3
AT89C51CC03
4182i–can–06/05
管脚 配置
PLCC44
p1.3/an3/cex0
p1.2/an2/eci
p1.1/an1/t2ex
p1.0/一个 0/t2
VAREF
VAGND
重置
VSS
VCC
XTAL1
XTAL2
p3.7/rd
p4.0/ txdc
p4.1/rxdc
p2.7/a15
p2.6/a14
p2.5/a13
p2.4/a12
p2.3/a11
p2.2/a10
p2.1/a9
p3.6/wr
39
38
37
36
35
34
33
32
29
30
31
7
8
9
10
11
12
13
14
17
16
15
18
19
20
21
22
23
24
25
26
27
28
6
5
4
3
2
44
43
42
41
40
ALE
PSEN
p0.7/ad7
p0.6/ad6
p0.5/ad5
p0.2/ad2
p0.3/ad3
p0.4/ad4
p0.1/ad1
p0.0/ad0
p2.0/a8
p1.4/an4/cex1
p1.5/an5/cex2
p1.6/an6/cex3
p1.7/an7/cex4
EA
p3.0/rxd
p3.1/txd
p3.2/int0
p3.3/int1
p3.4/t0
p3.5/t1
1
43 42 41 40 3944
38 37 36 35 34
12 13 17161514 201918 21 22
33
32
31
30
29
28
27
26
25
24
23
VQFP44
1
2
3
4
5
6
7
8
9
10
11
p1.4/an4/cex1
p1.5/an5/cex2
p1.6/an6/cex3
p1.7/an7/cex4
EA
p3.0/rxd
p3.1/txd
p3.2/int0
p3.3/int1
p3.4/t0
p3.5/t1
ALE
PSEN
p0.7/ad7
p0.6/ad6
p0.5/ad5
p0.2 /ad2
p0.3 /ad3
p0.4 /ad4
p0.1 /ad1
p0.0 /ad0
p2.0/a8
p1.3/an3/cex0
p1.2/an2/eci
p1.1/an1/t2ex
p1.0/一个 0/t2
VAREF
VAGND
重置
VSS
VCC
XTAL1
XTAL2
p3.7/rd
p4.0/txdc
p4.1/rxdc
p2.7/a15
p2.6/a14
p2.5/a13
p2.4/a12
p2.3/a11
p2.2/a10
p2.1/a9
p3.6/wr