5-1 fast and ls ttl data quad 2-input exclusive nor gate truth table in out ab z l l l l l l h h h h h h 14 13 12 11 10 9 123456 8 7 v cc gnd * * open collector outputs * ** guaranteed operating ranges symbol parameter min typ max unit v cc supply voltage 54 74 4.5 4.75 5.0 5.0 5.5 5.25 v t a operating ambient temperature range 54 74 55 0 25 25 125 70 c v oh output voltage e high 54, 74 5.5 v i ol output current e low 54 74 4.0 8.0 ma sn54/74ls266 quad 2-input exclusive nor gate low power schottky ordering information sn54lsxxxj ceramic sn74lsxxxn plastic sn74lsxxxd soic j suffix ceramic case 632-08 n suffix plastic case 646-06 14 1 14 1 14 1 d suffix soic case 751a-02
5-2 fast and ls ttl data sn54/74ls266 dc characteristics over operating temperature range (unless otherwise specified) sbl p limits ui t c di i symbol parameter min typ max unit test conditions v ih input high voltage 2.0 v guaranteed input high voltage for all inputs v il input low voltage 54 0.7 v guaranteed input low voltage for v il i npu t low v o lt age 74 0.8 v pg all inputs v ik input clamp diode voltage 0.65 1.5 v v cc = min, i in = 18 ma v oh output high voltage 54, 74 100 m a v cc = min, v oh = max v ol output low voltage 54, 74 0.25 0.4 v i ol = 4.0 ma v cc = v cc min, v in =v il or v ih v ol o u t pu t low v o lt age 74 0.35 0.5 v i ol = 8.0 ma v in = v il or v ih per truth table i ih input high current 40 m a v cc = max, v in = 2.7 v i ih i npu t high c urren t 0.2 ma v cc = max, v in = 7.0 v i il input low current 0.8 ma v cc = max, v in = 0.4 v i cc power supply current 13 ma v cc = max ac characteristics (t a = 25 c) sbl p limits ui t c di i symbol parameter min typ max unit test conditions t plh t phl propagation delay, other input low 18 18 30 30 ns v cc = 5.0 v t plh t phl propagation delay, other input high 18 18 30 30 ns cc c l = 15 pf, r l = 2.0 k w
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