ParameterComparisonValue Vcc range (V) equals not equal All 2.0 to 6.0 4.5 to 5.5 4.75 to 5.25 Input Level equals not equal All TTL CMOS Output Level equals not equal All TTL CMOS Output Drive (mA) = < != >= > <= All -4/4 -2.6/8 -0.4/8 Output equals not equal All 2S 3S No. of Bits = < != >= > <= All 4 8 16 th (ns) = < != >= > <= All 0 5 tpd(max) (ns) = < != >= > <= All 19 22 27 28 30 45 tsu (ns) = < != >= > <= All 15 16 20