P27, P30–P37, P40–P43 | General-purpose I/O ports | 44 total I/O pins; configurable as N-ch open drain (6 V tolerant), TTL input, or pull-up; supports 1.8/2.5/3 V logic interfacing. |
| P10/SCK00/SCL00 | Serial clock input/output | Shared function pin for CSI0 (SPI-like) and I²C0 clock; enables dual-protocol peripheral connectivity without extra GPIO. |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Serial data input / UART receive / I²C data | Multi-function pin supporting debug (TOOLRxD), communication (RxD0), and bus interface (SDA00); simplifies board routing. |
| P20/ANI0/AVREFP | Analog input / ADC reference positive | Primary ADC channel 0 input and selectable AVREFP source; allows ratiometric or external reference measurement configurations. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external supervisor ICs or manual reset buttons. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA with RTC and LVD active - enables decade-scale coin-cell operation in maintenance-free IoT endpoints. |
| On-chip high-accuracy oscillator | ±1.0% over -20°C to +85°C (VDD = 1.8–5.5 V) - eliminates external crystal for cost-sensitive timing-critical applications like metering. |
| Hardware DMA controller | 4-channel DMA with 2-clock transfers between SFR and RAM - offloads CPU during ADC sampling or UART buffering, reducing latency. |
| Integrated real-time clock (RTC) | Full calendar (99-year range), alarm, and clock correction - provides timestamping and scheduling without external RTC IC or backup battery circuitry. |
| Multi-protocol serial interfaces | Up to 4 UART/LIN, 10 I²C/Simplified I²C, and 8 CSI channels - supports concurrent communication with sensors, displays, and host controllers. |
Applications
| Smart Energy Metering | Industrial Sensor Hub |
|---|---|
|
Use Scenario: Residential/utility electricity meter with pulse counting, voltage/current sensing, and RS-485 communication. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, energy calculation, tamper detection, and Modbus RTU transmission. Use Value: 10-bit ADC with 24 channels captures simultaneous phase measurements; STOP-mode current <0.6 μA extends battery life during power outage logging. |
Use Scenario: DIN-rail mounted environmental monitor collecting temperature, humidity, CO₂, and vibration data. IC Role / Device Role / Timing Role: Central acquisition engine coordinating I²C sensor reads, UART diagnostics, and RTC-stamped data buffering. Use Value: Integrated RTC with calendar enables time-tagged event logging; 44-pin LQFP provides ample I/O for mixed analog/digital sensor expansion. |
| Home Appliance Control | Factory Automation Node |
|
Use Scenario: Washing machine mainboard controlling motor drivers, water valves, user interface, and safety interlocks. IC Role / Device Role / Timing Role: Real-time motion controller executing PID loops, reading hall-effect sensors, and driving PWM outputs. Use Value: 32 MHz operation delivers 41 DMIPS for fast loop closure; HALT mode reduces dynamic power to 66 μA/MHz during idle cycles. |
Use Scenario: Standalone IO-link master node aggregating signals from proximity switches, photoelectric sensors, and encoders. IC Role / Device Role / Timing Role: Protocol bridge translating IO-Link physical layer to UART/USB host, with precise timing for cyclic data exchange. Use Value: UART with LIN support enables direct connection to IO-Link transceivers; industrial temp grade (-40°C to +85°C) ensures reliability in harsh cabinet environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100FKAFP#10 | Same 44-pin LQFP package and 96 KB flash, but includes 8 KB data flash memory. | Required where firmware must store calibration data, device configuration, or usage logs in nonvolatile memory. | Select when field-updatable parameters or secure key storage are needed; otherwise R5F101FKAFP#10 reduces BOM cost and flash management complexity. |
| R5F101GKAFP#10 | Same footprint and no data flash, but offers 128 KB flash and 12 KB RAM. | Suitable for applications needing larger firmware (e.g., BLE stack integration, advanced UI rendering, or OTA update capability). | Choose when future firmware growth headroom or additional RAM for buffers/RTOS tasks is required; R5F101FKAFP#10 suffices for stable, lean firmware. |
Compared with R5F100FKAFP#10, the R5F101FKAFP#10 removes data flash overhead and simplifies programming flow; compared with R5F101GKAFP#10, it trades flash/RAM capacity for lower cost and power in resource-constrained deployments.
Availability
R5F101FKAFP#10 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart metering systems, and home appliance control requiring stable component supply, long-term lifecycle support, and industrial-grade temperature performance.
Supply support for R5F101FKAFP#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 product line delivers true low-power embedded control with integrated peripherals and robust industrial qualification - designed specifically for cost-sensitive, battery-operated, and thermally demanding applications.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating of the R5F101FKAFP#10?
The R5F101FKAFP#10 operates at up to 32 MHz and delivers 41 DMIPS (Dhrystone MIPS) performance. This metric reflects its real-world computational throughput under typical embedded workloads, enabling responsive execution of control algorithms, communication stacks, and signal processing routines without external acceleration.
Does the R5F101FKAFP#10 include data flash memory, and how does that affect firmware design?
No, the R5F101FKAFP#10 contains 96 KB of code flash and 8 KB of RAM but zero data flash memory. This means runtime parameters, calibration values, or event logs must be stored in external EEPROM/FRAM or managed in volatile RAM with battery backup - simplifying flash programming but requiring external nonvolatile storage for persistent data.
What are the supported low-power modes on the R5F101FKAFP#10, and what is the lowest achievable current draw?
The R5F101FKAFP#10 supports HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it draws just 0.57 μA - enabling multi-year operation on coin cells in infrequently awakened sensor nodes, while retaining calendar time and voltage-monitoring capability.
Which serial communication interfaces are available on the R5F101FKAFP#10, and how many instances does it support?
The R5F101FKAFP#10 integrates UART/LIN (up to 4 channels), I²C/Simplified I²C (up to 10 channels), and CSI (SPI-like, up to 8 channels). These are implemented in hardware with independent registers and interrupt vectors, allowing concurrent operation - for example, UART for host debugging, I²C for sensor reads, and CSI for display updates.
Is the R5F101FKAFP#10 qualified for industrial temperature operation, and what is its specified range?
Yes, the R5F101FKAFP#10 is rated for industrial ambient temperature operation from -40°C to +85°C (grade "D"). This qualification is confirmed in the RL78/G13 datasheet and applies to the full functional specification - including ADC accuracy, oscillator stability, and I/O drive strength - across the entire range.
R5F101FKAFP#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-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:
- 31
- Program Memory Size:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 24K 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:
R5F101FKAFP#10 FAQ
1.How can I place an order for R5F101FKAFP#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101FKAFP#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 R5F101FKAFP#10 reliable?
The price and inventory of R5F101FKAFP#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101FKAFP#10 is usually 5 days.
3.What payment methods are accepted for R5F101FKAFP#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101FKAFP#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101FKAFP#10?
R5F101FKAFP#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101FKAFP#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 R5F101FKAFP#10?
For technical support, including R5F101FKAFP#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101FKAFP#10 requirements.
6.How does Aetrix verify that R5F101FKAFP#10 is sourced from the original manufacturer or authorized distributors?
All R5F101FKAFP#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 R5F101FKAFP#10 meets industry standards.
7.What is the process for return or replacement of R5F101FKAFP#10?
All R5F101FKAFP#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101FKAFP#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 R5F101FKAFP#10 part is unused and in its original packaging.
Return procedure for R5F101FKAFP#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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