IC 74LS02 DATASHEET PDF

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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7402 – 7402 Quad 2-Input NOR Gate Datasheet

The four NOR gates in the chip mentioned earlier are connected internally as shown below. Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in ICcurrent Per input: VCC-Connected to positive voltage to provide power to all four gates. Because transistor drop is zero Y1 will be LOW. Has buffered outputs, improving the output transition characteristics.

We can use one or all gates. These two inputs are connected to buttons.

(PDF) 74LS02 Datasheet download

Using continuously under heavy loadsns Per input: This LED is connected to detect the state of output. Submitted by admin on 5 April With them the switching delays of gates are minimized. LIIF netlist writer version 4. When both buttons are not pressed. In the circuit two transistors are connected to form a NOR gate. No abstract text available Text: Both transistors will be ON and voltage across both of them will adtasheet zero. It is really popular and is available everywhere.

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This output is connected to a LED trough a current limiting resistor. Output of the gate is taken out from joint collector of both transistors.

74LS02 Datasheet(PDF) – Fairchild Semiconductor

The description for each pin is given below. The buttons datadheet connected to change the logic of inputs. The internal circuit is composed of 3 stages, including.

For realizing the above truth table let us take simplified NOR gate and have it connected as shown below. In that state the current flow through base of both transistors will be zero. TL — Programmable Reference Voltage. Because of this the chip can be used high speed applications. Here are a few cases why it is used.

Using continuously under heavy loads. 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 chip has four NOR gates in it. 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.

Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in IC performance or even. With that the total drop across both transistors will be zero. Now let us consider a few states: After verifying the three states, you can tell that we have satisfied the above truth table.

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The chipis basically used when NOR logic function is required. 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 two inputs are driven out from bases of two transistors. Like this we can use each gate of the chip depending on requirement.

When one of buttons is pressed. Previous 1 2 The chip also provides TTL outputs which are a must in some systems. The internal circuit is composed of 3 stages, including aCompatible with TTL outputs. When both buttons datashert pressed.

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The chip is available in different packages and is chosen depending on requirement. When you want logic inverter. Where high speed NOR operation is necessary.