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Renesas R5F102A9ASP#30
- Part No.:
- R5F102A9ASP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F102A9ASP#30.pdf
- Description:
- IC MCU 16BIT 12KB FLASH 30LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,870
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Product details
Overview
R5F102A9ASP#30 from Renesas Electronics is a 30-pin LSSOP ultra-low-power 16-bit RL78/G12 microcontroller designed for embedded control in consumer-grade applications (–40°C to +85°C). It integrates 16 KB code flash, 2 KB data flash, 2 KB RAM, an 8-channel 10-bit A/D converter, and dual UART/CSI/I²C serial interfaces - enabling compact sensor node and appliance control designs.
For engineers reviewing the R5F102A9ASP#30 datasheet, R5F102A9ASP#30 pinout, R5F102A9ASP#30 application, or R5F102A9ASP#30 equivalent, key selection criteria include its 2 KB data flash with background operation, 2-channel DMA support, CRC hardware accelerator, and 30-pin LSSOP package with REGC regulator capacitor terminal - all validated for low-voltage (1.8 V) operation and HALT/STOP/SNOOZE power modes.
Technical Context
The R5F102A9ASP#30 implements the RL78 CPU core with 3-stage pipeline CISC architecture, delivering 31 DMIPS at 24 MHz while maintaining true low-power operation (63 μA/MHz). Its memory subsystem includes 16 KB code flash (1 KB block size), 2 KB data flash supporting 1M rewrite cycles and background operation (BGO), and 2 KB on-chip RAM.
Peripherals include 8-channel 16-bit TAU timer with PWM output capability, 12-bit interval timer, window watchdog timer, high-accuracy ±1.0% high-speed on-chip oscillator (1–24 MHz), and safety features including CRC calculation unit, RAM guard, and SFR guard - all confirmed for the R5F102 product line and 30-pin configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Operating Voltage | 1.8 V to 5.5 V - enables direct interface with 1.8/2.5/3.3 V logic and battery-powered systems |
| Flash Memory | 16 KB code flash + 2 KB data flash - supports self-programming and BGO for firmware updates without halting execution |
| ADC | 10-bit resolution, 8 input channels - includes internal reference (1.45 V) and temperature sensor for sensor fusion |
| Serial Interfaces | 1 UART, 1 CSI (SPI-compatible), 1 I²C - sufficient for multi-sensor communication and host MCU coordination |
| Power Modes | HALT, STOP, SNOOZE - achieves 63 μA/MHz active current and sub-μA standby consumption |
| Package & Pins | LSSOP-30 (7.62 mm, 0.65 mm pitch) with REGC terminal - requires 0.47–1 μF capacitor to VSS for internal regulator stability |
Pinout & Package
30-pin plastic LSSOP (7.62 mm × 10.16 mm, 0.65 mm pitch) with exposed pad not present; REGC pin requires external 0.47–1 μF decoupling capacitor to VSS per datasheet Caution.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply | Main 1.8–5.5 V supply rail for core and I/O |
| VSS | Ground | Reference ground for analog/digital domains and REGC capacitor return |
| REGC | Regulator capacitance | Connects to VSS via 0.47–1 μF capacitor to stabilize internal voltage regulator |
| RESET | Reset input | Active-low asynchronous reset; also supports on-chip POR/LVD reset sources |
| P10–P17 | Port 1 I/O | Configurable CMOS I/O with N-ch open-drain option (VDD-tolerant); supports peripheral redirection |
| P20–P23 | Analog input / AVREF | ANI0–ANI3 with AVREFP/AVREFM - dedicated analog domain pins with ±0.3 V absolute max rating |
| P30, P31 | Port 3 with CSI11/IIC11 | Supports secondary SPI/I²C interface (SCK11/SDA11/SCL11) and interrupt inputs INTP3/INTP4 |
| P60, P61 | I²C bus interface | SCLA0/SDAA0 - 6 V-tolerant N-ch open-drain pins for standard-mode I²C (up to 400 kHz) |
Key Features
| Feature | Design Value |
|---|---|
| True low-power platform | 63 μA/MHz active current and sub-μA STOP mode - reduces battery drain in portable devices |
| Data flash with BGO | 2 KB data flash supports background rewriting during program execution - enables seamless over-the-air updates |
| Hardware CRC accelerator | Dedicated CRC unit accelerates checksum calculation for firmware integrity verification and communication protocols |
| Memory protection | RAM guard and SFR guard prevent accidental writes to critical memory regions - enhances system reliability |
| Multi-voltage I/O | Supports 1.8/2.5/3.3 V logic interfaces without level shifters - simplifies mixed-voltage board design |
Applications
| Home Appliance Control | Industrial Sensor Node |
|---|---|
Use Scenario: Microcontroller in washing machine main control board managing motor drive, water valve timing, and user interface. IC Role / Device Role / Timing Role: Primary system controller executing real-time motor sequencing, ADC-based load sensing, and UART-based display communication. Use Value: 16 KB flash stores complex wash cycle algorithms; 2 KB data flash logs fault codes across power cycles; 8-channel ADC monitors current, temperature, and vibration sensors. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ in HVAC ducts. IC Role / Device Role / Timing Role: Low-power data acquisition engine sampling sensors every 10 seconds and transmitting via UART to gateway. Use Value: 63 μA/MHz operation extends 2xAA battery life beyond 2 years; SNOOZE mode wakes on timer interrupt; built-in temperature sensor enables self-calibration. |
| Smart Meter Interface | Consumer IoT Hub |
Use Scenario: Communication interface module in electricity meter connecting metrology IC and PLC modem. IC Role / Device Role / Timing Role: UART-to-PLC bridge with CRC-protected command framing and EEPROM emulation using data flash. Use Value: Hardware CRC ensures reliable command transmission; 2 KB data flash replaces external EEPROM for tariff storage and event logging. | Use Scenario: Central controller in smart lighting panel coordinating RGBW LED drivers and touch buttons. IC Role / Device Role / Timing Role: Peripheral coordinator managing I²C LED drivers, key scan interrupts, and buzzer feedback via PCLBUZ0/PCLBUZ1. Use Value: Dual buzzer outputs enable distinct audio alerts; 30-pin LSSOP provides ample GPIO for button matrix and driver enable lines; 1.8 V operation matches low-voltage LED driver supplies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F103A9ASP#30 | No data flash (0 KB), no DMA, no CRC, no RAM/SFR guard; ±5.0% oscillator accuracy | Lacks BGO, firmware update resilience, and safety features required for field-upgradable devices | Select when cost sensitivity outweighs data retention and functional safety needs |
| R5F102AAASP#30 | Same package and peripherals but 16 KB code flash only (no data flash variant distinction - both have 2 KB data flash per family spec) | Identical memory and peripheral set; differs only in ordering suffix - functionally identical for design purposes | Valid drop-in replacement; verify packaging (#30 tray) and field grade (A vs D/G) match |
Compared with R5F103A9ASP#30, the R5F102A9ASP#30 adds critical data persistence and safety functions; compared with R5F102AAASP#30, it shares identical silicon functionality - making the latter a verified pin-and-function equivalent with identical supply chain traceability.
Availability
R5F102A9ASP#30 is available at Aetrix Electronics and suitable for home appliance control, industrial sensor nodes, smart meter interfaces, and consumer IoT hubs requiring stable component supply, long-term lifecycle support, and guaranteed Renesas factory traceability.
Supply support for R5F102A9ASP#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 automotive, industrial, and IoT markets.
The RL78/G12 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and energy-efficient embedded control applications - emphasizing integrated analog, robust safety features, and simplified development.
FAQ
What is the maximum operating frequency of the R5F102A9ASP#30?
The R5F102A9ASP#30 supports a maximum high-speed on-chip oscillator frequency of 24 MHz, delivering 31 DMIPS performance. When using an external crystal (X1), the maximum main system clock frequency is 20 MHz at VDD ≥ 2.7 V or 16 MHz at VDD ≥ 2.4 V. The minimum instruction execution time is 0.04167 µs under 24 MHz on-chip oscillator operation - confirmed in the RL78/G12 datasheet Rev.2.50.
Does the R5F102A9ASP#30 include data flash memory?
Yes, the R5F102A9ASP#30 includes 2 KB of data flash memory, a defining feature of the R5F102 product line. This memory supports background operation (BGO), enabling code execution from program memory while rewriting data flash, and guarantees 1,000,000 rewrite cycles at VDD = 1.8–5.5 V - as specified in the R01DS0193EJ0250 datasheet Section 1.1.
What is the purpose of the REGC pin on the R5F102A9ASP#30?
The REGC pin on the R5F102A9ASP#30 connects to the internal voltage regulator's stabilization capacitor. Per datasheet Caution on Page 9, it must be connected to VSS via a 0.47–1 µF capacitor to ensure stable operation of the internal regulator - failure to do so may cause erratic behavior or failure to start. This pin is exclusive to 30-pin RL78/G12 variants like the R5F102A9ASP#30.
How many UART interfaces does the R5F102A9ASP#30 support?
The R5F102A9ASP#30 supports three UART interfaces: UART0 (on P11/P12), UART1 (on P00/P01), and UART2 (on P13/P14). This is confirmed in the 30-pin block diagram (Page 13) and peripheral summary (Page 15), where UART2 is explicitly enabled for R5F102Ax devices - distinguishing it from 20/24-pin variants limited to one UART channel.
Is the R5F102A9ASP#30 pin-compatible with other RL78/G12 30-pin variants?
Yes, the R5F102A9ASP#30 shares identical pinout and electrical characteristics with other 30-pin LSSOP RL78/G12 devices including R5F102AAASP#30 and R5F103A9ASP#30 - as shown in Figure 1-4 (Page 9) and Table 1-1 (Page 4). All use PLSP0030JB-B package with 30-pin LSSOP footprint, though functional differences (e.g., data flash presence) require firmware validation.
R5F102A9ASP#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:
- 12KB (12K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 1K 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:
R5F102A9ASP#30 FAQ
1.How can I place an order for R5F102A9ASP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F102A9ASP#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 R5F102A9ASP#30 reliable?
The price and inventory of R5F102A9ASP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F102A9ASP#30 is usually 5 days.
3.What payment methods are accepted for R5F102A9ASP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F102A9ASP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F102A9ASP#30?
R5F102A9ASP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F102A9ASP#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 R5F102A9ASP#30?
For technical support, including R5F102A9ASP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F102A9ASP#30 requirements.
6.How does Aetrix verify that R5F102A9ASP#30 is sourced from the original manufacturer or authorized distributors?
All R5F102A9ASP#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 R5F102A9ASP#30 meets industry standards.
7.What is the process for return or replacement of R5F102A9ASP#30?
All R5F102A9ASP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F102A9ASP#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 R5F102A9ASP#30 part is unused and in its original packaging.
Return procedure for R5F102A9ASP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F102A9ASP#30 Tags
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