[电子发烧友杯]

数码管数字逻辑门显示电路

吴泽

2019-6-2 20:58:47 2254

本帖最后由乐乐leles 于 2019-6-5 10:54 编辑

数码管数字显示电路

数码管引脚图

（每个数码管+5v共阳极端要接一个200-1K电阻用于限流，否则会烧坏数码管。）

真值表

十进制	二进制输入			Y输出
十进制	A	B	C	a	b	c	d	e	f	g	h
0	0	0	0	0	0	0	0	0	0	1	x
1	0	0	1	1	0	0	1	1	1	1	x
2	0	1	0	0	0	1	0	0	1	0	x
3	0	1	1	0	0	0	0	1	1	0	x
4	1	0	0	1	0	0	1	1	0	0	x
5	1	0	1	0	1	0	0	1	0	0	x
6	1	1	0	0	1	0	0	0	0	0	x
7	1	1	1	0	0	0	1	1	1	1	x

逻辑函数

file:///C:/Users/ASUS/AppData/Local/Temp/msohtmlclip1/01/clip_image001.giffile:///C:/Users/ASUS/AppData/Local/Temp/msohtmlclip1/01/clip_image002.giffile:///C:/Users/ASUS/AppData/Local/Temp/msohtmlclip1/01/clip_image003.giffile:///C:/Users/ASUS/AppData/Local/Temp/msohtmlclip1/01/clip_image002.gifYa=A’B’C+A’B’C

AB C	0 0	0 1	1 1	1 0

0				1

1	1

file:///C:/Users/ASUS/AppData/Local/Temp/msohtmlclip1/01/clip_image004.giffile:///C:/Users/ASUS/AppData/Local/Temp/msohtmlclip1/01/clip_image005.gifYb=A B C’+A B’C

AB C	0 0	0 1	1 1	1 0

0			1

1				1

file:///C:/Users/ASUS/AppData/Local/Temp/msohtmlclip1/01/clip_image006.giffile:///C:/Users/ASUS/AppData/Local/Temp/msohtmlclip1/01/clip_image007.gifYc =A’B C’

AB C	0 0	0 1	1 1	1 0

0		1

1

file:///C:/Users/ASUS/AppData/Local/Temp/msohtmlclip1/01/clip_image008.giffile:///C:/Users/ASUS/AppData/Local/Temp/msohtmlclip1/01/clip_image009.giffile:///C:/Users/ASUS/AppData/Local/Temp/msohtmlclip1/01/clip_image010.giffile:///C:/Users/ASUS/AppData/Local/Temp/msohtmlclip1/01/clip_image011.gifYd=A B’C’+ABC+A’B’C

AB C	0 0	0 1	1 1	1 0

0				1

1	1		1

file:///C:/Users/ASUS/AppData/Local/Temp/msohtmlclip1/01/clip_image012.gifYe=A B’ +C

AB C	0 0	0 1	1 1	1 0

0				1

1	1	1	1	1

file:///C:/Users/ASUS/AppData/Local/Temp/msohtmlclip1/01/clip_image013.gifYf =A’B +C

AB C	0 0	0 1	1 1	1 0

0		1

1	1	1	1

file:///C:/Users/ASUS/AppData/Local/Temp/msohtmlclip1/01/clip_image014.giffile:///C:/Users/ASUS/AppData/Local/Temp/msohtmlclip1/01/clip_image015.gifYg =A ’B’+ABC