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.
SN54190, SN54191, SN54LS190, SN54LS191,
SN74190, SN74191, SN74LS190, SN74LS191
SYNCHRONOUS UPIDOWN COUNTERS WITH DOWN/UP MODE CONTROL
DECEMBER 1 9 7 2 -R E V IS E D M AR C H 1 9 8 8
Counts 8-4-2
