This site uses third-party website tracking technologies to provide and continually improve our services, and to display advertisements according to users' interests. I agree and may revoke or change my consent at any time with effect for the future.
SN54LS490, SN74LS490 DUAL 4-BIT DECADE COUNTERS
OCTOBER 1 9 7 6 REVISED M AR C H 1 9 8 8
Dual Versions of Popular SN54LS90 and SN74LS90 Counters Individual Clock. Direct Clear, and Set-to-9 Inputs