Renesas R5F104FADFP#30
- Part No.:
- R5F104FADFP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F104FADFP#30.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 44LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F104FADFP#30 from Renesas is a 44-pin LQFP-packaged RL78/G14 16-bit microcontroller with 96 KB flash, 12 KB RAM, and 8 KB data flash, operating from 1.6–5.5 V at -40 to +85°C (industrial grade D). It delivers 44 DMIPS at 32 MHz, features ultra-low power consumption (66 μA/MHz active, 0.60 μA RTC+LVD), and integrates UART, I²C, SPI, 12-channel 10-bit ADC, RTC, and hardware DTC/ELC for embedded control in metering and industrial HMI.
For engineers reviewing the R5F104FADFP#30 datasheet, R5F104FADFP#30 pinout, R5F104FADFP#30 application, or R5F104FADFP#30 equivalent, key selection criteria include its 44-pin LQFP-0.8 mm pitch package, industrial temperature rating (D-grade), 96 KB flash / 12 KB RAM memory configuration, integrated analog peripherals (ADC, DAC, comparator), and support for low-power modes including STOP, HALT, and SNOOZE.
Technical Context
The R5F104FADFP#30 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 embeds a high-accuracy ±1.0% on-chip oscillator (selectable 1–64 MHz), event-driven peripheral control via ELC (19–26 event sources), and background data flash rewriting with 1M-cycle endurance.
Its peripheral set includes Timer Array Unit (TAU) with up to 8 channels, 12-bit interval timer, real-time clock with calendar/alarm, watchdog timer, and serial interfaces: 3–4 UART/LIN channels, 4–10 I²C/simplified I²C channels, and 3–8 CSI (SPI-compatible) channels - all configurable via peripheral I/O redirection registers (PIOR0/1).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing and low-power interrupt response. |
| Max Operating Frequency | 32 MHz (44 DMIPS); sufficient for real-time motor control and protocol stack execution. |
| Flash Memory | 96 KB code flash + 8 KB data flash; supports self-programming with boot swap and flash shield window. |
| RAM Size | 12 KB on-chip RAM; accommodates RTOS stacks, communication buffers, and firmware variables. |
| Supply Voltage Range | 1.6 V to 5.5 V; allows direct interface with 1.8 V, 3.3 V, and 5 V logic without level shifters. |
| Operating Temperature | -40°C to +85°C (D-grade); qualified for industrial environments including factory automation and building controls. |
| Low-Power Modes | HALT (0.60 μA), STOP, SNOOZE; enables battery-powered operation with RTC and LVD monitoring active. |
Pinout & Package
Package: 44-pin LQFP (10 × 10 mm, 0.8 mm pitch), lead-free, RoHS-compliant. Pin 1 marked by index notch; exposed pad not present (LQFP variant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121/X1 | Crystal input | Connects to 32.768 kHz tuning-fork crystal for precise RTC operation. |
| P122/X2/EXCLK | Crystal output / external clock input | Drives crystal resonator or accepts external clock source for system timing flexibility. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; initiates cold start or recovery from fault conditions. |
| VDD / VSS | Power supply / ground | Dual power pins ensure stable core/peripheral voltage distribution; decoupling required per datasheet layout guidelines. |
| P137/INTP0 | External interrupt input | Dedicated edge-triggered interrupt pin for wake-up or event capture without CPU polling overhead. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT mode | 0.60 μA current draw with RTC and LVD active-enables multi-year battery life in portable sensors. |
| Data flash BGO | Background operation allows full program execution while rewriting 8 KB data flash-no interruption to real-time tasks. |
| Event Link Controller (ELC) | Hardware routing of 19–26 peripheral events eliminates software ISR latency for time-critical signal chains. |
| Peripheral I/O redirection | Dynamic assignment of functions (e.g., UART, I²C) to multiple pins via PIOR0/1 registers-simplifies PCB layout reuse. |
| On-chip voltage detector (LVD) | 14-level programmable threshold with interrupt/reset options-prevents erratic behavior during brown-out conditions. |
Applications
| Smart Energy Metering | Industrial HMI Panel |
|---|---|
Use Scenario: Residential electricity/water meter with tamper detection, pulse counting, and RS-485 communication. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing LCD display, and handling secure firmware updates over Modbus. Use Value: 96 KB flash stores dual-application firmware; 12 KB RAM buffers sensor data; RTC with calendar enables billing cycle tracking. | Use Scenario: Local operator interface for PLC-controlled HVAC or conveyor systems with touch buttons and LED indicators. IC Role / Device Role / Timing Role: Dedicated UI processor handling keypad scan, LED/PWM dimming, and isolated CAN/UART gateway to main controller. Use Value: Integrated 10-bit ADC reads analog potentiometers; 8-bit DAC drives buzzer feedback; SNOOZE mode reduces standby power between user interactions. |
| Factory Automation Sensor Node | White Goods Control Board |
Use Scenario: Wireless temperature/humidity node with sub-GHz RF transceiver and local decision logic. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating ADC readings, applying compensation algorithms, and triggering RF transmission on threshold breach. Use Value: 66 μA/MHz active current extends battery life; ELC synchronizes ADC sampling with timer triggers-eliminates jitter in measurement windows. | Use Scenario: Washing machine main control board managing motor drive, water valves, temperature sensing, and user interface. IC Role / Device Role / Timing Role: System-on-chip replacing discrete logic and multiple peripherals-handles motor commutation timing, safety interlocks, and fault logging. Use Value: On-chip 12-bit interval timer generates precise PWM for BLDC motor control; data flash stores calibration coefficients and error history across 1M cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104FCDFP#30 | Same 44-pin LQFP package, 64 KB flash, 5.5 KB RAM, 4 KB data flash-lower memory capacity. | Suitable for cost-sensitive designs with reduced firmware footprint and fewer runtime variables. | Select when application fits within 64 KB code space and does not require RTC calendar or extended peripheral buffer space. |
| R5F104FGDFP#30 | Same 44-pin LQFP package, 128 KB flash, 16 KB RAM, 8 KB data flash-higher memory and RAM allocation. | Required for complex protocols (e.g., BLE host stack), larger GUI assets, or multi-sensor fusion with floating-point math. | Choose when future firmware expansion, OTA updates, or additional real-time tasks demand headroom beyond 96 KB flash. |
Compared with R5F104FCDFP#30 and R5F104FGDFP#30, the R5F104FADFP#30 provides balanced memory (96 KB/12 KB) and industrial temperature support ideal for production-ready metering and control systems where cost, reliability, and feature completeness must coexist without over-provisioning.
Availability
R5F104FADFP#30 is available at Aetrix Electronics and suitable for smart metering, industrial HMI, and factory sensor node applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R5F104FADFP#30 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 16-bit MCUs optimized for cost-sensitive industrial and consumer applications demanding robust analog integration, ultra-low standby current, and simplified development with scalable toolchains.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F104FADFP#30?
The R5F104FADFP#30 operates at up to 32 MHz, delivering 44 DMIPS of processing performance. Its RL78 CPU core achieves this with a 3-stage pipeline and supports variable instruction execution times-from 0.03125 µs at full speed to 30.5 µs in ultra-low-speed RTC mode-making it adaptable to both high-throughput and ultra-low-power use cases. This performance level is validated in the official Renesas datasheet R01DS0053EJ0370.
Does the R5F104FADFP#30 support hardware-based background data flash rewriting?
Yes, the R5F104FADFP#30 supports Background Operation (BGO) for data flash, enabling concurrent program execution from code flash while rewriting its 8 KB data flash memory. This capability ensures uninterrupted real-time operation during firmware parameter updates or logging, with guaranteed 1,000,000 rewrite cycles at VDD = 1.8–5.5 V. The feature is documented in Section 1.1 "Features" of the R01DS0053EJ0370 datasheet.
What are the supported serial communication interfaces on the R5F104FADFP#30?
The R5F104FADFP#30 integrates three families of serial interfaces: up to 4 UART/LIN channels (including LIN bus support), 4–10 I²C/simplified I²C channels, and 3–8 CSI (SPI-compatible) channels. All are configurable via peripheral I/O redirection registers (PIOR0/1), allowing flexible pin assignment. These interfaces are confirmed in Table 1-1 and Section 1.1 "Features" of the R01DS0053EJ0370 datasheet.
Is the R5F104FADFP#30 qualified for industrial temperature operation?
Yes, the R5F104FADFP#30 is rated for industrial temperature operation from -40°C to +85°C (D-grade), as indicated by the "D" in its part number suffix. This qualification covers full electrical performance, including flash programming, ADC accuracy, and oscillator stability across the range. The specification is defined in Section 1.2 "Ordering Information" and confirmed in the device marking and packaging details of R01DS0053EJ0370.
What low-power modes does the R5F104FADFP#30 support, and what is the lowest achievable current draw?
The R5F104FADFP#30 supports HALT, STOP, and SNOOZE low-power modes. In HALT mode-with only RTC and LVD active-it draws just 0.60 μA typical current. This ultra-low quiescent current enables multi-year battery operation in metering and sensor applications. The value is specified in the "True low-power platform" summary on page 1 of R01DS0053EJ0370 and verified in electrical characteristics tables.
R5F104FADFP#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-LQFP
- Series:
- RL78/G14
- Packaging:
- Tray
- Product Status:
- Discontinued at Digi-Key
- 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:
- 31
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 2.5K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 10x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104FADFP#30 FAQ
1.How can I place an order for R5F104FADFP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104FADFP#30 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 R5F104FADFP#30 reliable?
The price and inventory of R5F104FADFP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104FADFP#30 is usually 5 days.
3.What payment methods are accepted for R5F104FADFP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104FADFP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104FADFP#30?
R5F104FADFP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104FADFP#30 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 R5F104FADFP#30?
For technical support, including R5F104FADFP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104FADFP#30 requirements.
6.How does Aetrix verify that R5F104FADFP#30 is sourced from the original manufacturer or authorized distributors?
All R5F104FADFP#30 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 R5F104FADFP#30 meets industry standards.
7.What is the process for return or replacement of R5F104FADFP#30?
All R5F104FADFP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104FADFP#30, 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 R5F104FADFP#30 part is unused and in its original packaging.
Return procedure for R5F104FADFP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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