SN74LVC1G07DCKR, SN74LVC1G07DCKRG4, SN74LVC1G07DCKRG4是什么区别，有没有详细的文档说明？

可以参考逻辑器件的FAQ：
Historically, G4 and E4 suffixes meant that the devices were rated to be “Green” or “Lead Free.” However, as time has passed, all devices have been pushed to these new “Green” or “Lead Free” standards, but the specific part orderables have remained available so that customers have had a consistent orderable part number.

链接如下：
e2e.ti.com/.../3545.07-part-numbers