Renesas R5F100FAAFP#V0
- Part No.:
- R5F100FAAFP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F100FAAFP#V0.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 44LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:2,719
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Product details
Overview
R5F100FAAFP#V0 from Renesas is a 44-pin LQFP-44, 16-bit RL78/G13 microcontroller with 96 KB flash memory, 8 KB data flash, 8 KB RAM, and ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD mode) for battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R5F100FAAFP#V0 datasheet, R5F100FAAFP#V0 pinout, R5F100FAAFP#V0 application, or R5F100FAAFP#V0 equivalent, this device delivers verified real-time clock calendar support, 10-bit 26-channel ADC with internal temperature sensor, and LIN-capable UART interfaces - critical for deterministic timing and mixed-signal control in constrained embedded systems.
Technical Context
The R5F100FAAFP#V0 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). It integrates dual-clock domains: high-speed main system clock (up to 32 MHz) and independent low-speed on-chip oscillator for watchdog and RTC operation.
Its peripheral set includes eight 16-bit timers, one 12-bit interval timer, one real-time clock with calendar/alarm/correction functions, and three I²C/Simplified I²C channels - all accessible via configurable GPIO with N-ch open-drain, TTL input, and pull-up options across its 34 general-purpose I/O pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash Memory | 96 KB code flash with 1 KB block size, self-programming, and boot swap capability |
| Data Flash | 8 KB background operation (BGO) data flash rated for 1,000,000 rewrites at VDD = 1.8–5.5 V |
| RAM | 8 KB on-chip RAM with dedicated flash library usage area starting at FEF00H |
| Power Consumption | 66 μA/MHz active current; 0.57 μA in STOP mode with RTC + LVD enabled |
| ADC | 10-bit resolution, 26-channel analog input with internal 1.45 V reference and temperature sensor |
| Operating Voltage | 1.6 V to 5.5 V single-supply operation across -40°C to +85°C ambient range (A-grade) |
Pinout & Package
Package: 44-pin LQFP (10 × 10 mm, 0.8-mm pitch), RoHS-compliant, tray packaging (#V0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI Clock / I²C Clock | Shared pin for CSI0 SPI clock or I²C0 serial clock; supports multi-master I²C arbitration |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI Input / UART RX / I²C Data | Configurable as SPI data-in, UART receive, debug interface, or I²C bidirectional data line |
| P12/SO00/TxD0/TOOLTxD | SPI Output / UART TX | Dual-function pin for SPI data-out or full-duplex UART transmit; enables firmware update over UART |
| P13/INTP0/ANI3 | External Interrupt / ADC Input | Hardware interrupt trigger source and analog channel 3 input; supports wake-up from STOP mode |
| P20/ANI0/AVREFP | ADC Channel 0 / Positive Reference | Analog input 0 with selectable AVREFP as ADC reference voltage; enables ratiometric sensor measurements |
| P21/ANI1/AVREFM | ADC Channel 1 / Negative Reference | Analog input 1 with AVREFM as ADC reference ground; supports differential measurement configurations |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA retention with RTC and LVD active - enables >10-year battery life in metering applications |
| Background data flash rewrite | Execute program code from flash while rewriting 8 KB data flash - eliminates runtime interruption |
| Multi-protocol serial interface | 2–4 UART/LIN, 2–8 CSI, and 3–10 I²C channels - supports concurrent sensor bus and host communication |
| Real-time clock with calendar | 99-year calendar, alarm, and auto-correction - eliminates external RTC IC in time-stamped logging systems |
| On-chip voltage detector (LVD) | 14-level programmable reset/interrupt threshold - ensures reliable brown-out protection without external circuitry |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Residential electricity meter with time-of-use billing, tamper detection, and wireless reporting. IC Role / Device Role / Timing Role: Main controller managing metrology ADC sampling, RTC-based tariff switching, and UART-to-PLC/LPWAN modem interface. Use Value: 96 KB flash stores dual tariff tables and firmware updates; 8 KB data flash logs 30 days of consumption history with BGO; RTC calendar enables precise billing cycles. |
Use Scenario: Wireless temperature/humidity node deployed in HVAC ducts with 10-year battery life requirement. IC Role / Device Role / Timing Role: System-on-chip managing sensor acquisition, low-power sleep scheduling, and BLE UART bridge. Use Value: 0.57 μA STOP mode extends battery life; integrated temperature sensor reduces BOM; 10-bit ADC resolves ±0.1°C changes. |
| Home Appliance Control | Building Automation Panel |
|
Use Scenario: Washing machine main board requiring motor control, user interface, and safety monitoring. IC Role / Device Role / Timing Role: Central MCU coordinating PWM motor drive, touch key scan, and fault-safe shutdown logic. Use Value: 8× 16-bit timers enable precise motor phase control; on-chip key interrupt reduces CPU load; N-ch open-drain I/O interfaces directly with 3.3 V display drivers. |
Use Scenario: DIN-rail mounted lighting controller with DALI and KNX interfaces. IC Role / Device Role / Timing Role: Protocol gateway translating DALI commands to PWM dimming outputs and KNX telegrams. Use Value: Dual UARTs support simultaneous DALI master and KNX transceiver; 26-channel ADC monitors rail voltage, temperature, and current sense. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100FCAFP#V0 | Same package and pinout; 128 KB flash, 8 KB data flash, 12 KB RAM | Higher memory headroom for complex protocol stacks (e.g., Modbus TCP + web server) | Select when firmware growth exceeds 96 KB or additional RAM is needed for buffering |
| R5F101FAAFP#V0 | Same footprint and peripherals; no data flash (only code flash), 8 KB RAM | Cost-optimized variant where field firmware updates or parameter storage are not required | Choose for fixed-function devices with static configuration and lower BOM cost target |
Compared with R5F100FCAFP#V0 and R5F101FAAFP#V0, the R5F100FAAFP#V0 balances memory capacity, data retention capability, and power efficiency - making it optimal for applications needing secure field updates and long-term data logging without over-provisioning resources.
Availability
R5F100FAAFP#V0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and building automation panels requiring stable component supply and long lifecycle support.
Supply support for R5F100FAAFP#V0 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 delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and energy-efficient embedded systems requiring rich analog integration and robust real-time performance.
FAQ
What is the maximum operating frequency of the R5F100FAAFP#V0?
The R5F100FAAFP#V0 supports up to 32 MHz operation using its high-accuracy on-chip oscillator (±1.0% over -20°C to +85°C). This enables 41 DMIPS performance while maintaining ultra-low power consumption of 66 μA/MHz, making it suitable for real-time control tasks in energy-constrained designs.
Does the R5F100FAAFP#V0 include an integrated temperature sensor?
Yes, the R5F100FAAFP#V0 includes an on-chip temperature sensor usable with the 10-bit ADC. It is selectable only in HS (high-speed main) mode and provides calibrated readings referenced to the internal 1.45 V bandgap voltage - enabling accurate thermal monitoring without external components.
Can the R5F100FAAFP#V0 perform flash self-programming during normal operation?
Yes, the R5F100FAAFP#V0 supports self-programming of both code and data flash memory. Its flash library uses dedicated RAM areas (e.g., FEF00H for R5F100xE variants) and includes boot swap and flash shield window functions to ensure safe, secure firmware updates without halting application execution.
What serial communication protocols does the R5F100FAAFP#V0 support?
The R5F100FAAFP#V0 supports multiple protocols: up to 4 UART/LIN channels (with LIN 2.2 compliance), up to 8 CSI (SPI-compatible) channels, and up to 10 I²C/Simplified I²C channels. These interfaces operate concurrently and are independently configurable, enabling multi-bus sensor aggregation and host communication.
Is the R5F100FAAFP#V0 qualified for industrial temperature range?
No - the R5F100FAAFP#V0 is specified for the A-grade industrial temperature range of -40°C to +85°C. For extended operation up to +105°C, Renesas offers G-grade variants such as R5F100FAGFP#V0 in the same LQFP-44 package, which share identical peripherals and pinout but differ in qualification testing and marking.
R5F100FAAFP#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-LQFP
- 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:
- 31
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- 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:
R5F100FAAFP#V0 FAQ
1.How can I place an order for R5F100FAAFP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100FAAFP#V0 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 R5F100FAAFP#V0 reliable?
The price and inventory of R5F100FAAFP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100FAAFP#V0 is usually 5 days.
3.What payment methods are accepted for R5F100FAAFP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100FAAFP#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100FAAFP#V0?
R5F100FAAFP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100FAAFP#V0 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 R5F100FAAFP#V0?
For technical support, including R5F100FAAFP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100FAAFP#V0 requirements.
6.How does Aetrix verify that R5F100FAAFP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F100FAAFP#V0 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 R5F100FAAFP#V0 meets industry standards.
7.What is the process for return or replacement of R5F100FAAFP#V0?
All R5F100FAAFP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100FAAFP#V0, 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 R5F100FAAFP#V0 part is unused and in its original packaging.
Return procedure for R5F100FAAFP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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