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Renesas R5F101FCDFP#X0
- Part No.:
- R5F101FCDFP#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F101FCDFP#X0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 44LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,940
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Product details
Overview
R5F101FCDFP#X0 from Renesas is a 44-pin LQFP-44, 32 MHz RL78/G13 16-bit microcontroller with 64 KB flash, 4 KB data flash, and 4 KB RAM, operating from 1.6 V to 5.5 V. It delivers 41 DMIPS, supports HALT/STOP/SNOOZE low-power modes (0.57 μA RTC+LVD), and integrates UART, I²C, CSI, 16-bit timers, 10-bit ADC (24 channels), and RTC - deployed in industrial sensor nodes and battery-powered control modules.
For engineers reviewing the R5F101FCDFP#X0 datasheet, R5F101FCDFP#X0 pinout, R5F101FCDFP#X0 application, or R5F101FCDFP#X0 equivalent, key selection criteria include its 44-pin LQFP package, absence of on-chip data flash (R5F101x series), -40°C to +85°C industrial temperature grade (D suffix), and compatibility with Renesas' RL78 toolchain and E2 studio for low-power embedded firmware development.
Technical Context
The R5F101FCDFP#X0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 μs at 32 MHz to 30.5 μs at 32.768 kHz). It uses a single-supply 1.6–5.5 V rail and includes an on-chip high-accuracy ±1.0% oscillator (32/24/16 MHz options) and dedicated low-speed oscillator for watchdog and RTC.
Its peripheral set includes up to 24-channel 10-bit ADC with internal 1.45 V reference and temperature sensor, 3–10-channel I²C/Simplified I²C, 2–4-channel UART/LIN, 2–8-channel CSI, 8–16-channel 16-bit timer, real-time clock with calendar/alarm, and DMA controller with 2/4 channels supporting 2-clock transfers between SFR and RAM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 41 DMIPS @ 32 MHz |
| Flash Memory | 64 KB code flash (1 KB block size); no on-chip data flash (R5F101x series) |
| RAM | 4 KB on-chip RAM; supports BGO during data flash programming (not applicable here) |
| Supply Voltage | 1.6 V to 5.5 V single supply; enables direct interface with 1.8/2.5/3.0 V peripherals |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA w/ RTC+LVD), SNOOZE - optimized for intermittent sensing |
| ADC | 10-bit resolution, 24 analog inputs, internal 1.45 V reference, integrated temperature sensor |
| Timers | Up to 16 × 16-bit timers, 1 × 12-bit interval timer, 1 × RTC (99-year calendar, alarm, correction) |
Pinout & Package
LQFP-44 package (10 mm × 10 mm, 0.80 mm pitch), RoHS-compliant, industrial-grade (-40°C to +85°C).
| 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 mixed-voltage I/O |
| P10/SCK00/SCL00 | Port 10 / SPI clock / I²C clock | Multi-function pin enabling hardware SPI master/slave or I²C bus communication |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Port 11 / SPI input / UART RX / debug RX / I²C data | Shared serial interface pin supporting multiple protocols; TOOLRxD enables on-chip debug |
| P12/SO00/TxD0/TOOLTxD/SDA00 | Port 12 / SPI output / UART TX / debug TX / I²C data | Enables full-duplex UART, SPI, or I²C operation; critical for bootloader and field updates |
| P13/INTP0/ANI3 | External interrupt / analog input 3 | Combines wake-up-capable edge-triggered interrupt with ADC channel for event-driven sensing |
| P14/INTP1/ANI4 | External interrupt / analog input 4 | Second interrupt-capable analog input; supports low-latency response to external analog events |
| P15/INTP2/ANI5 | External interrupt / analog input 5 | Third interrupt/analog pin; enables multi-sensor trigger without polling overhead |
| P20/ANI0/AVREFP | Analog input 0 / ADC reference positive | Configurable as primary ADC input or precision reference voltage source for ratiometric measurements |
| P21/ANI1/AVREFM | Analog input 1 / ADC reference negative | Provides differential reference capability; enables true differential ADC mode with P20 |
| P22/ANI2 | Analog input 2 | Dedicated analog input; usable with internal temperature sensor or external signal conditioning |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power operation | 0.57 μA in STOP mode with RTC + LVD active - extends battery life in metering and IoT endpoints |
| Hardware-accelerated math | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC units reduce firmware cycle count for control algorithms |
| Flexible clock system | High-accuracy ±1.0% on-chip oscillator (32 MHz max) eliminates external crystal cost and board space |
| Robust debug & programming | On-chip debug interface with TOOLRxD/TOOLTxD pins enables in-system programming without JTAG header |
| Mixed-voltage I/O | I/O ports support 1.8/2.5/3.0 V logic levels directly - simplifies interfacing with modern sensors and PMICs |
| Real-time clock with calendar | RTC provides 99-year date/time tracking, alarm, and auto-correction - essential for time-stamped logging |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Utility-grade electricity meter with tamper detection, pulse counting, and time-of-use billing. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, RTC-based tariff switching, and secure UART communication to HAN module. Use Value: 0.57 μA STOP mode enables >10-year battery backup for RTC/clock; 24-channel ADC supports simultaneous voltage/current/temperature acquisition. |
Use Scenario: Wireless vibration/temperature node in predictive maintenance systems with local FFT preprocessing. IC Role / Device Role / Timing Role: Edge processing unit executing sensor fusion, threshold-triggered wake-up, and UART-to-LoRaWAN protocol translation. Use Value: 41 DMIPS at 32 MHz enables real-time 16-bit FFT; SNOOZE mode reduces average current during idle intervals without sacrificing responsiveness. |
| Home Appliance Control | Building Automation Panel |
|
Use Scenario: Washing machine main control board managing motor drive, water level sensing, and user interface. IC Role / Device Role / Timing Role: Central MCU coordinating PWM motor control, 10-bit ADC for pressure/temperature feedback, and I²C display driver interface. Use Value: 16 × 16-bit timers provide precise phase-shifted PWM for BLDC commutation; mixed-voltage I/O interfaces directly with 3.3 V touch controller and 5 V solenoid drivers. |
Use Scenario: HVAC zone controller with occupancy sensing, damper actuation, and BACnet MS/TP communication. IC Role / Device Role / Timing Role: Protocol-aware controller handling RS-485 UART framing, RTC-scheduled ventilation cycles, and analog input calibration. Use Value: On-chip LIN support enables legacy automotive-grade sensor integration; 1.6–5.5 V operation tolerates brown-out conditions in building power distribution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100FCDFP#X0 | Same 44-pin LQFP package and 64 KB flash, but includes 4 KB on-chip data flash and supports background operation (BGO) | Preferred where field firmware updates or parameter storage require nonvolatile data memory with concurrent execution | Select when data flash endurance (1M cycles) and BGO are required; otherwise R5F101FCDFP#X0 reduces cost and complexity |
| RL78/G14 R5F104BCDFP#X0 | RL78/G14 successor with 128 KB flash, 12 KB RAM, enhanced ADC (12-bit, 31 ch), and additional UART/I²C channels | Better suited for applications scaling beyond 64 KB code or requiring higher-resolution analog capture | Choose for future-proof designs needing more memory/peripherals; R5F101FCDFP#X0 remains optimal for cost-sensitive, stable-volume deployments |
Compared with R5F100FCDFP#X0, the R5F101FCDFP#X0 removes data flash to lower unit cost and simplify qualification, while retaining identical code flash, RAM, peripherals, and power profile - making it ideal for fixed-function control. Against RL78/G14, it trades scalability for proven reliability and lower BOM cost in mature industrial designs.
Availability
R5F101FCDFP#X0 is available at Aetrix Electronics and suitable for smart energy metering, industrial sensor nodes, home appliance control, building automation panels, and battery-powered telemetry requiring stable component supply across long production lifecycles.
Supply support for R5F101FCDFP#X0 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 enterprise applications.
The RL78/G13 family targets cost-sensitive, ultra-low-power general-purpose embedded control - balancing performance, integration, and energy efficiency for appliances, meters, and factory equipment.
FAQ
What is the flash memory configuration of the R5F101FCDFP#X0?
The R5F101FCDFP#X0 contains 64 KB of on-chip code flash memory organized in 1 KB blocks, with no integrated data flash (R5F101x series designation confirms this). It supports self-programming via boot swap and flash shield window functions, and requires external EEPROM or FRAM if persistent parameter storage is needed in the R5F101FCDFP#X0 design.
Does the R5F101FCDFP#X0 support hardware debugging?
Yes, the R5F101FCDFP#X0 includes an on-chip debug function accessible through dedicated TOOLRxD and TOOLTxD pins (P11 and P12), enabling full in-circuit debugging and programming without external JTAG adapters. This capability is fully supported by Renesas E2 studio and CS+ IDE for firmware development and validation of the R5F101FCDFP#X0.
What are the operating temperature and voltage ranges for the R5F101FCDFP#X0?
The R5F101FCDFP#X0 is rated for industrial operation from –40°C to +85°C (D-grade) and operates from a single 1.6 V to 5.5 V supply. Its I/O ports support different-potential interfacing (1.8/2.5/3.0 V), and the on-chip voltage detector (LVD) offers 14 selectable reset/interrupt thresholds - all critical for robust deployment of the R5F101FCDFP#X0 in harsh environments.
How many analog input channels does the R5F101FCDFP#X0 support?
The R5F101FCDFP#X0 features a 10-bit successive-approximation ADC with up to 24 analog input channels, including dedicated pins for AVREFP/AVREFM and internal temperature sensor/1.45 V reference. Channel selection is software-configurable, and conversions can be triggered by timers or external events - a key capability for sensor-rich applications using the R5F101FCDFP#X0.
Is the R5F101FCDFP#X0 pin-compatible with other RL78/G13 devices?
The R5F101FCDFP#X0 shares the same 44-pin LQFP-44 package (PLQP0044GC-A) and pinout with other RL78/G13 44-pin variants like R5F100FCDFP#X0 and R5F101FADFP#X0, but functional differences exist - notably the absence of data flash in R5F101FCDFP#X0. PCB layout is interchangeable, though firmware must account for missing data flash registers when migrating to the R5F101FCDFP#X0.
R5F101FCDFP#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-LQFP
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- 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:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K 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:
R5F101FCDFP#X0 FAQ
1.How can I place an order for R5F101FCDFP#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101FCDFP#X0 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 R5F101FCDFP#X0 reliable?
The price and inventory of R5F101FCDFP#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101FCDFP#X0 is usually 5 days.
3.What payment methods are accepted for R5F101FCDFP#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101FCDFP#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101FCDFP#X0?
R5F101FCDFP#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101FCDFP#X0 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 R5F101FCDFP#X0?
For technical support, including R5F101FCDFP#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101FCDFP#X0 requirements.
6.How does Aetrix verify that R5F101FCDFP#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101FCDFP#X0 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 R5F101FCDFP#X0 meets industry standards.
7.What is the process for return or replacement of R5F101FCDFP#X0?
All R5F101FCDFP#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101FCDFP#X0, 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 R5F101FCDFP#X0 part is unused and in its original packaging.
Return procedure for R5F101FCDFP#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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