8255 IC Lecture by Ms. Purva Agarwal

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This topic s related with the subject microprocessor & micro controller. 8255 is known as the programmable peripheral interface use to taking extra input & outputs. It is 40 pin IC & have 24 pins for input & output peripheral. It work in various modes that’s simple i/o mode, i/o with hand shaking, bidirectional i/o with handshaking.

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