DESCRIPTION

The M54/74HC590 is a high speed CMOS 8-BIT BINARY COUNTER REGISTER (3-STATE) fabricated in silicon gate C2MOS technology. It has the same high speed performance of LSTTL combined with true CMOS low power consumption.

■ HIGH SPEED fMAX = 62 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 10 LSTTL LOADS (for RCO) 15 LSTTL LOADS (for QA ～ QH)

■ SYMMETRICAL OUTPUT IMPEDANCE |IOH| = |IOL| = 6 mA (MIN.)FORQA~ QHOUTPUT |IOH| = |IOL| = 4 mA (MIN.) FOR RCO OUTPUT

■ BALANCED PROPAGATION DELAYS tPLH = tPHL

■ WIDE OPERATING VOLTAGE RANGE VCC (OPR) = 2 V TO 6 V

■ PIN AND FUNCTION COMPATIBLE WITH 54/74LS590