80C51 MCU 4KB OTP 8b 20MHz I2C UART 5V TSSOP
8-bit MCU, 80C51, 4KB EPROM, 20MHz, 5V, I2C, UART, TSSOP
8-bit MCU, 80C51, 4KB EPROM, 20MHz, I2C, UART, 5V, SOIC
8-bit 80C51 CISC MCU, 2KB EPROM, 20-Pin TSSOP, 20MHz