<p><span lang="EN-US" style="font-size: 9pt; font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">SN74ALS251</span></p> <p><span lang="EN-US" style="font-size: 9pt; font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">具有三态输出的双路 8 选 1 数据选择器/多路复用器</span></p>