SN74LS02N. SN74LS02NSR. ACTIVE. SO. NS. Green (RoHS. & no Sb /Br). CU NIPDAU. LevelC-UNLIM. 0 to 74LS 74LS02 is a LOGIC GATE IC and member of 74XXYY IC series which are logic Where to use 74LS02 IC 74LS02 NOR Gate IC Datasheet. Free 74LS02 semiconductor datasheets. Datasheet search.

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TL — Programmable Reference Voltage. Tokyo 03 Fax: The chip also provides TTL outputs which are a must in some systems. Where 74ld02 speed NOR operation is necessary.

74LS02 Datasheet

VCC-Connected to positive voltage to provide power to all four gates. Copyright ‘ Hitachi, Ltd.

Now let us consider a few states: For realizing the above truth table let us take simplified NOR gate and have it connected as shown below. Confirm that you have received the latest product standards or specifications before final design, purchase or use.

74LS02 Datasheet(PDF) – Fairchild Semiconductor

With that the total drop across both transistors will be zero. Confirm that you have. We can use one or all gates. The description for each pin is given below. Submitted by admin on 5 April In the circuit two transistors are connected to form a NOR gate. The two inputs are driven out from bases of two transistors. Hitachi Asia Hong Kong Ltd. Hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges.


IC Datasheet: 74LS02

For further information write to: The chipis basically used when NOR logic function is required. Design your application so satasheet the product is used within the ranges guaranteed by Hitachi particularly. These two inputs are connected to buttons. Here are a few cases why it is used.

Even within the guaranteed ranges, consider normally foreseeable failure rates or failure modes in semiconductor devices and employ systemic measures such as fail- safes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other consequential damage due to operation of the Hitachi product.

No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without. In that state the current flow through base datasheer both transistors will be zero. The four NOR gates in the chip mentioned earlier are connected internally as shown below. Even within the guaranteed ranges, consider normally foreseeable. This product is not designed to be radiation resistant.


This LED is connected to detect the state of output. When both buttons are not pressed. Because of this the chip can be used high speed applications.

After verifying the three states, you can tell that we have satisfied the above truth table. Hitachi Semiconductor America Inc. When one of buttons is pressed. With them the switching delays of gates are minimized. Products and product specifications may be subject to change without notice.