W79E2051ARG 8051 Core UART/USART Microcontroller, 2KB FLASH, 17 I/Os, SSOP
W79E4051ARG 8051 Core Microcontroller, 4KB FLASH, 17 I/Os, -40°C to 85°C, SSOP
Microcontroller,
W79E2051RARG 8051 Core Microcontroller, 2KB FLASH, UART/USART, SSOP
