USARTS, Datasheet(PDF) - STM8AL31E8X

Manufacturer	Part #	Datasheet	Description
STMicroelectronics	STM8AL31E8X	2Mb/133P	Automotive 8-bit ultra-low-power MCU, 64 KB Flash, EEPROM, RTC, AES, LCD, timers, USARTs, I2C, SPIs, ADC, DAC, COMPs
	STM8L152R6T6	1Mb/129P	8-bit ultralow power MCU, up to 64 KB Flash + 2 KB data EEPROM, RTC, LCD, timers, USARTs, I2C, SPIs, ADC, DAC, comparators
	STM8L152C8T6	1Mb/134P	8-bit ultralow power MCU, up to 64 KB Flash + 2 KB data EEPROM, RTC, LCD, timers, USARTs, I2C, SPIs, ADC, DAC, comparators
	STM8AL318X	2Mb/131P	Automotive 8-bit ultra-low-power MCU, 64 Kbyte Flash, RTC, LCD, data EEPROM, timers, USARTs, I2C, SPIs, ADC, DAC, COMPs
	STM8L151X6	3Mb/147P	8-bit ultra-low-power MCU, up to 64-KB Flash, 2-KB data EEPROM, RTC, LCD, timers, USARTs, I2C, SPIs, ADC, DAC, comparators May 2018
	STM8L151C8T6	1Mb/129P	8-bit ultralow power MCU, up to 64 KB Flash + 2 KB data EEPROM, RTC, LCD, timers, USARTs, I2C, SPIs, ADC, DAC, comparators
	STM8L152M8T6	1Mb/134P	8-bit ultralow power MCU, up to 64 KB Flash + 2 KB data EEPROM, RTC, LCD, timers, USARTs, I2C, SPIs, ADC, DAC, comparators July 2013 Rev 6

USARTS, Datasheet, PDF