SN74HCS367/SN74HCS367-Q1 Hex Buffers/Line Drivers Texas Instruments SN74HCS367/SN74HCS367-Q1 Hex Buffer/Line Drivers are a hex buffer with 3-state outputs and Schmitt-trigger inputs. The device is configured into two banks, one with four drivers and one with two drivers, each controlled by its output enable pin. The Texas Instruments SN74HCS157-Q1 devices are AEC-Q100 qualified for automotive applications.