Overview
The STM8AL3L8ATCY is a high-density, ultra-low-power 8-bit microcontroller from STMicroelectronics, designed specifically for automotive applications. It features an enhanced STM8 CPU core, providing increased processing power of up to 16 MIPS at 16 MHz, while maintaining the advantages of a CISC architecture with improved code density and a 24-bit linear addressing space. The device is optimized for low-power operations and includes an integrated debug module with a hardware interface (SWIM) for non-intrusive in-application debugging and ultrafast Flash programming.
Key Specifications
| Parameter | Specification |
|---|---|
| Processor Core | Enhanced STM8 CPU core |
| Processing Power | Up to 16 MIPS at 16 MHz |
| Memory | Up to 64 Kbytes of Flash, up to 2 Kbytes of data EEPROM, up to 4 Kbytes of RAM |
| Operating Voltage | 1.8 V to 3.6 V (down to 1.65 V at power down) |
| Operating Temperature | -40 to 85 or 125 °C |
| Low-Power Modes | 5 modes: Wait, Low-power run, Low-power wait, Active-halt with full RTC, Halt |
| Current Consumption | 200 µA/MHz + 330 µA |
| ADC | 12-bit, up to 1 Msps, 28 channels |
| DAC | 2x12-bit, dual mode with output buffer |
| Timers | Four 16-bit timers, one 8-bit timer |
| Communication Interfaces | Two SPIs, one I2C, three USARTs |
| LCD | 8x40 or 4x44 segments with step-up converter |
| Package | LQFP 80 14x14x1.4 mm |
Key Features
- Advanced STM8 core with Harvard architecture and 3-stage pipeline
- Integrated debug module with SWIM interface for non-intrusive debugging
- Embedded data EEPROM and low-power low-voltage single-supply program Flash memory
- Extensive range of enhanced I/Os and peripherals, including 12-bit ADC, two DACs, two comparators, and real-time clock
- Support for LCD display (8x40 or 4x44 segments)
- Four 16-bit timers, one 16-bit advanced control timer, and one 8-bit timer
- Standard communication interfaces: two SPIs, one I2C, and three USARTs
- Low-power features including five low-power modes and ultra-low leakage per I/O
- Advanced anti-tamper detection and DMA capabilities
Applications
The STM8AL3L8ATCY is particularly suited for automotive applications where power efficiency and reliability are critical. It is ideal for functions such as remote keyless entry, tire pressure monitoring, companion microcontrollers, immobilizers, and various sensors. The device's low power consumption and advanced features make it a versatile choice for battery-operated and power-critical applications.
Q & A
- What is the processing power of the STM8AL3L8ATCY? The STM8AL3L8ATCY has a processing power of up to 16 MIPS at 16 MHz.
- What are the operating voltage and temperature ranges of the STM8AL3L8ATCY? The operating voltage range is 1.8 V to 3.6 V (down to 1.65 V at power down), and the operating temperature range is -40 to 85 or 125 °C.
- What low-power modes are available on the STM8AL3L8ATCY? The device features five low-power modes: Wait, Low-power run, Low-power wait, Active-halt with full RTC, and Halt.
- What are the key peripherals included in the STM8AL3L8ATCY? Key peripherals include a 12-bit ADC, two DACs, two comparators, a real-time clock, LCD display, and standard communication interfaces such as SPI, I2C, and USARTs.
- Is the STM8AL3L8ATCY suitable for automotive applications? Yes, it is specifically designed for automotive applications, meeting AEC-Q100 grade 1 qualifications.
- What is the memory configuration of the STM8AL3L8ATCY? The device has up to 64 Kbytes of Flash, up to 2 Kbytes of data EEPROM, and up to 4 Kbytes of RAM.
- Does the STM8AL3L8ATCY support DMA? Yes, it supports DMA with four channels for ADC, DACs, SPIs, I2C, USARTs, timers, and one channel for memory-to-memory transfers.
- What is the package type of the STM8AL3L8ATCY? The device is available in an LQFP 80 14x14x1.4 mm package.
- Does the STM8AL3L8ATCY have any anti-tamper features? Yes, it includes advanced anti-tamper detection.
- How many communication interfaces does the STM8AL3L8ATCY have? The device has two SPIs, one I2C interface, and three USARTs.
