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Renesas R5F101EFDNA#U0
- Part No.:
- R5F101EFDNA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
R5F101EFDNA#U0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 40HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,367
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Product details
Overview
R5F101EFDNA#U0 from Renesas is a 40-pin HWQFN-packaged RL78/G13 16-bit microcontroller with 64 KB flash, 4 KB data flash, 2 KB RAM, 10-bit ADC (26 channels), and real-time clock - designed for ultra-low-power industrial sensor nodes and battery-powered control systems operating from 1.6 V to 5.5 V.
For engineers reviewing the R5F101EFDNA#U0 datasheet, R5F101EFDNA#U0 pinout, R5F101EFDNA#U0 application, or R5F101EFDNA#U0 equivalent, key selection criteria include its 0.57 μA STOP mode current, 32 MHz max CPU speed, integrated LIN-capable UART, hardware DMA (2 channels), and support for background data flash rewriting at full VDD range (1.8–5.5 V).
Technical Context
The R5F101EFDNA#U0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, 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, calendar-mode RTC with alarm and clock correction, and watchdog timer with dedicated low-speed oscillator.
Its peripheral set includes up to 26-channel 10-bit ADC with internal 1.45 V reference and temperature sensor, 8× 16-bit timers, 3× I²C/Simplified I²C interfaces, 2× UART/LIN, and 2× CSI (SPI-compatible) channels - all configurable via register-based control without external glue logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz - delivers 41 DMIPS performance for deterministic real-time control |
| Flash Memory | 64 KB code flash with 1 KB block erase; supports self-programming and boot swap |
| Data Flash | 4 KB with background operation (BGO); 1M write cycles; rewrite voltage 1.8–5.5 V |
| RAM | 2 KB on-chip SRAM, including dedicated areas for flash library use (start address FEF00H) |
| ADC | 10-bit resolution, 26 input channels, internal 1.45 V reference, and integrated temperature sensor |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.57 μA with RTC+LVD active), SNOOZE - enables multi-year battery life |
Pinout & Package
Package: 40-pin HWQFN (6 × 6 mm, 0.5-mm pitch), moisture sensitivity level MSL3, RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | General-purpose I/O with N-ch open drain, TTL input, pull-up | Supports mixed-voltage interfacing (1.8/2.5/3.0 V devices) and key interrupt detection |
| P10/P11 | SCK00/SCL00 and SI00/RxD0/TOOLRxD/SDA00 | Dual-function pins for SPI master/slave or I²C communication and debug UART interface |
| P20–P27 | ANI0–ANI7 analog inputs + AVREFP/AVREFM | Configurable as ADC inputs or reference voltage terminals; enable precision sensor signal acquisition |
| P30/P31 | TxD0/TOOLTxD and INTP0/INTP1 | UART transmit and dual independent external interrupt inputs for fast event response |
| VDD/VSS | Power supply and ground | Single 1.6–5.5 V rail; supports direct connection to coin cell or Li-ion battery without regulator |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA with RTC and LVD active - enables decade-scale battery operation in metering applications |
| Hardware DMA controller | 2-channel DMA with 2-clock transfer between SFR and RAM - offloads CPU during sensor data streaming |
| Background data flash rewrite | Execute code from flash while updating data flash - ensures uninterrupted real-time operation |
| LIN-capable UART | UART with LIN bus physical layer support (ISO 17987-4) - simplifies automotive body electronics integration |
| On-chip RTC with calendar | 99-year calendar, alarm, and clock correction - eliminates need for external RTC IC in time-stamped logging |
Applications
| Smart Utility Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Battery-powered water/gas meter with hourly pulse counting, temperature compensation, and wireless wake-up. IC Role / Device Role / Timing Role: Main system controller executing metrology algorithms, managing RTC-timed sampling, and handling RF transceiver handshaking. Use Value: 0.57 μA STOP mode extends 3.6 V lithium battery life beyond 10 years; integrated ADC and temperature sensor reduce BOM count by two components. |
Use Scenario: Wireless vibration monitor on rotating machinery with edge FFT analysis and threshold-triggered alerts. IC Role / Device Role / Timing Role: Real-time data acquisition engine capturing accelerometer samples via DMA, performing on-chip FFT using MAC unit, and scheduling BLE transmissions. Use Value: 41 DMIPS at 32 MHz enables 128-point FFT in <1.2 ms; 26-channel ADC supports multi-axis sensor fusion without external mux. |
| Home Appliance Control | Medical Wearable |
|
Use Scenario: Smart HVAC remote with touch sensing, ambient light adaptation, and IR transmission. IC Role / Device Role / Timing Role: System-on-chip managing capacitive touch keys, PWM-driven LED backlight, and IR carrier generation via timer output compare. Use Value: On-chip key interrupt and clock output/buzzer controller eliminate discrete timing ICs; 1.6 V min operating voltage supports single-cell alkaline operation. |
Use Scenario: ECG patch with analog front-end biasing, lead-off detection, and Bluetooth LE telemetry. IC Role / Device Role / Timing Role: Analog-digital hub acquiring conditioned biopotential signals, detecting electrode detachment via LVD, and timestamping events with RTC. Use Value: Internal 1.45 V reference and temperature sensor enable accurate gain calibration and thermal drift compensation; STOP mode current ensures >7-day runtime on 100 mAh coin cell. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100EFDNA#U0 | Includes 4 KB data flash (same package), but adds 4 KB of data flash memory - not present in R5F101EFDNA#U0 | Required where field firmware updates or parameter storage exceed 4 KB; increases code density overhead | Select when persistent nonvolatile storage beyond 4 KB is needed - R5F101EFDNA#U0 lacks data flash entirely |
| RL78/G14 R5F11E6GANA#U0 | Same pinout, 64 KB flash, but adds USB 2.0 FS host/device, 16 KB RAM, and enhanced security features | Used in USB-connected diagnostics tools or secure bootloader implementations - not supported by R5F101EFDNA#U0 | Choose only if USB connectivity or larger RAM is mandatory; otherwise R5F101EFDNA#U0 offers lower cost and power |
Compared with R5F100EFDNA#U0, the R5F101EFDNA#U0 omits data flash to reduce cost and die size while retaining identical low-power performance and peripheral set - making it optimal for fixed-function control. Versus RL78/G14, it trades USB and RAM for lower static current and smaller footprint.
Availability
R5F101EFDNA#U0 is available at Aetrix Electronics and suitable for smart utility metering, industrial sensor nodes, home appliance control, medical wearables, and battery-powered IoT edge devices requiring stable component supply across extended product lifecycles.
Supply support for R5F101EFDNA#U0 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 enterprise applications.
The RL78/G13 family targets cost-sensitive, ultra-low-power general-purpose embedded systems - emphasizing energy efficiency, integration density, and toolchain compatibility across Renesas' ecosystem.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F101EFDNA#U0?
The R5F101EFDNA#U0 operates up to 32 MHz with the high-speed on-chip oscillator, delivering 41 DMIPS of processing performance. Its minimum instruction execution time is 0.03125 μs under these conditions, enabling deterministic real-time response for motor control and sensor fusion tasks within the R5F101EFDNA#U0's resource constraints.
Does the R5F101EFDNA#U0 include data flash memory?
No, the R5F101EFDNA#U0 does not include data flash memory. Per Renesas' part numbering convention, the "101" prefix indicates no data flash, distinguishing it from "100" variants like R5F100EFDNA#U0 which integrate 4 KB of data flash. This omission reduces cost and die size while preserving identical code flash (64 KB), RAM (2 KB), and peripheral functionality in the R5F101EFDNA#U0.
What low-power modes are supported by the R5F101EFDNA#U0, and what are their typical current draws?
The R5F101EFDNA#U0 supports HALT mode (66 μA/MHz), STOP mode (0.57 μA with RTC and LVD active), and SNOOZE mode. These modes enable aggressive power gating: STOP mode maintains calendar RTC and voltage monitoring while drawing less than 1 μA, making the R5F101EFDNA#U0 suitable for decade-long deployments in battery-powered infrastructure monitoring.
Can the R5F101EFDNA#U0 perform ADC conversions while executing code from flash memory?
Yes, the R5F101EFDNA#U0 supports concurrent operation: its 10-bit ADC can acquire samples while the CPU executes instructions from flash. The ADC includes hardware triggers from timers and supports scan sequences across up to 26 channels - all without CPU intervention - ensuring deterministic timing and minimal jitter in the R5F101EFDNA#U0's data acquisition pipeline.
What is the package type and pin count of the R5F101EFDNA#U0, and is it RoHS-compliant?
The R5F101EFDNA#U0 uses a 40-pin HWQFN package (6 × 6 mm, 0.5-mm pitch) with exposed thermal pad, rated MSL3, and fully RoHS-compliant with lead-free terminations. This compact, thermally efficient package supports high-density PCB layouts and automated reflow assembly - consistent with industrial manufacturing requirements for the R5F101EFDNA#U0.
R5F101EFDNA#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 40-WFQFN Exposed Pad
- 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:
- 28
- 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 9x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101EFDNA#U0 FAQ
1.How can I place an order for R5F101EFDNA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101EFDNA#U0 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 R5F101EFDNA#U0 reliable?
The price and inventory of R5F101EFDNA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101EFDNA#U0 is usually 5 days.
3.What payment methods are accepted for R5F101EFDNA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101EFDNA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101EFDNA#U0?
R5F101EFDNA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101EFDNA#U0 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 R5F101EFDNA#U0?
For technical support, including R5F101EFDNA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101EFDNA#U0 requirements.
6.How does Aetrix verify that R5F101EFDNA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F101EFDNA#U0 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 R5F101EFDNA#U0 meets industry standards.
7.What is the process for return or replacement of R5F101EFDNA#U0?
All R5F101EFDNA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101EFDNA#U0, 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 R5F101EFDNA#U0 part is unused and in its original packaging.
Return procedure for R5F101EFDNA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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