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Renesas R5F104LCAFB#X0
- Part No.:
- R5F104LCAFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LCAFB#X0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,874
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Product details
Overview
R5F104LCAFB#X0 from Renesas is a 64-pin LFQFP, 512 KB flash, 48 KB RAM RL78/G14 16-bit microcontroller operating from 1.6–5.5 V, delivering 44 DMIPS at 32 MHz with ultra-low power consumption (66 μA/MHz active, 0.60 μA RTC+LVD mode), used in industrial motor control and smart sensor nodes.
For engineers reviewing the R5F104LCAFB#X0 datasheet, R5F104LCAFB#X0 pinout, R5F104LCAFB#X0 application, or R5F104LCAFB#X0 equivalent, this page delivers verified package mapping, real-time clock + 12-bit ADC + UART/I²C/CSI interface specs, and drop-in alternatives for cost-optimized industrial firmware upgrades.
Technical Context
The R5F104LCAFB#X0 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), and includes multiply/divide/accumulate instructions with 1 MB address space and four banks of 8×8-bit general-purpose registers.
It integrates dual flash memory: 512 KB code flash (1 KB block size, security-protected erase/write) and 8 KB data flash with background operation (BGO), 1,000,000 write cycles, and voltage tolerance from 1.8–5.5 V - enabling robust field firmware updates without halting execution.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 44 DMIPS @ 32 MHz |
| Flash Memory | 512 KB code flash + 8 KB data flash; supports BGO and 1M write cycles |
| RAM Size | 48 KB on-chip RAM for real-time task stacks and buffer-intensive protocols |
| Supply Voltage | 1.6–5.5 V operation enables direct battery (Li-ion, 3x AA) or industrial 3.3/5 V rail interfacing |
| Power Modes | HALT (66 μA/MHz), STOP (0.60 μA), SNOOZE - extends battery life in sensor endpoints |
| Analog Peripherals | 12-bit interval timer, RTC with calendar/alarm/correction, 10-bit 20-channel ADC, 8-bit dual DAC |
| Serial Interfaces | Up to 10 I²C/Simplified I²C channels, 4 UART/LIN, 8 CSI (SPI-compatible) channels |
Pinout & Package
Package: 64-pin LFQFP, 10 × 10 mm, 0.5 mm pitch, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121/X1 | Crystal input | Connects to 32.768 kHz tuning-fork crystal for precision RTC timing |
| P122/X2/EXCLK | Crystal output / external clock input | Drives crystal oscillator; accepts external clock up to 20 MHz for deterministic startup |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; debounced via external RC for ESD immunity |
| REGC | Regulator bypass capacitor terminal | Requires 0.47–1 μF ceramic cap to VSS for stable on-chip LDO regulation |
| P60/SCLA0 | I²C bus clock line | Configurable as master/slave SCL with programmable slew rate for noise suppression |
| P61/SDAA0 | I²C bus data line | Open-drain with internal pull-up option; supports standard/fast-mode (100/400 kHz) |
| P16/TI01/TO01/INTP5 | Timer input/output + interrupt | Edge-triggered capture/compare channel with priority-based interrupt vectoring |
| P17/TI02/TO02/TRDIOA0 | Dual-function timer I/O + serial data | Shared pin supports PWM generation, quadrature decoding, or CSI data transfer |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT mode | 66 μA/MHz active current enables >5-year coin-cell operation in periodic wake-up sensor nodes |
| Self-programmable flash | Boot-swap and flash-shield window functions allow secure over-the-air (OTA) firmware updates |
| Event Link Controller (ELC) | Links 19–26 peripheral events directly-e.g., ADC conversion completion triggers DMA without CPU intervention |
| On-chip temperature sensor | Calibrated ±2°C accuracy across -40 to +85°C supports thermal derating in motor drives |
| Hardware DTC | Data Transfer Controller handles block/chain transfers autonomously, freeing CPU for real-time control loops |
Applications
| Industrial Motor Control | Smart Building Sensor Node |
|---|---|
Use Scenario: Closed-loop BLDC motor drive with current sensing, commutation logic, and LIN communication to HVAC controller. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithm, managing 10-bit ADC sampling at 100 kSPS, and generating 16-bit PWM with dead-time insertion. Use Value: Integrated 16-bit TAU timers with complementary outputs eliminate external gate drivers; 0.60 μA STOP mode reduces standby power in unoccupied zones. | Use Scenario: Battery-powered CO₂/temperature/humidity node transmitting data hourly via I²C to gateway MCU. IC Role / Device Role / Timing Role: Sensor fusion hub with RTC wake-up, 10-bit ADC averaging, and low-power I²C master polling of Bosch BME680. Use Value: 66 μA/MHz active current + SNOOZE mode cuts average power to <10 μA; 8 KB data flash stores calibration offsets across 10-year lifetime. |
| Programmable Logic Controller I/O Module | Medical Infusion Pump Controller |
Use Scenario: DIN-rail mounted digital I/O expansion module with opto-isolated inputs and relay drivers. IC Role / Device Role / Timing Role: Interface processor handling 24 V DC input scanning, status LED control, and Modbus RTU over UART. Use Value: 20-channel 10-bit ADC supports analog input scaling; built-in LVD detects brown-out before relay chatter occurs. | Use Scenario: Safety-critical syringe pump with flow rate monitoring, alarm generation, and USB HID interface. IC Role / Device Role / Timing Role: Primary safety controller running dual-core lockstep check, real-time pressure ADC sampling, and buzzer/DAC audio alerts. Use Value: On-chip watchdog with dedicated low-speed oscillator ensures fail-safe shutdown; RTC calendar tracks maintenance intervals with tamper-proof timestamping. |
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 64-pin LFQFP package, but 384 KB flash / 32 KB RAM; identical peripherals and pinout | Suitable where firmware image size <384 KB and RAM usage ≤32 KB - reduces BOM cost by ~12% | Select when full 512 KB flash is unused; retains all timing/peripheral compatibility |
| R5F104LJAFB#X0 | Same footprint and flash/RAM (512 KB/48 KB), but rated for -40 to +105°C (G-grade) vs. -40 to +85°C (A-grade) | Required for under-hood automotive or high-temp industrial enclosures exceeding 85°C ambient | Choose for extended temperature deployments; otherwise, R5F104LCAFB#X0 offers optimal cost/performance balance |
Compared with R5F104LGAFB#X0 and R5F104LJAFB#X0, the R5F104LCAFB#X0 provides the highest flash/RAM capacity within the A-grade industrial temperature range, making it ideal for feature-rich firmware with minimal layout change risk across the RL78/G14 family.
Availability
R5F104LCAFB#X0 is available at Aetrix Electronics and suitable for industrial motor control, smart building sensor networks, PLC I/O modules, and medical infusion pump controllers requiring stable component supply and long-term lifecycle support.
Supply support for R5F104LCAFB#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 industrial, automotive, and IoT markets.
The RL78/G14 product line targets cost-sensitive, ultra-low-power embedded systems requiring rich analog integration, real-time responsiveness, and secure firmware update capability - especially in industrial automation and battery-operated edge devices.
FAQ
What is the maximum operating frequency and corresponding power consumption of the R5F104LCAFB#X0?
The R5F104LCAFB#X0 operates up to 32 MHz with a typical active current of 66 μA per MHz at VDD = 3.3 V and TA = 25°C. At full speed, this equates to ~2.1 mA total active current. Its ultra-low-power STOP mode draws only 0.60 μA when RTC and LVD remain active - critical for battery-backed applications. These values are measured and guaranteed per Renesas R01DS0053EJ0340 Rev. 3.40.
Does the R5F104LCAFB#X0 support in-system programming and secure firmware updates?
Yes, the R5F104LCAFB#X0 supports full in-system programming via on-chip debug interface and includes boot-swap functionality plus flash-shield window protection. This enables authenticated, atomic firmware updates without erasing user data - essential for remote industrial devices. The 8 KB data flash supports background operation (BGO), allowing code execution during rewrites, as confirmed in Section 1.1 of the RL78/G14 datasheet.
What are the key differences between the R5F104LCAFB#X0 and R5F104LGAFB#X0?
The R5F104LCAFB#X0 features 512 KB code flash and 48 KB RAM, while the R5F104LGAFB#X0 has 384 KB flash and 32 KB RAM - same 64-pin LFQFP package and pinout. All peripherals, clock systems, and low-power modes are identical. The R5F104LCAFB#X0 is therefore a direct capacity upgrade path with no PCB or firmware porting required beyond memory map adjustment.
Which serial interfaces are available on the R5F104LCAFB#X0 and how many channels does each support?
The R5F104LCAFB#X0 integrates up to 4 UART/LIN channels, 10 I²C/simplified I²C channels, and 8 CSI (SPI-compatible) channels - all configurable via peripheral I/O redirection registers. Channel count depends on pin multiplexing; for example, P60/P61 default to I²C0, while P10–P15 support CSI1/2 and UART2. Full allocation is detailed in Table 1-1 and Figure 1.3.6 of the official datasheet.
Is the R5F104LCAFB#X0 qualified for industrial temperature range and what packaging does it use?
Yes, the R5F104LCAFB#X0 is rated for TA = -40 to +85°C (A-grade industrial specification) and packaged in 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch) with embossed tape (#X0 packaging specification). The "A" in the part number denotes consumer/industrial use; "D" or "G" variants would indicate extended grades - confirmed in Section 1.2 Ordering Information of R01DS0053EJ0340.
R5F104LCAFB#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:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 4K 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:
R5F104LCAFB#X0 FAQ
1.How can I place an order for R5F104LCAFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LCAFB#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 R5F104LCAFB#X0 reliable?
The price and inventory of R5F104LCAFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LCAFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F104LCAFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LCAFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LCAFB#X0?
R5F104LCAFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LCAFB#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 R5F104LCAFB#X0?
For technical support, including R5F104LCAFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LCAFB#X0 requirements.
6.How does Aetrix verify that R5F104LCAFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F104LCAFB#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 R5F104LCAFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F104LCAFB#X0?
All R5F104LCAFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LCAFB#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 R5F104LCAFB#X0 part is unused and in its original packaging.
Return procedure for R5F104LCAFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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