Texas Instruments

SN74LS03N  

Gates and Inverters

SN74LS03N Description

The SN74LS03N from Texas Instruments is a quad 2-input NAND gate IC belonging to the 74LS series of low-power Schottky logic devices. Housed in a 14-pin DIP package, it features open-collector outputs, enabling wired-AND configurations and direct interfacing with higher-voltage circuits. Operating within a 4.75V to 5.25V supply range, it delivers a maximum propagation delay of 32ns at 5V with 15pF load, making it suitable for moderate-speed digital applications. The device is designed for through-hole mounting, ensuring robust mechanical stability in industrial and prototyping environments.

SN74LS03N Features

• Open-Collector Outputs: Allows flexible interfacing with external pull-up resistors for voltage level shifting or driving higher-current loads.
• Low Power Consumption: Typical of the 74LS series, it balances speed and energy efficiency.
• Wide Operating Voltage Range: Tolerates supply variations from 4.75V to 5.25V, ensuring reliability in TTL systems.
• High Noise Immunity: Input logic levels (0.8V max for LOW, 2V min for HIGH) provide robust noise margins.
• RoHS3 Compliant & REACH Unaffected: Meets environmental standards without compromising performance.
• Quad Configuration: Integrates four independent NAND gates in a single package, saving board space.

SN74LS03N Applications

• Logic Signal Conditioning: Ideal for buffering and combining digital signals in control systems.
• Wired-AND Networks: Open-collector outputs enable shared bus architectures in multi-device communication.
• Industrial Control Systems: Withstands harsh environments due to its 0°C to 70°C operating range.
• Prototyping & Education: DIP package simplifies breadboard use for circuit design training.
• Interfacing with High-Voltage Circuits: Drives relays, LEDs, or other peripherals requiring higher voltages than standard TTL outputs.

Conclusion of SN74LS03N

The SN74LS03N excels in applications demanding flexible output configurations and moderate-speed logic operations. Its open-collector design, combined with low power consumption and robust noise immunity, makes it a versatile choice for industrial, automotive, and educational projects. Texas Instruments' adherence to RoHS3 and REACH standards ensures compliance with modern environmental regulations. For engineers seeking a reliable, space-efficient NAND gate solution, the SN74LS03N remains a proven performer in the 74LS family.

SN74LS03N Documents

Download datasheets and manufacturer documentation for SN74LS03N

Datasheets :

SN54,74(LS,S)03      

HTML Datasheet :

SN54,74(LS,S)03      

PCN Design/Specification :

Material Set 30/Mar/2017