7490 Decade Counter
description
Transcript of 7490 Decade Counter
![Page 1: 7490 Decade Counter](https://reader030.fdocuments.us/reader030/viewer/2022012817/56813f7a550346895daa6822/html5/thumbnails/1.jpg)
7490 Decade Counter
![Page 2: 7490 Decade Counter](https://reader030.fdocuments.us/reader030/viewer/2022012817/56813f7a550346895daa6822/html5/thumbnails/2.jpg)
Basic Integrated Circuit Counter7490 Decade Counter
Clock
R9(1)
CLK A
7490
QA
QB
QC
QD
CLK B
R9(2)
R0(1)
R0(2)
14
7
6
3
2
VCC
GNDInput
5
10
1
12
9
8
11
+5V
![Page 3: 7490 Decade Counter](https://reader030.fdocuments.us/reader030/viewer/2022012817/56813f7a550346895daa6822/html5/thumbnails/3.jpg)
Modifying the count sequence
R9(1)
CLK A
7490
QA
QB
QC
QD
CLK B
R9(2)
R0(1)
R0(2)
14
7
6
3
2
VCC
GNDInput
5
10
1
12
9
8
11
+5V
![Page 4: 7490 Decade Counter](https://reader030.fdocuments.us/reader030/viewer/2022012817/56813f7a550346895daa6822/html5/thumbnails/4.jpg)
Modifying the count sequence
R9(1)
CLK A
7490
QA
QB
QC
QD
CLK B
R9(2)
R0(1)
R0(2)
14
7
6
3
2
VCC
GNDInput
5
10
1
12
9
8
11
+5V
![Page 5: 7490 Decade Counter](https://reader030.fdocuments.us/reader030/viewer/2022012817/56813f7a550346895daa6822/html5/thumbnails/5.jpg)
Modifying the count sequence
R9(1)
CLK A
7490
QA
QB
QC
QD
CLK B
R9(2)
R0(1)
R0(2)
14
7
6
3
2
VCC
GNDInput
5
10
1
12
9
8
11
+5V
![Page 6: 7490 Decade Counter](https://reader030.fdocuments.us/reader030/viewer/2022012817/56813f7a550346895daa6822/html5/thumbnails/6.jpg)
Modifying the count sequence
R9(1)
CLK A
7490
QA
QB
QC
QD
CLK B
R9(2)
R0(1)
R0(2)
14
7
6
3
2
VCC
GNDInput
5
10
1
12
9
8
11
+5V
![Page 7: 7490 Decade Counter](https://reader030.fdocuments.us/reader030/viewer/2022012817/56813f7a550346895daa6822/html5/thumbnails/7.jpg)
Modifying the count sequence
R9(1)
CLK A
7490
QA
QB
QC
QD
CLK B
R9(2)
R0(1)
R0(2)
14
7
6
3
2
VCC
GNDInput
5
10
1
12
9
8
11
+5V
![Page 8: 7490 Decade Counter](https://reader030.fdocuments.us/reader030/viewer/2022012817/56813f7a550346895daa6822/html5/thumbnails/8.jpg)
Modifying the count sequence
R9(1)
CLK A
7490
QA
QB
QC
QD
CLK B
R9(2)
R0(1)
R0(2)
14
7
6
3
2
VCC
GNDInput
5
10
1
12
9
8
11
+5V
![Page 9: 7490 Decade Counter](https://reader030.fdocuments.us/reader030/viewer/2022012817/56813f7a550346895daa6822/html5/thumbnails/9.jpg)
Modifying the count sequence
R9(1)
CLK A
7490
QA
QB
QC
QD
CLK B
R9(2)
R0(1)
R0(2)
14
7
6
3
2
VCC
GNDInput
5
10
1
12
9
8
11
+5V
![Page 10: 7490 Decade Counter](https://reader030.fdocuments.us/reader030/viewer/2022012817/56813f7a550346895daa6822/html5/thumbnails/10.jpg)
Modifying the count sequence
R9(1)
CLK A
7490
QA
QB
QC
QD
CLK B
R9(2)
R0(1)
R0(2)
14
7
6
3
2
VCC
GNDInput
5
10
1
12
9
8
11
+5V
![Page 11: 7490 Decade Counter](https://reader030.fdocuments.us/reader030/viewer/2022012817/56813f7a550346895daa6822/html5/thumbnails/11.jpg)
Modifying the count sequence
R9(1)
CLK A
7490
QA
QB
QC
QD
CLK B
R9(2)
R0(1)
R0(2)
14
7
6
3
2
VCC
GNDInput
5
10
1
12
9
8
11
+5V
![Page 12: 7490 Decade Counter](https://reader030.fdocuments.us/reader030/viewer/2022012817/56813f7a550346895daa6822/html5/thumbnails/12.jpg)
Modifying the count sequence
R9(1)
CLK A
7490
QA
QB
QC
QD
CLK B
R9(2)
R0(1)
R0(2)
14
7
6
3
2
VCC
GNDInput
5
10
1
12
9
8
11
+5V
![Page 13: 7490 Decade Counter](https://reader030.fdocuments.us/reader030/viewer/2022012817/56813f7a550346895daa6822/html5/thumbnails/13.jpg)
Modifying the count sequence
R9(1)
CLK A
7490
QA
QB
QC
QD
CLK B
R9(2)
R0(1)
R0(2)
14
7
6
3
2
VCC
GNDInput
5
10
1
12
9
8
11
+5V
![Page 14: 7490 Decade Counter](https://reader030.fdocuments.us/reader030/viewer/2022012817/56813f7a550346895daa6822/html5/thumbnails/14.jpg)
Modifying the count sequence
R9(1)
CLK A
7490
QA
QB
QC
QD
CLK B
R9(2)
R0(1)
R0(2)
14
7
6
3
2
VCC
GNDInput
5
10
1
12
9
8
11
+5V
![Page 15: 7490 Decade Counter](https://reader030.fdocuments.us/reader030/viewer/2022012817/56813f7a550346895daa6822/html5/thumbnails/15.jpg)
Modifying the count sequence
R9(1)
CLK A
7490
QA
QB
QC
QD
CLK B
R9(2)
R0(1)
R0(2)
14
7
6
3
2
VCC
GNDInput
5
10
1
12
9
8
11
+5V
![Page 16: 7490 Decade Counter](https://reader030.fdocuments.us/reader030/viewer/2022012817/56813f7a550346895daa6822/html5/thumbnails/16.jpg)
Modifying the count sequence
R9(1)
CLK A
7490
QA
QB
QC
QD
CLK B
R9(2)
R0(1)
R0(2)
14
7
6
3
2
VCC
GNDInput
5
10
1
12
9
8
11
+5V
![Page 17: 7490 Decade Counter](https://reader030.fdocuments.us/reader030/viewer/2022012817/56813f7a550346895daa6822/html5/thumbnails/17.jpg)
Cascading Stages
R9(1)
CLK A
7490
QA
QB
QC
QD
CLK B
R9(2)
R0(1)
R0(2)
14
7
6
3
2
VCC
GNDInput
5
10
1
12
9
8
11
+5V
R9(1)
CLK A
7490
QA
QB
QC
QD
CLK B
R9(2)
R0(1)
R0(2)
14
7
6
3
2
VCC
GNDInput
5
10
1
12
9
8
11
+5V
SECONDS(One’s Digit)
SECONDS(Ten’s Digit)
![Page 18: 7490 Decade Counter](https://reader030.fdocuments.us/reader030/viewer/2022012817/56813f7a550346895daa6822/html5/thumbnails/18.jpg)
Cascading Stages
R9(1)
CLK A
7490
QA
QB
QC
QD
CLK B
R9(2)
R0(1)
R0(2)
14
7
6
3
2
VCC
GNDInput
5
10
1
12
9
8
11
+5V
R9(1)
CLK A
7490
QA
QB
QC
QD
CLK B
R9(2)
R0(1)
R0(2)
14
7
6
3
2
VCC
GNDInput
5
10
1
12
9
8
11
+5V
SECONDS(One’s Digit)
SECONDS(Ten’s Digit)
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