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Renesas R5F101FKDFP#V0
- Part No.:
- R5F101FKDFP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F101FKDFP#V0.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 44LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,839
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Product details
Overview
R5F101FKDFP#V0 from Renesas is a 44-pin LQFP-44, 32 MHz RL78/G13 16-bit microcontroller with 256 KB flash, 8 KB data flash, 20 KB RAM, and ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD). It integrates 16-bit timers, 10-bit ADC (24 channels), UART/LIN, I²C, CSI, RTC, and DMA for embedded control in industrial sensors and power management systems.
For engineers reviewing the R5F101FKDFP#V0 datasheet, R5F101FKDFP#V0 pinout, R5F101FKDFP#V0 application, or R5F101FKDFP#V0 equivalent, key selection criteria include its 256 KB code flash with self-programming, 44-pin LQFP package with 0.8-mm pitch, -40°C to +85°C industrial temperature grade (D), and integrated LIN-capable UART for automotive body electronics and smart actuators.
Technical Context
The R5F101FKDFP#V0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz), and features an on-chip high-accuracy ±1.0% oscillator across 1–32 MHz. It includes dedicated hardware for BGO (background operation) during data flash rewriting and supports STOP/HALT/SNOOZE low-power modes.
Its peripheral set includes up to 16 × 16-bit timers, one 12-bit interval timer, calendar-based RTC with alarm/correction, 10-bit ADC with internal 1.45 V reference and temperature sensor, and three serial interfaces (CSI, UART/LIN, I²C) configurable across multiple channels - all operating within 1.6–5.5 V supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Clock | 32 MHz using on-chip high-speed oscillator (±1.0% accuracy) |
| Flash Memory | 256 KB code flash with block erase (1 KB), security lock, and boot swap |
| Data Flash | 8 KB data flash with background operation (BGO) and 1M rewrite cycles |
| RAM | 20 KB on-chip RAM, including dedicated areas for flash library use (start address FAF00H) |
| ADC | 10-bit resolution, 24 analog input channels, internal 1.45 V reference, and integrated temperature sensor |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA with RTC+LVD), SNOOZE for low-latency wake-up |
Pinout & Package
Package: 44-pin LQFP (10 × 10 mm, 0.8-mm pitch), RoHS-compliant, tray packaging (#V0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Port 10 / SPI clock / I²C clock | Multi-function pin supporting master/slave SPI timing or I²C bus clock generation |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Port 11 / SPI input / UART receive / debug RX / I²C data | Shared serial interface pin enabling flexible peripheral routing without external muxing |
| P12/SO00/TxD0/TOOLTxD/SDA00 | Port 12 / SPI output / UART transmit / debug TX / I²C data | Enables full-duplex UART or SPI communication and dual-role I²C data line |
| P13/INTP0/TOOL0 | Port 13 / external interrupt / debug signal | Dedicated interrupt input with configurable edge sensitivity and debug probe support |
| P14/INTP1/TOOL1 | Port 14 / external interrupt / debug signal | Second independent interrupt input for real-time event handling and debug trace |
| P15/INTP2/TOOL2 | Port 15 / external interrupt / debug signal | Third interrupt input supporting priority-based nested interrupt handling |
| P20/ANI0/AVREFP | Analog input 0 / ADC reference positive | Configurable as first ADC channel or positive reference voltage source for precision measurements |
| P21/ANI1/AVREFM | Analog input 1 / ADC reference negative | Supports differential ADC mode or negative reference for ratiometric sensing |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.57 μA in STOP mode with RTC + LVD active enables battery-powered operation for >10 years |
| Self-programmable flash | On-chip flash shield window and boot swap allow secure firmware updates without external programmer |
| Background data flash rewrite | BGO enables concurrent program execution and data logging during flash writes - no CPU stall |
| Integrated LIN-capable UART | UART with automatic LIN break detection and sync field generation simplifies automotive sub-node design |
| Hardware-accelerated math | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC units reduce firmware overhead for control algorithms |
Applications
| Industrial Sensor Node | Smart Power Outlet |
|---|---|
|
Use Scenario: Battery-powered environmental monitor with temperature, humidity, and CO₂ sensing deployed in factory HVAC ducts. IC Role / Device Role / Timing Role: Main system controller managing sensor polling, data preprocessing, low-power scheduling, and wireless transmission timing via RTC-triggered wake-up. Use Value: 0.57 μA STOP mode extends 2× AA battery life beyond 5 years; 24-channel ADC supports multi-sensor analog front-end without external MUX. |
Use Scenario: DIN-rail mounted AC power outlet with energy metering, relay control, and RS-485 communication for building automation. IC Role / Device Role / Timing Role: Real-time load monitoring controller coordinating ADC sampling, zero-cross detection, relay timing, and MODBUS RTU framing. Use Value: 32 MHz CPU delivers 41 DMIPS for fast RMS calculation; integrated 16-bit timers ensure precise 50/60 Hz phase-aligned switching. |
| Automotive Body Control Module | Programmable Logic Controller (PLC) I/O Expander |
|
Use Scenario: Door module controlling window lift, mirror fold, and interior lighting with LIN communication to central ECU. IC Role / Device Role / Timing Role: LIN slave node processor handling PWM motor control, switch debouncing, and LIN protocol stack with hardware assist. Use Value: UART with built-in LIN break detection eliminates external transceiver for cost-sensitive nodes; N-ch open-drain I/O drives 12 V loads directly. |
Use Scenario: Modular PLC base unit adding 16 digital inputs and 8 relay outputs via local expansion bus. IC Role / Device Role / Timing Role: Local I/O manager performing high-speed bit-banging, debounce filtering, and cyclic redundancy-checked status reporting. Use Value: 44 GPIO pins with programmable pull-ups/downs and interrupt-on-change simplify discrete I/O interface; DMA offloads data transfer from CPU during scan cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101FLDFP#V0 | Same 44-pin LQFP package, identical peripherals, but 384 KB flash / 8 KB data flash / 24 KB RAM | Required where firmware image size exceeds 256 KB or extended data logging memory needed | Select when future firmware growth or larger configuration tables demand >256 KB code space |
| R5F100FKDFP#V0 | Pin-compatible 44-pin LQFP variant with 256 KB flash but includes 8 KB data flash and 20 KB RAM - same memory map | Used where on-chip data flash is required for EEPROM-like parameter storage (e.g., calibration data) | Choose R5F100FKDFP#V0 only if data flash persistence is mandatory; R5F101FKDFP#V0 omits it to reduce cost |
Compared with R5F101FLDFP#V0, this part trades flash/RAM headroom for lower cost and footprint-equivalent integration; versus R5F100FKDFP#V0, it removes data flash to simplify qualification while retaining identical code flash, timing, and peripheral compatibility - ideal for fixed-function deployments.
Availability
R5F101FKDFP#V0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart power outlets, and automotive body electronics requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for R5F101FKDFP#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 industrial, automotive, and infrastructure 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 always-on control systems.
FAQ
What is the operating temperature range for R5F101FKDFP#V0?
The R5F101FKDFP#V0 is rated for industrial operation from –40°C to +85°C (D-grade), validated per Renesas specification R01DS0131EJ0380. This range supports deployment in factory automation, outdoor metering, and under-hood automotive auxiliary modules where ambient thermal stress exceeds consumer-grade limits.
Does R5F101FKDFP#V0 include data flash memory?
No, R5F101FKDFP#V0 does not include on-chip data flash memory. The "101" prefix in the Renesas part numbering convention explicitly denotes absence of data flash, distinguishing it from "100" variants like R5F100FKDFP#V0 which integrate 8 KB data flash for nonvolatile parameter storage.
What debug interface does R5F101FKDFP#V0 support?
R5F101FKDFP#V0 supports on-chip debugging via the single-wire debug interface (SWD) using dedicated TOOLx pins (P13–P15). It is compatible with Renesas E2 emulator and third-party tools supporting RL78 SWD protocol, enabling full breakpoint, watchpoint, and memory inspection capabilities without JTAG header overhead.
Can R5F101FKDFP#V0 operate from a 1.8 V supply?
Yes, R5F101FKDFP#V0 supports 1.6 V to 5.5 V single-supply operation. At 1.8 V, it maintains full functionality including 32 MHz operation (with reduced current), ADC conversion, and peripheral operation - enabling direct interface with 1.8 V logic families and low-voltage battery systems.
Is R5F101FKDFP#V0 pin-compatible with other RL78/G13 44-pin variants?
Yes, all RL78/G13 44-pin LQFP variants - including R5F100FKDFP#V0, R5F101FKDFP#V0, and R5F101FLDFP#V0 - share identical pinout, package dimensions (10 × 10 mm, 0.8-mm pitch), and electrical characteristics. This allows drop-in replacement for memory or feature upgrades without PCB redesign.
R5F101FKDFP#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Obsolete
- 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:
- 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:
R5F101FKDFP#V0 FAQ
1.How can I place an order for R5F101FKDFP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101FKDFP#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 R5F101FKDFP#V0 reliable?
The price and inventory of R5F101FKDFP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101FKDFP#V0 is usually 5 days.
3.What payment methods are accepted for R5F101FKDFP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101FKDFP#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101FKDFP#V0?
R5F101FKDFP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101FKDFP#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 R5F101FKDFP#V0?
For technical support, including R5F101FKDFP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101FKDFP#V0 requirements.
6.How does Aetrix verify that R5F101FKDFP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F101FKDFP#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 R5F101FKDFP#V0 meets industry standards.
7.What is the process for return or replacement of R5F101FKDFP#V0?
All R5F101FKDFP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101FKDFP#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 R5F101FKDFP#V0 part is unused and in its original packaging.
Return procedure for R5F101FKDFP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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