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Renesas R5F104LFAFA#50
- Part No.:
- R5F104LFAFA#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LFAFA#50.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
R5F104LFAFA#50 from Renesas is a 64-pin LQFP (0.65 mm pitch), 512 KB flash, 48 KB RAM RL78/G14 16-bit microcontroller with ultra-low-power operation (66 μA/MHz active, 0.60 μA RTC+LVD), 1.6–5.5 V supply, and integrated peripherals including 12-channel 10-bit ADC, dual DAC, RTC, and UART/I²C/CSI interfaces - deployed in industrial motor control and sensor hub applications.
For engineers reviewing the R5F104LFAFA#50 datasheet, R5F104LFAFA#50 pinout, R5F104LFAFA#50 application, or R5F104LFAFA#50 equivalent, key selection considerations include its -40°C to +85°C industrial-grade temperature rating (A-field), 64-pin LQFP-0.65mm package compatibility, 512 KB code flash with data flash shield window, and support for background data flash rewriting (BGO) at 1.8–5.5 V.
Technical Context
The R5F104LFAFA#50 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 µs (32 MHz high-speed mode) to 30.5 µs (32.768 kHz ultra-low-speed mode). It integrates an Event Link Controller (ELC) enabling hardware-triggered peripheral chaining without CPU intervention.
Its power management includes HALT, STOP, and SNOOZE modes, plus on-chip POR and 14-level LVD with interrupt/reset options. The DTC supports normal, repeat, and block transfer modes activated by 19–26 event sources, reducing CPU load during memory-to-peripheral transfers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline and multiply/divide/accumulate instructions |
| Max Clock | 32 MHz (44 DMIPS); high-speed on-chip oscillator ±1.0% accuracy (1.8–5.5 V, -20 to +85°C) |
| Memory | 512 KB code flash (1 KB blocks), 8 KB data flash (1M rewrite cycles), 48 KB RAM |
| ADC | 10-bit resolution, 20-channel input, internal 1.45 V reference and temperature sensor |
| DAC | Two 8-bit channels, 0 V to VDD output range, real-time update capability |
| Timers | 12× 16-bit TAU channels, 1× 12-bit interval timer, 1× calendar RTC (99-year), 1× watchdog |
| I/O & Interfaces | 64-pin LQFP package with 92 total I/O (including N-ch open-drain), 3–4 UART/LIN, 4–10 I²C, 3–8 CSI, and 19–26 ELC event inputs |
Pinout & Package
Package: 64-pin LQFP (12 × 12 mm, 0.65 mm pitch), RoHS-compliant, industrial-grade (TA = -40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00/P01 | TxD1/RxD1, TI00/TO00, TRGCLKA/B | Primary UART1 interface + timer I/O + trace clock for debug synchronization |
| P10–P17 | SCK11/SI11/SDA11/TRDIOD1 through TRDIOA0/TRDCLK | Dedicated CSI/I²C/SPI-like serial channels with flexible peripheral redirection via PIOR registers |
| P30/P31 | INTP3/RTC1HZ/SCK00/SCL00 and TI03/TO03/INTP4/PCLBUZ0 | Real-time clock output and buzzer-capable timer I/O with interrupt priority control |
| P60/P61 | SCLA0/SDAA0 | Hardware I²C bus interface (slave address configurable), supports multi-master arbitration |
| P121/P122 | X1/X2 crystal oscillator inputs | Supports external 32.768 kHz crystal for RTC precision or high-frequency crystal up to 20 MHz |
| RESET/REGC/VDD/VSS | Reset input, regulator capacitor, power rails | REGC requires 0.47–1 µF capacitor to VSS; RESET is Schmitt-triggered with internal pull-up |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT/STOP/SNOOZE modes | Enables battery-powered operation down to 0.60 μA (RTC + LVD only), extending runtime in energy-constrained designs |
| Background Data Flash Operation (BGO) | Allows full CPU execution from program memory while rewriting data flash - critical for field firmware updates without interruption |
| Event Link Controller (ELC) | Eliminates CPU polling/interrupt latency by directly linking 19–26 peripheral events (e.g., ADC end → DMA trigger → GPIO toggle) |
| Peripheral I/O Redirection (PIOR) | Reassigns up to 8 peripheral functions per port via register settings - simplifies PCB layout and enables pin reuse across variants |
| On-chip voltage detector (LVD) | 14 programmable threshold levels with selectable interrupt or reset action - ensures reliable brown-out recovery in variable supply environments |
Applications
| Industrial Motor Control | Smart Sensor Hub |
|---|---|
Use Scenario: Closed-loop BLDC motor drive with current sensing, PWM generation, and thermal monitoring. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, managing 3-phase PWM outputs (TAU), sampling analog currents (10-bit ADC), and logging faults via UART. Use Value: 66 μA/MHz active current and STOP-mode wake-on-ADC-event reduce system standby power; 512 KB flash accommodates safety-certified motor control stack. | Use Scenario: Multi-sensor node aggregating temperature, humidity, and vibration data for predictive maintenance. IC Role / Device Role / Timing Role: Central aggregator with I²C master (P60/P61) for sensor communication, RTC timestamping, and low-power sleep between 10-second sampling intervals. Use Value: Integrated 1.45 V reference and temperature sensor enable calibrated measurements without external components; BGO allows over-the-air parameter updates during operation. |
| Energy Metering Interface | Home Appliance UI Controller |
Use Scenario: Isolated metering front-end interfacing with metrology IC via SPI and reporting via RS-485. IC Role / Device Role / Timing Role: Communication bridge using CSI (SCK11/SI11/SDA11) for high-speed metrology data capture and UART/LIN for host MCU handshaking. Use Value: ELC links ADC conversion completion to DTC transfer - eliminates jitter in time-critical metering samples; 1.6–5.5 V operation tolerates wide input rail fluctuations. | Use Scenario: Touchless control panel with capacitive touch keys, LED dimming, and buzzer feedback. IC Role / Device Role / Timing Role: Dedicated key interrupt handler (INTP0–INTP9), 8-bit DAC for smooth LED current control, and PCLBUZ0/1 for audible alerts. Use Value: On-chip key interrupt function reduces external debounce circuitry; dual DAC channels enable independent brightness/tone control without external DACs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LGAFA#50 | Same 64-pin LQFP-0.65mm package, identical 512 KB flash/48 KB RAM, but rated for -40°C to +105°C (G-field industrial) | Required for extended-temperature environments (e.g., under-hood automotive, high-ambient factory floors) | Select when ambient operating temperature exceeds +85°C; otherwise, R5F104LFAFA#50 offers cost-optimized A-field qualification. |
| R5F104LHAFA#50 | Same package and memory, but 192 KB flash / 20 KB RAM - reduced code/data capacity, lower BOM cost | Suitable for simpler control tasks where full 512 KB footprint is unnecessary (e.g., basic appliance timers, lighting sequencers) | Choose when application firmware size is <192 KB and cost sensitivity outweighs future scalability needs. |
Compared with R5F104LGAFA#50 and R5F104LHAFA#50, the R5F104LFAFA#50 provides optimal balance of industrial temperature margin (-40°C to +85°C), full 512 KB flash headroom for feature-rich firmware, and pin-compatible upgrade path to G-field or memory-down variants without PCB redesign.
Availability
R5F104LFAFA#50 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor hubs, energy metering interfaces, and home appliance UI controllers requiring stable component supply and long-term production continuity.
Supply support for R5F104LFAFA#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 IoT markets.
The RL78/G14 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, energy-efficient embedded systems - emphasizing ultra-low active/standby current, integrated analog peripherals, and simplified development with scalable memory and pin options.
FAQ
What is the operating temperature range for the R5F104LFAFA#50?
The R5F104LFAFA#50 is qualified for industrial applications with an operating ambient temperature range of -40°C to +85°C (A-field specification). This is confirmed in the ordering information section of the R01DS0053EJ0370 datasheet, where the "A" suffix denotes consumer/industrial grade at this temperature span. It does not support the extended -40°C to +105°C (G-field) range.
Does the R5F104LFAFA#50 support background data flash rewriting (BGO)?
Yes, the R5F104LFAFA#50 supports Background Operation (BGO) for data flash memory. As specified in the datasheet, instructions can be executed from program memory while data flash is being rewritten, enabling seamless firmware updates or parameter storage without halting application execution. This applies to its 8 KB data flash with 1,000,000 write/erase cycles (typical).
What package type and pin count does the R5F104LFAFA#50 use?
The R5F104LFAFA#50 uses a 64-pin LQFP package with 0.65 mm pitch, as indicated by the "FA" package code in the part number and confirmed in Table 1-1 (page 6) of R01DS0053EJ0370. Its Renesas code part number PLQP0064JA-A/PLQP0064JB-A verifies the 12 × 12 mm body size and RoHS-compliant lead-free finish.
How much code flash and RAM does the R5F104LFAFA#50 include?
The R5F104LFAFA#50 integrates 512 KB of code flash memory and 48 KB of on-chip RAM. These values are explicitly listed in the "ROM, RAM capacities" table (page 2) for the "64 pins" row under the "512 KB" flash column and "48 KB" RAM column, matching the "L" flash capacity code and confirmed across multiple device variants in the RL78/G14 family.
Which serial interfaces are available on the R5F104LFAFA#50?
The R5F104LFAFA#50 supports up to 4 UART/LIN channels, 10 I²C/simplified I²C channels, and 8 CSI (SPI-compatible) channels. These are allocated across dedicated pins such as P60/P61 (I²C), P10–P17 (CSI/I²C/UART), and P00/P01 (UART1), with flexibility enabled by the Peripheral I/O Redirection (PIOR) registers per the datasheet's "Serial Interfaces" feature list.
R5F104LFAFA#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G14
- 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:
- 12K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 12x8/10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104LFAFA#50 FAQ
1.How can I place an order for R5F104LFAFA#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LFAFA#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 R5F104LFAFA#50 reliable?
The price and inventory of R5F104LFAFA#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LFAFA#50 is usually 5 days.
3.What payment methods are accepted for R5F104LFAFA#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LFAFA#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LFAFA#50?
R5F104LFAFA#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LFAFA#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 R5F104LFAFA#50?
For technical support, including R5F104LFAFA#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LFAFA#50 requirements.
6.How does Aetrix verify that R5F104LFAFA#50 is sourced from the original manufacturer or authorized distributors?
All R5F104LFAFA#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 R5F104LFAFA#50 meets industry standards.
7.What is the process for return or replacement of R5F104LFAFA#50?
All R5F104LFAFA#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LFAFA#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 R5F104LFAFA#50 part is unused and in its original packaging.
Return procedure for R5F104LFAFA#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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