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Renesas R5F101FEAFP#X0
- Part No.:
- R5F101FEAFP#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F101FEAFP#X0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 44LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,147
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Product details
Overview
R5F101FEAFP#X0 from Renesas is a 44-pin LQFP-44, 16-bit RL78/G13 microcontroller with 64 KB flash memory, 4 KB data flash, 4 KB RAM, and true low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD mode), designed for battery-powered industrial sensors and smart metering interfaces.
For engineers reviewing the R5F101FEAFP#X0 datasheet, R5F101FEAFP#X0 pinout, R5F101FEAFP#X0 application, or R5F101FEAFP#X0 equivalent, key selection criteria include its 32 MHz max CPU speed, integrated 10-bit 26-channel ADC, real-time clock with calendar/alarm, and support for LIN-bus UART communication in compact industrial-grade packaging.
Technical Context
The R5F101FEAFP#X0 implements the RL78 CISC CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz HS mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates a 12-bit interval timer, 16-bit timer array (12 channels), and hardware multiplier/divider for embedded control math.
Its peripheral set includes three I²C/Simplified I²C channels, two UART/LIN interfaces, two CSI (SPI-compatible) channels, and DMA controller with 4 channels - enabling concurrent sensor data acquisition, serial telemetry, and background flash rewriting without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz - delivers 41 DMIPS for real-time control loop execution |
| Memory Configuration | 64 KB code flash + 4 KB data flash + 4 KB RAM - supports firmware updates and parameter logging |
| ADC Resolution & Channels | 10-bit resolution with up to 26 analog inputs - enables multi-sensor monitoring in single-chip designs |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.57 μA), SNOOZE - extends battery life in intermittent-sensing applications |
| Real-Time Clock | Calendar function (99-year range), alarm, and clock correction - eliminates external RTC IC in time-stamped logging |
| Operating Voltage Range | 1.6 V to 5.5 V - compatible with coin cells, Li-ion, and industrial 3.3/5 V rails |
Pinout & Package
Package: 44-pin LQFP (10 × 10 mm, 0.8-mm pitch), RoHS-compliant, industrial temperature grade (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI clock / I²C clock | Shared pin for synchronous serial communication - reduces pin count in mixed-interface systems |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI input / UART receive / I²C data | Multi-function I/O supports debug (TOOLRxD), sensor comms (SPI/I²C), and host interface (UART) |
| P20/ANI0/AVREFP | Analog input 0 / ADC reference positive | Dual-role pin enables precision ADC measurements with internal or external reference configuration |
| P21/ANI1/AVREFM | Analog input 1 / ADC reference negative | Allows differential ADC measurement or AVSS-referenced single-ended sensing |
| P22/ANI2 | Analog input 2 | Additional channel for temperature, voltage, or current sensing without external mux |
| VDD, VSS | Power supply and ground | Dedicated power pins ensure stable core/peripheral operation across full voltage range |
Key Features
| Feature | Design Value |
|---|---|
| Self-programming flash | Enables field firmware updates via boot swap and flash shield window - no external programmer required |
| Background data flash rewrite | BGO allows CPU to execute code while writing 4 KB data flash - critical for uninterrupted logging |
| On-chip voltage detector (LVD) | 14-level selectable reset/interrupt threshold - protects against brown-out in wide-input systems |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC operations - accelerates motor control and filtering |
| Different-potential I/O | Supports direct interface to 1.8 V, 2.5 V, or 3 V peripherals - avoids level-shifter components |
| On-chip key interrupt | Hardware scan of up to 8 keys with wake-up capability - reduces MCU polling overhead in HMI designs |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Compact electricity/water/gas meter with pulse counting, tamper detection, and wireless telemetry. IC Role / Device Role / Timing Role: Main system controller handling metrology calculations, secure data storage, and LIN/UART communication to concentrator. Use Value: Integrated 10-bit ADC, RTC calendar, and low-power STOP mode enable decade-long battery life with hourly timestamped readings. |
Use Scenario: Wireless node monitoring temperature, humidity, and vibration in factory equipment. IC Role / Device Role / Timing Role: Sensor fusion hub acquiring analog/digital inputs, running local diagnostics, and transmitting via UART-to-LoRa bridge. Use Value: 26-channel ADC, 4 KB data flash for event logs, and SNOOZE mode allow sub-10 μA average current during sleep between 10-second sampling intervals. |
| Home Appliance Control | Building Automation Panel |
|
Use Scenario: Washing machine main board managing motor drive, water valves, user interface, and safety interlocks. IC Role / Device Role / Timing Role: Real-time executor of PID loops, fault monitoring, and LED/display control with buzzer output. Use Value: Hardware multiplier and 12-bit interval timer provide deterministic timing for motor commutation and cycle timing without software overhead. |
Use Scenario: HVAC control panel with thermostat, fan speed control, and occupancy sensor integration. IC Role / Device Role / Timing Role: Central coordinator for analog sensor reads, relay actuation, IR remote decoding, and RS-485 Modbus gateway. Use Value: Three I²C channels manage multiple environmental sensors; UART with LIN support enables legacy building bus compatibility. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101FEAFP#V0 | Same silicon, tray packaging instead of embossed tape | No functional difference; suited for manual prototyping or low-volume assembly | Select #V0 for engineering samples or small-batch builds where tape-and-reel is unnecessary |
| R5F101FEAFP#50 | Identical electrical specs and pinout; differs only in tape carrier material and reel orientation | Compatible with same SMT pick-and-place machines but requires different feeder setup | Choose #50 when sourcing from distributors with optimized logistics for that tape format |
Compared with R5F101FEAFP#X0, the #V0 variant offers identical performance in non-automated environments, while the #50 variant maintains full functional equivalence with minor packaging logistics adjustments - both preserve the 64 KB flash, 4 KB RAM, and low-power architecture essential for industrial edge nodes.
Availability
R5F101FEAFP#X0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and building automation panels requiring stable component supply across extended product lifecycles.
Supply support for R5F101FEAFP#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, and power solutions for automotive, industrial, and IoT markets.
The RL78/G13 family targets cost-sensitive, ultra-low-power embedded applications - delivering high integration and energy efficiency for battery-operated and energy-harvesting systems.
FAQ
What is the maximum operating frequency of the R5F101FEAFP#X0?
The R5F101FEAFP#X0 operates at up to 32 MHz using its high-speed on-chip oscillator, achieving 41 DMIPS performance. Its minimum instruction execution time is 0.03125 μs under these conditions, enabling responsive real-time control in applications like motor drives and sensor fusion - all while maintaining the RL78/G13's ultra-low-power profile.
Does the R5F101FEAFP#X0 include an integrated ADC, and what are its specifications?
Yes, the R5F101FEAFP#X0 integrates a 10-bit successive-approximation ADC with up to 26 analog input channels and an internal 1.45 V reference voltage. It supports simultaneous sampling across multiple channels and operates across the full 1.6 V to 5.5 V supply range - making it suitable for direct interfacing with thermistors, current shunts, and voltage dividers in industrial monitoring systems.
Can the R5F101FEAFP#X0 perform background data flash writes while executing program code?
Yes, the R5F101FEAFP#X0 supports Background Operation (BGO) for data flash memory. This allows the CPU to continue executing instructions from program memory while rewriting the 4 KB data flash - essential for continuous data logging in battery-powered devices without interrupting real-time tasks or user interface responsiveness.
What low-power modes does the R5F101FEAFP#X0 support, and what are their typical current draws?
The R5F101FEAFP#X0 supports HALT (66 μA/MHz), STOP (0.57 μA with RTC + LVD active), and SNOOZE modes. In STOP mode, it maintains real-time clock operation and low-voltage detection with minimal current draw - ideal for applications requiring long-term battery operation with periodic wake-up events, such as environmental sensor beacons or security system standby states.
Is the R5F101FEAFP#X0 pin-compatible with other RL78/G13 variants in the same package?
Yes, the R5F101FEAFP#X0 shares identical pinout and footprint with all 44-pin LQFP RL78/G13 devices, including R5F100FAAFP#X0 and R5F101FAAFP#X0. This enables drop-in replacement within the same memory/feature tier - though users must verify flash size, data flash presence, and peripheral enablement in software, as those vary across part numbers despite mechanical compatibility.
R5F101FEAFP#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-LQFP
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- 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:
- 31
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K 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:
R5F101FEAFP#X0 FAQ
1.How can I place an order for R5F101FEAFP#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101FEAFP#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 R5F101FEAFP#X0 reliable?
The price and inventory of R5F101FEAFP#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101FEAFP#X0 is usually 5 days.
3.What payment methods are accepted for R5F101FEAFP#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101FEAFP#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101FEAFP#X0?
R5F101FEAFP#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101FEAFP#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 R5F101FEAFP#X0?
For technical support, including R5F101FEAFP#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101FEAFP#X0 requirements.
6.How does Aetrix verify that R5F101FEAFP#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101FEAFP#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 R5F101FEAFP#X0 meets industry standards.
7.What is the process for return or replacement of R5F101FEAFP#X0?
All R5F101FEAFP#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101FEAFP#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 R5F101FEAFP#X0 part is unused and in its original packaging.
Return procedure for R5F101FEAFP#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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