Part, 74LS Category. Description, Octal D-type Transparent Latches AND Edge-triggered Flip-flops. Company, Texas Instruments, Inc. Datasheet, Download. 74LS datasheet, 74LS pdf, 74LS data sheet, datasheet, data sheet, pdf, Fairchild Semiconductor, 3-STATE Octal D-Type Transparent Latches and. Part Number: 74LS, Maunfacturer: Motorola, Part Family: 74, File type: PDF, Document: Datasheet – semiconductor.

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All non-code parts of the hand-in should be submitted as a single document. Assume that the output voltage is quiescent i. You will connect the circuit and write a simple program to verify its operation.

Machine code is fetched from memory and the instructions described are executed by the processor. Refer above for details on wiring the circuit. Why is it valid or invalid?

You will be expected to assemble, disassemble, and time code by hand on tests and quizzes. And, as always, you must do the pre-labs independently.

Limit your answer to 40 words.

74LS Datasheet Fairchild Semiconductor pdf data sheet FREE from

Using a checklist is your best defense against this in general, and in particular is extremely helpful for avoiding unnecessary point losses when handing in assignments for this course.

Confirm the operation using the simulator to make sure you got it right, which you need document only by saying “checked with simulator” in your hand-in. For the questions involving the running sum, you may find it faster to compute the sum using a formula for an arithmetic sequence, rather than doing the sum iteratively.


Code files should be submitted separately, per the lab FAQ. You MUST follow these procedures or we will not accept your submissions. Demonstrate datashert you can read and understand the datasheet for an IC and use it in a circuit. Pick an instruction where the exact execution time differs from the best case execution time and explain why in one sentence. The first instruction is done as an example. For example, if Q7 is high, and Q6: Put a brief comment at the beginning which describes the datazheet function of the code.

Search Results for 74LS374 : 2 documents found

Also, see the course materials repository page. Do this by hand — do NOT use the simulator since it will give exact execution time and not best case execution time. Do this by hand using the reference materials.

Pin 2 provides D0 to bus, Pin 5 provides D1, etc. Briefly 74l374 each line to describe what it does 10 words or fewer per line. Paste a copy of the lab portion of the Lab Writeup Checklist into your hand-in materials. For each question below, we suggest that you do the work by hand and check it with an assembler.

To familiarize you with the operation of the LS flip-flop and understand how it can be integrated into a circuit. This lab uses the same circuit as Lab 2 part A. For this lab, you will adapt the string hash 74ls3744 from lab 1.


Scan the printed-out document after you add the checkmarks and upload to the hand-in folder. When you record your answers, use the conventions described in the discussion section. Look carefully at the data sheet! Note that 74LS labeling of 774ls374 outputs is in terms of bus bits and not per data sheet for this diagram. Links to all files referenced in the lab datashete prelab can be found in the Files section at the end of this document. It is OK to use CodeWarrior to check your work and make corrections after you have done it by hand.


Please see the course web page for due dates. Assume the voltage drop across the LED is 1. Be sure to consult the Lab Writeup Checklist for both the prelab and lab writeup! Your program shall meet the following requirements: Datasheeet is easy to make small mistakes when you are in a hurry. For the questions in part B. BUT, we expect both of you to understand and participate dahasheet the execution of both labs. This lab uses a flip-flop to hold a data value on a bar graph LED.

We suggest each of the two datashet in your lab group be “in charge” of one of the two parts of the lab parts to help divide the work. Think of how embarrassed you will be if you get something wrong after saying you followed the checklist.