Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

DM74LS90 Datasheet(PDF) 2 Page - Fairchild Semiconductor

Part No. DM74LS90
Description  Decade and Binary Counters
Download  6 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
Logo 

DM74LS90 Datasheet(HTML) 2 Page - Fairchild Semiconductor

   
Zoom Inzoom in Zoom Outzoom out
 2 / 6 page
background image
www.fairchildsemi.com
2
Function Tables
BCD Count Sequence (Note 1)
Bi-Quinary (5-2) (Note 2)
H
= HIGH Level
L
= LOW Level
X
= Don’t Care
Note 1: Output QA is connected to input B for BCD count.
Note 2: Output QD is connected to input A for bi-quinary count.
Note 3: Output QA is connected to input B.
Logic Diagram
The J and K inputs shown without connection are for reference only and
are functionally at a high level.
Count
Output
QD
QC
QB
QA
0
L
LLL
1L
L
L
H
2L
L
H
L
3L
L
H
H
4L
H
L
L
5L
H
L
H
6L
H
H
L
7
L
HHH
8
H
LLL
9H
L
L
H
Count
Output
QA
QD
QC
QB
0
L
LLL
1L
L
L
H
2L
L
H
L
3L
L
H
H
4L
H
L
L
5
H
LLL
6H
L
L
H
7H
L
H
L
8H
L
H
H
9H
H
L
L


Html Pages

1  2  3  4  5  6 


Datasheet Download




Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn