Question
Download Solution PDFThe 8051 microcontroller has _____ I/O pins.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe 8051 microcontroller has:
-
4 parallel I/O ports: Port 0, Port 1, Port 2, and Port 3
-
Each port has 8 pins
So, total I/O pins = 4 x 8 = 32
🔍 Port Details:
| Port | Function | No. of Pins |
|---|---|---|
| P0 | Multiplexed I/O/Address | 8 |
| P1 | General Purpose I/O | 8 |
| P2 | I/O/High address byte | 8 |
| P3 | I/O/Special functions | 8 |
Last updated on Jun 7, 2025
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