SN7400DRG4

Overview

The SN7400DRG4 is a quadruple 2-input positive-NAND gate integrated circuit manufactured by Texas Instruments. It belongs to the standard 7400 logic series and utilizes bipolar TTL technology. The device operates within a supply voltage range of 4.75 V to 5.25 V. Key electrical parameters include a low-level output current of 16 mA, a high-level output current of -400 µA, and a maximum propagation delay of 22 ns at 5 V with a 15 pF load. It functions reliably across an operating temperature range of 0°C to +70°C.

Feature Summary

• Contains four independent 2-input NAND gates for complex logic implementation
• Provides robust low-level sink current capability for driving loads
• Operates on standard 5 V DC power supply rails
• Features push-pull outputs for active drive in both states

Applications

• General-purpose digital logic circuits
• Signal gating and switching applications
• Boolean function generation in control systems

Procurement Notes

Verify that the specific order matches the SN7400DRG4 designation to ensure correct logic family and package type. Confirm compliance with RoHS directives as indicated by the G4 suffix. Ensure the application environment remains within the specified 0°C to +70°C temperature limits and strictly adheres to the 4.75 V to 5.25 V supply voltage constraints to maintain signal integrity and device reliability.

Selection Notes

Select this component when standard TTL NAND functionality is required in a surface-mount SOIC-14 package. It serves as a direct replacement for through-hole DIP variants like the SN7400N in designs transitioning to SMD assembly. Consider the 16 mA output drive capability against load requirements. Verify that the 22 ns propagation delay meets the timing specifications of the target digital system.

Part Context

This part is a surface-mount variant of the industry-standard SN7400 quad NAND gate. The 'D' indicates the SOIC-14 package, while 'G4' denotes lead-free construction compliant with environmental standards. It is part of the broader Texas Instruments 7400 series portfolio, widely used in legacy and modern digital electronics for fundamental logic operations.

Replacement Considerations

The SN7400DR is a compatible alternative from the same manufacturer without the G4 environmental suffix. Other equivalents include the SN74LS00 for lower power consumption or the SN74HC00 for CMOS compatibility, though these require verification of voltage levels and speed characteristics.