74ls48引脚图及功用介绍
74LS48芯片是一种常用的七段数码管译码器驱动器,常用在各种数字电路和单片机体系的显现体系中,下面电工之家就给咱们介绍一下这个元件的一些参数与运用技能等资料。
74ls48引脚图
74ls48功用表—七段译码驱动器功用表 | ||||||||||||
十进数 或功用 | 输入 | BI/RBO | 输出 | 补白 | ||||||||
LT | RBI | D C B A | a | b | c | d | e | f | g | |||
0 | H | H | 0 0 0 0 | H | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 |
1 | H | x | 0 0 0 1 | H | 0 | 1 | 1 | 0 | 0 | 0 | 0 | |
2 | H | x | 0 0 1 0 | H | 1 | 1 | 0 | 1 | 1 | 0 | 1 | |
3 | H | x | 0 0 1 1 | H | 1 | 1 | 1 | 1 | 0 | 0 | 1 | |
4 | H | x | 0 1 0 0 | H | 0 | 1 | 1 | 0 | 0 | 1 | 1 | |
5 | H | x | 0 1 0 1 | H | 1 | 0 | 1 | 1 | 0 | 1 | 1 | |
6 | H | x | 0 1 1 0 | H | 0 | 0 | 1 | 1 | 1 | 1 | 1 | |
7 | H | x | 0 1 1 1 | H | 1 | 1 | 1 | 0 | 0 | 0 | 0 | |
8 | H | x | 1 0 0 0 | H | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
9 | H | x | 1 0 0 1 | H | 1 | 1 | 1 | 0 | 0 | 1 | 1 | |
10 | H | x | 1 0 1 0 | H | 0 | 0 | 0 | 1 | 1 | 0 | 1 | |
11 | H | x | 1 0 1 1 | H | 0 | 0 | 1 | 1 | 0 | 0 | 1 | |
12 | H | x | 1 1 0 0 | H | 0 | 1 | 0 | 0 | 0 | 1 | 1 | |
13 | H | x | 1 1 0 1 | H | 1 | 0 | 0 | 1 | 0 | 1 | 1 | |
14 | H | x | 1 1 1 0 | H | 0 | 0 | 0 | 1 | 1 | 1 | 1 | |
15 | H | x | 1 1 1 1 | H | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
BI | x | x | x x x x | L | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
RBI | H | L | 0 0 0 0 | L | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
LT | L | x | x x x x | H | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 4 |
上一篇:并联电容器往常巡视查看内容
下一篇:pnp三极管驱动蜂鸣器电路原理
相关推荐