By:
Masud-ul-Hasan
6
8051 Pin
Outs
VSS
VCC
RST
P0.7
P0.6
P0.5
P0.4
P0.3
P0.2
P0.1
P0.0
P
O
R
T
0
ADDRESS
AND
DATA BUS
XTAL1
XTAL2
ALE
EA
PSEN
P3.7
P3.6
P3.5
P3.4
P3.3
P3.2
P3.1
P3.0
RD
WR
T1
T0
INT1
INT0
TxD
RxD
SECONDARY
FUNCTIONS
P
O
R
T
3
P2.7
P2.6
P2.5
P2.4
P2.3
P2.2
P2.1
P2.0
P
O
R
T
2
ADDRESS
BUS
P1.7
P1.6
P1.5
P1.4
P1.3
P1.2
P1.1
P1.0
P
O
R
T
1
