Hi Expert,
In NXP 74HC595 datasheet, it has a description about serial output Q7S pin. From TI SN74HC595 datasheet, it has pin QH'. However, there is not description about serial output operation. Does SN74HC595 is exactly the same as 74HC595, especially for serial output function?
Link:
http://www.nxp.com/documents/data_sheet/74HC_HCT595.pdf
Thanks.
Zhou