AND Gate IC 4 Channel 14-SO
The 74HCT08D is a quad 2-input AND Gate with TTL input switching levels. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.
The SN74HCT08DR is a quadruple 2-input Positive-AND Gate contains four independent circuits. This device perform the Boolean function Y = A • B or Y = (A\ + B\\)\ in positive logic. The device operates at voltage range of 4.5 to 5.5V and outputs can drive up to 10 LSTTL loads.