![DM74AS30 8 Input NAND Gate - hep.physics.lsa.umich.edu](http://s1.studyres.com/store/data/003082906_1-268a793a5007d11814d627790315d516-300x300.png)
Logic Lab 1 . - Fordham University
... Resistors are needed to provide the pull-up function on gate inputs and the currentlimiting function on LEDs. The resistors used for this lab are packaged with cylindrical bodies having leads coming straight out the ends. Bend them into a square U shape for insertion into the breadboard. The resisto ...
... Resistors are needed to provide the pull-up function on gate inputs and the currentlimiting function on LEDs. The resistors used for this lab are packaged with cylindrical bodies having leads coming straight out the ends. Bend them into a square U shape for insertion into the breadboard. The resisto ...
Matt Kemp`s take on the EE interview process
... ohm resistor, 5 V source, button press and an LED • Build a circuit that will take a sinusoidal input and give a DC output = to the sinusoids amplitude • Analyzed a simple circuit they had built and point out the flaws (When the board was populated the manufacture put parts on backward and wrong val ...
... ohm resistor, 5 V source, button press and an LED • Build a circuit that will take a sinusoidal input and give a DC output = to the sinusoids amplitude • Analyzed a simple circuit they had built and point out the flaws (When the board was populated the manufacture put parts on backward and wrong val ...
Task 2-1: Effect of Missing Inputs to TTL Gates
... In this task I built a circuit with a 7404 IC using two NOT gates and connected the outputs of these gates together. Then I recorded the output voltage, which is presented in the table above. The inputs that made the voltage appear normal were 00 and 11. The inputs that gave abnormal readings were 0 ...
... In this task I built a circuit with a 7404 IC using two NOT gates and connected the outputs of these gates together. Then I recorded the output voltage, which is presented in the table above. The inputs that made the voltage appear normal were 00 and 11. The inputs that gave abnormal readings were 0 ...
Pass Transistors Beef Up Voltage Regulators Last month we
... Pass Transistors Beef Up Voltage Regulators Last month we learned how to make any fixed voltage regulator adjustable. However, many fixed regulators such as the 7805 limit their output current to 1.5 amps. While this may be adequate for many QRP transceivers, amateurs would often like to run a low p ...
... Pass Transistors Beef Up Voltage Regulators Last month we learned how to make any fixed voltage regulator adjustable. However, many fixed regulators such as the 7805 limit their output current to 1.5 amps. While this may be adequate for many QRP transceivers, amateurs would often like to run a low p ...
EUP2412 500kHz Synchronous Step-Up Converter with 600mA LDO
... inrush current. The EUP2412 synchronous step-up convert regulates the output voltage up to 6V. When the synchronous step-up convert is disabled, the internal conduction path from SW to OUT is fully blocked. This output disconnect feature isolates the output from the input and reduces the shutdown cu ...
... inrush current. The EUP2412 synchronous step-up convert regulates the output voltage up to 6V. When the synchronous step-up convert is disabled, the internal conduction path from SW to OUT is fully blocked. This output disconnect feature isolates the output from the input and reduces the shutdown cu ...
Measuring Input Impedance If we want to measure the input
... In the diagram above, Zout is the output impedance of the circuit to be measured. If you measure the open circuit voltage V (with no load), then add the load resistor, R1 and the measured voltage is now V0 as pictured. The voltage drop across Zout is V – V0, the output current is Iout = V0/R1, and s ...
... In the diagram above, Zout is the output impedance of the circuit to be measured. If you measure the open circuit voltage V (with no load), then add the load resistor, R1 and the measured voltage is now V0 as pictured. The voltage drop across Zout is V – V0, the output current is Iout = V0/R1, and s ...
Real Op-Amp Input and Output Resistances
... input terminals of a real op-amp. Q: Well of course! We just studied this topic. We already know that there is a bias current IB flowing into (or out of) real op-amp terminals! ...
... input terminals of a real op-amp. Q: Well of course! We just studied this topic. We already know that there is a bias current IB flowing into (or out of) real op-amp terminals! ...
Transistor–transistor logic
![](https://commons.wikimedia.org/wiki/Special:FilePath/68k_ttl.jpg?width=300)
Transistor–transistor logic (TTL) is a class of digital circuits built from bipolar junction transistors (BJT) and resistors. It is called transistor–transistor logic because both the logic gating function (e.g., AND) and the amplifying function are performed by transistors (contrast with RTL and DTL).TTL is notable for being a widespread integrated circuit (IC) family used in many applications such as computers, industrial controls, test equipment and instrumentation, consumer electronics, synthesizers, etc. The designation TTL is sometimes used to mean TTL-compatible logic levels, even when not associated directly with TTL integrated circuits, for example as a label on the inputs and outputs of electronic instruments.After their introduction in integrated circuit form in 1963 by Sylvania, TTL integrated circuits were manufactured by several semiconductor companies, with the 7400 series (also called 74xx) by Texas Instruments becoming particularly popular. TTL manufacturers offered a wide range of logic gate, flip-flops, counters, and other circuits. Several variations from the original bipolar TTL concept were developed, giving circuits with higher speed or lower power dissipation to allow optimization of a design. TTL circuits simplified design of systems compared to earlier logic families, offering superior speed to resistor–transistor logic (RTL) and easier design layout than emitter-coupled logic (ECL). The design of the input and outputs of TTL gates allowed many elements to be interconnected.TTL became the foundation of computers and other digital electronics. Even after much larger scale integrated circuits made multiple-circuit-board processors obsolete, TTL devices still found extensive use as the ""glue"" logic interfacing more densely integrated components. TTL devices were originally made in ceramic and plastic dual-in-line (DIP) packages, and flat-pack form. TTL chips are now also made in surface-mount packages. Successors to the original bipolar TTL logic often are interchangeable in function with the original circuits, but with improved speed or lower power dissipation.