Datasheet Summary
M54/74HC690/691 M54/74HC692/693
HC690/692 DECADE COUNTER/REGISTER (3-STATE) HC691/693 4 BIT BINARY COUNTER/REGISTER (3-STATE)
HIGH SPEED fMAX = 50 MHz (TYP.) at VCC = 5 V LOW POWER DISSIPATION ICC = 4 µA (MAX.) at TA = 25 °C .. HIGH NOISE IMMUNITY VNIH = VNIL = 28 % VCC (MIN.) OUTPUT DRIVE CAPABILITY 15 LSTTL LOADS (for QA to QD) 10 LSTTL LOADS (for RCO) SYMMETRICAL OUTPUT IMPEDANCE IOH = IOL = 6 mA (MIN.) (for QA to QD) IOH = IOL = 4 mA (MIN.) (for RCO) BALANCED PROPAGATION DELAYS tPLH = tPHL WIDE OPERATING VOLTAGE RANGE VCC (OPR) = 2 V to 6 V PIN AND FUNCTION PATIBLE WITH LSTTL 54/74LS690/691 DESCRIPTION The HC690/691/692/693 are high speed CMOS COUNTER/REGISTER...