IDT54FCT574DTQB Datasheet and IDT54FCT574DTQB manual

Manufacturer : IDT 

Packing : QSOP 

Pins : 20 

Temperature : Min -55 °C | Max 125 °C

Size : 184 KB

Application : Fast CMOS octal D register (3-state) 

IDT54FCT574DTQB PDF Download