The 74HC240 3-STATE buffer utilizes advanced silicon-gate CMOS technology. It possesses high drive current outputs which enable high speed operation even when driving large bus capacitances.

The 74HC32 is a 14 Pin Quad 2-Input OR Gate IC.?The 74HC32 provides four independent 2-input OR gates?with standard push-pull outputs. The device is designed for operation?with a power supply range of 2.0V to 6.0V.

74HC393 is a 14 Pin Dual 4-bit Binary Ripple Counter IC?having 2V to 6V Operating Voltage range and 50 Mhz Clock Frequency.?Each counter?features a clock input (nCP), an overriding asynchronous master reset input (nMR) and 4?buffered parallel outputs (nQ0 to nQ3).