Quad 2-input Positive-NAND Buffers With Open Collector Outputs

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 -55C to 125C. The SN7438 SN74LS38 and SN74S38 are characterized for operation from 0C to 70C.
By Texas Instruments