7402: Difference between revisions
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The '''7402''' (variants 74LS02, 74HC02) is a 74-series logic IC with four independent 2-Input NOR gates. | The '''7402''' (variants 74LS02, 74HC02) is a 74-series logic IC with four independent 2-Input NOR gates. | ||
== 7402 Pinout == | == 7402 Pinout == | ||
.--\/--. | |||
1Y --|01 14|-- +5V | |||
1A --|02 13|-- 4Y | |||
1B --|03 12|-- 4B | |||
2Y --|04 11|-- 4A | |||
2A --|05 10|-- 3Y | |||
2B --|06 09|-- 3B | |||
Gnd --|07 08|-- 3A | |||
Gnd --|07 08|-- 3A | `------' | ||
== Signal descriptions == | == Signal descriptions == | ||
Revision as of 04:14, 31 January 2013
The 7402 (variants 74LS02, 74HC02) is a 74-series logic IC with four independent 2-Input NOR gates.
7402 Pinout
.--\/--.
1Y --|01 14|-- +5V
1A --|02 13|-- 4Y
1B --|03 12|-- 4B
2Y --|04 11|-- 4A
2A --|05 10|-- 3Y
2B --|06 09|-- 3B
Gnd --|07 08|-- 3A
`------'
Signal descriptions
Y is low if either A or B is high, and is high if A and B are both low.
