Rainbow Electronics T89C5121 - Manual (Page 4)

4
A/T8xC5121
4164G–SCR–07/06
Figure 4. PLCC52 Pinout
21 22 26 25 24 23 29 28 27 30 31
5 4 3 2 1 6 52 51 50 49 48
LI C
V
CC
VSS
D V
CC
P0.1/AD1
P0.0/AD0
P0.2/AD2
P
0
.5
/A
D5
P0.6/AD6
P0.3/AD3
P
0
.4
/A
D4
P
0
.7/A
D7
P3
.6
/C
C
L
K1
/L
ED
0
P
3
.7
/CRS
T
1
/LE
D
1
XT
A
L
1
P2.7/A15
P2.6/A14
P2.5/A13
P2.4/A12
P
2
.2
/A
10
P
2
.1
/A
9
P
2
.0/A
8
P3.0/RxD
P3.1/TxD
P
1
.5
/CRS
T
P1.4/CCLK
P1.3/CC4
P1.2/CPRES
P1.1/CC8
P1.0/CIO
EA
PSEN
ALE
P
2
.3
/A
11
8
9
10
11
12
13
14
15
16
17
18
46
45
44
43
42
41
40
39
38
37
36
7 47
19
20
32 33
34
35 P3.2/INT0
P3.3/INT1/OE
RST
XT
AL
2
P3.5/CIO1/T1
P3.4/T0
V
CC
CV
S
S
V
CC
VSS
NC NC NC E
V
CC
NC NC NC NC