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Renesas R5F103AADSP#X0
- Part No.:
- R5F103AADSP#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F103AADSP#X0.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 30LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,163
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Product details
Overview
R5F103AADSP#X0 from Renesas Electronics is a 30-pin LSSOP-packaged 16-bit RL78/G12 microcontroller designed for industrial embedded control applications requiring low power, robust timing, and mixed-signal integration. It features 16 KB code flash, 256 B RAM, 8-channel 10-bit ADC, 1-channel UART, and operates from 1.8 V to 5.5 V across –40°C to +85°C.
For engineers reviewing the R5F103AADSP#X0 datasheet, R5F103AADSP#X0 pinout, R5F103AADSP#X0 application, or R5F103AADSP#X0 equivalent, key selection criteria include its industrial-grade temperature rating (D-class), absence of data flash memory, simplified serial interface (CSI only, no I²C/Simplified I²C), and compatibility with 30-pin LSSOP footprint in space-constrained control modules.
Technical Context
The R5F103AADSP#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting minimum instruction execution time of 0.04167 µs at 24 MHz using the high-speed on-chip oscillator. Its clock system integrates a ±5.0% accurate 1–24 MHz internal oscillator and supports external crystal (1–20 MHz) via X1/X2 pins.
It delivers 31 DMIPS at 24 MHz and includes a 12-bit interval timer, window watchdog timer, on-chip power-on-reset and voltage detector (12-level selectable), and vectored interrupt support for 19 internal/6 external sources - optimized for deterministic real-time response in sensor interfacing and motor control loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline; enables efficient code density and deterministic timing for firmware-driven control tasks. |
| Flash Memory | 16 KB code flash (1 KB block size); sufficient for complex control algorithms with self-programming capability via flash shield window. |
| RAM Size | 256 B on-chip RAM; adequate for stack, variables, and small buffers in ultra-low-power sensor node implementations. |
| ADC Resolution | 10-bit A/D converter with 8 input channels; supports precision analog sensing (e.g., temperature, voltage monitoring) without external ADC. |
| Operating Voltage | 1.8 V to 5.5 V single supply; enables direct battery operation (e.g., 2×AA, Li-ion) and interoperability with 3.3 V/5 V logic domains. |
| Temperature Range | –40°C to +85°C (Industrial D-class); qualified for deployment in factory automation, HVAC, and industrial power supplies. |
| Power Consumption | As low as 63 μA/MHz in active mode; reduces thermal load and extends battery life in always-on monitoring systems. |
Pinout & Package
Package: 30-pin plastic LSSOP (7.62 mm, 0.65 mm pitch), RoHS-compliant, surface-mountable with exposed pad not required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10 | SCK00/SCL00/(TI07/TO07) | Primary SPI clock or I²C clock output; configurable for peripheral expansion or sensor communication with hardware-assisted timing. |
| P11 | SI00/RxD0/TOOLRxD/SDA00/(TI06/TO06) | UART receive or SPI data input; dual-role pin enables flexible debug (TOOLRxD) and field communication (RxD0) on same trace. |
| P12 | SO00/TxD0/TOOLTxD/(TI05/TO05) | UART transmit or SPI data output; supports in-system programming and host MCU interaction without dedicated debug header. |
| P13 | TxD2/SO20/(SDAA0)/(TI04/TO04) | Secondary UART or SPI output; provides redundant serial path for fail-safe diagnostics or multi-protocol gateway functions. |
| P14 | RxD2/SI20/SDA20/(SCLA0)/(TI03/TO03) | Secondary UART receive or SPI input; enables concurrent serial interfaces for sensor fusion or isolated subsystem control. |
| P20 | ANI0/AVREFP | Analog input channel 0 with positive reference voltage; used for ratiometric measurements (e.g., resistive sensors) with internal reference stability. |
| P21 | ANI1/AVREFM | Analog input channel 1 with negative reference voltage; supports differential ADC sampling and noise-rejecting signal conditioning. |
| RESET | Active-low reset input | Hardware reset trigger with internal pull-up; ensures reliable initialization during brown-out or power-up sequencing. |
| VDD / VSS | Power supply / Ground | Dual power pins enable low-impedance decoupling; critical for stable ADC performance and EMI immunity in noisy industrial environments. |
| X1 / X2 | Crystal oscillator inputs | Supports external 1–20 MHz crystal for precise timing-critical functions (e.g., PWM generation, UART baud rate accuracy). |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP/SNOOZE modes | Enables sub-μA sleep current in battery-powered devices while retaining RAM and register state for fast wake-up (<1 μs). |
| On-chip high-speed oscillator (±5.0% accuracy) | Eliminates external crystal for cost-sensitive designs where moderate timing tolerance suffices (e.g., LED dimming, fan control). |
| 8-channel 10-bit ADC with internal reference | Provides calibrated analog sensing without external voltage references-reducing BOM count and layout complexity. |
| 16-bit TAU timer with 8 channels | Supports simultaneous PWM generation, input capture, and interval timing for multi-axis motor control or encoder decoding. |
| On-chip voltage detector (12-level selectable) | Allows programmable brown-out detection thresholds to match system power rail behavior and prevent erratic operation. |
| True low-voltage operation (1.8 V min) | Permits direct interface with energy-harvesting sources (e.g., solar cells, piezoelectric transducers) without boost converters. |
Applications
| Industrial Sensor Node | Smart HVAC Controller |
|---|---|
|
Use Scenario: Wireless temperature/humidity sensor deployed in factory floor with 10-year battery life requirement. IC Role / Device Role / Timing Role: Primary system controller managing ADC sampling, low-power sleep scheduling, UART-to-LoRaWAN bridge, and watchdog supervision. Use Value: 63 μA/MHz active current and STOP mode reduce average power to <10 μA, extending CR2032 battery life beyond 10 years. |
Use Scenario: Wall-mounted HVAC thermostat with local display, relay control, and Zigbee connectivity. IC Role / Device Role / Timing Role: Central MCU handling button debouncing, thermistor reading, PID loop execution, relay timing, and Zigbee co-processor interface. Use Value: Integrated 16-bit TAU timers enable precise 100 ms relay on/off timing and 1 ms PID loop execution without external timing ICs. |
| Programmable Power Supply | Industrial Motor Starter |
|
Use Scenario: Benchtop DC power supply with digital voltage/current setpoint, overvoltage protection, and USB interface. IC Role / Device Role / Timing Role: Main controller executing DAC calibration, ADC feedback loop, safety interlock monitoring, and USB CDC command parsing. Use Value: On-chip voltage detector (12-level) allows dynamic brown-out threshold setting aligned with output stage rail collapse behavior. |
Use Scenario: Three-phase motor starter with thermal overload detection, soft-start ramping, and status LED indication. IC Role / Device Role / Timing Role: Real-time sequencer managing gate driver enable timing, current sense ADC sampling, and fault response within 100 μs. Use Value: 31 DMIPS at 24 MHz ensures deterministic execution of 50 μs current-loop interrupts while maintaining UI responsiveness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F103A9DSP#X0 | 8 KB code flash, 768 B RAM, same package and peripheral set; lacks 16 KB flash capacity. | Suitable for simpler control firmware with smaller code footprint (e.g., basic timer-based relays). | Select when firmware size is <80 KB and memory headroom is not required for future feature updates. |
| R5F102AADSP#X0 | Includes 2 KB data flash, CRC engine, RAM guard, and DMA; differs in oscillator accuracy (±1.0% vs ±5.0%) and peripheral count. | Better suited for firmware-over-the-air (FOTA) update storage and safety-critical applications requiring memory protection. | Choose when data logging, secure boot, or background flash reprogramming is mandatory - despite higher cost and larger code overhead. |
Compared with R5F103A9DSP#X0, the R5F103AADSP#X0 offers double flash and RAM for complex algorithms; versus R5F102AADSP#X0, it trades data flash and safety features for lower cost and tighter BOM control in non-certified industrial use cases.
Availability
R5F103AADSP#X0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC controllers, and programmable power supplies requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for R5F103AADSP#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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.
The RL78/G12 product line targets cost-sensitive, ultra-low-power industrial control applications - emphasizing integrated analog peripherals, robust timing, and simplified development for resource-constrained embedded systems.
FAQ
What is the maximum operating frequency of the R5F103AADSP#X0?
The R5F103AADSP#X0 supports a maximum system clock frequency of 24 MHz using its high-speed on-chip oscillator. When driven by an external crystal, the maximum frequency is 20 MHz. This enables 31 DMIPS performance for real-time control tasks while maintaining low power consumption at 63 μA/MHz.
Does the R5F103AADSP#X0 include data flash memory?
No, the R5F103AADSP#X0 does not include data flash memory. Unlike the R5F102 series, the R5F103 family omits the 2 KB data flash module. Firmware must use code flash with flash shield window functionality for parameter storage, or rely on external EEPROM/FRAM if persistent non-volatile data retention is required.
What package type and pin count does the R5F103AADSP#X0 use?
The R5F103AADSP#X0 uses a 30-pin plastic LSSOP package (7.62 mm body width, 0.65 mm lead pitch). This surface-mount package is compatible with standard reflow processes and provides 26 GPIOs, including 8 analog inputs and multiple serial interface pins for industrial control board layouts.
What is the operating temperature range for the R5F103AADSP#X0?
The R5F103AADSP#X0 is rated for industrial operation from –40°C to +85°C (D-class qualification). This makes it suitable for deployment in factory automation equipment, outdoor metering, and power conversion systems where ambient temperatures exceed consumer-grade limits.
Which serial interfaces are supported by the R5F103AADSP#X0?
The R5F103AADSP#X0 supports one UART channel (RxD0/TxD0), one CSI channel (SCK00/SI00/SO00), and optional secondary UART (RxD2/TxD2) or SPI (SCK20/SI20/SO20) on shared pins. It does not support I²C or Simplified I²C - a key distinction from the R5F102 series and critical for protocol selection in sensor networks.
R5F103AADSP#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 30-LSSOP (0.240", 6.10mm Width)
- Series:
- RL78/G12
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CSI, I2C, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 23
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 8x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F103AADSP#X0 FAQ
1.How can I place an order for R5F103AADSP#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F103AADSP#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 R5F103AADSP#X0 reliable?
The price and inventory of R5F103AADSP#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F103AADSP#X0 is usually 5 days.
3.What payment methods are accepted for R5F103AADSP#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F103AADSP#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F103AADSP#X0?
R5F103AADSP#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F103AADSP#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 R5F103AADSP#X0?
For technical support, including R5F103AADSP#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F103AADSP#X0 requirements.
6.How does Aetrix verify that R5F103AADSP#X0 is sourced from the original manufacturer or authorized distributors?
All R5F103AADSP#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 R5F103AADSP#X0 meets industry standards.
7.What is the process for return or replacement of R5F103AADSP#X0?
All R5F103AADSP#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F103AADSP#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 R5F103AADSP#X0 part is unused and in its original packaging.
Return procedure for R5F103AADSP#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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