LOGIC, OCTAL D-TYPE INV F-F, 20DIP; Flip-Flop Type:D; Propagation Delay:14ns; Frequency:50MHz; Output Current:6mA; Trigger Type:Positive Edge; IC Output Type:Tri State Inverted; Supply Voltage Range:4.5V to 5.5V; Logic Case Style:DIP; No. of Pins:20; Operating Temperature Range:-55°C to +125°C; SVHC:No SVHC (20-Jun-2011); Logic IC Base Number:74564; Logic IC Family:HCT; Logic IC Function:Octal Positive-Edge-Triggered Inverting D-Type Flip-Flop with 3-State Outputs; Output Type:Tri State Inverted; Package / Case:PDIP; Supply Voltage Max:5.5V; Supply Voltage Min:4.5V; Termination Type:Through Hole