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| PartNumber | STM8AL31E89TAY | STM8AL31E89TAX | STM8AL31E89TCX |
| Description | 8-bit Microcontrollers - MCU Automotive 8-bit ultra-low-power MCU with 64 Kbytes Flash, LIN, RTC, data EEPROM, timers, USARTs, I2C, SPIs, ADC, DAC, COMPs, AES | 8-bit Microcontrollers - MCU Automotive 8-bit ultra-low-power MCU with 64 Kbytes Flash, LIN, RTC, data EEPROM, timers, USARTs, I2C, SPIs, ADC, DAC, COMPs, AES | 8-bit Microcontrollers - MCU Automotive 8-bit ultra-low-power MCU with 64 Kbytes Flash, LIN, RTC, data EEPROM, timers, USARTs, I2C, SPIs, ADC, DAC, COMPs, AES |
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | LQFP-64 | LQFP-64 | LQFP-64 |
| Series | STM8AL31E89 | STM8AL31E89 | STM8AL31E89 |
| Core | STM8 | STM8 | STM8 |
| Data Bus Width | 8 bit | 8 bit | 8 bit |
| Maximum Clock Frequency | 16 MHz | 16 MHz | 16 MHz |
| Program Memory Size | 64 kB | 64 kB | 64 kB |
| Data RAM Size | 4 kB | 4 kB | 4 kB |
| ADC Resolution | 12 bit | 12 bit | 12 bit |
| Number of I/Os | 54 I/O | 54 I/O | 54 I/O |
| Operating Supply Voltage | 1.65 V to 3.6 V | 1.65 V to 3.6 V | 1.65 V to 3.6 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 125 C |
| Qualification | AEC-Q100 | AEC-Q100 | AEC-Q100 |
| Product | MCU | MCU | MCU |
| Program Memory Type | Flash | Flash | Flash |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Data RAM Type | RAM | RAM | RAM |
| Data ROM Size | 2 kB | 2 kB | 2 kB |
| Data ROM Type | EEPROM | EEPROM | EEPROM |
| Interface Type | I2C, SPI, USART | I2C, SPI, USART | I2C, SPI, USART |
| Analog Supply Voltage | 1.65 V to 3.6 V, 1.8 V to 3.6 V | 1.65 V to 3.6 V, 1.8 V to 3.6 V | 1.65 V to 3.6 V, 1.8 V to 3.6 V |
| DAC Resolution | 2 x 12 bit | 2 x 12 bit | 2 x 12 bit |
| Number of ADC Channels | 28 Channel | 28 Channel | 28 Channel |
| Number of Timers/Counters | 1 x 8 bit, 4 x 16 bit | 1 x 8 bit, 4 x 16 bit | 1 x 8 bit, 4 x 16 bit |
| Processor Series | STM8AL31E8 | STM8AL31E8 | STM8AL31E8 |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 960 | 1000 | 1000 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 3.6 V | 3.6 V | 3.6 V |
| Supply Voltage Min | 1.65 V | 1.65 V | 1.65 V |
| Watchdog Timers | Watchdog Timer, Windowed | Watchdog Timer, Windowed | Watchdog Timer, Windowed |