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Renesas R5F104LFAFB#X0
- Part No.:
- R5F104LFAFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LFAFB#X0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,127
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Product details
Overview
R5F104LFAFB#X0 from Renesas is a 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), industrial-grade RL78/G14 16-bit microcontroller with 512 KB flash, 48 KB RAM, and 8 KB data flash. It operates from 1.6–5.5 V, delivers 44 DMIPS at 32 MHz, and achieves ultra-low power consumption (66 μA/MHz active, 0.60 μA in RTC+LVD mode), targeting battery-powered industrial control and sensor nodes.
For engineers reviewing the R5F104LFAFB#X0 datasheet, R5F104LFAFB#X0 pinout, R5F104LFAFB#X0 application, or R5F104LFAFB#X0 equivalent, key selection criteria include its integrated real-time clock with calendar, 20-channel 10-bit ADC, dual UART/LIN support, and hardware DTC/ELC for deterministic low-power peripheral coordination.
Technical Context
The R5F104LFAFB#X0 implements the RL78 CPU core with a 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz). Its on-chip high-accuracy oscillator offers ±1.0% stability across –40°C to +105°C, eliminating external crystal requirements for many timing-critical applications.
It integrates a Data Transfer Controller (DTC) with chain transfer capability and an Event Link Controller (ELC) enabling direct hardware-triggered peripheral activation without CPU intervention-critical for deterministic response in motor control and industrial I/O systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline and multiply/divide instructions |
| Max Clock Speed | 32 MHz - enables 44 DMIPS performance for real-time control loops |
| Flash Memory | 512 KB code flash - supports large firmware images and bootloader + application separation |
| Data Flash | 8 KB with 1M rewrite cycles - provides nonvolatile parameter storage without external EEPROM |
| RAM | 48 KB on-chip SRAM - accommodates complex stacks, buffers, and real-time data processing |
| ADC | 10-bit resolution, 20 input channels, internal 1.45 V reference - enables precision analog sensing across multiple sensors |
| Operating Temp | –40°C to +105°C (G-grade) - certified for under-hood automotive and industrial environments |
Pinout & Package
Package: 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 / X1 | Crystal input | Connects to external 32.768 kHz crystal for RTC accuracy; optional when using internal oscillator |
| P122 / X2 / EXCLK | Crystal output / external clock input | Completes crystal oscillator circuit or accepts external clock source up to 20 MHz |
| P137 / INTP0 | Interrupt input 0 | Dedicated wake-up/interrupt pin with configurable pull-up; supports low-power event detection |
| P60 / SCLA0 | I²C bus clock | Primary I²C channel clock line - supports standard/fast-mode communication with slave peripherals |
| P61 / SDAA0 | I²C bus data | Primary I²C channel data line - enables sensor and PMIC interfacing with hardware ACK/NACK handling |
| P16 / TI01 / TO01 / INTP5 | Timer input/output / interrupt | Configurable as capture/compare/PWM output or external event counter - critical for motor phase timing |
| P17 / TI02 / TO02 / TRDIOA0 | Timer input/output / serial interface | Dual-role pin supporting timer functions and UART0 TX/RX via peripheral redirection - saves PCB routing |
| REGC | Regulator capacitor terminal | Must connect 0.47–1 μF capacitor to VSS to stabilize internal voltage regulator - mandatory for reliable operation |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE mode | Permits background data flash rewriting while CPU remains halted - enables seamless firmware updates without system freeze |
| Event Link Controller (ELC) | Direct hardware linking of 19–26 event sources to peripherals - eliminates interrupt latency in time-critical signal chains |
| Real-time clock (RTC) | Full calendar (99-year range), alarm, and clock correction - provides accurate timestamping without external RTC IC |
| Hardware DTC | Supports block, repeat, and chain transfers triggered by 32+ sources - offloads DMA tasks from CPU during sensor acquisition |
| On-chip voltage detector (LVD) | 14-level programmable reset/interrupt threshold - protects against brown-out in wide-input industrial power supplies |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
|
Use Scenario: Closed-loop control of BLDC motors in HVAC blowers and factory automation drives. IC Role / Device Role / Timing Role: Main controller executing FOC algorithms, PWM generation, and current sensing via ADC. Use Value: Integrated 16-bit timers with complementary outputs and ELC-triggered ADC sampling ensure sub-microsecond timing alignment between PWM edges and current measurement. |
Use Scenario: Battery-powered environmental monitoring node with temperature, humidity, and CO₂ sensing. IC Role / Device Role / Timing Role: System-on-chip managing sensor I²C reads, RTC-based wakeup scheduling, and low-power data logging. Use Value: 0.60 μA STOP mode with RTC + LVD active extends 2× AA battery life beyond 5 years; 20-channel ADC interfaces multiple analog sensors without external mux. |
| Automotive Body Control | Home Appliance UI Controller |
|
Use Scenario: Door module controlling window lift, mirror adjustment, and interior lighting in passenger vehicles. IC Role / Device Role / Timing Role: LIN bus master coordinating with slave actuators; handles diagnostics and power management. Use Value: Dual UART/LIN-capable channels enable simultaneous LIN communication and debug port access; G-grade temp rating ensures reliability under hood exposure. |
Use Scenario: Touchless control panel for washing machines and dishwashers with capacitive touch and buzzer feedback. IC Role / Device Role / Timing Role: Front-end UI processor managing touch sensing, LED/buzzer output, and appliance state machine. Use Value: On-chip PCLBUZ modules drive piezo buzzers directly; N-ch open-drain I/Os interface safely with 3.3 V touch controllers and 5 V display drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LGAFB#X0 | Same package and pinout; 384 KB flash, 32 KB RAM, 8 KB data flash | Lower memory footprint suits cost-sensitive designs with smaller firmware and fewer runtime buffers | Select when application firmware fits within 384 KB and 32 KB RAM suffices for real-time task stacks |
| R5F104LJAFB#X0 | Same package and pinout; 256 KB flash, 20 KB RAM, 8 KB data flash | Reduced memory and peripheral count targets simpler control tasks like basic power sequencing or lighting control | Choose for entry-level industrial controls where full 512 KB flash and 48 KB RAM are unnecessary |
Compared with R5F104LFAFB#X0, the R5F104LGAFB#X0 retains identical peripheral set and packaging but reduces flash/RAM for cost optimization, while R5F104LJAFB#X0 further scales down memory and removes select advanced timers-making both viable for less demanding implementations without PCB redesign.
Availability
R5F104LFAFB#X0 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, automotive body electronics, home appliance UIs, and battery-powered metering requiring stable component supply and long-term lifecycle support.
Supply support for R5F104LFAFB#X0 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/G14 family is engineered for ultra-low-power general-purpose embedded control, balancing performance, integration, and energy efficiency in space-constrained industrial and consumer applications.
FAQ
What is the maximum operating frequency and associated performance of the R5F104LFAFB#X0?
The R5F104LFAFB#X0 operates at up to 32 MHz with its on-chip high-speed oscillator, delivering 44 DMIPS of computational throughput. This performance level supports real-time control algorithms, multi-sensor data fusion, and protocol stack execution while maintaining sub-100 μA/MHz power efficiency. The core's 3-stage pipeline and built-in multiply/divide instructions further accelerate math-intensive tasks in the R5F104LFAFB#X0.
Does the R5F104LFAFB#X0 support in-system programming and secure firmware updates?
Yes, the R5F104LFAFB#X0 supports full in-system programming via its on-chip debug interface and includes self-programming capabilities for both code and data flash. It features boot swap functionality and flash shield window protection to prevent unauthorized access during firmware updates. These capabilities allow field upgrades and secure bootloader implementation without requiring external programming hardware for the R5F104LFAFB#X0.
How does the R5F104LFAFB#X0 handle low-power operation in battery-powered applications?
The R5F104LFAFB#X0 achieves 0.60 μA in STOP mode with only RTC and LVD active, and 66 μA/MHz in active mode-enabling multi-year operation on coin cells or AA batteries. Its SNOOZE mode permits background data flash writes while retaining low-power state, and the 14-level LVD ensures robust brown-out detection across varying battery discharge curves-all critical for reliable long-life deployment of the R5F104LFAFB#X0.
What communication interfaces are integrated into the R5F104LFAFB#X0?
The R5F104LFAFB#X0 integrates four UART channels (with LIN support), up to ten I²C/simplified I²C channels, and three to eight CSI (SPI-compatible) channels. It also supports simplified I²C with clock stretching and multi-master arbitration. These interfaces enable concurrent connectivity to displays, sensors, power management ICs, and automotive LIN networks-making the R5F104LFAFB#X0 suitable for complex multi-peripheral systems.
Is the R5F104LFAFB#X0 pin-compatible with other RL78/G14 variants in the same package?
Yes, all RL78/G14 devices in the 64-pin LFQFP (FB) package-including R5F104LFAFB#X0, R5F104LGAFB#X0, and R5F104LJAFB#X0-share identical pinouts and electrical characteristics. This allows direct substitution within the same footprint for memory- or feature-scaling without PCB revision, provided software accommodates differences in flash size, RAM allocation, and peripheral enablement for the specific R5F104LFAFB#X0 variant.
R5F104LFAFB#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G14
- Packaging:
- Tape & Reel (TR)
- 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:
- 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:
R5F104LFAFB#X0 FAQ
1.How can I place an order for R5F104LFAFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LFAFB#X0 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 R5F104LFAFB#X0 reliable?
The price and inventory of R5F104LFAFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LFAFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F104LFAFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LFAFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LFAFB#X0?
R5F104LFAFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LFAFB#X0 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 R5F104LFAFB#X0?
For technical support, including R5F104LFAFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LFAFB#X0 requirements.
6.How does Aetrix verify that R5F104LFAFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F104LFAFB#X0 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 R5F104LFAFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F104LFAFB#X0?
All R5F104LFAFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LFAFB#X0, 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 R5F104LFAFB#X0 part is unused and in its original packaging.
Return procedure for R5F104LFAFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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