MC14070B, MC14077B CMOS SSI Quad Exclusive OR and NOR Gates The MC14070B quad exclusive OR gate and the MC14077B quad exclusive NOR gate are constructed with MOS Pchannel and Nchannel enhancement mode devices in a single monolithic MC14070B, MC14077B MC14070B MC14077B QUAD Exclusive OR QUAD Exclusive NOR Gate Gate 1 1 3 3 2 2 5 5 4 4 6 6 8 8 10 10 9 9 12 12 11 11 13 13 V = PIN 14 DD V = PIN 7 SS (BOTH DEVICES) 20 ns 20 ns V V DD DD 90% 50% 10% V V in I SS DD 1/f V in * 50% DUTY CYCLE C L *Inverted output on MC14077B only. Figure 1. Power Dissipation Test Circuit and Waveform 20 ns 20 ns V DD V DD 90% PULSE INPUT 50% * GENERATOR 10% V SS t t PHL PLH C L V OH 90% V SS OUTPUT 50% 10% V OL t t THL TLH *Inverted output on MC14077B only. Connect unused input to V for MC14070B, to V for MC14077B. DD SS Figure 2. Switching Time Test Circuit and Waveforms