M74HC4518 - (M74HC4518 / M74HC4520) DUAL COUNTER
The M54/74HC4518/4520 are high speed CMOS DUAL 4 BIT BINARY COUNTERS fabricated in sili2 con gate C MOS technology.
They have the same high speed performance of LSTTL combined with true CMOS low power consumption.
They consists of two identical internally synchronous 4-stage counters.
The counter st
www.DataSheet.co.kr M54/M74HC4518 M54/M74HC4520 HC4518 DUAL DECADE COUNTER HC4520 DUAL 4 BIT BINARY COUNTER .
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HIGH SPEED fMAX = 55 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 SYMMETRICAL OUTPUT IMPEDANCE |IOH| = IOL = 4 mA (MIN.) BALANCED PROPAGATION DELAYS tPLH = tPHL WIDE OPERATING VOLTAGE RANGE VCC (OPR) = 2 V TO 6 V PIN AND FUNCTION COMPATIBLE WITH 4520B
