Overview
The R5F102AAASP#10 is a 16-bit microcontroller designed for low-power embedded control and cost-sensitive industrial and consumer applications.
It is widely used in home appliances, industrial sensors, and portable measurement devices, where low power consumption, stable performance, and high integration are required.
Based on the RENESAS RL78/G12 platform, this device balances performance and energy efficiency, making it suitable for long-term, always-on embedded systems.
Core Parameters
| Parameter | Specification |
|---|---|
| CPU Core | RL78 16-bit CISC |
| Operating Frequency | Up to 20 MHz |
| Flash Memory | 32 KB |
| Data Flash | 4 KB |
| RAM | 4 KB |
| Operating Voltage | 1.6 V to 5.5 V |
| Operating Temperature | -40°C to +85°C |
| Timers | 16-bit timers, watchdog timer |
| Communication Interfaces | UART, I²C, SPI |
| ADC | 10-bit A/D Converter |
| Package Type | LQFP / SSOP (varies by option) |
These parameters make the device suitable for low-power embedded control systems, especially where power consumption and voltage flexibility are critical.
Features
- Ultra-low power consumption with multiple low-power operating modes
- High integration reduces external component count
- Stable 16-bit RL78 CPU architecture
- Built-in data flash for parameter storage
- Flexible peripheral set for industrial and consumer designs
- Long product lifecycle support from RENESAS
Typical Application Scenarios
- Home appliances (washing machines, microwave controllers)
- Industrial automation sensors and actuators
- Smart meters and measurement instruments
- Portable medical and testing equipment
- General-purpose embedded control systems
Within the Renesas RL78/G12 family, the R5F10278ANA#45 is a closely related device that shares the same 16-bit RL78 core and low-power architecture. While R5F102AAASP#10 targets entry-level control designs, R5F10278ANA#45 offers expanded memory and package options, making it suitable for applications requiring greater functional flexibility.
Performance Comparison
| Feature | R5F102AAASP#10 (RL78/G12) | Typical 8-bit MCU | Cortex-M0 MCU |
|---|---|---|---|
| CPU Width | 16-bit | 8-bit | 32-bit |
| Power Efficiency | Excellent | Moderate | Good |
| Voltage Range | Wide (1.6–5.5 V) | Limited | Moderate |
| Peripheral Integration | High | Low–Medium | High |
| Cost Efficiency | High | High | Medium |
Compared with traditional 8-bit MCUs, the R5F102AAASP#10 offers higher processing efficiency and better power management, while maintaining lower cost and simpler design than many 32-bit solutions.
Conclusion
The R5F102AAASP#10 is a reliable and energy-efficient microcontroller optimized for embedded applications requiring long operating life, stable performance, and flexible voltage operation. Its balance of cost, power efficiency, and peripheral integration makes it a strong choice for industrial and consumer electronics designs.
For more information and to review our available inventory, please contact our team for detailed pricing, current stock levels, and any additional technical support you may need. View more BLOGS you may be interested as below:
Manufacturer Profile
Renesas Electronics is a global leader in microcontrollers, analog, and power semiconductor solutions. With decades of experience in embedded systems, Renesas provides long-term product support, high-quality manufacturing, and comprehensive development ecosystems for industrial, automotive, and consumer markets.
FAQ
Q1: Is R5F102AAASP#10 suitable for battery-powered devices?
Yes. Its ultra-low power modes and wide voltage range make it ideal for battery-operated designs.
Q2: Does this MCU support data storage without external EEPROM?
Yes. The built-in data flash allows parameter and configuration storage.
Q3: What development tools are available for RL78/G12?
RENESAS provides e² studio IDE, compilers, debuggers, and evaluation boards.
Q4: Is this part suitable for long-term production?
Yes. Renesas typically supports RL78 devices with long product lifecycles.
For more information and to review our available inventory, please contact our team for detailed pricing, current stock levels, and any additional technical support you may need.
You can find more component guides and application notes in our Component Technical Guides section: