This is one of the TTL types.
Part Number : 7402
Function : QUAD 2-INPUT NOR GATE
Package : DIP 14 Pin
Manufacturers : Fairchild, ON Semiconductor
See the preview image and the PDF file for more information.
Image
Description :
These devices contain four independent 2-input NOR Gates.
1. Voltage – Supply 4.75V ~ 5.25V
2. Current – Output High, Low 400µA, 8mA
3. Logic Level – Low 0.8V
4. Logic Level – High 2V
5. Max Propagation Delay @ V, Max CL 15ns @ 5V, 15pF
6. Operating Temperature 0°C ~ 70°C
Function Table ( Truth Table )
A B Y
H X L
X H L
L L H
7402 pinout
Other data sheets within the file : DM74LS02, SN74LS02D, SN74LS02DR2, 74LS02
7402 Datasheet
