Toshiba TC74HC14AP(F) Hex Schmitt Trigger Logic Gate, 14-Pin PDIP, Logic Function: Inverter, Number of Elements per Chip: 6, Schmitt Trigger Input: Yes, Maximum Propagation Delay Time @ Maximum CL: 125 ns @ 2 V, 21 ns @ 6 V, 25 ns @ 4.5 V, Maximum High Level Output Current: -5.2mA, Mounting Type: Through Hole, Dimensions: 19.25 x 6.4 x 3.5mm, Length: 19.25mm