Is your microprocessor running out of IO ports? Reduce the number of electrical lines with Texas Instruments" SN74AHC157N multiplexer, a tool that can easily forward one of many selected lines into a single port! This multiplexer has an operating temperature range of -40 °C to 125 °C. This device comes in tube packaging. This non-inverting device has a typical operating supply voltage of 2.5|3.3|5 V. Its minimum operating supply voltage of 2 V, while its maximum is 5.5 V. It is made in a 4 x 2:1 configuration.