Renesas R5F104LDAFB#10
- Part No.:
- R5F104LDAFB#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LDAFB#10.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 64LFQFP
- Quantity:
- Payment:

- Shipping:

Inventory:1,280
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Product details
Overview
R5F104LDAFB#10 from Renesas is a 64-pin LFQFP, 0.5 mm pitch, industrial-grade (D) RL78/G14 16-bit MCU with 48 KB code flash, 4 KB data flash, 4 KB RAM, 1.6–5.5 V operation, and ultra-low-power HALT/STOP/SNOOZE modes-designed for battery-powered sensor nodes and industrial control interfaces.
For engineers reviewing the R5F104LDAFB#10 datasheet, R5F104LDAFB#10 pinout, R5F104LDAFB#10 application, or R5F104LDAFB#10 equivalent, key selection criteria include its 64-pin LFQFP-0.5 mm package, integrated RTC + LVD + 10-bit ADC (16 ch), UART/SPI/I²C serial support, and -40°C to +85°C industrial temperature rating.
Technical Context
The R5F104LDAFB#10 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 µs (@32 MHz) to 30.5 µs (@32.768 kHz), and includes multiply/divide/accumulate instructions. It integrates a 16-bit Timer Array Unit (TAU) with up to 8 channels, plus dedicated RTC, watchdog, and interval timers.
Its peripheral set includes 3 UART/LIN channels, 3–8 CSI (SPI-compatible) channels, 4–10 I²C/simplified I²C channels, 16-channel 10-bit ADC with internal 1.45 V reference and temperature sensor, and dual 8-bit D/A converters-configured via register-based peripheral I/O redirection (PIOR0/1) for flexible pin assignment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control at low power |
| Max Clock | 32 MHz (44 DMIPS); supports high-speed operation while maintaining 66 μA/MHz efficiency |
| Flash/RAM | 48 KB code flash + 4 KB data flash + 4 KB RAM; supports background rewriting and boot swapping |
| ADC | 10-bit resolution, 16 analog inputs, internal 1.45 V reference, and on-chip temperature sensor |
| Serial Interfaces | 3 UART/LIN, 3–8 CSI (SPI-compatible), 4–10 I²C/simplified I²C channels |
| Timers | Timer Array Unit (TAU) with up to 8 channels, 12-bit interval timer, calendar RTC, and watchdog timer |
| Supply Range | 1.6 V to 5.5 V; enables direct interface with 1.8/2.5/3.3 V peripherals without level shifters |
Pinout & Package
Package: 64-pin LFQFP, 10 × 10 mm, 0.5 mm pitch, industrial-grade (D) temperature range (-40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P01 | General-purpose I/O / TxD1/RxD1 | UART channel 1 pins with TRGCLKA/B for trace clocking; support TTL input and N-ch open-drain output |
| P10–P17 | Multi-function I/O / SPI/I²C/UART | Configurable serial interface pins (SCK11/SDA11/TRDIOD1 etc.) assigned via PIOR0/1 registers |
| P20–P27 | Analog inputs / AVREFP/AVREFM | 16-channel ADC inputs with dedicated analog reference pins; support differential measurement |
| P30–P31 | INTP3/RTC1HZ / TI03/TO03 | Real-time clock output (1 Hz) and timer I/O; enables low-jitter timing and event capture |
| P60–P62 | SCLA0/SDAA0/SSI00 | I²C master/slave interface and synchronous serial I/O; supports multi-master arbitration |
| P121–P124 | X1/X2/XT1/XT2 | Crystal oscillator inputs for main (1–20 MHz) and sub (32.768 kHz) clocks; enables precise RTC and system timing |
| RESET / REGC / VDD / VSS | Reset control / Regulator capacitor / Power rails | On-chip POR/LVD; REGC requires 0.47–1 µF capacitor to VSS for stable voltage regulation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.60 μA typical current draw with RTC and LVD active-enables multi-year battery life in sensor endpoints |
| Background data flash rewrite | Allows full program execution from code flash while updating data flash-no interrupt latency or system freeze |
| Peripheral I/O redirection | PIOR0/1 registers enable dynamic remapping of UART/SPI/I²C functions to alternate pins-simplifies PCB layout reuse |
| On-chip voltage detector (LVD) | 14 programmable threshold levels (1.6–4.9 V) with interrupt or reset output-prevents erratic behavior during brown-out |
| Event Link Controller (ELC) | Links 19–26 peripheral events (e.g., ADC EOC, timer overflow) directly to other peripherals-reduces CPU overhead |
Applications
| Industrial Sensor Node | Smart HVAC Controller |
|---|---|
Use Scenario: Battery-powered temperature/humidity/pressure sensing node with wireless telemetry. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, calibration, low-power scheduling, and UART-to-RF bridge logic. Use Value: 0.60 μA STOP mode extends 2× AA battery life beyond 5 years; integrated 10-bit ADC and temperature sensor eliminate external components. | Use Scenario: Wall-mounted HVAC zone controller managing fan speed, valve position, and ambient sensing. IC Role / Device Role / Timing Role: Real-time coordinator of PWM fan drivers, I²C temperature sensors, and LIN bus communication to central unit. Use Value: RTC with calendar alarm enables precise scheduled ventilation; 3 UART/LIN channels support local UI, sensor network, and building management system links. |
| Programmable Logic Relay | Energy Meter Interface Module |
Use Scenario: DIN-rail mounted relay module with configurable digital I/O, timing, and serial monitoring. IC Role / Device Role / Timing Role: Deterministic logic engine implementing time-delayed switching, pulse counting, and Modbus RTU over UART. Use Value: 44 DMIPS at 32 MHz ensures sub-millisecond response to input changes; 64-pin LFQFP provides ample GPIO for discrete I/O expansion. | Use Scenario: Sub-metering add-on board interfacing with polyphase energy ICs via SPI and reporting via RS-485. IC Role / Device Role / Timing Role: SPI master to metrology ADC, UART-to-RS485 converter, and secure data logger using data flash. Use Value: 4 KB data flash rated for 1M rewrites stores tamper-proof kWh logs; 1.6–5.5 V supply tolerates wide AC-DC rail variation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LEAFB#10 | Same package and pinout; 64 KB code flash, 4 KB data flash, 5.5 KB RAM | Higher flash/RAM supports larger firmware with OTA update capability | Select when firmware size exceeds 48 KB or additional RAM is needed for protocol stacks |
| R5F104LGAFB#10 | Same package and pinout; 96 KB code flash, 8 KB data flash, 12 KB RAM | Enhanced memory and data flash endurance (1M cycles) suit long-life logging systems | Choose for applications requiring extended data retention or field-upgradable calibration tables |
Compared with R5F104LDAFB#10, R5F104LEAFB#10 offers +16 KB flash and +1.5 KB RAM for modest firmware growth, while R5F104LGAFB#10 doubles flash and data flash capacity-making it suitable for complex control algorithms and persistent data storage where longevity matters.
Availability
R5F104LDAFB#10 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC controllers, and programmable logic relays requiring stable component supply across extended production lifecycles.
Supply support for R5F104LDAFB#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, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G14 product line delivers true low-power performance (66 μA/MHz, 0.60 μA STOP) for cost-sensitive industrial and consumer control applications requiring rich analog integration and robust serial connectivity.
FAQ
What is the operating temperature range for the R5F104LDAFB#10?
The R5F104LDAFB#10 is rated for industrial operation from -40°C to +85°C (denoted by the 'D' in the part number). This range ensures reliable performance in factory automation, building controls, and outdoor sensor enclosures without thermal derating.
Does the R5F104LDAFB#10 support in-circuit debugging?
Yes, the R5F104LDAFB#10 includes an on-chip debug function compatible with Renesas E2 emulator and CS+ IDE. Debug access uses dedicated pins (e.g., P40/TOOL0, P50/P51) and supports breakpoints, watchpoints, and flash programming during development.
How many UART/LIN interfaces does the R5F104LDAFB#10 provide?
The R5F104LDAFB#10 provides three UART channels with LIN-bus support. These are implemented on pins P13/P14 (UART2), P00/P01 (UART1), and P50/P51 (UART0), all configurable via the peripheral I/O redirection registers (PIOR0/1).
What is the maximum ADC resolution and channel count on the R5F104LDAFB#10?
The R5F104LDAFB#10 features a 10-bit successive-approximation ADC with up to 16 analog input channels (ANI0–ANI19, excluding reserved pins). It includes an internal 1.45 V reference and on-die temperature sensor for self-calibration.
Is the R5F104LDAFB#10 pin-compatible with other RL78/G14 variants in 64-pin LFQFP?
Yes, the R5F104LDAFB#10 shares identical pinout and package (64-pin LFQFP, 0.5 mm pitch) with all other RL78/G14 devices ending in "AFB", including R5F104LEAFB#10 and R5F104LGAFB#10-enabling drop-in replacement within the same memory/configuration family.
R5F104LDAFB#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:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 5.5K 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:
R5F104LDAFB#10 FAQ
1.How can I place an order for R5F104LDAFB#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LDAFB#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 R5F104LDAFB#10 reliable?
The price and inventory of R5F104LDAFB#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LDAFB#10 is usually 5 days.
3.What payment methods are accepted for R5F104LDAFB#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LDAFB#10 transactions.
Note: Certain payment methods may incur a processing fee.
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R5F104LDAFB#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LDAFB#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 R5F104LDAFB#10?
For technical support, including R5F104LDAFB#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LDAFB#10 requirements.
6.How does Aetrix verify that R5F104LDAFB#10 is sourced from the original manufacturer or authorized distributors?
All R5F104LDAFB#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 R5F104LDAFB#10 meets industry standards.
7.What is the process for return or replacement of R5F104LDAFB#10?
All R5F104LDAFB#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LDAFB#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 R5F104LDAFB#10 part is unused and in its original packaging.
Return procedure for R5F104LDAFB#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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