HC04的丝印对应什么型号

附件的照片会更加清晰，希望能尽快得到帮助！谢谢！

您给型号也不对，您给的型号的封装是SO，我的器件的封装是SOIC的，器件是8.7mm*3.9mm的。

The first line/row of the package marking is the Year Month (YM) date code.

The device names on the package can found at this web page: http://focus.ti.com/general/docs/partmarking/partmarkinghome.jsp
after entering the part number and selecting the "Device" button

Also see the package marking information at the web folder for the respective part found in the "Sample & Buy" table under the "Top Side Marking" column.

顶端标识为HC04的器件为SN74HC04是没有问题的，SOIC封装的如SN74HC04DRG3，SN74HC04DE4或SN74HC04DT。