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Text: fZ 7 S G S -T H O M S O N Ä T # M O O [f»[Li TO «i M54HC390 M 74HC390 DUAL DECADE COUNTER • HIGH SPEED î m a x = 84 MHz TYP. AT Vcc = 5 V ■ LOW POWER DISSIPATION Ice = 4 nA (MAX.) AT Ta = 25 °C ■ HIGH NOISE IMMUNITY V nih = V nil = 28 % Vcc (MIN.)