W79E4051RASG 8051 Microcontroller, 4KB FLASH, UART, USART, SOIC-28
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8-bit Microcontroller with an in-system programmable flash
W79E2051RASG 8051 Microcontroller, 2KB FLASH, 17 I/Os, UART, USART, SOIC
W79E4051RAKG 8051 Microcontroller, 4KB FLASH, 17 I/Os, DIP Package
