The IC 7400 or 74HC00N is a 14-pin chip and it includes four 2-input NAND gates. Every gate utilizes 2-input pins & 1-output pin, by the remaining 2-pins being power & ground. This chip was made with different packages like surface mount and through-hole which includes ceramic (or) plastic dual-in-line and flat pack. Lab Asia BD is a supplier of IC 7400 or integrated circuits 74HC00N in Bangladesh.