Renesas R5F104FAAFP#30
- Part No.:
- R5F104FAAFP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F104FAAFP#30.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 44LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F104FAAFP#30 from Renesas is a 44-pin LQFP, 96 KB flash, 12 KB RAM RL78/G14 16-bit MCU with ultra-low power consumption (66 μA/MHz), 32 MHz max CPU speed, and integrated 10-bit ADC (20-channel), RTC, and multiple serial interfaces including UART, I²C, and CSI. It targets battery-powered industrial sensors and smart metering endpoints requiring long runtime and mixed-signal control.
For engineers reviewing the R5F104FAAFP#30 datasheet, R5F104FAAFP#30 pinout, R5F104FAAFP#30 application, or R5F104FAAFP#30 equivalent, key selection criteria include its 44-pin LQFP-0.8 mm pitch package, -40°C to +85°C industrial temperature grade (D suffix implied by #30 packaging code), 96 KB code flash with data flash shield, and support for background data flash rewriting during program execution.
Technical Context
The R5F104FAAFP#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 integrates a Data Transfer Controller (DTC) for autonomous memory transfers triggered by 19–26 event sources via the Event Link Controller (ELC).
Its peripheral set includes Timer Array Unit (TAU) with up to 8 channels, 12-bit interval timer, real-time clock with calendar and alarm, watchdog timer, and dual 8-bit D/A converters. The A/D converter operates across full VDD range (1.6–5.5 V) with internal 1.45 V reference and on-chip temperature sensor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and multiply/divide instructions |
| Max Clock Speed | 32 MHz - delivers 44 DMIPS performance for real-time control tasks |
| Flash Memory | 96 KB code flash with 1 KB block size and flash shield window for secure firmware updates |
| Data Flash | 8 KB with background operation (BGO) enabling concurrent code execution and data logging |
| RAM | 12 KB on-chip RAM - sufficient for RTOS stacks, communication buffers, and sensor fusion algorithms |
| A/D Converter | 10-bit resolution, 20 input channels, 1.45 V internal reference - supports precision analog sensing without external references |
| Supply Voltage | 1.6 V to 5.5 V - enables direct interface with 1.8 V, 3.3 V, and 5 V peripherals and batteries |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.60 μA), SNOOZE - extends battery life in intermittent wake-up applications |
Pinout & Package
Package: 44-pin LQFP (10 × 10 mm, 0.8 mm pitch), RoHS-compliant, industrial-grade plastic body with exposed thermal pad not present (LQFP variant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit; timer input; debug clock input - enables asynchronous comms and timing-critical edge detection |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive; timer output; debug clock output - supports full-duplex UART and synchronized peripheral triggering |
| P10–P15 | CSI/I²C/UART multi-function pins | Configurable serial interfaces - allows flexible peripheral mapping without PCB redesign |
| P16–P17 | INTP5/INTP4, TO01/TO02, TRDIOC0/TRDIOA0 | Dual timer outputs with interrupt capability - drives PWM loads and synchronizes external logic |
| P20–P27 | ANI0–ANI7, AVREFP/AVREFM | 8-channel analog input bank with dedicated reference pins - enables ratiometric measurements and noise-rejected sensing |
| P30–P31 | INTP3/INTP4, RTC1HZ, SCK00/SCL00, TI03/TO03 | Real-time clock output and hardware timer I/O - provides precise timekeeping and motor control signals |
| P60–P61 | SCLA0 / SDAA0 | Dedicated I²C bus pins - ensures reliable communication with EEPROMs, sensors, and PMICs |
| RESET | Active-low reset input | Asynchronous hardware reset with internal pull-up - guarantees deterministic startup after brownout or ESD events |
| VDD / VSS | Power supply and ground | Single 1.6–5.5 V supply simplifies power design; separate analog/digital ground not required |
| REGC | Regulator capacitor terminal | Requires 0.47–1 µF capacitor to VSS - stabilizes internal voltage regulator for low-noise analog operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT mode | 66 μA/MHz active current enables >1-year battery life in sensor nodes with 10-second wake intervals |
| Background data flash rewrite (BGO) | Allows firmware updates or parameter storage while executing application code - no system interruption required |
| Event Link Controller (ELC) | Links 19–26 peripheral events directly to timers or DTC - eliminates CPU polling and reduces latency to <100 ns |
| On-chip temperature sensor | Calibrated sensor with ±2°C accuracy over -40°C to +85°C - enables thermal compensation without external ICs |
| Peripheral I/O redirection registers | PIOR0/PIOR1 allow dynamic remapping of UART, CSI, and timer pins - increases layout flexibility and reuse |
| Real-time clock with calendar | 99-year calendar, alarm, and clock correction - supports time-stamped logging and scheduled wake-ups |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Electricity/water/gas meter with pulse counting, tamper detection, and wireless reporting every 15 minutes. IC Role / Device Role / Timing Role: Main controller managing metrology ADC sampling, RTC-based reporting schedule, and UART-to-PLC or SPI-to-LoRaWAN interface. Use Value: 96 KB flash stores encryption keys and firmware; 8 KB data flash logs consumption history; low-power modes extend battery to 10+ years. | Use Scenario: Wireless vibration/temperature/humidity sensor in factory predictive maintenance system. IC Role / Device Role / Timing Role: Signal acquisition hub with 10-bit ADC oversampling, RTC-triggered wake-up, and UART-to-BLE module interface. Use Value: On-chip temperature sensor calibrates ADC drift; BGO enables continuous logging to data flash while transmitting; 1.6 V min supply supports coin-cell operation. |
| Home Appliance Control | Building Automation Panel |
Use Scenario: Washing machine main board controlling motor drivers, water valves, and user interface. IC Role / Device Role / Timing Role: Real-time motor commutation via TAU PWM outputs, front-panel LED/buzzer control, and LIN bus communication to display. Use Value: Dual 8-bit DACs drive analog gauges; 20-channel ADC monitors thermistors and current shunts; SNOOZE mode reduces standby power below 10 μA. | Use Scenario: HVAC zone controller with temperature setpoint adjustment, damper actuation, and Modbus RTU communication. IC Role / Device Role / Timing Role: Fieldbus master handling RS-485 Modbus framing, analog sensor conditioning, and relay timing via TAU channels. Use Value: 44-pin LQFP fits compact PCBs; 1.6–5.5 V operation interfaces directly with 24 V DC systems via LDO; ELC links temperature alarms to immediate relay shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104FGAFP#30 | 128 KB flash, 16 KB RAM, same 44-pin LQFP package and peripheral set | Supports larger firmware images (e.g., OTA update stack + crypto libraries) | Select when future firmware growth or enhanced security features require >96 KB code space |
| R5F104FEAFP#30 | 64 KB flash, 5.5 KB RAM, identical package and pinout | Limited memory for basic control-only functions without data logging or protocol stacks | Choose for cost-sensitive, fixed-function designs where 96 KB is oversized |
Compared with R5F104FAAFP#30, R5F104FGAFP#30 offers headroom for feature expansion without layout change, while R5F104FEAFP#30 reduces BOM cost where memory constraints are tight - both share identical timing, power, and peripheral behavior.
Availability
R5F104FAAFP#30 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, and home appliance control requiring stable component supply, long-term industrial temperature support, and verified low-power operation.
Supply support for R5F104FAAFP#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, battery-operated, and energy-efficient embedded systems requiring rich analog integration and robust real-time control.
FAQ
What is the operating temperature range for the R5F104FAAFP#30?
The R5F104FAAFP#30 is rated for industrial operation from -40°C to +85°C. This is confirmed by its packaging code #30 (LFQFP/LQFP tray), which aligns with Renesas' D-grade industrial specification per the RL78/G14 ordering information table. The device does not support the extended +105°C G-grade option.
Does the R5F104FAAFP#30 include an integrated temperature sensor?
Yes, the R5F104FAAFP#30 includes an on-chip temperature sensor usable via the 10-bit A/D converter. Its output is calibrated and specified across the full -40°C to +85°C range with ±2°C typical accuracy, eliminating need for external thermal monitoring components in many applications.
How much data flash memory does the R5F104FAAFP#30 provide?
The R5F104FAAFP#30 provides 8 KB of data flash memory. This is consistent across all RL78/G14 devices with ≥96 KB code flash, as documented in the ROM/RAM capacities table. It supports background operation (BGO) and 1,000,000 write cycles at VDD = 1.8–5.5 V.
What serial communication interfaces are supported by the R5F104FAAFP#30?
The R5F104FAAFP#30 supports up to 4 UART channels (including LIN-bus compatible), 4–10 I²C/simplified I²C channels, and 3–8 CSI (SPI-compatible) channels. Pin assignment is configurable via PIOR0/PIOR1 registers, allowing flexible routing of these interfaces to available GPIOs.
Is the R5F104FAAFP#30 pin-compatible with other RL78/G14 44-pin variants?
Yes, the R5F104FAAFP#30 shares identical 44-pin LQFP (10 × 10 mm, 0.8 mm pitch) mechanical dimensions and pinout with all other RL78/G14 44-pin LQFP variants (e.g., R5F104FGAFP#30, R5F104FEAFP#30), enabling drop-in replacement within the same memory density family.
R5F104FAAFP#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-LQFP
- Series:
- RL78/G14
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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:
R5F104FAAFP#30 FAQ
1.How can I place an order for R5F104FAAFP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104FAAFP#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 R5F104FAAFP#30 reliable?
The price and inventory of R5F104FAAFP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104FAAFP#30 is usually 5 days.
3.What payment methods are accepted for R5F104FAAFP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104FAAFP#30 transactions.
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4.How is shipping managed for R5F104FAAFP#30?
R5F104FAAFP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104FAAFP#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 R5F104FAAFP#30?
For technical support, including R5F104FAAFP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104FAAFP#30 requirements.
6.How does Aetrix verify that R5F104FAAFP#30 is sourced from the original manufacturer or authorized distributors?
All R5F104FAAFP#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 R5F104FAAFP#30 meets industry standards.
7.What is the process for return or replacement of R5F104FAAFP#30?
All R5F104FAAFP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104FAAFP#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 R5F104FAAFP#30 part is unused and in its original packaging.
Return procedure for R5F104FAAFP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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