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Renesas R5F101EFANA#20
- Part No.:
- R5F101EFANA#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
R5F101EFANA#20.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 40HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,470
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Product details
Overview
R5F101EFANA#20 from Renesas is a 40-pin HWQFN-packaged 16-bit RL78/G13 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 at 32 MHz, supports ultra-low-power modes (0.57 μA in RTC+LVD mode), and integrates 10-bit ADC (26 channels), RTC, UART, I²C, SPI, and 16-bit timers for embedded control in battery-powered industrial sensors and smart home nodes.
For engineers reviewing the R5F101EFANA#20 datasheet, R5F101EFANA#20 pinout, R5F101EFANA#20 application, or R5F101EFANA#20 equivalent, key selection criteria include its no-data-flash configuration, 40-pin 6×6 mm HWQFN-0.5mm-pitch package, -40°C to +85°C industrial temperature grade (D), and support for background data flash rewriting and on-chip debug.
Technical Context
The R5F101EFANA#20 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz ultra-low-speed mode). Its memory subsystem includes 64 KB code flash with 1 KB block erase and 4 KB data flash supporting background operation (BGO) and 1 million write cycles.
Power management includes HALT, STOP, and SNOOZE low-power modes, on-chip POR and LVD (14-level selectable), and a high-accuracy ±1.0% on-chip oscillator (32 MHz max). Peripheral integration covers up to 26-channel 10-bit ADC with internal 1.45 V reference and temperature sensor, real-time clock with calendar/alarm, and multiple serial interfaces including UART (LIN-capable), I²C, and CSI (SPI-compatible).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 41 DMIPS @ 32 MHz |
| Flash Memory | 64 KB code flash with 1 KB erase blocks and security lock |
| Data Flash | 4 KB with background operation (BGO) and 1M write cycles |
| RAM | 4 KB on-chip SRAM for program/data storage |
| Supply Voltage | 1.6 V to 5.5 V single supply, enabling direct Li-ion or coin-cell operation |
| Operating Temp | -40°C to +85°C (industrial grade D variant) |
| ADC | 10-bit resolution, 26 input channels, internal 1.45 V reference and temp sensor |
| Package | HWQFN-40, 6 × 6 mm, 0.5 mm pitch, 40-pin surface-mount |
Pinout & Package
Package: HWQFN-40 (6 × 6 mm, 0.5 mm pitch), thermally enhanced, lead-free, moisture-sensitive level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power Supply | Main digital supply (1.6–5.5 V); decoupling required per datasheet layout guidelines |
| VSS | GND Reference | Digital ground return; separate analog ground not required but recommended for ADC accuracy |
| P00–P07 | General I/O | Bi-directional CMOS ports with N-ch open-drain option, pull-up resistors, and TTL input buffers |
| P10–P17 | Serial Interface | Configurable as SCK00/SCL00, SI00/RxD0/TOOLRxD/SDA00, SO00/TxD0/TOOLTxD/SCL00 |
| P20–P27 | Analog Input | ANI0–ANI7 inputs for 10-bit ADC; P20/P21 also serve as AVREFP/AVREFM reference pins |
| RESET | Reset Input | Active-low reset with internal pull-up; accepts external reset signal or watchdog timeout |
| CLKP/CLKM | Oscillator Input | Differential crystal input for external 32.768 kHz RTC crystal or high-speed crystal up to 20 MHz |
| EXCLK | External Clock | Single-ended external clock input (up to 20 MHz) for bypassing crystal oscillator circuit |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low-Power Operation | 0.57 μA in STOP mode with RTC + LVD active-enables multi-year battery life in wireless sensors |
| Background Data Flash Rewrite | Execute code from flash while rewriting data flash-no application interruption during firmware updates |
| On-Chip Debug Support | Fully integrated debug interface via TOOLx pins-eliminates need for external JTAG emulator |
| Integrated RTC with Calendar | 99-year calendar, alarm, and clock correction-replaces external RTC IC in time-stamped logging systems |
| Multi-Protocol Serial Peripherals | UART (LIN-capable), I²C, and CSI (SPI-compatible) on shared pins-reduces PCB routing complexity |
| Temperature Sensor & Vref | On-die temperature sensor and 1.45 V internal reference-enables self-calibration and thermal monitoring without BOM additions |
Applications
| Smart Thermostats | Industrial Motor Controllers |
|---|---|
Use Scenario: Battery-powered HVAC node collecting ambient temperature/humidity and controlling relay outputs. IC Role / Device Role / Timing Role: Main system controller executing PID loop, managing wireless comms, and driving display backlight. Use Value: 0.57 μA STOP mode extends AA battery life beyond 5 years; integrated RTC enables accurate scheduling without external components. | Use Scenario: Compact BLDC motor driver board requiring position sensing, PWM generation, and fault protection. IC Role / Device Role / Timing Role: Real-time motion controller coordinating 16-bit timer-based PWM, ADC sampling of current/voltage, and overtemperature shutdown. Use Value: 41 DMIPS at 32 MHz ensures sub-10 μs control loop latency; 26-channel ADC supports simultaneous phase current and bus voltage measurement. |
| Wireless Sensor Nodes | Home Appliance Control Panels |
Use Scenario: Zigbee/Thread endpoint measuring door/window status, light level, and battery voltage. IC Role / Device Role / Timing Role: Low-power sensor aggregator with wake-on-interrupt I/O and BLE coexistence timing coordination. Use Value: SNOOZE mode allows UART/I²C peripherals to operate while CPU sleeps-reducing average power to <2 μA during idle periods. | Use Scenario: Microwave oven or washing machine UI with touch keys, buzzer feedback, and safety interlock monitoring. IC Role / Device Role / Timing Role: Human interface manager handling key scan, buzzer tone generation, and real-time safety watchdog supervision. Use Value: On-chip buzzer output controller and key interrupt logic eliminate discrete timer/buffer ICs; LVD with 14-level detection enables precise brown-out response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100EFANA#20 | Includes 4 KB data flash; otherwise identical flash/RAM/peripheral set and pinout | Required where field firmware updates or parameter storage are needed | Select R5F100EFANA#20 when non-volatile parameter retention or OTA update capability is mandatory |
| RL78/G14 R5F111EFANA#20 | Enhanced RL78/G14 core: higher 48 DMIPS, 128 KB flash, added CAN interface and more timers | Suitable for CAN-based industrial networks or designs needing >64 KB code space | Choose RL78/G14 only if CAN, larger memory, or higher performance justifies cost and footprint increase |
Compared with R5F100EFANA#20, the R5F101EFANA#20 reduces BOM cost by omitting data flash while retaining full peripheral functionality; versus RL78/G14, it offers proven maturity and lower power in resource-constrained designs without CAN.
Availability
R5F101EFANA#20 is available at Aetrix Electronics and suitable for industrial motor controllers, smart thermostats, and wireless sensor nodes requiring stable component supply across extended production lifecycles.
Supply support for R5F101EFANA#20 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 targets cost-sensitive, ultra-low-power general-purpose embedded applications-designed to replace legacy 8-bit MCUs with scalable 16-bit performance and integrated analog peripherals.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F101EFANA#20?
The R5F101EFANA#20 operates at up to 32 MHz using its high-speed on-chip oscillator and achieves 41 DMIPS (Dhrystone MIPS) at that frequency. This performance level is confirmed in the RL78/G13 datasheet (R01DS0131EJ0380 Rev.3.80) and reflects its optimized 3-stage pipeline CISC architecture. The R5F101EFANA#20 maintains this rating across its full industrial temperature range (-40°C to +85°C).
Does the R5F101EFANA#20 include data flash memory, and what are its endurance specifications?
No, the R5F101EFANA#20 does not include data flash memory-this is indicated by the "101" prefix in its part number (per Figure 1-1 of R01DS0131EJ0380). In contrast, "100" variants like R5F100EFANA#20 include 4 KB data flash rated for 1,000,000 write cycles. The R5F101EFANA#20 retains full code flash (64 KB) and RAM (4 KB) functionality but omits data flash to reduce cost and die size.
What package type and pin count does the R5F101EFANA#20 use, and what does the "#20" suffix indicate?
The R5F101EFANA#20 uses a 40-pin HWQFN package (6 × 6 mm, 0.5 mm pitch), as confirmed in Table 1-1 (Page 6) of the RL78/G13 datasheet. The "#20" suffix denotes embossed tape packaging for automated SMT placement-a standard carrier format for high-volume manufacturing. This differs from "#U0" (tray) or "#00" (alternate tape variant), all specifying the same physical device.
Which low-power modes are supported by the R5F101EFANA#20, and what is its lowest achievable current consumption?
The R5F101EFANA#20 supports HALT, STOP, and SNOOZE modes. Its lowest guaranteed current is 0.57 μA in STOP mode with only the real-time clock (RTC) and low-voltage detector (LVD) enabled-verified across -40°C to +85°C. This value is specified in the datasheet's "Ultra-low power consumption technology" section and enables multi-year operation on primary lithium cells in always-on sensing applications.
Can the R5F101EFANA#20 execute code while rewriting its flash memory, and what debug interface does it support?
The R5F101EFANA#20 supports background operation (BGO) only for data flash-not applicable here since it lacks data flash. However, its code flash supports self-programming with boot swap and flash shield window functions via on-chip debug. Debug is performed through dedicated TOOLRxD/TOOLTxD pins using Renesas' E2 emulator or compatible tools, eliminating need for external JTAG hardware.
R5F101EFANA#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 40-WFQFN Exposed Pad
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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:
R5F101EFANA#20 FAQ
1.How can I place an order for R5F101EFANA#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101EFANA#20 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 R5F101EFANA#20 reliable?
The price and inventory of R5F101EFANA#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101EFANA#20 is usually 5 days.
3.What payment methods are accepted for R5F101EFANA#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101EFANA#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101EFANA#20?
R5F101EFANA#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101EFANA#20 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 R5F101EFANA#20?
For technical support, including R5F101EFANA#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101EFANA#20 requirements.
6.How does Aetrix verify that R5F101EFANA#20 is sourced from the original manufacturer or authorized distributors?
All R5F101EFANA#20 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 R5F101EFANA#20 meets industry standards.
7.What is the process for return or replacement of R5F101EFANA#20?
All R5F101EFANA#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101EFANA#20, 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 R5F101EFANA#20 part is unused and in its original packaging.
Return procedure for R5F101EFANA#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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