NXP-74HCT-Series-Logic-Devices-NXP-SMD74HCT595D-p-The-74HC595D-is-an-8-stage-serial-shift-register-with-a-storage-register-&-3-state-outputs-The-registers-have-separate-clocks-br-br-Data-is-shifted-on-the-positive-going-transitions-of-the-shift-register-clock-input-SHCP-The-data-in-each-register-is-transferred-to-the-storage-register-on-a-positive-going-transition-of-the-storage-register-clock-input-STCP-If-both-clocks-are-connected-together-the-shift-register-will-always-be-on