SN7400N

Overview

The SN7400N is a quad 2-input NAND gate manufactured by Texas Instruments, belonging to the standard 7400 logic series. It utilizes bipolar TTL technology and is housed in a 14-pin PDIP package for through-hole mounting. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports an operating temperature range from 0°C to +70°C. Key electrical characteristics include a propagation delay of 11 ns, a low-level output current capability of 16 mA, and a high-level output current of -400 uA.

Feature Summary

• Contains four independent 2-input NAND logic gates within a single integrated circuit
• Provides robust low-level sink current capability for driving loads
• Designed for standard through-hole PCB assembly using a 14-pin DIP form factor

Applications

• Digital logic circuit design requiring basic NAND functionality
• Signal gating and switching applications in electronic systems
• Educational prototyping and breadboard development

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and environmental compliance. Ensure the selected variant matches the required lead time and packaging format for your manufacturing process. Cross-reference the datasheet revision history to confirm compatibility with your design specifications before finalizing procurement orders.

Selection Notes

Select this component when a standard quad 2-input NAND gate is required for through-hole designs. Consider the 11 ns propagation delay and 16 mA output drive strength relative to system timing requirements. Verify that the 0°C to +70°C commercial temperature range meets the operational environment constraints of the target application.

Part Context

This part belongs to the Texas Instruments SN7400 series, a foundational family of digital logic ICs widely used in industrial and consumer electronics. The SN7400N specifically denotes the PDIP-14 package version, distinguishing it from surface-mount variants like the NSR or SOIC packages. It serves as a core building block for complex combinational logic circuits.

Replacement Considerations

Compatible substitutes include the SN7400NE4 (lead-free compliant) and generic equivalents such as the 74LS00, provided voltage levels and speed requirements are met.