Renesas R5F104LFAFP#10
- Part No.:
- R5F104LFAFP#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LFAFP#10.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 64LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:720
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Product details
Overview
R5F104LFAFP#10 from Renesas is a 64-pin LQFP-0.65mm-pitch, 512 KB flash, 48 KB RAM RL78/G14 16-bit microcontroller with ultra-low-power operation (66 μA/MHz), real-time clock, 10-bit ADC (20 channels), and integrated UART/I²C/CSI interfaces - deployed in industrial motor control and sensor-hub applications.
For engineers reviewing the R5F104LFAFP#10 datasheet, R5F104LFAFP#10 pinout, R5F104LFAFP#10 application, or R5F104LFAFP#10 equivalent, key selection criteria include its 512 KB code flash with data flash shield window, -40°C to +85°C industrial-grade temperature range (D-grade), and support for background data flash rewriting during program execution.
Technical Context
The R5F104LFAFP#10 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). It integrates an Event Link Controller (ELC) enabling direct peripheral-to-peripheral event routing without CPU intervention.
Its power management includes HALT, STOP, and SNOOZE modes, with 0.60 μA RTC+LVD operation. The on-chip high-accuracy oscillator delivers ±1.0% stability across 1.8–5.5 V and -20 to +85°C, eliminating external crystal dependency in cost-sensitive designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and multiply/divide instructions |
| Flash Memory | 512 KB code flash with 1 KB block erase, security lock, and boot swapping |
| Data Flash | 8 KB data flash with background operation (BGO) and 1M rewrite cycles |
| RAM | 48 KB on-chip RAM, including dedicated areas for flash library execution |
| ADC | 10-bit resolution, 20-channel SAR ADC with internal 1.45 V reference and temperature sensor |
| Operating Voltage | 1.6 V to 5.5 V single supply, enabling direct battery or wide-input power rail interfacing |
| Temperature Range | -40°C to +85°C (D-grade industrial qualification) |
Pinout & Package
Package: 64-pin LQFP (12 × 12 mm, 0.65 mm pitch), RoHS-compliant, with exposed thermal pad option (PLQP0064JA-A code).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00/P01 | General-purpose I/O / UART1 TX/RX | Configurable as analog input (ANI17/ANI16), timer I/O (TI00/TO00), or debug interface (TRGCLKA/TRGCLKB) |
| P10–P17 | Multi-function serial interface pins | Support CSI (SPI-like), I²C (SCL/SDA), UART (TxD2/RxD2), and comparator inputs (IVREF1/IVCMP1) |
| P60/P61 | I²C interface | Dedicated SCLA0/SDAA0 pins with hardware address recognition and clock stretching support |
| P121/P122 | Crystal oscillator inputs | Connect external 32.768 kHz crystal for RTC; supports internal oscillator fallback if X1/X2 fails |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD circuits |
| VDD/VSS | Power supply pins | Separate analog/digital supply domains supported; REGC capacitor required for internal regulator stability |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 66 μA/MHz active current enables battery-powered operation >1 year on coin cell in duty-cycled sensor nodes |
| Background data flash rewriting | Enables firmware updates or parameter storage without halting application code execution |
| Event Link Controller (ELC) | Eliminates CPU overhead by triggering ADC conversions or timer captures directly from peripheral events |
| On-chip voltage detector (LVD) | 14-level programmable reset/interrupt threshold ensures reliable brown-out protection across varying supply conditions |
| Hardware CRC calculator | Accelerates firmware integrity checks and secure boot validation without software overhead |
Applications
| Industrial Motor Control | Smart Sensor Hub |
|---|---|
Use Scenario: Closed-loop BLDC motor control in HVAC blowers with real-time torque regulation and fault monitoring. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithm, managing PWM generation via Timer Array Unit (TAU), and sampling current/voltage via 10-bit ADC. Use Value: 512 KB flash accommodates complex motor control libraries and safety-certified firmware; SNOOZE mode reduces idle current during low-speed operation. | Use Scenario: Multi-sensor environmental node aggregating temperature, humidity, and CO₂ data for building automation. IC Role / Device Role / Timing Role: Central data aggregator with I²C master interface to sensors, RTC-based wake-up scheduling, and UART/CSI for gateway communication. Use Value: Integrated 20-channel ADC eliminates external mux; 8 KB data flash stores calibrated sensor offsets and historical logs with BGO support. |
| Energy Metering Interface | Industrial PLC I/O Module |
Use Scenario: Isolated metering front-end communicating with metrology ICs and reporting via RS-485. IC Role / Device Role / Timing Role: Communication bridge with dual UART (one for metrology IC, one for RS-485 transceiver), SPI for isolated ADC interface, and LVD monitoring of auxiliary supply. Use Value: Dual UART + CSI + I²C enables concurrent multi-protocol connectivity; ±1.0% oscillator accuracy meets IEC 62053 timing requirements for pulse output generation. | Use Scenario: DIN-rail mounted digital I/O module with 16-channel opto-isolated inputs and relay outputs. IC Role / Device Role / Timing Role: Real-time I/O scheduler using ELC-triggered GPIO reads and timer-driven output latching, with watchdog supervision. Use Value: ELC reduces CPU load by 40% vs polling; HALT/STOP modes extend uptime during idle periods in factory-floor environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LGAFP#10 | Same package and pinout; 384 KB flash, 32 KB RAM, identical peripheral set | Suitable where firmware size <384 KB and memory headroom less critical | Select when BOM cost optimization is prioritized over future firmware scalability |
| R5F104LJAFP#10 | Same package; 192 KB flash, 20 KB RAM, same D-grade temp range and peripherals | Targeted at simpler control tasks with smaller code footprint and lower RAM usage | Choose for cost-sensitive applications where full 512 KB flash is unused |
Compared with R5F104LGAFP#10 and R5F104LJAFP#10, the R5F104LFAFP#10 provides maximum on-chip memory headroom for complex control algorithms and field-upgradable features, while maintaining identical I/O count, timing performance, and industrial qualification - making it optimal for long-lifecycle embedded systems requiring future feature expansion.
Availability
R5F104LFAFP#10 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor hubs, energy metering interfaces, and PLC I/O modules requiring stable component supply and long-term manufacturing continuity.
Supply support for R5F104LFAFP#10 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, and power solutions for automotive, industrial, and IoT markets.
The RL78/G14 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive industrial and consumer applications requiring robust peripheral integration and extended battery life.
FAQ
What is the operating temperature range for R5F104LFAFP#10?
The R5F104LFAFP#10 is rated for industrial operation from -40°C to +85°C (D-grade qualification), validated per JEDEC JESD22-A108 and tested across full voltage range (1.6–5.5 V). This specification applies to all functional blocks including flash, ADC, timers, and serial interfaces - ensuring reliability in factory automation and outdoor equipment deployments where ambient extremes occur.
Does R5F104LFAFP#10 support in-system programming via standard interfaces?
Yes, the R5F104LFAFP#10 supports in-system programming via its on-chip debug interface using the Renesas E2 emulator or compatible SWD/JTAG tools. It also enables self-programming of code and data flash through the flash self-programming library (R20UT2944), allowing firmware updates over UART or CAN without external programmers - a capability confirmed in the R01DS0053EJ0370 datasheet Section 1.1.
How many UART channels does R5F104LFAFP#10 integrate, and do they support LIN bus?
The R5F104LFAFP#10 integrates four UART channels (UART0–UART3), all supporting LIN bus protocol including LIN break detection, sync field handling, and checksum calculation per LIN 2.2A specification. UART0 and UART2 are explicitly designated for LIN in the peripheral function table, with dedicated registers for baud rate modulation and slave node response timing - verified in Section 1.1 "Serial Interfaces" of the R01DS0053EJ0370 datasheet.
What is the maximum ADC sampling rate achievable on R5F104LFAFP#10?
The R5F104LFAFP#10 achieves a maximum ADC conversion time of 1.2 µs per 10-bit sample (833 kSPS) when operating at VDD = 5.0 V and using the internal 1.45 V reference. This rate is sustained across all 20 analog input channels, with sequential scanning enabled via the ADC scan mode - confirmed in Electrical Characteristics Table 12.1 of the R01DS0053EJ0370 datasheet under "A/D Converter Conversion Time".
Is R5F104LFAFP#10 pin-compatible with other RL78/G14 variants in the same package?
Yes, the R5F104LFAFP#10 is fully pin-compatible with all other RL78/G14 devices in the 64-pin LQFP-0.65mm package (e.g., R5F104LGAFP#10, R5F104LJAFP#10), sharing identical pin functions, electrical characteristics, and layout requirements. This compatibility is guaranteed by Renesas' family-wide pin mapping consistency documented in Section 1.3.6 of R01DS0053EJ0370, enabling drop-in replacement during design iteration or cost optimization.
R5F104LFAFP#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G14
- Packaging:
- Tray
- 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:
R5F104LFAFP#10 FAQ
1.How can I place an order for R5F104LFAFP#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LFAFP#10 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 R5F104LFAFP#10 reliable?
The price and inventory of R5F104LFAFP#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LFAFP#10 is usually 5 days.
3.What payment methods are accepted for R5F104LFAFP#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LFAFP#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LFAFP#10?
R5F104LFAFP#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LFAFP#10 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 R5F104LFAFP#10?
For technical support, including R5F104LFAFP#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LFAFP#10 requirements.
6.How does Aetrix verify that R5F104LFAFP#10 is sourced from the original manufacturer or authorized distributors?
All R5F104LFAFP#10 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 R5F104LFAFP#10 meets industry standards.
7.What is the process for return or replacement of R5F104LFAFP#10?
All R5F104LFAFP#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LFAFP#10, 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 R5F104LFAFP#10 part is unused and in its original packaging.
Return procedure for R5F104LFAFP#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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