Electronic Components Datasheet Search
  English  ▼

Delete All


Preview PDF Download HTML

DM5490 Datasheet(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. DM5490
Description  Decade and Binary Counters
Download  10 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com

DM5490 Datasheet(HTML) 1 Page - National Semiconductor (TI)

Zoom Inzoom in Zoom Outzoom out
 1 / 10 page
background image
July 1992
DM5490DM7490A DM7493A
Decade and Binary Counters
General Description
Each of these monolithic counters contains four master-
slave flip-flops and additional gating to provide a divide-by-
two counter and a three-stage binary counter for which the
count cycle length is divide-by-five for the 90A and divide-
by-eight for the 93A
All of these counters have a gated zero reset and the 90A
also has gated set-to-nine inputs for use in BCD nine’s com-
plement applications
To use their maximum count length (decade or four-bit bina-
ry) the B input is connected to the QA output The input
count pulses are applied to input A and the outputs are as
described in the appropriate truth table A symmetrical di-
vide-by-ten count can be obtained from the 90A counters by
connecting the QD output to the A input and applying the
input count to the B input which gives a divide-by-ten square
wave at output QA
Typical power dissipation
145 mW
130 mW
Count frequency 42 MHz
Connection Diagrams
Dual-In-Line Package
TLF6533 – 1
Order Number DM5490J DM5490W or DM7490AN
See NS Package Number J14A N14A or W14B
Dual-In-Line Package
TLF6533 – 2
Order Number DM7493AN
See NS Package Number N14A
C1995 National Semiconductor Corporation
RRD-B30M105Printed in U S A

Html Pages

1  2  3  4  5  6  7  8  9  10 

Datasheet Download

Link URL

Privacy Policy
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