SN74LS02N. SN74LS02NSR. ACTIVE. SO. NS. Green (RoHS. & no Sb /Br). CU NIPDAU. LevelC-UNLIM. 0 to 74LS Lead Small Outline Integrated Circuit (SOIC), JEDEC MS, Narrow 74LS Absolute Maximum Ratings(Note 1). Note 1: The “Absolute Maximum . Details, datasheet, quote on part number: 74LS02 SRP High Speed Current Mode PWM Control IC for Switching Power Supply. HD 4-bit And/or.

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The chip also dataxheet TTL outputs which are a must in some systems. When you want logic inverter. The chip is available in different packages and is chosen depending on requirement.

This output is connected to a LED trough a current limiting resistor. This Datasehet is connected to detect the state of output. With that the total drop across both transistors will be zero. Previous 1 2 Submitted by admin on 5 April Because transistor drop is zero Y1 will be LOW.

IC TTL 74LS02 datasheet & applicatoin notes – Datasheet Archive

Here are a few cases why it is used. The chipis basically used when NOR logic function is required.

The four NOR gates in the chip mentioned earlier are connected internally as shown below. Output of the gate is taken out from joint collector of both transistors.

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When one of buttons is pressed.

VCC-Connected to positive voltage to provide power to all four gates. Using continuously under heavy loads. They are also plug in replace ments for LSTTL devices giving avalue of the IC ‘s internal equivalent capacitance which is calculated from the operating current. The chip has four Datashret gates in it.

7402 – 7402 Quad 2-Input NOR Gate Datasheet

For realizing the above truth table let us take simplified NOR gate and have it connected as shown below. No abstract text available Text: When both buttons are not pressed.

Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in IC performance or even. Using continuously under heavy loadsns Per input: The internal circuit is composed of 3 stages, including aCompatible with TTL outputs.

The buttons are connected to change the logic of inputs. In that state the current flow through base of both transistors will be zero. And if your project doesn’t require a specific brand of ICselect from thedoesn’t require a specific brand of ICselect from the functionally equivalent Jameco Value Offering. The two inputs are driven out from bases of two transistors.

Now let us consider a few states: After verifying the three states, you can tell that we have satisfied the above truth table. TL — Programmable Reference Voltage. In the circuit two transistors are connected to form a NOR gate.

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(PDF) 74LS02 Datasheet download

Both transistors will be ON and voltage across both of them will be zero. It 74ls022 really popular and is available everywhere. The description for each pin is given below. With them the switching delays of gates are minimized.

These two inputs are connected to buttons.

LIIF netlist writer version 4. Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in ICcurrent Per input: Datasgeet buffered outputs, improving the output transition characteristics. We can use one or all gates. They are also plug in replace ments for LSTTL devices giving a reductionC pd n pd isdelined as the value otthe IC ‘s internal equivalent capacitance which is calculated.

The internal circuit is composed of 3 stages, including. Because of this the chip can be used high speed applications. When both buttons are 74,s02. Where high speed NOR operation is necessary. Like this we can use each gate of the chip depending on requirement.