1
1
2
2
3
3
4
4
D D
C C
B B
A A
Title
Number RevisionSize
A4
Date: 2021/7/18 Sheet of
File: E:\电路城\步进电机（4，正反转停止）\原理图\Sheet1.SchDocDrawn By:
P1.0
1
P1.1
2
P1.2
3
P1.3
4
P1.4
5
P1.5
6
P1.6
7
P1.7
8
RST
9
P3.0/RXD
10
P3.1/TXD
11
P3.2/INT0
12
P3.3/INT1
13
P3.4/T0
14
P3.5/T1
15
P3.6/WR
16
P3.7/RD
17
XTAL2
18
XTAL1
19
GND
20
P2.0
21
P2.1
22
P2.2
23
P2.3
24
P2.4
25
P2.5
26
P2.6
27
P2.7
28
PSEN
29
ALE/PROG
30
EA
31
P0.7
32
P0.6
33
P0.5
34
P0.4
35
P0.3
36
P0.2
37
P0.1
38
P0.0
39
VCC
40
U1
80511 2
Y1
XTAL
30pF
C2
Cap
10uF
C1
Cap Pol1
30pF
C3
Cap
10K
R1
Res2
GND
VCC
S1
SW-PB
S2
SW-PB
S3
SW-PB
S4
SW-PB
S6
SW-PB
S7
SW-PB
S8
SW-PB
S10
SW-PB
S11
SW-PB
S12
SW-PB
S14
SW-PB
S15
SW-PB
S16
SW-PB
P30
P31
P32
P33
P34
P35
P36
P37
P10
P11
P12
P13
P14
P15
P16
P17
Vin Vout
GND
7805
Volt Reg
0.1uF
C5
Cap
100uF
C4
Cap Pol1
0.1uF
C7
Cap
100uF
C6
Cap Pol1
1
2
P1
电源接口
GND
VCC
P10
P11
P12
P13
P14
P15
P16
1B
1
2B
2
3B
3
4B
4
5B
5
6B
6
7B
7
1C
16
2C
15
3C
14
4C
13
5C
12
6C
11
7C
10
COM
9
U2
ULN2003
M
B1
Motor Step
VCC
1B
1
2B
2
3B
3
4B
4
5B
5
6B
6
7B
7
1C
16
2C
15
3C
14
4C
13
5C
12
6C
11
7C
10
COM
9
U3
ULN2003
M
B2
Motor Step
VCC
1B
1
2B
2
3B
3
4B
4
5B
5
6B
6
7B
7
1C
16
2C
15
3C
14
4C
13
5C
12
6C
11
7C
10
COM
9
U4
ULN2003
M
B3
Motor Step
VCC
1B
1
2B
2
3B
3
4B
4
5B
5
6B
6
7B
7
1C
16
2C
15
3C
14
4C
13
5C
12
6C
11
7C
10
COM
9
U5
ULN2003
M
B4
Motor Step
VCC
P27
P26
P25
P24
P23
P22
P21
P20
P27
P26
P25
P24
P23
P22
P21
P20
P30
P31
P32
P33
P34
P35
P36
P37
PI001
PI002
PI003
PI004
PI005
PI006
PI007
PI009
PI0010
PI0011
PI0012
PI0013
PI0014
PI0015
PI0016
CO
PI001
PI002
PI003
PI004
PI005
PI006
PI007
PI009
PI0010
PI0011
PI0012
PI0013
PI0014
PI0015
PI0016
PI001
PI002
PI003
PI004
PI005
PI006
PI007
PI009
PI0010
PI0011
PI0012
PI0013
PI0014
PI0015
PI0016
PI001
PI002
PI003
PI004
PI005
PI006
PI007
PI009
PI0010
PI0011
PI0012
PI0013
PI0014
PI0015
PI0016
PI780501
PI780502
PI780503
PIB?01
PIB?02
PIB?03
PIB?04
PIB?05
PIB?06
PIB?01
PIB?02
PIB?03
PIB?04
PIB?05
PIB?06
PIB?01
PIB?02
PIB?03
PIB?04
PIB?05
PIB?06
PIB?01
PIB?02
PIB?03
PIB?04
PIB?05
PIB?06
PIC101
PIC102
PIC201
PIC202
PIC301
PIC302
PIC401
PIC402 PIC501
PIC502 PIC601
PIC602 PIC701
PIC702
PIP101
PIP102
PIR101
PIR102
PIS101
PIS102
PIS201 PIS202 PIS301 PIS302 PIS401 PIS402
PIS601 PIS602 PIS701 PIS702 PIS801 PIS802
PIS1001 PIS1002 PIS1101 PIS1102 PIS1201 PIS1202
PIS1401 PIS1402 PIS1501 PIS1502 PIS1601 PIS1602
PIU?01
PIU?02
PIU?03
PIU?04
PIU?05
PIU?06
PIU?07
PIU?08
PIU?09
PIU?010
PIU?011
PIU?012
PIU?013
PIU?014
PIU?015
PIU?016
PIU?017
PIU?018
PIU?019
PIU?020
PIU?021
PIU?022
PIU?023
PIU?024
PIU?025
PIU?026
PIU?027
PIU?028
PIU?029
PIU?030
PIU?031
PIU?032
PIU?033
PIU?034
PIU?035
PIU?036
PIU?037
PIU?038
PIU?039
PIU?040
PIY101
PIY102
PI780502
PIC201
PIC301
PIC402 PIC501 PIC602 PIC701
PIP101
PIR101
PIU?020
PI780501
PIC401 PIC502
PIP102
PI001
PI002
PI003
PI004
PI005
PI006
PI007
PI0010
PI0011
PI0012
PI0013
PIB?06
PI0014
PIB?04
PI0015
PIB?03
PI0016
PIB?01
PIC102
PIR102
PIS101
PIU?09
PIC202
PIU?018
PIY101
PIC302
PIU?019
PIY102
PIU?029
PIU?030
PIU?032
PIU?033
PIU?034
PIU?035
PIU?036
PIU?037
PIU?038
PIU?039
PIS202 PIS302 PIS402
PIU?01
NL
PIS602 PIS702 PIS802
PIU?02
NL
PIS1002 PIS1102 PIS1202
PIU?03
NL
PIS1402 PIS1502 PIS1602
PIU?04
NL
PIS201
PIS601
PIS1001
PIS1401
PIU?05
NL
PIS301
PIS701
PIS1101
PIS1501
PIU?06
NL
PIS401
PIS801
PIS1201
PIS1601
PIU?07
NL
PIU?08
PIU?021
NL
PIU?022
NL
PIU?023
NL
PIU?024
NL
PIU?025
NL
PIU?026
NL
PIU?027
NL
PIU?028
NL
PIU?010
NL
PIU?011
NL
PIU?012
NL
PIU?013
NL
PIU?014
NL
PIU?015
NL
PIU?016
NL
PIU?017
NL
PI009
PI780503
PIB?02
PIB?05
PIC101
PIC601 PIC702
PIS102
PIU?031
PIU?040
