80C51 MCU 4KB FLASH 18MHz 8b I2C UART TSSOP
8-bit MCU, 8KB Flash, 18MHz, I2C, UART, TSSOP
IC 80C51 MCU FLASH 8K 28-TSSOP
IC 80C51 MCU FLASH 8K 20-TSSOP
MCU 8-bit P89 80C51 CISC 4KB Flash 2.5V/3.3V 20-Pin TSSOP