HD74LS32

The HD74LS32 is a kind of quadruple 2-input positive OR gate.

The following is about the electrical characteristics (Ta=-20 to +75) of HD74LS32: (1)input voltage, VIH: 2.0 V min; (2)input voltage, VIL: 0.8 V max; (3)output voltage, VOH: 2.7 V min at VCC=4.75 V, VIH=2 V, IOH=-400A; (4)output voltage, VOL: 0.5 V max at VCC=4.75 V, VIL=0.8 V, IOL=8 mA and 0.4 V at VCC=4.75 V, VIL=0.8 V, IOL=4 mA; (5)input current, IIH: 20A max at VCC=5.25 V, VI=2.7 V; (6)input current, IIL: -0.4 mA max at VCC=5.25 V, VI=0.4 V; (7)input current, II: 0.1 mA max at VCC=5.25 V, VI=7 V; (8)short-circuit output current, IOS: -20 mA min and -100 mA max at VCC=5.25 V; (9)supply current, ICCH: 3.1 mA typ and 6.2 mA max at VCC=5.25 V; (10)supply current, ICCL: 4.9 mA typ and 9.8 mA max at VCC=5.25 V; (11)input clamp voltage, VIK: -1.5 V max at VCC=4.75 V, IIN=-18 mA.

The last one is about the switching characteristics (VCC=5 V, Ta=25) of HD74LS32: (1)propagation delay time, tPLH: 14 ns typ and 22 ns max at CL=15 pF, RL=2 k; (2)propagation delay time, tPHL: 14 ns typ and 22 ns max at CL=15 pF, RL=2 k.