Renesas R5F100MGAFA#X0
- Part No.:
- R5F100MGAFA#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F100MGAFA#X0.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 80LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:1,369
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Product details
Overview
R5F100MGAFA#X0 from Renesas is a 80-pin LQFP-0.65mm, 128 KB flash, 8 KB data flash, 12 KB RAM RL78/G13 16-bit microcontroller operating from 1.6 V to 5.5 V, delivering 41 DMIPS at 32 MHz with ultra-low-power modes (66 μA/MHz active, 0.57 μA RTC+LVD), used in battery-powered industrial sensor nodes and smart metering interfaces.
For engineers reviewing the R5F100MGAFA#X0 datasheet, R5F100MGAFA#X0 pinout, R5F100MGAFA#X0 application, or R5F100MGAFA#X0 equivalent, key selection criteria include its integrated 10-bit 26-channel ADC, real-time clock with calendar/alarm, dual UART/LIN support, and hardware DMA for deterministic sensor data acquisition in resource-constrained embedded systems.
Technical Context
The R5F100MGAFA#X0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz ultra-low-speed mode). It integrates on-chip power-on-reset, 14-level voltage detector, and STOP/HALT/SNOOZE low-power states.
It features a 16-bit timer array (16 channels), 12-bit interval timer, watchdog timer with dedicated low-speed oscillator, and background operation-capable data flash (1M rewrite cycles, 1.8–5.5 V programming). Serial interfaces include up to 4 UART/LIN, 10 I²C, and 8 CSI channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Performance | 41 DMIPS at 32 MHz - enables real-time control loops and protocol stack execution |
| Memory | 128 KB code flash (1 KB blocks), 8 KB data flash (BGO supported), 12 KB RAM |
| Power Efficiency | 66 μA/MHz active current; 0.57 μA in RTC+LVD-only mode - extends battery life in always-on sensing |
| Analog Peripherals | 10-bit 26-channel ADC with internal 1.45 V reference and temperature sensor |
| Timers & RTC | 16 × 16-bit timers, 1 × 12-bit interval timer, 1 × calendar RTC (99-year range, alarm, correction) |
| Serial Interfaces | 4 × UART/LIN, 10 × I²C/Simplified I²C, 8 × CSI (SPI-compatible) - supports multi-sensor bus topologies |
Pinout & Package
Package: 80-pin LQFP (14 × 14 mm, 0.65-mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O rail decoupling; supports 1.6–5.5 V operation |
| P00–P07, P10–P17, etc. | General-purpose I/O ports | Up to 64 programmable I/O pins with N-ch open-drain, TTL input, pull-up options; supports 1.8/2.5/3 V interface |
| P10/P11 | SCK00/SCL00, SI00/RxD0 | Dedicated UART0 (LIN-capable) and CSI0/I²C0 pins - enable simultaneous serial sensor and actuator communication |
| P20–P27 | ANI0–ANI7 | Analog input channels with shared AVREFP/AVREFM - allow ratiometric sensor measurements without external references |
| RTC_IN, RTC_OUT | Real-time clock crystal interface | Connects to 32.768 kHz tuning-fork crystal - provides autonomous timekeeping during STOP mode |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.57 μA RTC+LVD mode enables decade-scale coin-cell operation in maintenance-free sensors |
| Data flash BGO | Background operation allows concurrent program execution and data logging - critical for firmware-over-the-air updates |
| Hardware DMA controller | 4-channel DMA with 2-clock transfers between SFR and RAM - offloads CPU during ADC burst sampling or UART streaming |
| On-chip debug & self-programming | Full on-chip debug with boot swap and flash shield window - enables secure field firmware upgrades without external tools |
| Multi-voltage I/O | Interface compatibility with 1.8 V, 2.5 V, and 3 V peripherals - simplifies mixed-voltage system design |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Bidirectional energy measurement with tamper detection, tariff switching, and wireless reporting. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing LCD/LED displays, and handling RS-485/PLC communication stacks. Use Value: Integrated 10-bit ADC with temperature sensor enables on-chip calibration drift compensation; RTC with alarm triggers scheduled meter reads. |
Use Scenario: Wireless vibration/temperature/humidity node in predictive maintenance systems. IC Role / Device Role / Timing Role: Sensor aggregator and edge preprocessor - acquires analog/digital sensor data, applies filtering, and packages payloads for BLE/Zigbee transmission. Use Value: 0.57 μA STOP mode with RTC wake-up ensures sub-μA average current; hardware DMA reduces CPU load during multi-channel ADC sampling. |
| 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 control supervisor with LIN communication to inverter modules and UART to touch-panel MCU. Use Value: 41 DMIPS performance handles PID loop execution at 10 kHz; LIN-capable UART simplifies wiring to distributed actuators. |
Use Scenario: HVAC zone controller managing thermostats, dampers, and CO₂ sensors via wired bus (RS-485) and local I²C sensors. IC Role / Device Role / Timing Role: Protocol gateway translating Modbus RTU to I²C/SPI peripheral commands with time-stamped event logging. Use Value: Dual UART + 10 I²C channels support concurrent bus mastership; data flash BGO enables non-interruptible firmware update during runtime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100MGAFB#X0 | Same core/peripherals but in 80-pin LFQFP (0.5-mm pitch); 128 KB flash, 8 KB data flash, 12 KB RAM | Requires PCB redesign due to different footprint and pitch; suited for space-constrained layouts with fine-pitch assembly capability | Select when board area is limited and 0.5-mm pitch reflow is available; identical firmware compatibility |
| R5F101MGAFA#X0 | No data flash (0 KB); otherwise identical flash/RAM/peripherals/timing/power specs | Not suitable for applications requiring nonvolatile parameter storage or firmware update logging | Select only if data flash functionality is unused and BOM cost reduction is prioritized over field upgrade flexibility |
Compared with R5F100MGAFB#X0, the R5F100MGAFA#X0 offers drop-in compatibility for LQFP-0.65mm designs without layout change, while R5F101MGAFA#X0 trades data flash capability for lower unit cost in fixed-function deployments.
Availability
R5F100MGAFA#X0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and building automation panels requiring stable component supply across extended product lifecycles.
Supply support for R5F100MGAFA#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/G13 family targets cost-sensitive, ultra-low-power general-purpose embedded applications - designed to replace legacy 8/16-bit MCUs with enhanced integration, security, and energy efficiency.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F100MGAFA#X0?
The R5F100MGAFA#X0 operates up to 32 MHz using its high-speed on-chip oscillator, achieving 41 DMIPS. Its minimum instruction execution time is 0.03125 μs under this condition, enabling responsive real-time control and protocol processing in applications like smart meters and sensor hubs.
Does the R5F100MGAFA#X0 support in-system programming and secure firmware updates?
Yes, the R5F100MGAFA#X0 supports full on-chip debug and self-programming with boot swap and flash shield window functions. These features allow secure field firmware updates without external programmers, protecting intellectual property and enabling robust OTA deployment for the R5F100MGAFA#X0.
What low-power modes are available on the R5F100MGAFA#X0, and what is the lowest current consumption?
The R5F100MGAFA#X0 supports HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it consumes 0.57 μA - ideal for battery-powered devices requiring long-term timekeeping and wake-on-event functionality without compromising system responsiveness.
How many analog input channels does the R5F100MGAFA#X0 support, and what is the ADC resolution?
The R5F100MGAFA#X0 integrates a 10-bit successive-approximation ADC with up to 26 analog input channels (ANI0–ANI25). It includes an internal 1.45 V reference and temperature sensor, enabling accurate ratiometric measurements and thermal compensation in sensor applications using the R5F100MGAFA#X0.
Is the R5F100MGAFA#X0 pin-compatible with other RL78/G13 variants in the same package?
Yes, all RL78/G13 devices in the 80-pin LQFP-0.65mm package (e.g., R5F100MFAFA#X0, R5F100MHAFA#X0) share identical pinouts and electrical characteristics. This allows seamless migration across memory/configurations without PCB revision - provided the R5F100MGAFA#X0's 128 KB flash and 12 KB RAM meet application requirements.
R5F100MGAFA#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RL78/G13
- 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:
- 12K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 17x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F100MGAFA#X0 FAQ
1.How can I place an order for R5F100MGAFA#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100MGAFA#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 R5F100MGAFA#X0 reliable?
The price and inventory of R5F100MGAFA#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100MGAFA#X0 is usually 5 days.
3.What payment methods are accepted for R5F100MGAFA#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100MGAFA#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100MGAFA#X0?
R5F100MGAFA#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100MGAFA#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 R5F100MGAFA#X0?
For technical support, including R5F100MGAFA#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100MGAFA#X0 requirements.
6.How does Aetrix verify that R5F100MGAFA#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100MGAFA#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 R5F100MGAFA#X0 meets industry standards.
7.What is the process for return or replacement of R5F100MGAFA#X0?
All R5F100MGAFA#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100MGAFA#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 R5F100MGAFA#X0 part is unused and in its original packaging.
Return procedure for R5F100MGAFA#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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