High−Performance Silicon−Gate CMOS. MC74HCA, MC74HCTA. They are pin compatible with Low-power Schottky The SNx4HC is anbit Parallel load shift register withserial input andparallel load input. FEATURES. E. Wide Operating Voltage Range ofV toV Outputs Can Drive Up ToLSTTL Loads Low Power Consumption, μA Max ICC Typical tpd =ns ±4-mA Output Drive atV. PartHCN. Asynchronousbit parallel load. Parallel-Input/ Serial-Output Shift Register. TheHC/HCT are high-speed Si-gate CMOS devices and are pin comp