8255A microprocessors Programmable Peripheral InterfaceSold By rowist-0
You get a 'stick' of 9 integrated circuits in this purchase. 8255 is a general purpose programmable peripheral interface. It is used with many microprocessors and microcontrollers for various purpo...Read More…
You get a 'stick' of 9 integrated circuits in this purchase.
8255 is a general purpose programmable peripheral interface. It is used with many microprocessors and microcontrollers for various purposes. The device has three 8-bit ports:
These ports can be used as input or output. These ports are further divided into two groups: A and B. Each group further has ports. Group A is comprised of port A and port C upper nibbles (pins 7, 6, 5, 4) control. Group B contains port B and port C lower nibble ( 0, 1, 2, 3).
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