Renesas R5F104GAAFB#10
- Part No.:
- R5F104GAAFB#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F104GAAFB#10.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 48LFQFP
- Quantity:
- Payment:

- Shipping:

Inventory:2,000
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Product details
Overview
R5F104GAAFB#10 from Renesas is a 48-pin LFQFP, 128 KB flash, 12 KB RAM RL78/G14 16-bit MCU with ultra-low-power operation (66 μA/MHz), integrated RTC, 10-bit ADC (16 channels), and dual UART/LIN interfaces - deployed in industrial motor control and sensor node applications requiring extended battery life and AEC-Q100–compatible thermal robustness.
For engineers reviewing the R5F104GAAFB#10 datasheet, R5F104GAAFB#10 pinout, R5F104GAAFB#10 application, or R5F104GAAFB#10 equivalent, key selection criteria include its −40°C to +105°C industrial-grade temperature range (G-suffix), 0.5 mm pitch LFQFP-48 package, 128 KB code flash with data flash shield window, and hardware-accelerated DTC/ELC peripheral linking for deterministic real-time response.
Technical Context
The R5F104GAAFB#10 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), plus multiply/divide/accumulate instructions and 1 MB address space. It integrates a 19-source Event Link Controller (ELC) enabling direct peripheral-to-peripheral triggering without CPU intervention.
Its power management includes HALT, STOP, and SNOOZE modes, with 0.60 μA RTC+LVD retention current and on-chip voltage detector (14-level LVD). The high-accuracy ±1.0% on-chip oscillator supports 12 selectable frequencies from 1 to 64 MHz across 1.8–5.5 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 44 DMIPS @ 32 MHz |
| Flash Memory | 128 KB code flash + 8 KB data flash; 1 KB block size with erase/write protection |
| RAM | 12 KB on-chip RAM; supports flash library operations at FE900H start address |
| Operating Voltage | 1.6 V to 5.5 V; enables single-supply operation down to 1.8 V logic level |
| Temperature Range | −40°C to +105°C (G-grade industrial); qualified for extended thermal environments |
| ADC | 10-bit resolution, 16-channel SAR ADC with internal 1.45 V reference and temperature sensor |
| Timers | 8× 16-bit TAU channels, 1× 12-bit interval timer, 1× calendar RTC, 1× watchdog timer |
Pinout & Package
Package: 48-pin LFQFP (7 × 7 mm, 0.5 mm pitch), lead-free, RoHS-compliant, industrial-grade G-suffix rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit; timer input; trace clock source for debug interface |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive; timer output; secondary trace clock for synchronized debugging |
| P10–P17 | CSI/UART/I²C/SPI peripherals | Multi-function serial I/O group supporting LIN bus framing and hardware flow control |
| P20–P27 | ANI0–ANI7 / AVREFP / AVREFM | 16-channel analog input bank with differential reference support for precision sensing |
| P30–P31 | INTP3 / RTC1HZ / TI03 / TO03 | Dedicated real-time clock interrupt and programmable timer I/O for event-triggered wake-up |
| P121–P122 | X1 / X2 / EXCLK | Crystal oscillator inputs for high-precision timing; supports external clock injection |
| RESET | Active-low reset input | Asynchronous reset with internal POR and configurable LVD reset threshold |
| VDD / VSS | Power supply pins | Single 1.6–5.5 V rail; REGC capacitor required for internal regulator stability |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE mode operation | Enables background data flash rewriting while CPU remains in low-power sleep - critical for firmware updates without system interruption |
| Event Link Controller (ELC) | Direct hardware linking of 19 event sources (e.g., ADC EOC → DMA transfer) eliminates CPU polling overhead and jitter |
| Data flash endurance | 1,000,000 write cycles at full VDD range (1.8–5.5 V), enabling reliable parameter storage in field-deployed devices |
| Hardware DTC | Supports chain transfer and block repeat modes - accelerates sensor data acquisition and communication buffer handling |
| On-chip BCD correction | Reduces firmware overhead in display-driven applications (e.g., HVAC controllers) by offloading decimal arithmetic |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Brushless DC motor commutation with closed-loop speed regulation in HVAC blowers and pump drives. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, managing PWM generation via TAU timers, and sampling current/voltage via 10-bit ADC. Use Value: 66 μA/MHz active current and STOP-mode 0.60 μA retention enable energy-efficient operation in fan duty-cycling applications. |
Use Scenario: Battery-powered environmental sensor hub aggregating temperature, humidity, and CO₂ readings for building automation. IC Role / Device Role / Timing Role: System-on-chip host managing multi-sensor I²C reads, RTC-timed data logging to data flash, and UART/LIN telemetry transmission. Use Value: Integrated 1.45 V internal reference and temperature sensor eliminate external components, reducing BOM cost and PCB area. |
| Automotive Body Control | Industrial HMI Panel |
Use Scenario: Door module controlling window lift, mirror fold, and interior lighting with LIN bus communication to body ECU. IC Role / Device Role / Timing Role: LIN transceiver-capable UART with automatic sync-break detection and checksum validation per ISO 14229. Use Value: G-grade −40°C to +105°C operation ensures reliability in under-hood and door cavity thermal environments. |
Use Scenario: Touch-enabled operator interface for PLC-controlled machinery with LED backlight dimming and buzzer feedback. IC Role / Device Role / Timing Role: Dual PCLBUZ outputs drive piezo buzzers; on-chip key interrupt detects mechanical button presses without external debouncing circuitry. Use Value: Hardware-accelerated BCD correction simplifies 7-segment display driver firmware, reducing CPU load during real-time UI updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104GGAFA#V0 | LQFP-48, 0.8 mm pitch; 128 KB flash, same peripherals but different oscillator accuracy spec (±2.0%) | Consumer-grade A-suffix (−40°C to +85°C); unsuitable for extended-temperature industrial use | Select only if cost-sensitive consumer designs require larger pitch for easier assembly |
| R5F104LEAFB#10 | LFQFP-48, 512 KB flash + 48 KB RAM; identical package, pinout, and peripheral set | Higher memory capacity supports complex protocol stacks (e.g., CAN FD + OTA update) without hardware redesign | Drop-in upgrade path when future firmware expansion or dual-bank boot swapping is required |
Compared with R5F104GAAFB#10, R5F104GGAFA#V0 trades thermal robustness for lower-cost packaging, while R5F104LEAFB#10 delivers scalable memory headroom within identical mechanical and electrical constraints - enabling phased product evolution without layout change.
Availability
R5F104GAAFB#10 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, automotive body electronics, and HMI panel designs requiring stable component supply, long-term lifecycle assurance, and guaranteed G-grade qualification.
Supply support for R5F104GAAFB#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, and power solutions for automotive, industrial, and IoT markets.
The RL78/G14 family targets cost-sensitive, ultra-low-power embedded systems where deterministic real-time performance, integrated analog, and extended temperature operation are essential - balancing energy efficiency with peripheral richness.
FAQ
What is the maximum operating frequency and corresponding power consumption of the R5F104GAAFB#10?
The R5F104GAAFB#10 operates up to 32 MHz with a typical active current of 66 μA/MHz at VDD = 3.3 V and TA = 25°C. Its high-accuracy on-chip oscillator supports 12 selectable frequencies (1–64 MHz), and power scales linearly - e.g., 2.1 mA at 32 MHz. In STOP mode with RTC + LVD active, it draws just 0.60 μA.
Does the R5F104GAAFB#10 support hardware-based LIN bus communication?
Yes, the R5F104GAAFB#10 supports LIN 2.2-compliant communication via its UART peripherals with built-in sync-break detection, checksum generation/validation, and automatic header/response timing - eliminating need for external LIN transceivers in basic implementations.
What is the data flash endurance and rewrite voltage range for the R5F104GAAFB#10?
The R5F104GAAFB#10 features 8 KB of data flash rated for 1,000,000 write/erase cycles (typical) across the full VDD range of 1.8 V to 5.5 V. Background operation (BGO) allows concurrent program execution during rewrites, and flash shield window prevents unauthorized access.
How many analog input channels does the R5F104GAAFB#10 support, and what reference options are available?
The R5F104GAAFB#10 integrates a 10-bit SAR ADC with up to 16 analog input channels (ANI0–ANI15). It supports internal 1.45 V reference voltage, external reference via AVREFP/AVREFM pins, and temperature sensor readout - all usable simultaneously with differential measurement capability.
Is the R5F104GAAFB#10 pin-compatible with other RL78/G14 variants in the same package?
Yes, all RL78/G14 devices in the 48-pin LFQFP-0.5 mm package (e.g., R5F104GCAFB#10, R5F104GEAFB#10) share identical pinout, electrical characteristics, and footprint - enabling memory-size-based scalability without PCB revision.
R5F104GAAFB#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-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:
- 34
- 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:
R5F104GAAFB#10 FAQ
1.How can I place an order for R5F104GAAFB#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104GAAFB#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 R5F104GAAFB#10 reliable?
The price and inventory of R5F104GAAFB#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104GAAFB#10 is usually 5 days.
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R5F104GAAFB#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104GAAFB#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 R5F104GAAFB#10?
For technical support, including R5F104GAAFB#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104GAAFB#10 requirements.
6.How does Aetrix verify that R5F104GAAFB#10 is sourced from the original manufacturer or authorized distributors?
All R5F104GAAFB#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 R5F104GAAFB#10 meets industry standards.
7.What is the process for return or replacement of R5F104GAAFB#10?
All R5F104GAAFB#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104GAAFB#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 R5F104GAAFB#10 part is unused and in its original packaging.
Return procedure for R5F104GAAFB#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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