Transcription of DM74LS181 4-Bit Arithmetic Logic Unit
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DM74LS181 4-Bit Arithmetic Logic Unit
2000 Fairchild Semiconductor 1988 Revised April 2000DM74LS181 4-Bit Arithmetic Logic UnitDM74LS1814-Bit Arithmetic Logic UnitGeneral DescriptionThe DM74LS181 is a 4-Bit Arithmetic Logic Unit (ALU)which can perform all the possible 16 Logic operations ontwo variables and a variety of Arithmetic 16 Arithmetic operations: add, subtract, com-pare, double, plus twelve other Arithmetic operationsnProvides all 16 Logic operations of two variables: exclusive-OR, compare, AND, NAND, OR, NOR, plusten other Logic operationsnFull lookahead for high speed Arithmetic operation onlong words Ordering Code: Logic SymbolsActive High OperandsActive Low OperandsVCC = Pin 24 GND = Pin 12 Connection DiagramPin DescriptionsOrder NumberPackage NumberPackage DescriptionDM74LS181NN24A24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-010, WidePin NamesDescriptionA0 A3 Operand Inputs (Active LOW)B0 B3 Operand Inputs (Active LOW)S0 S3 Function Select InputsMMode Control InputCnCarry InputF0 F3 Function Outputs (Active LOW)A = BComparator OutputGCarry Generate Output (Active LOW)PCarry Propagate Output (Active LOW)Cn+4 Carry DescriptionThe DM74LS181 is a 4-Bit high speed parallel ArithmeticLogic Unit (ALU).
DM74LS181 4-Bit Arithmetic Logic Unit DM74LS181 4-Bit Arithmetic Logic Unit General Description The DM74LS181 is a 4-bit Arithmetic Logic Unit (ALU) which can perform all the possible 16 logic operations on ... VIH HIGH Level Input Voltage 2 V VIL LOW Level Input Voltage 0.8 V IOH HIGH Level Output Current −0.4 mA
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