ParameterComparisonValue Vcc range (V) equals not equal All 2.0 to 6.0 2.0 to 3.6 4.5 to 5.5 4.75 to 5.25 Input Level equals not equal All TTL CMOS TTL/CMOS Output Level equals not equal All TTL CMOS LVTTL Output Drive (mA) = < != >= > <= All -24/24 -4/4 -1/20 -0.8/16 -0.4/8 -0.4/16 No. of Bits = < != >= > <= All 2 4 th (ns) = < != >= > <= All 0 1 5 10 tpd(max) (ns) = < != >= > <= All 7 7.5 9.2 18 19 20 26 30 37 40 tsu (ns) = < != >= > <= All 3 5 7 9.4 15 20 21 22