您好，TI
当前项目中使用SN74AHC245PWR为信号缓冲，现在如果SN74AHC245PWR VCC供电关闭，但SN74AHC245PWR 输入IO仍旧保持3.3V高电平输入，竟然可以在VCC上仍旧检测到2.2V电压，表现出SN74AHC245PWR的IO口通过芯片为VCC供电了，请问这个现象是什么导致的？
↧
Channel:
放大器论坛 - 最近的话题
X
Are you the publisher?
Claim or
contact us
about this channel.
X
0
Channel Details:
- Title: 放大器论坛 - 最近的话题
- Channel Number: 62155573
- Language: Chinese
- Registered On: March 23, 2016, 12:00 am
- Number of Articles: 3845
- Latest Snapshot: May 10, 2022, 11:23 am
- RSS URL: http://www.deyisupport.com/question_answer/analog/amplifiers/f/52/rss.aspx?mode=0
- Publisher: https://e2echina.ti.com/support/amplifiers/f/amplifiers-forum
- Description:
- Catalog: //undercoater66.rssing.com/catalog.php?indx=62155573
© 2025 //www.rssing.com