8-Bit 8051 MCU, 4KB Flash, 25MHz, SPI, UART, 20QFN
8-Bit MCU, 25MHz, 4KB FLASH, 256B RAM, QFN, 1.8-5.25V
TSSOP 8b SPI/UART/USART 8051 MCU 4KB FLASH 16 I/O 3 Timer
