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Renesas R5F100LFAFA#50
- Part No.:
- R5F100LFAFA#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F100LFAFA#50.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
R5F100LFAFA#50 from Renesas is a 64-pin LQFP-0.65mm, 128 KB flash, 8 KB data flash, 12 KB RAM RL78/G13 16-bit microcontroller operating from 1.6–5.5 V, delivering 41 DMIPS at 32 MHz with ultra-low-power HALT/STOP/SNOOZE modes - deployed in battery-powered industrial sensors and smart metering interfaces.
For engineers reviewing the R5F100LFAFA#50 datasheet, R5F100LFAFA#50 pinout, R5F100LFAFA#50 application, or R5F100LFAFA#50 equivalent, key selection criteria include its 64-pin LQFP package, integrated RTC + LVD + BGO-capable data flash, 10-bit 26-channel ADC, and support for LIN-bus UART and I²C in harsh-temperature industrial environments (−40°C to +85°C).
Technical Context
The R5F100LFAFA#50 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling configurable instruction execution time from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates a 12-bit interval timer, calendar-based real-time clock with alarm and correction, and watchdog timer powered by dedicated low-speed on-chip oscillator.
Its peripheral set includes up to 16 channels of 16-bit timer, 3–10 channels of I²C/Simplified I²C, 2–4 UART/LIN channels, 2–8 CSI (SPI-compatible) channels, and DMA controller with 2/4 channels supporting 2-clock transfers between SFR and RAM - all optimized for deterministic real-time control in resource-constrained embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing and low gate count for cost-sensitive industrial control. |
| Max Operating Frequency | 32 MHz; delivers 41 DMIPS performance while maintaining 66 μA/MHz active current efficiency. |
| Flash Memory | 128 KB code flash (1 KB block size); supports secure block erase prohibition and self-programming with boot swap. |
| Data Flash | 8 KB background operation (BGO) capable; allows concurrent code execution during rewrites, rated for 1M cycles. |
| ADC Resolution & Channels | 10-bit resolution with 26 analog inputs; includes internal 1.45 V reference and temperature sensor for calibration-free sensing. |
| Operating Voltage Range | 1.6 V to 5.5 V; enables direct interface with diverse power domains including 1.8 V, 2.5 V, 3.3 V, and 5 V peripherals. |
| Temperature Range | −40°C to +85°C (Industrial grade D); qualified for extended thermal cycling in factory automation and building controls. |
Pinout & Package
64-pin LQFP package (12 × 12 mm, 0.65-mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3 per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Port 10 / SPI Clock / I²C Clock | Multi-function pin supporting synchronous serial communication; selectable as master clock for CSI or I²C bus timing. |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Port 11 / SPI Input / UART RX / Debug RX / I²C Data | Shared serial interface pin enabling flexible peripheral routing; supports tool connection via on-chip debug interface. |
| P20/ANI0/AVREFP | Analog Input 0 / ADC Reference Positive | Primary analog input channel with selectable AVREFP function; allows external precision reference or internal VDD sourcing. |
| P21/ANI1/AVREFM | Analog Input 1 / ADC Reference Negative | Paired with P20 to define differential ADC reference window; supports ratiometric measurement against external sensor bridges. |
| P30/INTP0/TOOLRST | External Interrupt 0 / On-chip Debug Reset | Dual-role pin for system wake-up from STOP mode and hardware reset initiation during debug session recovery. |
| VSS | Ground | Multiple dedicated ground pins (VSS, VSS1, VSS2) ensure low-noise analog/digital separation and stable power return paths. |
| VDD | Power Supply | Single-supply operation from 1.6–5.5 V; internal POR and LVD provide robust brown-out immunity across voltage transients. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA typical current draw with RTC + LVD active - extends battery life in wireless sensor nodes beyond 10 years. |
| Background Data Flash Operation (BGO) | Enables firmware updates without halting real-time tasks; critical for fail-safe field upgrades in medical and industrial equipment. |
| On-chip LIN-bus UART | Fully compliant with LIN 2.2A protocol; eliminates external transceiver need in automotive body electronics and HVAC actuators. |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC operations accelerate motor control algorithms and digital filtering. |
| Different-potential I/O interface | Supports direct connection to 1.8 V, 2.5 V, and 3 V logic without level shifters - simplifies mixed-voltage board design. |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Bidirectional energy monitoring in DIN-rail mounted electricity meters with tamper detection and time-of-use billing. IC Role / Device Role / Timing Role: Main system controller managing metrology IC interface, LCD driver, RTC-based tariff switching, and secure firmware updates. Use Value: Integrated 10-bit 26-channel ADC and BGO data flash enable simultaneous analog sampling and secure parameter storage without interrupt latency. |
Use Scenario: Wireless vibration and temperature node in predictive maintenance systems deployed on motors and pumps. IC Role / Device Role / Timing Role: Low-power acquisition engine sampling analog sensors, performing FFT preprocessing, and triggering BLE/Wi-Fi transmission on threshold events. Use Value: 0.57 μA STOP mode with RTC wake-up and hardware multiplier allow multi-year battery life and real-time signal processing at edge. |
| Building Automation Controller | Home Appliance MCU |
|
Use Scenario: Central HVAC controller coordinating fan speed, valve position, and ambient air quality feedback across multiple zones. IC Role / Device Role / Timing Role: Real-time coordinator interfacing with PWM fans, I²C gas sensors, UART-connected thermostats, and LIN-linked dampers. Use Value: 10 I²C channels and 4 UART/LIN ports eliminate external bus expanders, reducing BOM cost and PCB area in space-constrained panels. |
Use Scenario: Main control unit in washing machines managing motor drive, water level sensing, user interface, and safety interlocks. IC Role / Device Role / Timing Role: Safety-certified system manager executing IEC 60730 Class B routines, driving triac outputs, and logging fault history to data flash. Use Value: On-chip LVD with 14-level programmability and flash shield window function meet functional safety requirements without external supervision ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LGAFA#50 | Same 64-pin LQFP package, 128 KB flash, but 8 KB RAM (vs. 12 KB in R5F100LFAFA#50); identical peripheral set and power specs. | Targeted at cost-optimized designs where 4 KB RAM reduction is acceptable for simpler control loops or smaller RTOS footprint. | Select when memory budget allows tighter RAM allocation and BOM cost is prioritized over headroom for future feature expansion. |
| R5F101LFAFA#50 | No data flash (0 KB vs. 8 KB); otherwise identical pinout, package, clock, and peripheral configuration; same 12 KB RAM. | Suitable for applications requiring only code flash updates (not runtime parameter storage), such as fixed-function lighting controllers or basic timers. | Choose when persistent nonvolatile parameter storage is unnecessary and lower unit cost justifies removal of data flash circuitry. |
Compared with R5F100LFAFA#50, R5F100LGAFA#50 trades 4 KB RAM for lower cost in static applications, while R5F101LFAFA#50 removes data flash entirely - making it viable only where runtime parameter retention is handled externally or omitted.
Availability
R5F100LFAFA#50 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart metering interfaces, and building automation controllers requiring stable component supply across multi-year production cycles.
Supply support for R5F100LFAFA#50 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 enterprise markets.
The RL78/G13 family is engineered for ultra-low-power general-purpose embedded control - balancing performance, integration, and energy efficiency in cost-sensitive industrial and consumer applications.
FAQ
What is the maximum operating frequency and corresponding power consumption of the R5F100LFAFA#50?
The R5F100LFAFA#50 operates at up to 32 MHz with 41 DMIPS performance and consumes 66 μA per MHz in active mode. At full speed, typical current draw is approximately 2.1 mA (32 MHz × 66 μA/MHz), verified under VDD = 3.3 V and TA = 25°C per R01DS0131EJ0380 Rev.3.80.
Does the R5F100LFAFA#50 support hardware-based LIN bus communication?
Yes, the R5F100LFAFA#50 includes UART peripherals with built-in LIN 2.2A protocol support, enabling direct connection to LIN transceivers without software bit-banging. This capability is confirmed in Section 1.1 Features and Table 1-1 of the RL78/G13 datasheet R01DS0131EJ0380.
What are the data flash endurance and rewrite voltage specifications for the R5F100LFAFA#50?
The R5F100LFAFA#50 provides 8 KB of data flash rated for 1,000,000 write/erase cycles (typical) with operation supported across the full VDD range of 1.8 V to 5.5 V - enabling reliable parameter storage in variable-power industrial environments.
Can the R5F100LFAFA#50 operate in extended temperature conditions beyond −40°C to +85°C?
No - the R5F100LFAFA#50 is specified for Industrial grade D (−40°C to +85°C) only. For operation up to +105°C, Renesas offers G-grade variants such as R5F100LFGFA#50, which share identical memory and peripheral features but differ in temperature qualification and part number suffix.
Is the R5F100LFAFA#50 pin-compatible with other RL78/G13 64-pin LQFP variants?
Yes - all RL78/G13 64-pin LQFP devices with FA suffix (e.g., R5F100LGAFA#50, R5F101LFAFA#50) share identical pinout, package dimensions, and footprint. Functional differences (e.g., data flash presence, RAM size) do not affect mechanical or electrical compatibility.
R5F100LFAFA#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 48
- 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 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F100LFAFA#50 FAQ
1.How can I place an order for R5F100LFAFA#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100LFAFA#50 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 R5F100LFAFA#50 reliable?
The price and inventory of R5F100LFAFA#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100LFAFA#50 is usually 5 days.
3.What payment methods are accepted for R5F100LFAFA#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100LFAFA#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100LFAFA#50?
R5F100LFAFA#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100LFAFA#50 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 R5F100LFAFA#50?
For technical support, including R5F100LFAFA#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100LFAFA#50 requirements.
6.How does Aetrix verify that R5F100LFAFA#50 is sourced from the original manufacturer or authorized distributors?
All R5F100LFAFA#50 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 R5F100LFAFA#50 meets industry standards.
7.What is the process for return or replacement of R5F100LFAFA#50?
All R5F100LFAFA#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100LFAFA#50, 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 R5F100LFAFA#50 part is unused and in its original packaging.
Return procedure for R5F100LFAFA#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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