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Renesas R5F104FAAFP#V0
- Part No.:
- R5F104FAAFP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F104FAAFP#V0.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 44LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,181
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Product details
Overview
R5F104FAAFP#V0 from Renesas is a 44-pin LQFP, 96 KB flash, 12 KB RAM RL78/G14 16-bit microcontroller featuring 66 μA/MHz active current, 0.60 μA RTC+LVD low-power mode, and 32 MHz max CPU speed (44 DMIPS), deployed in industrial sensor nodes and battery-powered control modules.
For engineers reviewing the R5F104FAAFP#V0 datasheet, R5F104FAAFP#V0 pinout, R5F104FAAFP#V0 application, or R5F104FAAFP#V0 equivalent, key selection criteria include its 44-pin 0.8 mm pitch LQFP package, 96 KB code flash with data flash shield window, integrated 10-bit 20-channel ADC, and support for LIN-bus UART and hardware DTC/ELC peripherals.
Technical Context
The R5F104FAAFP#V0 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 register banks.
It integrates dual-clock domains: high-accuracy ±1.0% on-chip oscillator (selectable 1–64 MHz) and independent subsystem clock for RTC/LVD operation, enabling simultaneous real-time calendar functions and ultra-low-power monitoring without external crystals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz (44 DMIPS), with selectable high-speed on-chip oscillator (±1.0% accuracy) |
| Memory | 96 KB code flash (1 KB block size), 4 KB data flash, 12 KB RAM |
| Power Consumption | 66 μA/MHz active current; 0.60 μA in STOP mode with RTC + LVD enabled |
| Analog Peripherals | 10-bit 20-channel ADC with internal 1.45 V reference and temperature sensor |
| Serial Interfaces | 3 UART/LIN channels, 4–10 I²C channels, 3–8 CSI (SPI-compatible) channels |
| Timers & RTC | 8–12 × 16-bit timers (TAU/TIMER-RJ/RD/RG), 1 × 12-bit interval timer, full-calendar RTC with alarm/correction |
Pinout & Package
Package: 44-pin LQFP (10 × 10 mm, 0.8 mm pitch), RoHS-compliant, industrial-grade (−40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit output; input capture timer channel 0; debug clock A |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive input; timer output channel 0; debug clock B |
| P10–P17 | SPI/I²C/UART peripheral pins (SCK11–TRDIOD1) | Configurable multi-function serial interface bank supporting CSI, I²C, and UART with pin redirection |
| P20–P27 | ANI0–ANI7 / AVREFP / AVREFM / ANO0 / ANO1 | 8-channel analog input group with differential reference support and two analog outputs |
| P30–P31 | INTP3 / RTC1HZ / SCK00 / TI03 / TO03 | Dedicated RTC interrupt and 1 Hz output; SPI clock; timer input/output for motor control timing |
| P121–P122 | X1 / X2 / EXCLK | Crystal oscillator inputs (32.768 kHz) and external clock input for precise RTC timing |
| RESET | Active-low reset input | Asynchronous reset with built-in POR and programmable LVD (14 voltage levels) |
| VDD / VSS | Power supply / ground | Single 1.6–5.5 V supply; REGC capacitor required for internal regulator stability |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP/SNOOZE modes | Enables sub-μA system sleep with wake-on-peripheral-event, critical for battery life in remote sensors |
| Data flash background operation (BGO) | Allows full CPU execution from program memory while rewriting 4 KB data flash-no code stalls during logging |
| Event Link Controller (ELC) | Direct hardware linking of 19–26 event sources to peripherals eliminates CPU polling overhead in real-time control |
| On-chip debug with boot swap | Enables safe firmware updates via dual-bank flash swapping and non-intrusive debugging without external JTAG |
| Peripheral I/O redirection (PIOR) | Runtime remapping of up to 8 peripheral functions to alternate pins-reduces PCB redesign for layout optimization |
Applications
| Industrial Sensor Node | Smart Thermostat Controller |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity/pressure sensing node with wireless telemetry. IC Role / Device Role / Timing Role: Main system controller executing sensor acquisition, calibration, LIN/UART comms, and RTC-scheduled wake-up. Use Value: 0.60 μA STOP mode extends 10-year battery life; 10-bit ADC with internal reference eliminates external precision references. |
Use Scenario: Residential HVAC controller managing zone valves, fan speed, and user interface. IC Role / Device Role / Timing Role: Real-time actuator coordinator with PWM fan control, keypad scan, and display refresh. Use Value: ELC-triggered timer arrays enable jitter-free 20 kHz motor PWM; 44-pin LQFP fits compact front-panel PCBs. |
| Energy Metering Subsystem | Appliance Motor Control Module |
|
Use Scenario: Secondary MCU in smart meter handling tamper detection, LED pulse output, and secure data logging. IC Role / Device Role / Timing Role: Secure data logger using flash shield window and BGO for concurrent metering and storage. Use Value: 1,000,000-cycle data flash endurance supports 20+ years of hourly consumption logging; LVD interrupt prevents corruption during brownout. |
Use Scenario: BLDC motor driver board requiring commutation timing, current sensing, and fault protection. IC Role / Device Role / Timing Role: Timing-critical commutation engine synchronizing 6× PWM outputs with ADC sampling. Use Value: TAU timer units with dead-time insertion and synchronous ADC trigger ensure <100 ns timing alignment across phases. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104GAAFP#V0 | 128 KB flash, 16 KB RAM, same 44-pin LQFP package and peripheral set | Supports larger firmware (e.g., OTA update stack + encryption) without layout change | Select when future firmware growth exceeds 96 KB or additional RAM buffers needed for communication stacks |
| R5F104FEAFP#V0 | 64 KB flash, 5.5 KB RAM, identical package and core-but reduced memory and no RTC calendar function | Limited to simpler timing tasks (e.g., basic interval timer only); no date/time stamping capability | Choose for cost-sensitive, non-calendar applications where RTC alarm/correction is unnecessary |
Compared with R5F104GAAFP#V0, the R5F104FAAFP#V0 trades flash/RAM headroom for lower unit cost and smaller memory footprint; versus R5F104FEAFP#V0, it adds full RTC calendar functionality and 3× more RAM-enabling robust time-stamped data logging in constrained systems.
Availability
R5F104FAAFP#V0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, and energy metering subsystems requiring stable component supply across multi-year production cycles.
Supply support for R5F104FAAFP#V0 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 true low-power 16-bit MCUs optimized for cost-sensitive industrial and consumer devices requiring extended battery life, integrated analog, and robust real-time control.
FAQ
What is the maximum operating frequency and power efficiency of the R5F104FAAFP#V0?
The R5F104FAAFP#V0 operates at up to 32 MHz (44 DMIPS) with an ultra-low active current of 66 μA/MHz. In STOP mode with RTC and LVD active, it draws just 0.60 μA-enabling decade-long battery operation in sensor applications. Its high-accuracy ±1.0% on-chip oscillator eliminates need for external crystal in many use cases, reducing BOM cost and board space.
Does the R5F104FAAFP#V0 support hardware-based real-time clock with calendar functionality?
Yes, the R5F104FAAFP#V0 includes a full-featured real-time clock (RTC) with calendar support for 99 years, alarm interrupt, and clock correction-operating independently in STOP mode using the 32.768 kHz crystal (X1/X2 pins). This enables precise time-stamped data logging and scheduled wake-up without CPU intervention, a key advantage over MCUs with basic interval timers only.
How does the R5F104FAAFP#V0 handle firmware updates in the field?
The R5F104FAAFP#V0 supports safe in-system programming via its boot swap function and flash shield window. The 96 KB code flash allows dual-bank operation, while the 4 KB data flash-with 1,000,000 write cycles and background operation (BGO)-enables concurrent logging and update preparation. These features eliminate risk of bricking during OTA updates and are fully managed by Renesas' Flash Self-Programming Library.
What serial communication interfaces are available on the R5F104FAAFP#V0?
The R5F104FAAFP#V0 provides three UART channels (one with LIN-bus support), four to ten I²C channels, and three to eight CSI (SPI-compatible) channels-all configurable via peripheral I/O redirection registers. This flexibility supports mixed-protocol designs such as UART-to-LIN gateway, I²C sensor hub, and SPI display interface-all on a single 44-pin LQFP device without external level shifters.
Is the R5F104FAAFP#V0 pin-compatible with other RL78/G14 variants in the same package?
Yes, all RL78/G14 44-pin LQFP variants-including R5F104FAAFP#V0, R5F104GAAFP#V0, and R5F104FEAFP#V0-share identical pinouts and electrical characteristics. Memory and peripheral differences (e.g., RTC presence, flash size) do not affect pin mapping or signal routing, enabling drop-in upgrades or downgrades during design iteration or cost optimization.
R5F104FAAFP#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-LQFP
- Series:
- RL78/G14
- Packaging:
- Tray
- 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:
- 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#V0 FAQ
1.How can I place an order for R5F104FAAFP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104FAAFP#V0 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#V0 reliable?
The price and inventory of R5F104FAAFP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104FAAFP#V0 is usually 5 days.
3.What payment methods are accepted for R5F104FAAFP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104FAAFP#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104FAAFP#V0?
R5F104FAAFP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104FAAFP#V0 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#V0?
For technical support, including R5F104FAAFP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104FAAFP#V0 requirements.
6.How does Aetrix verify that R5F104FAAFP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F104FAAFP#V0 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#V0 meets industry standards.
7.What is the process for return or replacement of R5F104FAAFP#V0?
All R5F104FAAFP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104FAAFP#V0, 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#V0 part is unused and in its original packaging.
Return procedure for R5F104FAAFP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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