8-Bit 33MHz FLASH MCU, 8051 Core, VQFN, SPI/I2C/USART
8-Bit 33MHz FLASH MCU, 256B RAM, SPI/I2C/USART, VQFN
8-Bit 33MHz 8051 MCU, 8KB FLASH, I2C/SPI/USART, VQFN
8-Bit 33MHz FLASH MCU, 4KB, 256B RAM, VQFN, SPI/I2C/USART
