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Renesas R5F104LFAFB#V0
- Part No.:
- R5F104LFAFB#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LFAFB#V0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,843
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Product details
Overview
R5F104LFAFB#V0 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 supports ultra-low-power modes (66 μA/MHz active, 0.60 μA RTC+LVD). It targets battery-powered industrial sensors and motor control interfaces requiring integrated analog peripherals and secure firmware updates.
For engineers reviewing the R5F104LFAFB#V0 datasheet, R5F104LFAFB#V0 pinout, R5F104LFAFB#V0 application, or R5F104LFAFB#V0 equivalent, key selection criteria include its 64-pin LFQFP-0.5mm package, 512 KB/48 KB/8 KB memory partition, dual UART + I²C + CSI serial interfaces, 20-channel 10-bit ADC, and support for background data flash rewriting with 1M-cycle endurance.
Technical Context
The R5F104LFAFB#V0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz). Its power management includes HALT, STOP, and SNOOZE modes, plus on-chip LVD with 14 selectable voltage thresholds and POR circuitry.
Peripheral integration includes Timer Array Unit (TAU) with up to 8 channels, Real-Time Clock with calendar/alarm/correction, 12-bit interval timer, watchdog timer, and Event Link Controller (ELC) enabling direct peripheral-to-peripheral event routing without CPU intervention - reducing latency and interrupt overhead in deterministic control loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and multiply/divide instructions |
| Max Operating Frequency | 32 MHz - delivers 44 DMIPS for real-time control and protocol stack execution |
| Flash Memory | 512 KB code flash - supports secure block erase prohibition and boot swap for robust firmware updates |
| Data Flash | 8 KB with background operation (BGO) - enables concurrent program execution during data logging or parameter storage |
| RAM | 48 KB on-chip RAM - sufficient for multi-threaded RTOS stacks, communication buffers, and sensor fusion algorithms |
| ADC | 10-bit resolution, 20-channel SAR ADC - includes internal 1.45 V reference and temperature sensor for self-calibration |
| Supply Voltage | 1.6–5.5 V - allows direct interface with 1.8 V, 3.3 V, and 5 V peripherals without level shifters |
| Operating Temperature | −40°C to +85°C (Industrial Grade D) - qualified for factory automation and building control 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 |
|---|---|---|
| P10–P17 | Multi-function I/O with serial interface assignment | Configurable as CSI/SCL/SDA/UART pins - supports simultaneous SPI, I²C, and LIN via peripheral I/O redirection registers |
| P20–P27 | Analog input group (ANI0–ANI7) | Dedicated 10-bit ADC inputs with AVREFP/AVREFM references - enables ratiometric sensing and noise-rejecting differential measurements |
| P30–P31 | RTC and timer I/O | Supports RTC1HZ output and TI03/TO03 capture/compare - critical for time-stamped event logging and PWM generation |
| P50–P51 | UART0 primary channel (RxD0/TxD0) | Hardware UART with TOOLRxD/TOOLTxD debug capability - enables in-system programming and real-time trace without external adapters |
| P60–P61 | I²C master/slave interface (SCLA0/SDAA0) | Standard-mode (100 kbps) and fast-mode (400 kbps) I²C - connects directly to EEPROMs, temperature sensors, and PMICs |
| P121–P122 | Crystal oscillator inputs (X1/X2) | Supports 32.768 kHz crystal for RTC accuracy ±20 ppm - eliminates need for external RTC IC in time-critical applications |
| REGC | Internal regulator bypass capacitor terminal | Requires 0.47–1 μF capacitor to VSS - stabilizes on-chip voltage regulator for consistent low-power mode behavior |
| VDD/VSS | Power supply pins | Dual VDD/VSS pairs reduce ground bounce and improve ADC SNR in mixed-signal operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 66 μA/MHz active current and 0.60 μA STOP mode - extends battery life in wireless sensor nodes beyond 10 years |
| Self-programmable flash | Boot swap and flash shield window functions - enable field firmware updates with rollback safety and IP protection |
| Background data flash rewrite | BGO allows full-speed program execution while storing calibration data or event logs - no CPU stall or timing jitter |
| Event Link Controller (ELC) | Direct hardware linking of 19–26 peripheral events - eliminates ISR latency in motor commutation or ADC-triggered PWM |
| On-chip voltage detector | 14-level LVD with interrupt/reset options - provides precise brown-out detection for graceful shutdown in 24 V industrial supplies |
| Dual UART with LIN support | UART0/UART2 with LIN bus physical layer compliance - simplifies automotive body electronics and HVAC control integration |
Applications
| Industrial Motor Control | Smart Energy Metering |
|---|---|
Use Scenario: Closed-loop BLDC motor drive in HVAC fan modules with thermal monitoring and speed regulation. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, managing gate driver PWM via TAU timers, and sampling current/voltage via 20-channel ADC. Use Value: Integrated 10-bit ADC with internal reference and ELC-triggered PWM ensures <1 μs timing precision between current sampling and duty cycle update. | Use Scenario: DIN-rail mounted electricity meter with tamper detection, tariff switching, and RS-485 communication. IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC interface, RTC-based billing intervals, and isolated UART/RS-485 transceiver control. Use Value: 8 KB data flash with 1M-cycle endurance stores 10+ years of consumption logs; RTC calendar function enables accurate monthly billing cycles. |
| Wireless Sensor Node | Factory Automation I/O Module |
Use Scenario: Battery-powered predictive maintenance node monitoring vibration, temperature, and humidity in rotating equipment. IC Role / Device Role / Timing Role: Low-power host MCU acquiring sensor data via I²C/CSI, performing FFT preprocessing, and waking radio only on threshold events. Use Value: 0.60 μA STOP mode with RTC wake-up and 66 μA/MHz active current enables >5-year operation on two AA cells. | Use Scenario: Modular digital I/O expansion unit for PLC systems with opto-isolated inputs and relay drivers. IC Role / Device Role / Timing Role: Protocol bridge translating Modbus RTU over RS-485 to local GPIO/PWM control with deterministic response. Use Value: Dual UART with hardware LIN support enables seamless integration into legacy industrial networks; 512 KB flash hosts dual Modbus stack + diagnostics firmware. |
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#V0 | Same 64-pin LFQFP package, but 384 KB flash / 32 KB RAM / 8 KB data flash | Suitable for cost-optimized designs where firmware size <384 KB and RAM usage ≤32 KB | Select when full 512 KB flash is unnecessary and BOM cost reduction is prioritized without changing PCB layout |
| R5F104LJAFB#V0 | Same package and memory sizes, but rated for −40°C to +105°C (G grade) instead of +85°C (D grade) | Required for under-hood automotive or high-temperature industrial enclosures | Choose when ambient operating temperature exceeds +85°C; otherwise, R5F104LFAFB#V0 offers identical functionality at lower cost |
Compared with R5F104LGAFB#V0 and R5F104LJAFB#V0, the R5F104LFAFB#V0 uniquely balances maximum code density (512 KB), full RAM headroom (48 KB), and industrial-grade thermal qualification (−40°C to +85°C) - making it optimal for complex, future-proofed embedded control where firmware scalability and long-term reliability are critical.
Availability
R5F104LFAFB#V0 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, wireless sensor nodes, and factory automation I/O modules requiring stable component supply across multi-year production cycles.
Supply support for R5F104LFAFB#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 industrial, automotive, and enterprise applications.
The RL78/G14 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and thermally constrained industrial control systems - emphasizing integrated analog peripherals, secure firmware update capability, and deterministic real-time performance.
FAQ
What is the maximum clock frequency supported by the R5F104LFAFB#V0?
The R5F104LFAFB#V0 supports a maximum operating frequency of 32 MHz using the high-speed on-chip oscillator. At this frequency, it achieves 44 DMIPS performance. The oscillator offers selectable frequencies from 1 MHz to 64 MHz with ±1.0% accuracy across 1.8–5.5 V and −20°C to +85°C, and the R5F104LFAFB#V0 is fully characterized for stable operation at 32 MHz in its specified industrial temperature range.
Does the R5F104LFAFB#V0 include an integrated RTC with calendar function?
Yes, the R5F104LFAFB#V0 includes a dedicated real-time clock (RTC) peripheral with full calendar support for 99 years, alarm interrupt capability, and clock correction function. It operates independently in STOP mode using the 32.768 kHz subsystem clock, consuming only 0.60 μA total system current - enabling accurate timekeeping in battery-backed applications without external RTC ICs.
How many serial communication interfaces does the R5F104LFAFB#V0 provide?
The R5F104LFAFB#V0 provides three UART channels (including LIN-bus support), four to ten I²C/simplified I²C channels, and three to eight CSI (SPI-compatible) channels. Specifically, the R5F104LFAFB#V0 variant implements UART0, UART2, I²C0, I²C1, CSI0, CSI1, and CSI2 - enabling concurrent communication with multiple sensors, displays, and transceivers without software bit-banging.
What is the endurance rating for data flash writes on the R5F104LFAFB#V0?
The data flash memory in the R5F104LFAFB#V0 is rated for 1,000,000 write/erase cycles (typical) across the full operating voltage range of 1.8–5.5 V. This endurance, combined with background operation (BGO), allows reliable long-term data logging - such as calibration coefficients, usage counters, or event timestamps - without interrupting application code execution.
Is the R5F104LFAFB#V0 pin-compatible with other RL78/G14 variants in the same package?
Yes, all RL78/G14 devices in the 64-pin LFQFP-0.5mm package - including R5F104LFAFB#V0, R5F104LGAFB#V0, and R5F104LJAFB#V0 - share identical pinouts and electrical characteristics. This enables direct substitution within the same footprint for memory or temperature grade optimization, provided firmware is reconfigured to match the target device's flash/RAM map and feature set.
R5F104LFAFB#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G14
- 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:
- 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#V0 FAQ
1.How can I place an order for R5F104LFAFB#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LFAFB#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 R5F104LFAFB#V0 reliable?
The price and inventory of R5F104LFAFB#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LFAFB#V0 is usually 5 days.
3.What payment methods are accepted for R5F104LFAFB#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LFAFB#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LFAFB#V0?
R5F104LFAFB#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LFAFB#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 R5F104LFAFB#V0?
For technical support, including R5F104LFAFB#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LFAFB#V0 requirements.
6.How does Aetrix verify that R5F104LFAFB#V0 is sourced from the original manufacturer or authorized distributors?
All R5F104LFAFB#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 R5F104LFAFB#V0 meets industry standards.
7.What is the process for return or replacement of R5F104LFAFB#V0?
All R5F104LFAFB#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LFAFB#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 R5F104LFAFB#V0 part is unused and in its original packaging.
Return procedure for R5F104LFAFB#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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