Dump the microprocessor and build your circuit using fundamental logical operations using Fairchild Semiconductor"s MM74HCT08MX logic gates. This gate has a minimum operating temperature of -40 °C and a maximum of 85 °C. This product will be shipped in tape and reel packaging so that components can be mounted effectively. This device has a typical operating supply voltage of 5 V. Its minimum operating supply voltage of 4.5 V, while its maximum is 5.5 V.