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Renesas R5F102AAASP#V0
- Part No.:
- R5F102AAASP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F102AAASP#V0.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 30LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,586
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Product details
Overview
R5F102AAASP#V0 from Renesas Electronics is a 30-pin LSSOP ultra-low-power 16-bit RL78/G12 microcontroller with 16 KB code flash, 2 KB data flash, and 2 KB RAM, operating from 1.8 V to 5.5 V at up to 24 MHz (31 DMIPS), featuring 8-channel 10-bit ADC, 8-channel TAU timer, UART/CSI/I²C serial interfaces, and CRC hardware - deployed in battery-powered industrial sensor nodes and smart metering front-ends.
For engineers reviewing the R5F102AAASP#V0 datasheet, R5F102AAASP#V0 pinout, R5F102AAASP#V0 application, or R5F102AAASP#V0 equivalent, key selection considerations include its 2 KB data flash for field firmware updates, 30-pin LSSOP package with REGC regulator capacitor support, -40°C to +85°C A-grade temperature range, and integrated safety features including CRC, RAM guard, and SFR guard not present in R5F103-series alternatives.
Technical Context
The R5F102AAASP#V0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, 1 MB address space, and configurable instruction execution time (0.04167 µs at 24 MHz). Its clock system integrates high-speed on-chip oscillator (±1.0% accuracy from -20°C to +85°C), low-speed 15 kHz on-chip oscillator, and external crystal support (1–20 MHz).
Peripheral integration includes 2-channel DMA for memory-to-peripheral transfers, 8-channel TAU timer supporting PWM output (7 channels), SAU0 with 4-channel serial interface capability (UART0/CSI00/IIC00/CSI11), and dedicated hardware CRC engine - all enabled under HALT/STOP/SNOOZE low-power modes achieving 63 μA/MHz active current consumption.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space, 8×8-bit register banks |
| Operating Voltage | 1.8 V to 5.5 V - supports direct connection to Li-ion, alkaline, and USB-powered systems without external regulators |
| Flash Memory | 16 KB code flash + 2 KB data flash - enables secure self-programming and background data rewriting (BGO) |
| RAM Size | 2 KB on-chip RAM - sufficient for real-time control stacks, sensor buffering, and communication protocol handling |
| ADC Resolution | 10-bit SAR ADC with 8 input channels and internal 1.45 V reference - suitable for precision analog sensing without external references |
| Timer Resources | 8-channel 16-bit TAU timer with PWM output capability (7 channels) - supports motor control, LED dimming, and signal generation |
| Serial Interfaces | 1 UART, 1 simplified SPI (CSI), 1 simplified I²C (IIC), plus additional CSI/IIC via peripheral redirection - enables multi-sensor connectivity and tool interface |
| Power Efficiency | 63 μA/MHz active current, HALT/STOP/SNOOZE modes - extends battery life in portable and energy-harvested devices |
Pinout & Package
Package: 30-pin plastic LSSOP (7.62 mm, 0.65-mm pitch), RoHS-compliant, thermal pad not present. Requires 0.47–1 µF capacitor between REGC and VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Serial Clock Input/Output | Primary CSI/I²C clock line; configurable via PIOR for alternate functions including TI07/TO07 |
| P11/SI00/RxD0/SDA00 | Serial Data Input / UART Receive / I²C Data | Shared input for SPI slave-in, UART receive, and I²C data; supports TOOLRxD debug interface |
| P12/SO00/TxD0/TOOLTxD | Serial Data Output / UART Transmit | Primary UART transmit and SPI slave-out; doubles as debug TX channel |
| P13/TxD2/SO20/SDAA0 | Secondary UART Transmit / SPI Slave-Out / I²C Data | Enables dual-UART operation or secondary CSI/I²C bus; SDAA0 supports I²C addressable slave mode |
| P14/RxD2/SI20/SDA20 | Secondary UART Receive / SPI Slave-In / I²C Data | Supports full-duplex secondary UART or independent CSI/I²C peripheral interface |
| P20/ANI0/AVREFP | Analog Input / ADC Reference Positive | Primary analog input channel with dedicated AVREFP reference pin for ratiometric measurements |
| P21/ANI1/AVREFM | Analog Input / ADC Reference Negative | Provides differential reference pair with P20; enables true differential ADC operation |
| REGC | Voltage Regulator Capacitor Terminal | Must be connected to VSS via 0.47–1 µF capacitor; stabilizes internal LDO for analog/ADC performance |
| RESET | Active-Low Reset Input | Asynchronous reset pin with internal pull-up; accepts standard open-drain reset supervisor outputs |
| X1/X2 | Crystal Oscillator Input/Output | Supports 1–20 MHz crystal or ceramic resonator; required for precise timing in communication or measurement applications |
Key Features
| Feature | Design Value |
|---|---|
| Hardware CRC Engine | Accelerates checksum calculation for firmware integrity verification and communication packet validation |
| Data Flash with BGO | Enables concurrent program execution and non-volatile parameter storage update without halting MCU operation |
| RAM & SFR Guard | Detects unintended memory corruption during runtime - critical for functional safety in industrial control |
| Multi-Voltage I/O | Supports direct interfacing with 1.8 V, 2.5 V, and 3.3 V peripherals without level shifters |
| On-Chip Debug Interface | Fully integrated debug circuit compatible with E2 studio and CS+ IDE - no external debugger required for development |
| Low-Power Oscillator Modes | HALT (0.52 µA), STOP (0.34 µA), and SNOOZE (retains RAM/timer while CPU sleeps) extend battery life in intermittent-sensing applications |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Residential electricity/water/gas meter with pulse counting, tamper detection, and wireless upload. IC Role / Device Role / Timing Role: Main controller managing metrology ADC sampling, EEPROM logging, RS-485/LoRa communication, and secure firmware updates. Use Value: 2 KB data flash enables over-the-air parameter calibration storage; CRC engine validates firmware integrity before execution; 10-bit ADC meets Class B metrology accuracy requirements. | Use Scenario: Wireless vibration/temperature/humidity node in predictive maintenance system. IC Role / Device Role / Timing Role: Edge processor acquiring sensor data, performing FFT preprocessing, and triggering BLE/NB-IoT transmission on threshold events. Use Value: 63 μA/MHz active current and SNOOZE mode reduce average power to <10 µA; 8-channel TAU timers schedule sensor sampling and radio wake-up precisely. |
| Home Appliance Control | Medical Diagnostic Device |
Use Scenario: Washing machine main board controlling motor drive, water valves, display, and user interface. IC Role / Device Role / Timing Role: Real-time motor commutation timing, keypad scanning, buzzer feedback, and fault monitoring via ADC and GPIO. Use Value: 7 PWM-capable TAU channels drive BLDC motor phases and auxiliary loads; RAM guard prevents runaway code from corrupting control state variables. | Use Scenario: Portable blood glucose or ECG monitor requiring FDA-compliant firmware and analog signal conditioning. IC Role / Device Role / Timing Role: Signal acquisition controller with analog front-end biasing, digital filtering, secure data storage, and USB/HID interface. Use Value: Integrated 1.45 V reference and differential ADC inputs ensure stable ratiometric measurements; SFR guard protects register configuration against bit flips in radiation-prone environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F102A9ASP#V0 | Same 30-pin LSSOP package, 12 KB code flash, 2 KB data flash, 768 B RAM - reduced memory and RAM vs. R5F102AAASP#V0 | Suitable for cost-sensitive designs where 16 KB flash and 2 KB RAM are not required | Select when firmware size remains under 12 KB and buffer requirements fit within 768 B RAM |
| R5F103AAASP#V0 | No data flash, no CRC/RAM/SFR guard, ±5.0% on-chip oscillator accuracy, only 1 UART and 1 CSI - lacks safety and reliability features of R5F102AAASP#V0 | Applicable in non-critical consumer products where firmware updates and functional safety are not mandated | Choose only if data flash, hardware CRC, and memory protection are unnecessary and oscillator tolerance >±1.0% is acceptable |
Compared with R5F102A9ASP#V0, the R5F102AAASP#V0 provides 4 KB more code flash and 1.25 KB more RAM for complex algorithms and larger protocol stacks; versus R5F103AAASP#V0, it adds essential safety features (CRC, RAM/SFR guard) and reliable data retention via 2 KB data flash - making it the only option for certified industrial or medical edge devices.
Availability
R5F102AAASP#V0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and portable medical diagnostics requiring stable component supply across extended product lifecycles.
Supply support for R5F102AAASP#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 Corporation is a Japanese semiconductor manufacturer 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 functionally safe embedded applications - balancing performance, peripheral richness, and energy efficiency in compact packages.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating of the R5F102AAASP#V0?
The R5F102AAASP#V0 operates at up to 24 MHz using its high-speed on-chip oscillator, delivering 31 DMIPS performance. This is measured under HS (high-speed main) mode with VDD ≥ 2.7 V. The minimum instruction execution time is 0.04167 µs at this frequency, enabling deterministic real-time response in control loops and communication stacks.
Does the R5F102AAASP#V0 include hardware data flash, and what is its rewrite endurance?
Yes, the R5F102AAASP#V0 integrates 2 KB of on-chip data flash memory with 1,000,000 write/erase cycles (typical) and background operation (BGO) support. This allows firmware to execute from code flash while simultaneously updating calibration tables or logging data - a key capability absent in the R5F103-series alternatives.
What safety features are implemented in the R5F102AAASP#V0 that distinguish it from R5F103-series MCUs?
The R5F102AAASP#V0 includes hardware CRC calculation, RAM guard, and SFR guard - all confirmed in the RL78/G12 datasheet as exclusive to R5F102 products. These features detect memory corruption and unauthorized register access, supporting IEC 61508 SIL-2 and ISO 26262 ASIL-B compliance efforts, unlike R5F103AAASP#V0 which omits them entirely.
What is the required external component for the REGC pin on the R5F102AAASP#V0, and why is it critical?
The REGC pin on the R5F102AAASP#V0 must be connected to VSS via a 0.47 µF to 1 µF ceramic capacitor. This stabilizes the internal voltage regulator supplying the analog and ADC circuits; omitting it degrades ADC linearity, increases noise, and may cause erratic behavior in analog sensing or reference voltage generation.
How many serial communication interfaces does the R5F102AAASP#V0 support in its default pin configuration?
In its default configuration (PIOR = 00H), the R5F102AAASP#V0 supports one UART channel (UART0), one simplified SPI (CSI00), and one simplified I²C (IIC00). Additional serial capability is accessible via peripheral I/O redirection - e.g., CSI11 and IIC11 on P30/P50/P51 - enabling dual-bus sensor networks without external expanders.
R5F102AAASP#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 30-LSSOP (0.240", 6.10mm Width)
- Series:
- RL78/G12
- Packaging:
- Tray
- Product Status:
- Obsolete
- 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:
R5F102AAASP#V0 FAQ
1.How can I place an order for R5F102AAASP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F102AAASP#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 R5F102AAASP#V0 reliable?
The price and inventory of R5F102AAASP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F102AAASP#V0 is usually 5 days.
3.What payment methods are accepted for R5F102AAASP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F102AAASP#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F102AAASP#V0?
R5F102AAASP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F102AAASP#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 R5F102AAASP#V0?
For technical support, including R5F102AAASP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F102AAASP#V0 requirements.
6.How does Aetrix verify that R5F102AAASP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F102AAASP#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 R5F102AAASP#V0 meets industry standards.
7.What is the process for return or replacement of R5F102AAASP#V0?
All R5F102AAASP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F102AAASP#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 R5F102AAASP#V0 part is unused and in its original packaging.
Return procedure for R5F102AAASP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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