Renesas R5F104MGAFA#X0
- Part No.:
- R5F104MGAFA#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F104MGAFA#X0.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 80LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F104MGAFA#X0 from Renesas is a 80-pin LQFP-0.65 mm pitch, industrial-grade (−40 to +85°C) RL78/G14 16-bit MCU with 96 KB flash, 12 KB RAM, 4 KB data flash, and integrated peripherals including 10-channel 10-bit ADC, dual UART/LIN, I²C, SPI, RTC, and ultra-low-power HALT/STOP/SNOOZE modes - deployed in smart metering and industrial HMI control systems.
For engineers reviewing the R5F104MGAFA#X0 datasheet, R5F104MGAFA#X0 pinout, R5F104MGAFA#X0 application, or R5F104MGAFA#X0 equivalent, key selection criteria include its 96 KB code flash with self-programming, 12 KB RAM allocation for real-time DTC/ELC-driven sensor processing, 4 KB background-operable data flash for parameter storage, and 80-pin LQFP package supporting full peripheral routing in space-constrained industrial PCBs.
Technical Context
The R5F104MGAFA#X0 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz RTC mode), and integrates Event Link Controller (ELC) for hardware-triggered peripheral chaining without CPU intervention.
It features a 10-bit A/D converter with up to 20 input channels, internal 1.45 V reference and temperature sensor, plus dual 8-bit D/A outputs with real-time update capability - all operating across 1.6–5.5 V supply range and qualified for industrial ambient temperatures (−40 to +85°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline and multiply/divide instructions |
| Max Clock | 32 MHz (44 DMIPS); on-chip oscillator accuracy ±1.0% over −20 to +85°C |
| Memory | 96 KB code flash (1 KB block size), 12 KB RAM, 4 KB data flash (1M rewrite cycles) |
| Power | 66 μA/MHz active current; 0.60 μA RTC+LVD standby; HALT/STOP/SNOOZE low-power modes |
| Analog | 10-bit ADC (20 ch, 1.45 V ref, temp sensor), dual 8-bit DAC (0–VDD output, real-time update) |
| Peripherals | 2× UART/LIN, 4× I²C, 3× CSI (SPI-compatible), 12× 16-bit timers, RTC with calendar/alarm |
| Package | 80-pin LQFP, 0.65 mm pitch, 14 × 14 mm footprint, industrial temperature grade (−40 to +85°C) |
Pinout & Package
80-pin LQFP package (PLQP0080JB-E code), 14 × 14 mm body, 0.65 mm pitch, exposed thermal pad not present (LQFP variant). Pin functions support full peripheral mapping including dual UART, 10-channel ADC, 2× DAC, ELC-linked timer triggers, and hardware debug (SWD/JTAG via TOOL0/TOOLRxD/TOOLTxD).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P01 | TxD1/RxD1, TO00/TI00 | Primary UART1 interface + 16-bit timer input/output for motor control timing |
| P10–P15 | SCK11/SDA11/SO20/SCL20 | Dual CSI/I²C interfaces for sensor hub communication and display bus control |
| P16–P17 | INTP5/TRDIOC0, TRDIOA0/TRDCLK | ELC-linked timer capture/compare outputs for synchronized PWM generation |
| P20–P27 | ANI0–ANI7, AVREFP/AVREFM | 8-channel analog front-end with differential reference for precision sensor signal conditioning |
| P30–P31 | INTP3/RTC1HZ, TI03/TO03 | Real-time clock interrupt output + dedicated timer for encoder pulse counting |
| P50–P51 | SI00/RxD0, SO00/TxD0 | UART0 debug port with TOOLRxD/TOOLTxD pins for in-system programming |
| P121–P122 | X1/X2 | Crystal oscillator inputs for precise RTC and system clock synchronization |
| RESET, REGC, VDD, VSS | Reset, regulator capacitor, power | Single-supply operation (1.6–5.5 V); REGC requires 0.47–1 μF decoupling to VSS |
Key Features
| Feature | Design Value |
|---|---|
| Self-programming flash | Boot swap and flash shield window enable secure firmware updates without external programmer |
| Background data flash | BGO allows concurrent program execution while rewriting 4 KB data flash - critical for logging and calibration |
| Event Link Controller | Hardware chaining of 19–26 peripheral events eliminates CPU polling overhead in sensor fusion applications |
| Ultra-low-power modes | 0.60 μA STOP mode with RTC + LVD active enables battery-powered operation >10 years in metering |
| Dual DAC with real-time output | Two independent 8-bit DACs update synchronously with timer triggers for closed-loop analog control |
Applications
| Smart Energy Metering | Industrial HMI Panel |
|---|---|
Use Scenario: Residential electricity meter with tariff switching, tamper detection, and RS-485 communication. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing EEPROM calibration data, and driving isolated UART for DLMS/COSEM protocol. Use Value: 4 KB data flash stores 10+ years of consumption logs with BGO; RTC calendar supports time-of-use billing; 10-bit ADC interfaces shunt-based current sensing. | Use Scenario: Local operator interface for PLC-controlled HVAC system with touch feedback and status LEDs. IC Role / Device Role / Timing Role: Peripheral coordinator handling button scan, LED PWM dimming, UART command parsing, and real-time clock display. Use Value: ELC links timer outputs to GPIO for flicker-free LED control; dual UART supports simultaneous debug and fieldbus communication; SNOOZE mode reduces idle power by 92%. |
| Factory Sensor Node | Home Appliance Control |
Use Scenario: Wireless vibration sensor node monitoring motor health in predictive maintenance systems. IC Role / Device Role / Timing Role: Signal acquisition unit sampling accelerometer data via 10-bit ADC, preprocessing with DTC, and formatting packets for BLE/Wi-Fi MCU. Use Value: 66 μA/MHz active current extends AA battery life to 2+ years; 20-channel ADC supports multi-axis sensor fusion; HALT mode wakes on external interrupt within 3.5 μs. | Use Scenario: Washing machine main board controlling motor drive, water valves, and user interface. IC Role / Device Role / Timing Role: System manager coordinating motor phase timing (via TO03), temperature monitoring (ADC), and buzzer feedback (PCLBUZ0/1). Use Value: Dual 8-bit DACs generate precise analog signals for motor current feedback; RTC alarm triggers delayed start; 96 KB flash accommodates multiple regional firmware variants. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104MGAFB#X0 | Same 96 KB flash/12 KB RAM, but 48-pin LFQFP (0.5 mm pitch) package | Fits compact designs where 80-pin routing is impractical; fewer I/O (64 vs. 72) and reduced peripheral count | Select when board space is constrained and full 80-pin peripheral access is unnecessary |
| R5F104LGAFA#X0 | 64-pin LQFP, 192 KB flash, 20 KB RAM, identical peripheral set and pinout compatibility in shared functions | Supports larger firmware (e.g., embedded web server), higher RAM buffers for communication stacks | Choose when future firmware expansion or increased real-time data buffering is required |
Compared with R5F104MGAFA#X0, the R5F104MGAFB#X0 trades I/O count and peripheral flexibility for smaller footprint, while R5F104LGAFA#X0 delivers scalable memory headroom without altering peripheral architecture - enabling seamless migration paths in industrial product families.
Availability
R5F104MGAFA#X0 is available at Aetrix Electronics and suitable for smart metering, industrial HMI panels, and factory sensor nodes requiring stable component supply, long-term lifecycle assurance, and industrial-temperature-rated performance.
Supply support for R5F104MGAFA#X0 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 control, metering, and appliance applications - balancing performance, integration, and energy efficiency.
FAQ
What is the maximum operating frequency and core performance of the R5F104MGAFA#X0?
The R5F104MGAFA#X0 operates at up to 32 MHz using its on-chip high-speed oscillator, delivering 44 DMIPS. Its RL78 CPU core features a 3-stage pipeline and supports instruction execution times ranging from 0.03125 μs (high-speed mode) to 30.5 μs (ultra-low-speed RTC mode), enabling dynamic power/performance scaling in the R5F104MGAFA#X0.
Does the R5F104MGAFA#X0 support in-system programming and secure firmware updates?
Yes, the R5F104MGAFA#X0 supports full in-system programming via its on-chip debug interface and includes boot swap functionality plus flash shield window protection. These features allow secure field firmware updates without external programmers and prevent unauthorized access to protected code sections in the R5F104MGAFA#X0.
How many analog-to-digital converter channels does the R5F104MGAFA#X0 provide, and what is their resolution?
The R5F104MGAFA#X0 integrates a 10-bit successive-approximation ADC with up to 20 input channels, including dedicated ANI0–ANI7 pins and additional multiplexed inputs. It supports internal 1.45 V reference voltage and on-die temperature sensing - all fully operational across the 1.6–5.5 V supply range of the R5F104MGAFA#X0.
What low-power modes are available on the R5F104MGAFA#X0, and what is the lowest current consumption?
The R5F104MGAFA#X0 offers HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it consumes just 0.60 μA - enabling decade-long battery operation in metering and sensor applications. Active-mode current is 66 μA/MHz, and wake-up from STOP occurs in under 3.5 μs, making the R5F104MGAFA#X0 ideal for intermittent-sensing systems.
Is the R5F104MGAFA#X0 pin-compatible with other RL78/G14 family members?
The R5F104MGAFA#X0 uses an 80-pin LQFP package (PLQP0080JB-E) with defined pin functions per the RL78/G14 datasheet. While peripheral pin assignments are consistent across same-package variants (e.g., R5F104LGAFA#X0), it is not pin-compatible with 48-pin or 64-pin RL78/G14 devices due to differing pin counts and I/O allocations - always verify pin mapping against the R5F104MGAFA#X0-specific schematic.
R5F104MGAFA#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RL78/G14
- Packaging:
- Tape & Reel (TR)
- 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:
- 64
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 17x8/10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104MGAFA#X0 FAQ
1.How can I place an order for R5F104MGAFA#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104MGAFA#X0 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 R5F104MGAFA#X0 reliable?
The price and inventory of R5F104MGAFA#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104MGAFA#X0 is usually 5 days.
3.What payment methods are accepted for R5F104MGAFA#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104MGAFA#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104MGAFA#X0?
R5F104MGAFA#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104MGAFA#X0 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 R5F104MGAFA#X0?
For technical support, including R5F104MGAFA#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104MGAFA#X0 requirements.
6.How does Aetrix verify that R5F104MGAFA#X0 is sourced from the original manufacturer or authorized distributors?
All R5F104MGAFA#X0 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 R5F104MGAFA#X0 meets industry standards.
7.What is the process for return or replacement of R5F104MGAFA#X0?
All R5F104MGAFA#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104MGAFA#X0, 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 R5F104MGAFA#X0 part is unused and in its original packaging.
Return procedure for R5F104MGAFA#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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