80C51 MCU 4KB OTP 8b 20MHz I2C UART SOIC
8-bit 80C51 MCU, 20MHz, 4KB OTP, I2C, UART, 18 I/O, SOP20
8-bit MCU, 80C51, 4KB EPROM, 20MHz, I2C, UART, 5V, SOIC
8-Bit MCU 2KB OTP 20MHz I2C UART 18 I/O SO 20SOIC
80C51 MCU 8-bit 20MHz 4KB OTP 18 I/O 20-SOIC
