AT89s52 pin diagram is as shown below.
- Pins 1-8 are port 1
- Pin 9 is RST.
- Pins 10-17 are Port 3
- Pins 18 &19 - Crystal (XTAL)
- Pin 20 - GND
- Pins 21-28 are Port 2
- Pins 32- 39 are port 0
- Pin 29 - PSEN
- Pin 30 - ALE
- Pin 31 - VPP
No comments:
Post a Comment