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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And, as always, you must do the pre-labs independently. Assume the voltage drop across the LED is 1. Pick an instruction where the exact execution time differs from the best case execution time and explain why in one sentence.

Assume that the output voltage is quiescent i. Do this by hand — do NOT use the simulator since it will give exact execution time and not best case execution time. Please see the course fatasheet page for due dates. 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.

Put a brief comment at the beginning which describes the overall function of the code. BUT, we expect both of you to understand and participate in the execution of both labs. You MUST follow these procedures or we will not accept your submissions. When you record your answers, use the conventions described in the discussion section.


Pin 2 provides D0 to bus, Pin 5 provides D1, etc. Paste a copy of the lab portion of the Lab Writeup Checklist into 74os374 hand-in materials. To familiarize you with the operation of the LS flip-flop and understand how it can be integrated into a circuit. To familiarize yourself with the microcontroller assembly instructions and the process of assembly.

74LS Datasheet(PDF) – Fairchild Semiconductor

Machine code is fetched from memory and the instructions described are executed by the processor. For each question below, we suggest datasheeh you do the work by hand and check it with an assembler. Refer above for details on wiring the circuit. Create a similar example using different, non-trivial e. Embedded Hardware – Part B: For this lab, you will adapt the string hash program from lab 1.

Using a checklist is your best defense against this in general, and in particular datasgeet extremely helpful for avoiding unnecessary point losses when handing in assignments for this course. Code files should be submitted separately, per the lab FAQ. Think of how embarrassed you will be if you get something wrong after saying you followed the checklist. It is OK to use CodeWarrior to check your work and xatasheet corrections after you have done it by hand.

This lab uses a flip-flop to hold a data value on a bar graph LED.


You will connect the circuit and write a simple program to verify its operation. Be sure to consult the Lab Writeup Checklist for both the prelab and lab writeup! The term counter limit refers to the maximum value the counter runs to e.

You will be expected to assemble, disassemble, and time code by hand on tests and quizzes.

Search Results for 74LS374 : 2 documents found

You do not have to use the assembly program or the simulator. Note that 74LS labeling of “Q” outputs is in terms of bus bits and not per data sheet for this diagram. This lab uses the same circuit as Lab 2 part A. This includes datashet operations shift, add, subtract, clear on registers and datashest locations and copying values from one location to another.

Links to all files referenced in the lab and prelab can be found in the Files section at the end of this document.

74LS Datasheet Fairchild Semiconductor pdf data sheet FREE from

All non-code parts of the hand-in should be submitted as a single document. Why is it valid or invalid? Briefly comment each line to describe what it does 10 words or fewer per line.