SN74LS181

4-BIT ARITHMETIC LOGIC UNIT The SN54 / 74LS181 is a 4-bit Arithmetic Logic Unit (ALU) which can perform all the possible 16 logic, operations on two variables and a variety of arithmetic operations. Provides 16 Arithmetic Operations Add, Subtract, Compare, Double, Plus Twelve Other Arithmetic Operations Provides all 16 Logic Operations of Two Variables Exclusive — OR, Compare, AND, NAND, OR, NOR, Plus Ten other Logic Operations Full Lookahead for High Speed Arithmetic Operation on Long Words Input Clamp Diodes CONNECTION DIAGRAM DIP (TOP VIEW) VCC A1 B1 A2 B2 A3 B3 G Cn+4 P A=B F3 24 23 22 21 20 19 18 17 16 15 14 13 1 2 3 4 5 6 7 8 9 10 11 12 B0 A0 S3 S2 S1 S0 Cn M F0 F1 F2 GND NOTE: The Flatpak version has the same pinouts (Connection Diagram) as the Dual In-Line Package. PIN NAMES LOADING (Note a) HIGH LOW A0 – A3, B0 – B3 S0 – S3 M Cn F0 – F3 A=B G P Cn+4 Operand (Active LOW) Inputs Function — Select Inputs Mode Control Input Carry Input Function (...