For rapid fast switching implement this binary 74HC393D,652 counter shift register by NXP Semiconductors. This counter shift register has a minimum operating temperature of -40 °C and a maximum of 125 °C. This product comes packaged in bulk, so the parts will be stored loosely. This device has a typical operating supply voltage of 5 V. Its minimum operating supply voltage of 2 V, while its maximum is 6 V.