74HC14DR

(1) High speed: tpd = 11 ns (typ.) at VCC = 5 V
(2) Low power dissipation: ICC = 1.0 
µA (max) at T
a = 25 

(3) High noise immunity: V
H = 1.1 V (typ.) at VCC = 4.5 V
(4) Balanced propagation delays: tPLH
≈ tPHL
(5) Wide operating voltage range: VCC(opr) = 2.0 to 6.0 V