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Texas Instruments LS Flip Flops are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for Texas Instruments LS Flip Flops. Description, Octal D-type Transparent Latches AND Edge-triggered Flip-flops. Company, Texas Instruments, Inc. Datasheet, Download LS datasheet. Quote . LS Datasheet, LS PDF, LS Data sheet, LS manual, LS pdf, LS, datenblatt, Electronics LS, alldatasheet, free, datasheet, Datasheets, .

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You will connect the circuit and write a simple program to verify its operation. 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. Links to all files referenced in the lab and prelab can be found in the Files section at the end of this document. Machine code ks374 fetched from memory and the instructions described are l3s74 by the processor.

This includes performing operations shift, add, subtract, clear on registers and memory locations and copying values from one location to another.

Briefly comment each line to describe what it does 10 words or fewer per line. Refer above for details on wiring the circuit. The point of this exercise is to actually follow all the steps on the checklist, not lss374 say you followed them.

LS Datasheet, PDF – Alldatasheet

Assume the voltage drop across the LED is 1. Also, see the course materials repository page. Please see the course web page for due dates. For this lab, you will adapt the string hash program from lab 1. When you record your answers, use the conventions described in the discussion section. Paste a copy of the lab portion of the Lab Writeup Checklist into your hand-in materials.


Think of how embarrassed you will be if you dagasheet something wrong after saying you followed the checklist. Pin 2 provides D0 to bus, Dagasheet 5 provides D1, etc.

You will be expected to assemble, disassemble, and time code by hand on tests and quizzes. We suggest each of the two students in your lab group be “in charge” of one of the two parts of the lab parts to help divide the work.

LS datasheet, Pinout ,application circuits DUAL 4-INPUT POSITIVE-NAND OHM LINE DRIVERS

All datashete parts of the hand-in should be submitted as a single document. For the lls374 in part B. Circuit Output Connections In the resistor network, each resistor is Ohms. Look carefully at the data sheet! It is OK to use CodeWarrior to check your work and make corrections after you have done it by daatasheet. Be sure to consult the Lab Writeup Checklist for both the prelab and lab writeup!

Your program shall meet the following requirements: Create a similar example using different, non-trivial e. Scan the printed-out document after you add the checkmarks and upload to the hand-in folder. You MUST follow these procedures or we will not accept your submissions. Code files should be submitted separately, per the lab FAQ. Note that 74LS labeling of “Q” outputs is in terms of bus bits and not per data sheet for this diagram.


For each question below, we suggest that you do the dataseet by hand and check it with an assembler. The term counter limit refers to the maximum value the counter runs to e.


It is easy to make small mistakes when you are in a hurry. Limit your answer to 40 words. This lab uses a flip-flop to hold a data value on a bar graph LED.

Assume that the output voltage is quiescent i. Assume that all setup, hold, pulse duration, and datasbeet times are valid and the outputs have settled for these sample points. Demonstrate that 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.

This lab uses the same circuit as Lab 2 part A. Confirm the operation using the simulator daatsheet make sure you got it right, which you need document only by saying “checked with simulator” in your hand-in.

To familiarize you with the operation of the LS flip-flop and understand how it can be integrated into a circuit. BUT, we expect both of you to understand and participate in the execution of both labs.

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. Do this by hand using the reference materials.