SN5401J

The SN5401J from Texas Instruments is a quadruple 2-input positive-NAND gate IC designed for military applications. This device contains four independent gates, each requiring two inputs and providing a NAND logic function. The open-collector outputs are a key feature, allowing them to be connected to other open-collector outputs for active-low wired-OR or active-high wired-AND functions, and enabling the generation of higher VOH levels when used with appropriate pull-up resistors.

This component operates over a wide supply voltage range of 4.5V to 5.5V, making it suitable for various power configurations. Its military-grade designation is supported by an extended operating temperature range from -55°C to 125°C, ensuring reliable performance in demanding environments. The SN5401J is housed in a 14-pin CDIP (Ceramic Dual In-line Package), a robust package type often used in military and industrial applications.

Designed for dependability, the SN5401J is manufactured by Texas Instruments, a trusted name in electronic components. Its open-collector nature requires external pull-up resistors for proper operation, a common design consideration for this type of logic gate. This IC is well-suited for digital logic applications where wired-OR or wired-AND logic is needed, or where level shifting is accomplished via open-collector outputs.