SN74LS55 Overview
2-WIDE 4-INPUT AND-OR-INVERT GATE VCC 14 13 12 11 10 9 8 1234567 GND GUARANTEED OPERATING RANGES Symbol Parameter VCC Supply Voltage TA Operating Ambient Temperature Range IOH Output Current High IOL Output Current Low SN54/74LS55 2-WIDE 4-INPUT AND-OR-INVERT.