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74181 ALU design on Altera MAX II CPLD

Posted on Monday, December 21st, 2015 in Chips, CPLD by DP

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Dilshan Jayakody writes:

74181 is 4-bit arithmetic and logic unit introduced by Texas Instruments in March 1970 and it is known for being the first ALU in single package. This chip is no longer in manufacturing but still it is quite popular in CA (computer architecture) courses in many colleges.
To test the behavior of this 4-bit ALU we decided to construct it on Altera MAX II CPLD. For this project we choose EPM240T100C5 CPLD and logic design is implement using Altera Quartus II. For logic design we refer Fairchild Semiconductor’s DM74LS181 datasheet. This setup is tested on basic EPM240 series development board with some mechanical switches and couple of LEDs.

Project info at Jayakody’s blog and elect.wikispaces.com.

This entry was posted on Monday, December 21st, 2015 at 11:45 pm and is filed under Chips, CPLD. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

One Response to “74181 ALU design on Altera MAX II CPLD”

  1. J. Peterson says:

    An 8K x 4 bit ROM also works for this. 4 bits x 2 for inputs, 4 for function, one for carry.

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