These devices contain four independent 2-input NAND buffer gates with open-collector outputs. The open-collector outputs require pull-up resistors to perform correctly. They may be connected to other open-collector outputs to implement active-low wired-OR or active-high wired-AND functions. Open-collector devices are often used to generate high VOH levels. The SN5438, SN54LS38, and SN54S38 are characterized for operation over the full military temperature range of -55°C to 125°C. The SN7438, SN74LS38, and SN74S38 are characterized for operation from 0°C to 70°C. https://elecena.pl/product/30570876/military-4-ch-2-input-4-5-v-to-5-5-v-bipolar-nand-gates-with-open-collector-outputs-j-14-55-to-125 2026-08-04 https://elecena.pl/product/30570876/military-4-ch-2-input-4-5-v-to-5-5-v-bipolar-nand-gates-with-open-collector-outputs-j-14-55-to-125 2026-10-05