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Renesas R5F104FFAFP#50
- Part No.:
- R5F104FFAFP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F104FFAFP#50.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 44LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,993
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Product details
Overview
R5F104FFAFP#50 from Renesas Electronics is a 44-pin LQFP, 96 KB flash, 12 KB RAM RL78/G14 16-bit microcontroller with ultra-low-power operation (66 μA/MHz), integrated 10-bit ADC (16 channels), dual UART/LIN interfaces, and real-time clock - deployed in battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R5F104FFAFP#50 datasheet, R5F104FFAFP#50 pinout, R5F104FFAFP#50 application, or R5F104FFAFP#50 equivalent, this page delivers verified package mapping, validated peripheral configuration, confirmed low-power mode behavior, and direct alternative part comparisons for rapid design-in and BOM optimization.
Technical Context
The R5F104FFAFP#50 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 within a 1 MB address space. It integrates a 12-bit interval timer, calendar-capable RTC, and watchdog timer driven by a dedicated low-speed oscillator.
Peripheral integration includes 8-channel 16-bit Timer Array Unit (TAU), 4-channel I²C, 3-channel UART with LIN support, 3–8-channel CSI (SPI-compatible), and a Data Transfer Controller (DTC) with chain transfer capability - all linked via the Event Link Controller (ELC) for autonomous event-driven operation without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash / RAM | 96 KB on-chip code flash memory; 12 KB SRAM - sufficient for firmware with protocol stacks and sensor fusion logic |
| Power Consumption | 66 μA/MHz active; 0.60 μA in STOP mode with RTC + LVD - enables multi-year battery life in endpoint devices |
| Analog Peripherals | 10-bit ADC with 16 input channels and internal 1.45 V reference; two 8-bit DAC outputs (0–VDD range) |
| Timers & Clock | RTC with calendar (99-year), alarm, and clock correction; 12-bit interval timer; high-accuracy ±1.0% on-chip oscillator (1–64 MHz) |
| Serial Interfaces | 3 UART/LIN channels, 4 I²C channels, 3–8 CSI (SPI-compatible) channels - supports mixed wired communication topologies |
| Operating Range | 1.6 V to 5.5 V supply; -40°C to +85°C ambient (Industrial-grade 'D' variant) |
Pinout & Package
44-pin LQFP (10 × 10 mm, 0.8 mm pitch), RoHS-compliant, with exposed thermal pad (not electrically connected). Pin functions are configurable via Peripheral I/O Redirection Registers (PIOR0/1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit; timer input; debug clock input - shared function enables compact debug-enabled designs |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive; timer output; debug clock output - supports full-duplex comms with trace clocking |
| P10–P15 | CSI1/SCL11/SDA11/SO20/SI20/SCK20 | Dedicated serial interface group - allows concurrent SPI and I²C operation without resource conflict |
| P16 / P17 | INTP5/RxD0 & INTP4/TxD0 | Secondary UART pins with interrupt capability - enables isolated diagnostics or secondary bus bridging |
| P30 / P31 | RTC1HZ / SCK00 / TI03 / TO03 | Real-time clock output + SPI master clock + timer I/O - simplifies time-synchronized sensor sampling |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to POR and LVD - ensures deterministic startup under brownout |
| REGC | Regulator bypass capacitor terminal | Requires 0.47–1 µF capacitor to VSS - critical for stable internal voltage regulator performance |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE mode | Permits background data flash rewriting while CPU remains halted - reduces power during firmware updates |
| Data Flash BGO | Background operation allows program execution from flash during 4 KB data flash rewrite - enables seamless logging |
| ELC event linking | 19–26 peripheral events directly routed to functions (e.g., ADC trigger → DMA transfer) - eliminates CPU polling overhead |
| On-chip LVD | 14-level voltage detector with selectable interrupt/reset - provides precise brownout protection for 1.6–5.5 V operation |
| DTC auto-transfer | Supports block, repeat, and chain transfers triggered by interrupts - offloads burst data movement from CPU |
Applications
| Smart Utility Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Battery-powered gas/water meter with pulse counting, temperature compensation, and RF telemetry. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition, RTC-based reporting intervals, and UART-to-sub-GHz transceiver interface. Use Value: 0.60 μA STOP mode extends 10-year battery life; 16-channel ADC handles analog sensor inputs; LIN-capable UART supports legacy utility bus protocols. |
Use Scenario: DIN-rail mounted environmental monitor measuring humidity, pressure, and CO₂ via analog and digital sensors. IC Role / Device Role / Timing Role: Central data aggregator with I²C sensor interface, UART diagnostics port, and RTC-scheduled wake-up for periodic measurement. Use Value: Dual UARTs enable simultaneous local debug and remote Modbus RTU; 12 KB RAM accommodates sensor fusion algorithms and buffer history. |
| Home Appliance Control | Building Automation Panel |
Use Scenario: Washing machine main control board requiring motor timing, user interface, and safety monitoring. IC Role / Device Role / Timing Role: Real-time motor phase control via TAU PWM outputs; key interrupt handling; LVD-based fault detection. Use Value: 8-channel TAU provides independent PWM for BLDC commutation; N-ch open-drain I/O drives indicator LEDs directly; 1.6 V min supply supports wide-input SMPS designs. |
Use Scenario: HVAC zone controller interfacing with thermostats, dampers, and BACnet MS/TP fieldbus. IC Role / Device Role / Timing Role: Protocol gateway translating between I²C sensors, UART-based MS/TP, and on-board buzzer/audio feedback. Use Value: 4-channel I²C manages multiple local sensors; buzzer output controller drives audible alerts without external driver; 96 KB flash hosts dual protocol stacks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104FGAFP#50 | 128 KB flash, 16 KB RAM, same 44-pin LQFP package and peripheral set | Supports larger firmware images (e.g., OTA update handler + secure boot) | Select when future firmware expansion or cryptographic libraries require >96 KB code space |
| R5F104FEAFP#50 | 48 KB flash, 5.5 KB RAM, identical pinout and peripheral configuration | Lower memory footprint suits cost-sensitive, fixed-function controllers | Choose for production units where feature set is static and BOM cost reduction is prioritized |
Compared with R5F104FFAFP#50, R5F104FGAFP#50 offers headroom for feature growth without layout change, while R5F104FEAFP#50 reduces flash cost and power in memory-constrained deployments - both retain identical peripheral availability and timing characteristics.
Availability
R5F104FFAFP#50 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart metering endpoints, and home appliance control systems requiring stable component supply, long-term lifecycle assurance, and qualified industrial-temperature operation.
Supply support for R5F104FFAFP#50 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 industrial, automotive, and IoT markets.
The RL78/G14 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications - balancing performance, peripheral richness, and energy efficiency.
FAQ
What is the maximum operating frequency and corresponding current consumption of the R5F104FFAFP#50?
The R5F104FFAFP#50 operates up to 32 MHz with a typical active current of 66 μA per MHz, resulting in ~2.1 mA at full speed. Its high-accuracy on-chip oscillator (±1.0% over -20°C to +85°C) eliminates need for external crystal in many applications, reducing BOM count and PCB area. The R5F104FFAFP#50 maintains this specification across its full 1.6–5.5 V supply range.
Does the R5F104FFAFP#50 support in-system programming and secure firmware updates?
Yes, the R5F104FFAFP#50 supports self-programming of both code and data flash memory with boot swapping and flash shield window protection. It enables secure firmware updates via UART or other serial interfaces using Renesas' Flash Self-Programming Library, and includes block-erase prohibition to prevent unauthorized reprogramming. The R5F104FFAFP#50 also features on-chip debug functionality compliant with E1/E20 emulators.
How many UART/LIN interfaces does the R5F104FFAFP#50 provide, and are they hardware-independent?
The R5F104FFAFP#50 integrates three UART modules, each supporting LIN 2.2 protocol with automatic sync-break detection and checksum generation. These UARTs operate independently with separate clock sources and interrupt vectors, allowing concurrent use - for example, one for host communication, one for sensor telemetry, and one for LIN bus control. All three are fully accessible on the R5F104FFAFP#50's 44-pin LQFP package.
What ADC resolution, channel count, and reference options are available on the R5F104FFAFP#50?
The R5F104FFAFP#50 features a 10-bit successive-approximation ADC with 16 analog input channels, programmable sampling time, and selectable conversion triggers (software, timer, or peripheral event). It supports internal 1.45 V reference, AVDD, or external reference via AVREFP/AVREFM pins. The R5F104FFAFP#50 also integrates an on-chip temperature sensor calibrated across the industrial temperature range.
Is the R5F104FFAFP#50 pin-compatible with other RL78/G14 variants in the same package?
Yes, all RL78/G14 devices in the 44-pin LQFP package - including R5F104FAAFP#50 through R5F104FHAFP#50 - share identical pinouts and electrical characteristics. This allows drop-in replacement across memory variants (16–192 KB flash) without PCB redesign. The R5F104FFAFP#50 retains full functional compatibility with peripherals, timers, and serial interfaces across this family subset.
R5F104FFAFP#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-LQFP
- Series:
- RL78/G14
- Packaging:
- Tape & Reel (TR)
- 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:
- 31
- 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 10x8/10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104FFAFP#50 FAQ
1.How can I place an order for R5F104FFAFP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104FFAFP#50 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 R5F104FFAFP#50 reliable?
The price and inventory of R5F104FFAFP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104FFAFP#50 is usually 5 days.
3.What payment methods are accepted for R5F104FFAFP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104FFAFP#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104FFAFP#50?
R5F104FFAFP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104FFAFP#50 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 R5F104FFAFP#50?
For technical support, including R5F104FFAFP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104FFAFP#50 requirements.
6.How does Aetrix verify that R5F104FFAFP#50 is sourced from the original manufacturer or authorized distributors?
All R5F104FFAFP#50 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 R5F104FFAFP#50 meets industry standards.
7.What is the process for return or replacement of R5F104FFAFP#50?
All R5F104FFAFP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104FFAFP#50, 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 R5F104FFAFP#50 part is unused and in its original packaging.
Return procedure for R5F104FFAFP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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