Overview
The STM8AL3189TCY is an ultra-low-power 8-bit microcontroller from STMicroelectronics, designed specifically for automotive applications. It emphasizes green energy, application safety, and power efficiency, making it ideal for battery-operated functions such as remote keyless entry, tire pressure monitoring, and other applications where power consumption is critical over time.
This microcontroller is part of the STM8AL series, which builds on the STM8A embedded features to reduce system cost and enhance reliability. It supports LIN communications and offers advanced features to improve computation performance, save power consumption, and optimize memory usage.
Key Specifications
| Parameter | Specification |
|---|---|
| Flash Memory | Up to 64 Kbytes |
| Data EEPROM | Up to 2 Kbytes with ECC and RWW |
| RAM | Up to 4 Kbytes |
| 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 | Wait, Low-power run (5.9 µA), Low-power wait (3 µA), Active-halt with full RTC (1.4 µA), Halt (400 nA) |
| Maximum Frequency | 16 MHz |
| ADC | 12-bit up to 1 Msps / 28 channels |
| DAC | 2x12-bit with output buffer |
| Comparators | 2 ultra-low-power comparators |
| RTC | Low-power RTC with BCD calendar and alarm interrupt |
| LCD | 8x40 or 4x44 segments with step-up converter |
| Communication Interfaces | SPI, Fast I2C 400 kHz SMBus and PMBus, Three USARTs (IrDA, LIN 1.3, LIN2.0) |
| I/Os | Up to 67 I/Os, all mappable on interrupt vectors |
Key Features
- Advanced STM8 Core: Harvard architecture and 3-stage pipeline, providing up to 16 CISC MIPS peak performance.
- Low-Power Modes: Five low-power modes including Wait, Low-power run, Low-power wait, Active-halt with full RTC, and Halt.
- Peripheral Set: Includes 12-bit ADC, 12-bit DACs, ultra-low-power comparators, real-time clock, DMA, and LCD driver.
- Communication Interfaces: SPI, Fast I2C, SMBus, PMBus, and three USARTs supporting IrDA, LIN 1.3, and LIN2.0.
- Memory: Up to 64 Kbytes of Flash, up to 2 Kbytes of data EEPROM with ECC and RWW, and up to 4 Kbytes of RAM.
- Security and Safety: Advanced anti-tamper detection, low power BOR reset with 5 programmable thresholds, and ultra-low-power POR/PDR.
Applications
- Automotive Systems: Ideal for battery-operated functions such as remote keyless entry, tire pressure monitoring, and immobilizers.
- Sensors and Actuators: Suitable for applications requiring low power consumption and high reliability.
- Companion Microcontrollers: Can be used as companion microcontrollers in various automotive systems.
- Motor Control: Supports motor control with the advanced control timer.
Q & A
- What is the primary application area of the STM8AL3189TCY microcontroller?
The STM8AL3189TCY is primarily designed for automotive applications, focusing on battery-operated functions and low-power consumption.
- What are the key low-power modes available in the STM8AL3189TCY?
The microcontroller features five low-power modes: Wait, Low-power run, Low-power wait, Active-halt with full RTC, and Halt.
- What is the maximum frequency of the STM8AL3189TCY?
The maximum frequency is 16 MHz.
- What types of communication interfaces does the STM8AL3189TCY support?
The microcontroller supports SPI, Fast I2C 400 kHz SMBus and PMBus, and three USARTs (IrDA, LIN 1.3, LIN2.0).
- How much Flash memory does the STM8AL3189TCY have?
The microcontroller has up to 64 Kbytes of Flash memory.
- What is the operating voltage range of the STM8AL3189TCY?
The operating voltage range is 1.8 V to 3.6 V (down to 1.65 V at power down).
- Does the STM8AL3189TCY have any advanced security features?
Yes, it includes advanced anti-tamper detection and low power BOR reset with 5 programmable thresholds.
- What types of timers are available in the STM8AL3189TCY?
The microcontroller includes three 16-bit timers, one 16-bit advanced control timer, and one 8-bit timer.
- Is the STM8AL3189TCY AEC-Q100 qualified?
Yes, the STM8AL3189TCY is AEC-Q100 grade 1 qualified.
- What is the purpose of the LCD driver in the STM8AL3189TCY?
The LCD driver supports 8x40 or 4x44 segments with a step-up converter.
