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Renesas R5F100EFANA#20
- Part No.:
- R5F100EFANA#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
R5F100EFANA#20.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 40HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,025
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Product details
Overview
R5F100EFANA#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, features ultra-low-power modes (66 μA/MHz active, 0.57 μA RTC+LVD), and integrates 10-bit ADC (26 channels), RTC, UART, I²C, SPI, and 16-bit timers for embedded control in battery-powered and industrial sensing applications.
For engineers reviewing the R5F100EFANA#20 datasheet, R5F100EFANA#20 pinout, R5F100EFANA#20 application, or R5F100EFANA#20 equivalent, key selection criteria include its 40-pin HWQFN-0.5mm package, integrated data flash with 1M rewrite cycles, real-time clock with calendar function, low-voltage detector with 14-level interrupt/reset, and support for SNOOZE mode operation during peripheral wake-up events.
Technical Context
The R5F100EFANA#20 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed oscillator) to 30.5 μs (32.768 kHz subsystem clock). Its memory subsystem includes 64 KB on-chip code flash (1 KB block size), 4 KB data flash with background operation (BGO), and 4 KB RAM - all accessible within a 1 MB address space.
Peripherals are tightly coupled to low-power operation: the 10-bit ADC supports up to 26 analog inputs with internal 1.45 V reference and temperature sensor; serial interfaces include up to 4 UART/LIN channels, 10 I²C/Simplified I²C channels, and 8 CSI (SPI-compatible) channels; timing resources comprise 16 × 16-bit timers, 1 × 12-bit interval timer, 1 × calendar RTC, and 1 × watchdog timer with dedicated low-speed oscillator.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline, 41 DMIPS @ 32 MHz |
| Flash Memory | 64 KB code flash with 1 KB erase blocks, self-programming with boot swap |
| Data Flash | 4 KB with background operation (BGO), 1,000,000 write cycles (TYP), 1.8–5.5 V programming |
| RAM | 4 KB on-chip SRAM, used by flash library starting at FEF00H |
| ADC | 10-bit resolution, 26-channel input, internal 1.45 V reference and temperature sensor |
| Power Modes | HALT (0.23 μA), STOP (0.57 μA w/ RTC+LVD), SNOOZE (low-power peripheral wake-up) |
| Operating Voltage | 1.6 V to 5.5 V single supply, -40°C to +85°C ambient (A-grade) |
Pinout & Package
Package: 40-pin HWQFN (6 × 6 mm, 0.5 mm pitch), exposed thermal pad, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply | Main digital supply (1.6–5.5 V); decoupling required near pin |
| VSS | Ground | Digital ground reference; connect to PCB ground plane |
| RESET | Reset input | Active-low reset with internal pull-up; accepts external reset signal or POR/LVD assertion |
| P00–P07 | General-purpose I/O | 8-bit port with N-ch open-drain option, TTL input buffer, and on-chip pull-up resistors |
| P10–P17 | Multi-function I/O | Supports SCK00/SCL00, SI00/RxD0/TOOLRxD/SDA00, SO00/TxD0/TOOLTxD, etc. |
| P20–P27 | Analog input / AVREF | Includes ANI0–ANI2, AVREFP/AVREFM, and temperature sensor input |
| CLKP/CLKM | Crystal oscillator input | Supports 32.768 kHz crystal for RTC or main system clock (up to 24 MHz) |
| EXCLK | External clock input | Accepts external clock source (1–24 MHz) bypassing on-chip oscillator |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 66 μA/MHz active current enables >10-year battery life in metering and sensor nodes |
| Integrated data flash | 4 KB BGO-capable memory allows firmware updates and logging without halting CPU execution |
| Real-time clock with calendar | 99-year calendar, alarm, and clock correction eliminates need for external RTC IC |
| On-chip voltage detector | 14-level LVD supports precise brown-out detection and graceful shutdown at defined thresholds |
| SNOOZE mode | Enables UART/I²C/ADC wake-up while CPU remains halted, reducing average system power |
Applications
| Smart Utility Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Battery-powered gas/water meter with pulse counting, pressure sensing, and wireless reporting every 15 minutes. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing RTC-based scheduling, and handling UART-to-LoRaWAN bridge via GPIO-toggled interface. Use Value: 0.57 μA STOP mode extends 3.6 V lithium battery life beyond 12 years; integrated 10-bit ADC directly digitizes analog sensor outputs without external signal conditioning. |
Use Scenario: DIN-rail mounted temperature/humidity monitor with Modbus RTU over RS-485 and local LED status display. IC Role / Device Role / Timing Role: System-on-chip managing dual-sensor acquisition, CRC-protected Modbus framing, and real-time LED blink patterns synchronized to RTC alarms. Use Value: 4 KB data flash stores calibration coefficients and event logs; UART with LIN support simplifies firmware updates over same bus as field communication. |
| Home Appliance Control | Medical Diagnostic Device |
|
Use Scenario: Smart washing machine control board requiring motor phase control, water level sensing, and user interface with touch keys. IC Role / Device Role / Timing Role: Primary MCU coordinating PWM-driven triac control, capacitive touch key scanning, and buzzer feedback using on-chip clock output controller. Use Value: 16 × 16-bit timers enable precise motor commutation timing; N-ch open-drain I/O safely interfaces with 3.3 V touch controller and 5 V display backlight. |
Use Scenario: Portable blood glucose meter with electrochemical strip reading, LCD display, and USB-C charging status monitoring. IC Role / Device Role / Timing Role: Safety-critical controller performing analog front-end biasing, strip insertion detection, and calibrated ADC conversion with internal temperature compensation. Use Value: Internal 1.45 V reference ensures stable ADC accuracy across voltage and temperature; LVD with 14-level granularity supports precise battery fuel gauging and low-battery warning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100EGANA#20 | 128 KB flash, 8 KB data flash, 12 KB RAM - identical 40-pin HWQFN package and peripheral set | Supports larger firmware images and extended data logging; requires no PCB change | Select when future firmware growth or enhanced data retention is anticipated |
| R5F101EFANA#20 | No data flash (0 KB), same 64 KB code flash, 4 KB RAM, identical pinout and peripherals | Eliminates BGO capability and field-upgradeable parameter storage; lower cost | Choose for cost-sensitive, fixed-function designs where runtime parameter updates are unnecessary |
Compared with R5F100EFANA#20, R5F100EGANA#20 provides scalable memory headroom without layout impact, while R5F101EFANA#20 reduces BoM cost by removing data flash - enabling trade-offs between field programmability and unit price in volume production.
Availability
R5F100EFANA#20 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and portable medical devices requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability validation.
Supply support for R5F100EFANA#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 industrial, automotive, and IoT markets.
The RL78/G13 family targets cost-sensitive, ultra-low-power embedded control applications - designed to replace legacy 8-bit MCUs with enhanced performance, integrated peripherals, and simplified development through scalable toolchains and HAL libraries.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating of the R5F100EFANA#20?
The R5F100EFANA#20 achieves a maximum operating frequency of 32 MHz using its high-accuracy on-chip oscillator (±1.0 %), delivering 41 DMIPS performance. This rating is measured under standard conditions (VDD = 1.8–5.5 V, TA = –40 to +85°C) and reflects integer computational throughput per the EEMBC CoreMark methodology adapted for RL78 architecture.
Does the R5F100EFANA#20 support in-system programming and secure flash protection?
Yes, the R5F100EFANA#20 supports full in-system programming via on-chip debug interface and includes flash shield window functionality to prevent unauthorized readout of code flash contents. Block-wise erase prohibition further enhances security by allowing selective locking of critical firmware sections against accidental or malicious overwrite.
What are the key low-power modes supported by the R5F100EFANA#20 and their typical current consumption?
The R5F100EFANA#20 supports HALT (0.23 μA), STOP (0.57 μA with RTC + LVD active), and SNOOZE modes. In STOP mode, only the 32.768 kHz subsystem clock, RTC, and LVD remain operational - enabling timekeeping and brown-out detection while minimizing energy use in battery-backed applications.
Can the R5F100EFANA#20 operate with a 32.768 kHz crystal for real-time clock functionality?
Yes, the R5F100EFANA#20 includes dedicated CLKP/CLKM pins for connecting a 32.768 kHz tuning-fork crystal to drive its calendar RTC. The RTC operates independently in STOP mode and supports alarm interrupts, calendar correction, and 99-year date tracking - all without CPU intervention.
What is the purpose of the "SNOOZE mode" in the R5F100EFANA#20 and which peripherals can wake the device from it?
SNOOZE mode allows selected peripherals - including UART, I²C, CSI, ADC, and timer interrupts - to operate while the CPU remains halted, significantly reducing average power in event-driven systems. Upon peripheral trigger (e.g., UART frame reception or ADC conversion complete), the CPU resumes execution without full wake-up latency, enabling responsive yet efficient operation.
R5F100EFANA#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:
- 8K x 8
- 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:
R5F100EFANA#20 FAQ
1.How can I place an order for R5F100EFANA#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100EFANA#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 R5F100EFANA#20 reliable?
The price and inventory of R5F100EFANA#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100EFANA#20 is usually 5 days.
3.What payment methods are accepted for R5F100EFANA#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100EFANA#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100EFANA#20?
R5F100EFANA#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100EFANA#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 R5F100EFANA#20?
For technical support, including R5F100EFANA#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100EFANA#20 requirements.
6.How does Aetrix verify that R5F100EFANA#20 is sourced from the original manufacturer or authorized distributors?
All R5F100EFANA#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 R5F100EFANA#20 meets industry standards.
7.What is the process for return or replacement of R5F100EFANA#20?
All R5F100EFANA#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100EFANA#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 R5F100EFANA#20 part is unused and in its original packaging.
Return procedure for R5F100EFANA#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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