STMicroelectronics STM8AL3L66TCY
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $5.11 | $5.11 |
| 15+ | $3.36 | $50.40 |
| 25+ | $3.29 | $82.25 |
| 50+ | $3.10 | $155.00 |
| 100+ | $2.74 | $274.00 |
| N+ | $0.55 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | STMicroelectronics |
| Product Series | STM8A |
| Packaging | Tray | |
| Core Processor | STM8A |
| Core Size | 8-Bit |
| Speed | 16MHz |
| Connectivity | I2C, IrDA, LINbus, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Number of I/O | 29 |
| Program Memory Size | 32KB (32K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | 1K x 8 |
| RAM Size | 2K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.65V ~ 3.6V |
| Data Converters | A/D 21x12b; D/A 1x12b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Grade | Automotive |
| Qualification AEC | AEC-Q100 |
| Mounting Type | Surface Mount |
| Supplier Device Package | 32-LQFP (7x7) |
| Package / Case | 32-LQFP |
| ROHS |
The STM8AL3L66TCY from STMicroelectronics is a low-power 8-bit MCU built on the STM8A core. It operates at up to 16MHz with 32KB flash and 2KB RAM, supporting 1.65V to 3.6V supplies. The 32-LQFP package includes DMA, PWM, and robust reset features, making it suitable for automotive and industrial applications.
- Ultra-low voltage operation (1.65V) – enables direct battery operation without boost converters.
- Extended temperature range (-40°C to 125°C) – reliable in automotive and industrial environments.
- Integrated DMA and PWM – reduces CPU load for real-time control loops.
- Compact 32-LQFP package – saves board space for space-constrained designs.
Battery-Powered Industrial Sensors
With a 1.65V minimum supply and low-power STM8A core, this MCU extends battery life in remote monitoring nodes.
Automotive Body Electronics
Rated for -40°C to 125°C, it handles harsh under-hood environments for lighting or window control modules.
Portable Medical Devices
The 16MHz core and 32KB flash enable compact firmware for glucose meters or pulse oximeters.
Smart Building Controllers
DMA and PWM support efficient HVAC actuator control while maintaining low quiescent current.
Industrial Actuator Drivers
Integrated WDT and brown-out reset ensure fail-safe operation in motorized valve systems.
Wearable Health Trackers
Small 32-LQFP footprint and 2KB RAM fit constrained designs for continuous vital-sign logging.
- Q: What is the operating voltage range?
- A: 1.65V to 3.6V, suitable for battery-powered applications.
- Q: What is the maximum clock speed?
- A: 16MHz, providing balanced performance for low-power MCU tasks.
- Q: What package is available?
- A: 32-LQFP, ideal for compact PCB designs.
- Q: Does it include DMA and PWM?
- A: Yes, it features DMA, PWM, plus POR, WDT, and brown-out detection.
- Q: What is the operating voltage range?
- A: 1.65V to 3.6V, suitable for battery-powered applications.
- Q: What is the maximum clock speed?
- A: 16MHz, providing balanced performance for low-power MCU tasks.
- Q: What package is available?
- A: 32-LQFP, ideal for compact PCB designs.
- Q: Does it include DMA and PWM?
- A: Yes, it features DMA, PWM, plus POR, WDT, and brown-out detection.

STM8AL3L66TCY.pdf