8-Bit 8051 MCU, 25MHz, 4KB EPROM, I2C, UART, SOIC-14
8-Bit 8051 MCU, 25MHz, 4KB EPROM, QFN, I2C, UART, SMBus
8-bit 8051 MCU, 25MHz, 4KB EPROM, 1.8V/3V, SOIC