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The knowledge sharing point
74 series
![](https://romux.com/_files/image/layout/pic9.jpg)
![](https://romux.com/_files/image/layout/pic22.jpg)
TTL ICs: 7400...7449
![](https://romux.com/_files/image/layout/pic17.jpg)
TTL ICs: 74100...74149
![](https://romux.com/_files/image/layout/pic8.jpg)
TTL ICs: 741000...743999
![](https://romux.com/_files/image/layout/pic7.jpg)
TTL ICs: 74150...74199
![](https://romux.com/_files/image/layout/pic14.jpg)
TTL ICs: 74200...74299
![](https://romux.com/_files/image/layout/pic1.jpg)
TTL ICs: 74300...74399
![](https://romux.com/_files/image/layout/pic21.jpg)
TTL ICs: 74400...74499
![](https://romux.com/_files/image/layout/pic6.jpg)
TTL ICs: 744000...744999
![](https://romux.com/_files/image/layout/pic17.jpg)
TTL ICs: 7450...7499
![](https://romux.com/_files/image/layout/pic12.jpg)
TTL ICs: 74500...74599
![](https://romux.com/_files/image/layout/pic9.jpg)
TTL ICs: 74600...74699
![](https://romux.com/_files/image/layout/pic11.jpg)
TTL ICs: 74700...74799
![](https://romux.com/_files/image/layout/pic18.jpg)
TTL ICs: 74800...74899
![](https://romux.com/_files/image/layout/pic22.jpg)
TTL ICs: 74900...74999
![](https://romux.com/_files/image/layout/pic23.jpg)