74LS33

DM74LS33 Quad 2-Input NOR Buffer with Open-Collector Outputs March 1989 Revised March 2000 DM74LS33 Quad 2-Input NOR Buffer with Open-Collector Outputs General Description This device contains four independent gates each of which perform the logic NOR function. Outputs are open-collector. Ordering Code: Order Number DM74LS33M DM74LS33N Package Number M14A N14A Package Description 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Connection Diagram Function Table Y=A+B Inputs A L L H H H = HIGH Logic Level L = LOW Logic Level Output B L H L H Y H L L L © 2000 Fairchild Semiconductor Corporation DS010170 www.fairchildsemi.com DM74LS33 Absolute Maximum Ratings(Note 1) Supply Voltage Input Voltage Output Voltage Operating Free Air Temperature Range Storage Temperature Range 7V 7V 7V 0°C to +70°C −65°C to +150°C Note 1: The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The “Recommended Operating Conditions” table will define the conditions for actual device operation. Recommended Operating Conditions Symbol VCC VIH VIL VOH IOL TA Supply Volta...