SN54/74LS490 DUAL DECADE COUNTER
The SN54 / 74LS490 contains a pair of high-speed 4-stage ripple counters. Each half of the SN54 / 74LS490 has individual Clock, Master Reset and Master Set (Preset 9) inputs. Each section counts in the 8, 4, 2, 1 BCD code.
Dual Version of SN54 / 74LS490 Individual Asynchronous Clear and Preset to 9 for Each Counter ...
