74LS51 Datasheet | Fairchild Semiconductor

Description This device contains two independent binations of gates each of which performs the logic AND-OR-INVERT function. Each package contains one 2-wide 2-input and one 2-wide 3-input AND-OR-INVERT gates. Ordering Code: Order Number DM74LS51M DM74LS51N 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 Y1 = (A1) (B1) (C1) + (D1) (E1) (F1) Inputs A1 H X B1 H X C1 H X D1 X H E1 X H F1 X H Output Y1 L L H Other binations Y2 = ((A2) (B2) + (C2) (D2)) Inputs A2 H X B2 H X C2 X H D2 X H Output Y2 L L H Other binations H = HIGH Logic Level L = LOW Logic Level X = Either LOW or HIGH Logic Level © 2000 Fairchild Semiconductor Corporation DS006369 .fairchildsemi. DM74LS51 Absolute Maximum Ratings(Note 1) Supply Voltage Input Voltage Operating Free Air Temperature Range Storage Temperature Range 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 “Remended Operating Conditions” table will define the conditions for actual device operation. Remended Operating Conditions Symbol VCC VIH VIL IOH IOL TA Supply Voltage HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Current LOW Level Output Current Free Air Operating Temperature 0 Parameter Min 4.75 2 0.8 - 0.4 8 70 Nom 5 Max 5.25 Units V V V m A m A °C Electrical Characteristics over remended operating free air temperature range (unless otherwise noted) Symbol VI VOH VOL Parameter Input Clamp Voltage HIGH Level Output Voltage LOW Level Output Voltage...