M74HC390
Dual decade counter
Features
■ HIgh Speed:
fMAX = 79MHz (Typ.
) at VCC = 6V
■ Low power dissipation:
)ICC = 4µA (Max.
) at TA = 25°C t(s■ High noise immunity: cVNIH = VNIL = 28 % VCC (Min.
) du■ Balanced propagation delays: rotPLH ≅ tPHL P■ Wide operating
voltage range: teVCC (Opr) = 2V to 6V le■ Pin and function compatible with 74 series 390 soDescription ObThe M74HC390 is an high speed
CMOS dual -decade counter fabricated with silicon gate )C2MOS technology.
t(sThis dual decade counter contains two ucindependent ripple carry counters.
Each counter dis composed of a divide by two and divide by five rocounter.
The divide by two and divide by five Pcounters can be cascaded to form d...