The SN54 / 74LS352 is a very high-speed Dual 4-input Multiplexer with Common Select inputs and individual Enable inputs for each section. It can select two bits of data from four sources. The two buffered outputs present data in the inverted (complementary) form. The SN54/ 74LS352 is the functional equivalent of the SN54/ 74LS153 except with inverted outputs.