74HCT CMOS, 74HCT540, DIP20, 5.5V; Logic IC Function:Octal Inverting Buffer/Line Driver (3-State); Logic IC Family:HCT; Logic IC Base Number:74540; Voltage, Supply Min:4.5V; Voltage, Supply Max:5.5V; Case Style:DIP; Operating Temperature Range:-55°C to +125°C; Base Number:74; IC Generic Number:74HCT540; Logic Function Number:540; No. of Gates:8; No. of Inputs:1; No. of Pins:20; Supply Voltage:5.5V; Temp, Op. Max:125°C; Temp, Op. Min:-55°C; Termination Type:Through Hole