Rainbow Electronics AT89C5131 - Manual (Page 5)

5
AT89C5131
4136A–USB–03/03
Figure 2. AT89C5131 64-pin VQFP Pinout
17 18 22 21 20 19 25 24 23 26 27
62 61 60 59 58 63 57 56 55 54 53
1
2
3
4
5
6
7
8
9
10
11
48
47
46
45
44
43
42
41
40
39
38
VQFP64
64 52
12
13
28 29
36
37
51 50 49
35
33
34
14
15
16
30 31 32
P1
.1
/T
2
EX/
KI
N1
/S
S
AL
E
EA
PS
EN
P1
.7
/C
EX
4
/K
IN
7
/M
O
S
I
P1
.3
/C
EX
0
/KI
N3
P1
.5
/C
EX
2
/K
IN
5
/M
IS
O
P1
.6
/C
EX
3
/K
IN
6
/S
C
K
P2.7/A15
P2.6/A14
P4
.1
P
1
.2/E
CI
/K
IN2
P
1
.4
/CE
X
1
/K
IN4
P
1
.0
/T
2/K
IN0
PLLF
NC
XTAL2
RST
P3.7/RD/LED3
P
2
.0/A
8
P
2
.1/A
9
P
2
.2
/A
10
P2.3/A11
P2.4/A12
NC
NC
P3.0/RxD
NC
VR
E
F
P0
.0
/A
D
0
AVSS
P
3
.2
/INT
0
P3.6/WR/LED2
P3
.1
/T
x
D
P3
.3
/I
N
T
1
/LE
D
0
VSS
P
3
.4
/T
0
P3
.5
/T
1
/L
E
D
1
NC
P0.6/AD6
P0.7/AD7
P2.5/A13
P0.3/AD3
P0.5/AD5
P0.4/AD4
P0.2/AD2
P0.1/AD1
D- D+
P4
.0
XTAL1
AVDD
NC
NC
NC NC NC NC
NC
NC
NC NC
NC
VDD