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Renesas R5F100MJAFA#V0
- Part No.:
- R5F100MJAFA#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F100MJAFA#V0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,111
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Product details
Overview
R5F100MJAFA#V0 from Renesas is an RL78/G13 80-pin LQFP-0.65mm microcontroller with 256 KB flash, 8 KB data flash, 20 KB RAM, 52-channel 10-bit ADC, and real-time clock - designed for low-power industrial control systems operating from 1.6 V to 5.5 V.
For engineers reviewing the R5F100MJAFA#V0 datasheet, R5F100MJAFA#V0 pinout, R5F100MJAFA#V0 application, or R5F100MJAFA#V0 equivalent, key selection criteria include ultra-low power consumption (66 μA/MHz active, 0.57 μA RTC+LVD), integrated LIN-capable UARTs, hardware multiplier/divider, and 80-pin LQFP package with 52 analog inputs and 64 general-purpose I/O pins.
Technical Context
The R5F100MJAFA#V0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates dual DMA controllers (4 channels), a 12-bit interval timer, and calendar-based real-time clock with alarm and correction functions.
It features three serial interface types: up to 8 CSI (SPI-compatible) channels, 4 UART/LIN channels, and 10 I²C/Simplified I²C channels. Power management includes HALT, STOP, and SNOOZE modes, on-chip POR, and 14-level LVD with selectable interrupt/reset behavior.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash Memory | 256 KB code flash with 1 KB block size, self-programming, and flash shield window |
| Data Flash | 8 KB background operation (BGO) capable, 1,000,000 write cycles, 1.8–5.5 V rewrite voltage |
| RAM | 20 KB on-chip RAM, including dedicated areas for flash library use (start address FAF00H) |
| ADC | 10-bit resolution, 52-channel analog input, internal 1.45 V reference and temperature sensor |
| Operating Voltage | 1.6 V to 5.5 V supply range, supporting direct interface with 1.8/2.5/3.0 V peripherals |
| Temperature Range | −40°C to +85°C (industrial-grade A/D variant), qualified per JEDEC JESD22-A108 |
Pinout & Package
Package: 80-pin plastic LQFP (14 × 14 mm, 0.65-mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Port 10 / SPI Clock / I²C Clock | Multi-function pin supporting synchronous serial clock output/input and I²C bus timing |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Port 11 / SPI Input / UART0 RX / Debug RX / I²C Data | Shared serial interface pin enabling SPI slave input, UART0 receive, debug communication, and I²C bidirectional data |
| P20/ANI0/AVREFP | Port 20 / Analog Input 0 / ADC Reference Positive | Analog input channel 0 and positive reference voltage input for ADC conversions |
| P21/ANI1/AVREFM | Port 21 / Analog Input 1 / ADC Reference Negative | Analog input channel 1 and negative reference voltage input for differential ADC operation |
| P22/ANI2 | Port 22 / Analog Input 2 | Dedicated analog input channel supporting single-ended or differential measurement |
| P147/ANI18 | Port 147 / Analog Input 18 | High-numbered analog input pin mapped to physical pin 147, part of 52-channel ADC resource |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power operation | 66 μA/MHz active current and 0.57 μA in RTC+LVD-only mode enables battery-powered operation for years |
| Hardware math accelerator | Integrated 16×16→32-bit multiplier, 32÷32→32-bit divider, and MAC unit reduce firmware overhead for control algorithms |
| LIN-compliant UART | UART0–UART3 support LIN 2.2 protocol with automatic sync-break detection and checksum generation |
| Flexible clock system | High-accuracy on-chip oscillator (±1.0% over −20 to +85°C) selectable from 1–32 MHz, eliminating external crystal in cost-sensitive designs |
| Secure flash programming | Block erase prohibition and flash shield window prevent unauthorized reprogramming of protected memory regions |
Applications
| Industrial Motor Control | Smart Energy Metering |
|---|---|
|
Use Scenario: Closed-loop speed and torque regulation in BLDC/PMSM drives with Hall/encoder feedback. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithm, managing PWM timers, ADC sampling, and CAN/LIN communication. Use Value: 20 KB RAM and hardware multiplier enable real-time motor control at ≤20 kHz update rates; 52-channel ADC supports simultaneous current/voltage/sensor acquisition. |
Use Scenario: Polyphase electricity meter with metrology, tamper detection, and HPLC/RF communication. IC Role / Device Role / Timing Role: System-on-chip managing metrology engine interface, LCD driver, RTC calendar, and secure firmware updates. Use Value: Integrated RTC with calendar and alarm supports time-of-use billing; 8 KB data flash stores tariff tables and event logs with 1M-cycle endurance. |
| Home Appliance Control | Building Automation Node |
|
Use Scenario: Washing machine main board controlling motor, valves, heating, display, and user interface. IC Role / Device Role / Timing Role: Primary MCU handling sensor fusion (NTC, pressure, vibration), UI rendering, and safety monitoring (LVD, thermal shutdown). Use Value: Ultra-low standby current (0.57 μA) extends battery backup life for clock/calendar; 64 GPIOs support diverse peripheral interfaces without external expanders. |
Use Scenario: HVAC zone controller with temperature/humidity sensing, actuator drive, and BACnet MS/TP communication. IC Role / Device Role / Timing Role: Embedded controller managing multi-sensor polling, PID loop execution, relay/valve outputs, and wired fieldbus interface. Use Value: SNOOZE mode allows periodic wake-up for sensor reads while maintaining sub-μA average current; LIN-capable UART simplifies integration with legacy building networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100MJGFA#V0 | Same 256 KB flash, 8 KB data flash, 20 KB RAM, but rated for −40°C to +105°C (G-grade industrial) | Required for extended-temperature environments such as rooftop HVAC or factory-floor PLCs | Select when ambient operating temperature exceeds +85°C or long-term reliability under thermal cycling is critical |
| R5F101MJAFP#V0 | Identical pinout and package, but lacks data flash memory (0 KB); retains full code flash and peripheral set | Suitable where firmware updates occur only via external host or where EEPROM emulation is handled externally | Choose to reduce BOM cost when non-volatile parameter storage is implemented off-chip or unnecessary |
Compared with R5F100MJAFA#V0, the R5F100MJGFA#V0 adds extended temperature qualification without sacrificing power or peripheral capability, while the R5F101MJAFP#V0 removes data flash to lower cost - making the original ideal for applications needing robust on-chip parameter retention within standard industrial temperature limits.
Availability
R5F100MJAFA#V0 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, home appliance control, and building automation requiring stable component supply across multi-year production cycles.
Supply support for R5F100MJAFA#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, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G13 family delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and thermally constrained industrial and consumer applications - emphasizing energy efficiency, integrated peripherals, and functional safety readiness.
FAQ
What is the maximum operating frequency and corresponding current consumption of the R5F100MJAFA#V0?
The R5F100MJAFA#V0 operates up to 32 MHz using its high-speed on-chip oscillator. At this frequency, active current consumption is 66 μA per MHz (2.112 mA typical at 32 MHz). In HALT mode with RTC and LVD enabled, it draws just 0.57 μA - verified per R01DS0131EJ0380 Rev.3.80 datasheet Section 1.1.
Does the R5F100MJAFA#V0 support LIN bus communication, and which UART channels are LIN-capable?
Yes, the R5F100MJAFA#V0 supports LIN 2.2 protocol on UART0 through UART3. Each channel includes dedicated LIN sync-break detection, checksum generation, and identifier filtering - enabling direct connection to LIN transceivers without external protocol assist. This capability is confirmed in the RL78/G13 datasheet Section 1.1 "Serial interface".
How much user-accessible RAM is available on the R5F100MJAFA#V0, and is any reserved for system functions?
The R5F100MJAFA#V0 provides 20 KB of on-chip RAM. Per datasheet Section 1.6 and Flash Self-Programming Library documentation (R20UT2944), 256 bytes starting at address FAF00H are reserved for flash library operations during data flash self-programming - leaving 20,144 bytes fully available for application use.
What ADC resolution, channel count, and reference options does the R5F100MJAFA#V0 offer?
The R5F100MJAFA#V0 integrates a 10-bit successive-approximation ADC with 52 configurable analog input channels. It supports external reference voltages or internal 1.45 V reference (selectable only in HS mode), and includes an on-die temperature sensor. These specifications are detailed in Section 1.1 "A/D converter" of the R01DS0131EJ0380 datasheet.
Is the R5F100MJAFA#V0 pin-compatible with other RL78/G13 variants in the same package, and what defines compatibility?
Yes - the R5F100MJAFA#V0 shares identical 80-pin LQFP-0.65mm mechanical footprint and pin function mapping with all RL78/G13 variants in the PLQP0080JB-E package (e.g., R5F100MFAFA#V0, R5F100MLAFA#V0). Pin compatibility is guaranteed by Renesas' family-wide pinout consistency, documented in Table 1-1 and Figure 1-1 of R01DS0131EJ0380.
R5F100MJAFA#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RL78/G13
- 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:
- 64
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 20K 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:
R5F100MJAFA#V0 FAQ
1.How can I place an order for R5F100MJAFA#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100MJAFA#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 R5F100MJAFA#V0 reliable?
The price and inventory of R5F100MJAFA#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100MJAFA#V0 is usually 5 days.
3.What payment methods are accepted for R5F100MJAFA#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100MJAFA#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100MJAFA#V0?
R5F100MJAFA#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100MJAFA#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 R5F100MJAFA#V0?
For technical support, including R5F100MJAFA#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100MJAFA#V0 requirements.
6.How does Aetrix verify that R5F100MJAFA#V0 is sourced from the original manufacturer or authorized distributors?
All R5F100MJAFA#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 R5F100MJAFA#V0 meets industry standards.
7.What is the process for return or replacement of R5F100MJAFA#V0?
All R5F100MJAFA#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100MJAFA#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 R5F100MJAFA#V0 part is unused and in its original packaging.
Return procedure for R5F100MJAFA#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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