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Renesas R5F100MJAFA#10
- Part No.:
- R5F100MJAFA#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F100MJAFA#10.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:720
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Product details
Overview
R5F100MJAFA#10 from Renesas is an RL78/G13 80-pin LQFP-0.65mm microcontroller with 256 KB flash, 8 KB data flash, 20 KB RAM, 32 MHz max CPU speed, and integrated 10-bit ADC (26 channels), RTC, UART, I²C, and SPI interfaces - deployed in industrial motor control and sensor node firmware.
For engineers reviewing the R5F100MJAFA#10 datasheet, R5F100MJAFA#10 pinout, R5F100MJAFA#10 application, or R5F100MJAFA#10 equivalent, key selection criteria include its -40°C to +85°C industrial temperature grade (D suffix), 1.6–5.5 V wide supply range, ultra-low-power STOP mode (0.57 μA), and on-chip debug support for rapid firmware validation.
Technical Context
The R5F100MJAFA#10 implements the RL78 CPU core with a 3-stage CISC pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz low-speed mode). It integrates a 12-bit interval timer, real-time clock with calendar and alarm, and watchdog timer with dedicated low-speed oscillator.
Its peripheral set includes up to 16 × 16-bit timers, 3–10 I²C/Simplified I²C channels, 2–4 UART/LIN channels, and 2–8 CSI (SPI-compatible) channels - all configurable via register-level control without external glue logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Clock Speed | 32 MHz using high-accuracy on-chip oscillator (±1.0% over VDD = 1.8–5.5 V, TA = –20 to +85°C) |
| Memory | 256 KB code flash (1 KB block size), 8 KB data flash (1M rewrite cycles), 20 KB SRAM |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA with RTC+LVD active), SNOOZE (low-latency wake-up) |
| Analog Peripherals | 10-bit ADC with 26 input channels, internal 1.45 V reference, and integrated temperature sensor |
| Digital Peripherals | Up to 16 × 16-bit timers, 3 × I²C, 4 × UART/LIN, 8 × CSI, DMA (4 channels), multiplier/divider/MAC |
| Operating Range | 1.6–5.5 V supply; –40°C to +85°C ambient (industrial D-grade) |
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 |
|---|---|---|
| P10/SCK00/SCL00 | SPI clock / I²C clock | Shared bidirectional clock line for synchronous serial communication; supports master/slave modes |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI input / UART receive / I²C data | Multi-function pin enabling flexible interface selection; TOOLRxD enables on-chip debug communication |
| P20/ANI0/AVREFP | Analog input 0 / ADC reference positive | Primary analog input channel; doubles as positive reference voltage source for ADC measurements |
| P21/ANI1/AVREFM | Analog input 1 / ADC reference negative | Secondary analog input; serves as negative reference for differential ADC operation |
| P22/ANI2 | Analog input 2 | Dedicated analog input channel; supports single-ended or differential measurement with AVREFM |
| RESET | Active-low reset input | Hardware reset trigger; internally pulled up; accepts external debounced signal or POR/LVD assertion |
| VDD, VSS | Power supply and ground | Single 1.6–5.5 V supply rail; multiple VSS pins ensure low-noise analog/digital separation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA current draw while retaining RTC operation and low-voltage detector functionality |
| Self-programmable flash | On-the-fly reprogramming of code/data flash with boot swap and flash shield window protection |
| Background data flash write | Execute code from program memory while rewriting data flash (BGO), enabling seamless firmware updates |
| Multi-voltage I/O | Supports 1.8 V, 2.5 V, and 3.0 V logic interfaces without level shifters via configurable I/O voltage tolerance |
| Integrated safety functions | On-chip POR, 14-level LVD with interrupt/reset options, and watchdog timer with independent oscillator |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
|
Use Scenario: Closed-loop BLDC motor commutation with current sensing, thermal monitoring, and CAN-based command interface. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithm, managing PWM generation, ADC sampling, and real-time fault response. Use Value: 32 MHz CPU delivers 41 DMIPS for deterministic motor control loops; 26-channel ADC supports simultaneous phase current and temperature sampling. |
Use Scenario: Battery-powered environmental sensor hub collecting temperature, humidity, and CO₂ data for wireless transmission. IC Role / Device Role / Timing Role: Low-power system manager handling sensor polling, data preprocessing, RTC-triggered wake-up, and UART-to-Bluetooth bridge. Use Value: STOP mode at 0.57 μA extends battery life; integrated temperature sensor and 1.45 V reference enable calibrated analog readings without external components. |
| Home Appliance UI Controller | Industrial PLC I/O Module |
|
Use Scenario: Touch-button and LED display management in washing machine control panel with buzzer feedback and power fault detection. IC Role / Device Role / Timing Role: Dedicated UI processor handling key scan, LED dimming via PWM, buzzer tone generation, and LVD-triggered shutdown. Use Value: On-chip clock output/buzzer controller eliminates external drivers; N-ch open-drain I/O supports direct LED driving and 6 V-tolerant button inputs. |
Use Scenario: Digital input/output expansion module for modular PLC systems requiring isolated field-side signal conditioning and diagnostics. IC Role / Device Role / Timing Role: Local intelligence unit managing opto-isolated input sampling, relay drive timing, and diagnostic LED sequencing. Use Value: 80-pin package provides 64 GPIOs; programmable pull-up resistors and TTL input buffers simplify interface to diverse field devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100MJDFB#V0 | Same RL78/G13 core, identical memory (256 KB/8 KB/20 KB), but LFQFP-0.5 mm (80-pin) package | Requires PCB redesign due to finer pitch (0.5 mm vs. 0.65 mm) and different land pattern | Select when board space constraints favor smaller footprint or when existing LFQFP-0.5 mm layout is reused |
| R5F101MJAFP#V0 | Same package and pinout, but no data flash (0 KB); otherwise identical flash/RAM/peripherals | Not suitable for applications requiring nonvolatile parameter storage or firmware update staging | Select only if data flash functionality is unused and cost reduction is prioritized over field-upgrade capability |
Compared with R5F100MJDFB#V0, the R5F100MJAFA#10 offers easier hand-soldering and rework compatibility due to its 0.65 mm pitch; compared with R5F101MJAFP#V0, it retains full data flash functionality essential for runtime configuration storage and secure firmware updates.
Availability
R5F100MJAFA#10 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, home appliance UIs, and PLC I/O modules requiring stable component supply across extended product lifecycles.
Supply support for R5F100MJAFA#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, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G13 family targets cost-sensitive, ultra-low-power general-purpose embedded applications - balancing performance, integration, and energy efficiency for industrial and consumer equipment.
FAQ
What is the operating temperature range for the R5F100MJAFA#10?
The R5F100MJAFA#10 is rated for industrial operation from –40°C to +85°C, as indicated by the 'D' suffix in its part number. This grade ensures reliable performance in factory automation, motor drives, and outdoor sensor enclosures where ambient temperatures exceed consumer-grade limits.
Does the R5F100MJAFA#10 include on-chip debug capability?
Yes, the R5F100MJAFA#10 includes full on-chip debug functionality compatible with Renesas E2 emulator and CS+ IDE. Debug access uses the TOOLRxD pin (P11) and supports breakpoints, watchpoints, and real-time variable monitoring without halting peripheral operation.
Can the R5F100MJAFA#10 operate from a 1.8 V supply?
Yes, the R5F100MJAFA#10 supports a minimum supply voltage of 1.6 V, making it fully operational at 1.8 V. At this voltage, the maximum CPU frequency is reduced to 16 MHz per the datasheet's voltage-frequency specification curve, preserving timing integrity and power efficiency.
How many ADC channels does the R5F100MJAFA#10 support?
The R5F100MJAFA#10 supports up to 26 analog input channels for its 10-bit successive-approximation ADC. Channel mapping is fixed per pin assignment (e.g., P20 = ANI0, P21 = ANI1), and all channels share the same reference (AVREFP/AVREFM) and conversion clock source.
Is the R5F100MJAFA#10 pin-compatible with other RL78/G13 variants in the 80-pin LQFP package?
Yes, all RL78/G13 80-pin LQFP variants with the 'FA' suffix (e.g., R5F100MJAFA#10, R5F100MLAFA#10) share identical pinouts and electrical characteristics. Memory size and feature sets differ, but PCB layout and signal routing remain interchangeable across this package group.
R5F100MJAFA#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RL78/G13
- 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:
- 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#10 FAQ
1.How can I place an order for R5F100MJAFA#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100MJAFA#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 R5F100MJAFA#10 reliable?
The price and inventory of R5F100MJAFA#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100MJAFA#10 is usually 5 days.
3.What payment methods are accepted for R5F100MJAFA#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100MJAFA#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100MJAFA#10?
R5F100MJAFA#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100MJAFA#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 R5F100MJAFA#10?
For technical support, including R5F100MJAFA#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100MJAFA#10 requirements.
6.How does Aetrix verify that R5F100MJAFA#10 is sourced from the original manufacturer or authorized distributors?
All R5F100MJAFA#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 R5F100MJAFA#10 meets industry standards.
7.What is the process for return or replacement of R5F100MJAFA#10?
All R5F100MJAFA#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100MJAFA#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 R5F100MJAFA#10 part is unused and in its original packaging.
Return procedure for R5F100MJAFA#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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