Characteristics HS/HST Series • High Speed performance HS propagation delays comparable to HC HST propagation delays comparable to HCT • High noise immunity HS VNIH = VNIL = 28% of VCC (CMOS compatible inputs) HST VIH = 2.0V, VIL = 0.8V (TTL compatible inputs) • Low noise generation Output edge rates comparable to HC/HCT One half the output current drive of HC/HCT Single output switching • Balanced output current drive |IOH| = IOL = 2 mA @ VCC = 4.5V • Low quiescent power consumption ICC < 1 μA @ 25°C • Broad VCC operating range HS 2V to 6V with 2V, 3V, 4.5V and 6V specs HST 4.5V to 5.5V for standard 5V operation • Dual rail ESD protection for input and output • Industry standard single-gate functions and pin out • Space saving SMT packaging in SOT23 and SC70