54HCT390 Datasheet - Texas Instruments

54HCT390, Dual Decade Ripple Counter

Data sheet acquired from Harris Semiconductor SCHS185C September 1997 - Revised October 2003 CD74HC390, CD54HCT390, CD74HCT390 High-Speed CMOS Logic

Applications

* of divide-by-2, 4. 5, 10, 20, 25, 50 or 100. Each section is triggered by the High-to-Low transition of the input pulses (nCP0 and nCP1).
For BCD decade operation, the nQ0 output is connected to the nCP1 input of the divide-by-5 section.
For bi-quinary decade operation, the nO3 output is connected t

54HCT390-etcTI.pdf