Accredited calibration behind the small qualified label : https://training.eeworld.com.cn/course/4679In response to these certification issues that often cause misunderstandings, we hope that through
TTL and CMOS1. TTL level : output high level 2.4V, output low level 0.4V . At room temperature, the general output high level is 3.5V , and the output low level is 0.2V . Minimum input high level and