Renesas R5F102AADSP#30
- Part No.:
- R5F102AADSP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F102AADSP#30.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 30LSSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F102AADSP#30 from Renesas Electronics is a 30-pin LSSOP packaged 16-bit RL78/G12 microcontroller designed for industrial embedded control. It integrates 16 KB code flash, 2 KB data flash, 2 KB RAM, 8-channel 10-bit A/D converter, and dual-channel DMA - operating from 1.8 V to 5.5 V across –40°C to +85°C for motor control, sensor interface, and smart appliance applications.
For engineers reviewing the R5F102AADSP#30 datasheet, R5F102AADSP#30 pinout, R5F102AADSP#30 application, or R5F102AADSP#30 equivalent, key selection criteria include its industrial-grade temperature rating (D-suffix), on-chip data flash endurance (1M rewrite cycles), high-accuracy ±1.0% on-chip oscillator (–20°C to +85°C), and support for UART/CSI/I²C serial interfaces with peripheral I/O redirection.
Technical Context
The R5F102AADSP#30 implements the RL78 CPU core with 3-stage pipeline CISC architecture, delivering 31 DMIPS at 24 MHz. Its power management includes HALT, STOP, and SNOOZE low-power modes enabling 63 μA/MHz active current consumption.
It features a voltage regulator (REGC pin), CRC calculation unit, RAM/SFR guard functions, and background operation (BGO) for concurrent data flash rewriting while executing code - all validated for industrial TA = –40°C to +85°C operation per D-suffix specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Memory | 16 KB code flash (1 KB blocks), 2 KB data flash (1M rewrite cycles), 2 KB RAM |
| Operating Voltage | 1.8 V to 5.5 V - supports direct interface with 1.8/2.5/3.3 V peripherals |
| Temperature Range | –40°C to +85°C (industrial D-grade, verified per datasheet Table 1-1) |
| Oscillator Accuracy | ±1.0% @ –20°C to +85°C (high-speed on-chip oscillator, R5F102-specific spec) |
| Analog Peripherals | 8-channel 10-bit A/D converter with internal 1.45 V reference and temperature sensor |
| Serial Interfaces | 1 UART, 1 simplified SPI (CSI), 1 simplified I²C - all configurable via PIOR register |
| DMA Channels | 2-channel DMA controller enabling zero-CPU-overhead memory transfers |
Pinout & Package
Package: 30-pin plastic LSSOP (7.62 mm, 0.65-mm pitch), RoHS-compliant, tray-packaged (#30 suffix). Includes dedicated REGC pin requiring 0.47–1 µF capacitor to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Serial clock I/O | Configurable as CSI00 clock or I²C00 clock; supports peripheral I/O redirection |
| P11/SI00/RxD0/SDA00 | Serial data input / UART receive / I²C data | Multi-function pin for UART0, CSI00, or IICA0; enables flexible peripheral mapping |
| P12/SO00/TxD0/TOOLTxD | Serial data output / UART transmit / debug TX | Shared UART0 transmit and on-chip debug interface; reduces external debug hardware needs |
| P13/TxD2/SO20/SDAA0 | UART2 TX / CSI20 output / IICA0 data | Enables secondary UART or expanded serial interface without additional ICs |
| P14/RxD2/SI20/SDA20 | UART2 RX / CSI20 input / IICA0 data | Supports dual UART or dual I²C buses for multi-sensor or multi-module communication |
| REGC | Voltage regulator capacitance | Must connect 0.47–1 µF capacitor to VSS; stabilizes internal LDO for analog/digital separation |
| RESET | Active-low reset input | Accepts external reset signal; also triggered by POR, LVD, watchdog, or illegal instruction |
| X1/X2 | Crystal oscillator inputs | Supports 1–20 MHz crystal/ceramic resonator for precise timing-critical applications |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power operation | 63 μA/MHz active current enables battery-powered industrial sensors with multi-year runtime |
| Data flash with BGO | Background operation allows firmware updates or logging without halting real-time control tasks |
| Peripheral I/O redirection (PIOR) | Runtime remapping of UART/CSI/I²C pins frees PCB layout constraints and simplifies revision control |
| RAM/SFR/CRC guard | Hardware protection against unintended memory corruption improves functional safety compliance |
| Industrial temperature grade | D-suffix guarantees full electrical specs over –40°C to +85°C - validated for factory automation environments |
| On-chip debug interface | Single-pin TOOL0 + TOOLRxD/TOOLTxD enables in-system programming and real-time trace without JTAG header |
Applications
| Motor Control System | Smart Thermostat |
|---|---|
Use Scenario: Closed-loop speed regulation of BLDC fans in HVAC units using PWM outputs and A/D feedback. IC Role / Device Role / Timing Role: Real-time controller managing TAU0 timer channels for 8-channel PWM generation and 8-channel A/D sampling at 100 kS/s. Use Value: Integrated 2 KB data flash stores calibration coefficients and runtime logs; SNOOZE mode reduces standby power to <1 μA. | Use Scenario: Local environmental sensing and wireless reporting in residential/building automation systems. IC Role / Device Role / Timing Role: Sensor hub aggregating temperature, humidity, and occupancy data via I²C and UART, then transmitting via sub-GHz RF module. Use Value: Dual UART + simplified I²C enables concurrent sensor polling and RF communication; 1.8 V operation extends coin-cell battery life. |
| Industrial PLC I/O Module | Medical Infusion Pump |
Use Scenario: Digital input/output expansion for DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Isolated digital I/O manager with CRC-protected firmware updates and watchdog supervision. Use Value: RAM guard and SFR guard prevent configuration corruption during EMI events; 2-channel DMA offloads I/O scanning from CPU. | Use Scenario: Precision fluid delivery control requiring fail-safe monitoring and dosage logging. IC Role / Device Role / Timing Role: Safety-critical controller performing real-time flow rate calculation, motor sequencing, and non-volatile event logging. Use Value: Data flash endurance (1M cycles) supports lifetime dose history storage; ±1.0% oscillator accuracy ensures reliable timing for infusion timing windows. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F102AAGSP#30 | G-grade (–40°C to +105°C); identical memory/peripherals but higher max ambient temp | Suitable for under-hood automotive or high-temp industrial enclosures | Select when ambient exceeds +85°C; otherwise R5F102AADSP#30 offers cost-optimized D-grade performance |
| R5F103AADSP#30 | No data flash; no DMA; no CRC/RAM/SFR guard; ±5.0% oscillator accuracy | Limited to basic control where data logging, safety checks, or precision timing are not required | Choose only for cost-sensitive, non-safety-critical applications with simpler firmware update needs |
Compared with R5F102AAGSP#30, the R5F102AADSP#30 trades extended temperature range for lower cost and same industrial reliability; versus R5F103AADSP#30, it adds critical data integrity and timing features essential for certified medical or industrial control designs.
Availability
R5F102AADSP#30 is available at Aetrix Electronics and suitable for motor control, sensor interface, and industrial PLC I/O modules requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature performance.
Supply support for R5F102AADSP#30 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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and IoT markets.
The RL78/G12 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive industrial control, home appliances, and sensor nodes - balancing performance, integration, and energy efficiency without sacrificing reliability.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F102AADSP#30?
The R5F102AADSP#30 operates up to 24 MHz using its high-speed on-chip oscillator and delivers 31 DMIPS at that frequency. This performance level is confirmed in the official Renesas datasheet R01DS0193EJ0250 Rev.2.50, page 1. The 24 MHz clock is achievable across the full 1.8 V to 5.5 V supply range and –40°C to +85°C temperature range specified for this D-grade part.
Does the R5F102AADSP#30 support background data flash rewriting while executing application code?
Yes, the R5F102AADSP#30 supports background operation (BGO) for data flash rewriting. This allows the CPU to continue executing instructions from program memory while simultaneously erasing or programming the 2 KB data flash area - a capability explicitly documented for R5F102 products in the datasheet section 1.1 Features and verified in the RL78 Family Data Flash Library Type04 User's Manual.
How many analog input channels does the R5F102AADSP#30 provide, and what is their resolution?
The R5F102AADSP#30 provides 8 analog input channels with 10-bit resolution. This is confirmed in the "Outline of Functions" table on page 14 of the datasheet (R01DS0193EJ0250 Rev.2.50), which specifies "8 channels" for the 30-pin R5F102Ax variant. The A/D converter operates across the full 1.8 V to 5.5 V supply range and includes an internal 1.45 V reference voltage and integrated temperature sensor.
What package type and pin count does the R5F102AADSP#30 use, and what does the #30 suffix indicate?
The R5F102AADSP#30 uses a 30-pin plastic LSSOP package (7.62 mm wide, 0.65-mm pitch), and the #30 suffix denotes tray packaging per Renesas' standard ordering code convention (Figure 1-1, page 3). This matches the "30-pin plastic LSSOP" description in Table 1-1 (page 4) and the pin diagram on page 9 of the datasheet.
Is the R5F102AADSP#30 pin-compatible with other RL78/G12 variants such as the R5F102AAGSP#30 or R5F103AADSP#30?
The R5F102AADSP#30 shares the same 30-pin LSSOP package and identical pinout with R5F102AAGSP#30 and R5F103AADSP#30 - confirmed by the shared "30-pin plastic LSSOP" listing in Table 1-1 (page 4) and identical top-view diagrams in section 1.4.3. However, functional differences exist: R5F102AAGSP#30 adds +105°C operation, while R5F103AADSP#30 omits data flash, DMA, and guard functions.
R5F102AADSP#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 30-LSSOP (0.240", 6.10mm Width)
- Series:
- RL78/G12
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CSI, I2C, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 23
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- 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:
R5F102AADSP#30 FAQ
1.How can I place an order for R5F102AADSP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F102AADSP#30 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 R5F102AADSP#30 reliable?
The price and inventory of R5F102AADSP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F102AADSP#30 is usually 5 days.
3.What payment methods are accepted for R5F102AADSP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F102AADSP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F102AADSP#30?
R5F102AADSP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F102AADSP#30 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 R5F102AADSP#30?
For technical support, including R5F102AADSP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F102AADSP#30 requirements.
6.How does Aetrix verify that R5F102AADSP#30 is sourced from the original manufacturer or authorized distributors?
All R5F102AADSP#30 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 R5F102AADSP#30 meets industry standards.
7.What is the process for return or replacement of R5F102AADSP#30?
All R5F102AADSP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F102AADSP#30, 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 R5F102AADSP#30 part is unused and in its original packaging.
Return procedure for R5F102AADSP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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