Rainbow Electronics AT89C5131 - Manual (Page 6)

6
AT89C5131
4136A–USB–03/03
Figure 3. AT89C5131 48-pin MLF Pinout
Figure 4. AT89C5131 28-pin SO Pinout
13 14 18 17 16 15 21 20 19 22 23
46 45 44 43 42 47 41 40 39 38 37
1
2
3
4
5
6
7
8
9
10
11
36
35
34
33
32
31
30
29
28
27
26
MLF 48
48
12
24
25
P1
.1
/T
2
EX/
KI
N1
/S
S
P0.6/AD6
ALE
P0.7/AD7
EA
P
SEN
P
1
.7
/CE
X
4
/K
IN7
/MO
S
I
P
1
.3
/CE
X
0
/K
IN3
P
1
.5
/CE
X
2
/K
IN5
/MI
S
O
P1
.6
/C
EX3
/K
IN
6
/SCK
PLLF
P3.0/RxD
AVSS
P2.6/A14
XTAL1
P2.5/A13
P0.3/AD3
P0.5/AD5
P0.4/AD4
VRE
F
P0.2/AD2
P
0
.0/A
D0
P0.1/AD1
AVDD
P
3
.2
/INT
0
P3.6/WR/LED2
XTAL2
RST
P
3
.1/T
xD
P
3
.3/I
NT
1
/LE
D
0
P3.7/RD/LED3
D-
P
2
.0/A
8
P
2
.1/A
9
P
2
.2/A
1
0
P2.3/A11
VSS
P2.4/A12
P4.1
D+
P4
.0
P
1
.2
/E
CI/K
IN2
P
1
.4
/CE
X
1
/K
IN4
P3
.4
/T
0
P3
.5
/T
1
/L
E
D
1
P1.0/T2/KIN0
VDD
P2.7/A15
P1.1/T2EX/KIN1/SS
PLLF
P3.0/RxD
P1.0/T2/KIN0
AVSS
VDD
XTAL1
XTAL2
P3.2/INT0
P3.5/T1/LED1
P3.6/WR/LED2
P3.7/RD/LED3
D-
P1.4/CEX1/KIN4
VSS
D+
P1.2/ECI/KIN2
P1.3/CEX0/KIN3
P1.5/CEX2/KIN5/MISO
RST
P1.6/CEX3/KIN6/SCK
P1.7/CEX4/KIN7/MOSI
P4.0
VREF P3.1/TxD
P3.4/T0
1
2
3
4
5
6
7
8
9
10
11
12
28
27
26
25
24
23
22
21
20
19
18
17
SO28
13
14
16
15
P4.1
P3.3/INT1/LED0