Микросхема AT89S8253-24JU, Микроконтроллер 8-Бит, 8051, 24МГц …

AT89S8253-24JU, Микроконтроллер 8-Бит, 8051, 24МГц …8051 Architecture Flash ISP (In-System Programmable) Microcontrollers, Atmel
Atmel offers Flash 8051 microcontrollers featuring In-System Programming (ISP) that they can be programmed with the appropriate software, either in parallel or in serial mode.