Electronics Engineering · Microprocessor Interfacing
Which of the following peripheral ICs belongs to the category of special-purpose programmable IUser/Display interfaces rather than general system support peripherals?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Programmable interval timer (8253/8254)
- 2Programmable DMA controller (8257)
- 3Programmable interrupt controller (8259)
- 4Programmable keyboard and display interface (8279)✓
Correct answer
Programmable keyboard and display interface (8279)
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